Li, Chengdu
Ai Li, Chengdu CN
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20130133257 | Plant Container - A plant container includes a container body and an automate watering arrangement, wherein the automate watering arrangement includes a reserve unit and a plurality of watering units. Each of the watering units includes a guiding element and a watering element, wherein one end of the guiding element is communicated with the reserve unit, and another end of the guiding element is coupled with the watering element end-to-end. The watering element is downwardly extended from the guiding element and submerged into the soil of the planting cavity such that the water of the reserve unit is guided to flow to the soil of the planting cavity via the watering element so as to maintain a moisture level of the soil for the plant. | 05-30-2013 |
20130212939 | Automate Water Permeating Arrangement for Plant Container - An automate water permeating arrangement includes a water reservoir reserving a predetermined amount of water and a plurality of water permeating elements. Each of the water permeating elements has a water guiding end extended from the water reservoir and a water permeating end being selectively submerged into a particular area of a pot cavity of a plant container under a top surface level of a soil, wherein the water permeating elements are adapted for guiding the water from the water reservoir to the particular areas of the pot cavity and for gradually permeating the water at the water permeating ends of the water permeating elements so as to maintain and control a moisture level of the soil. | 08-22-2013 |
Baihua Li, Chengdu CN
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20140316728 | SYSTEM AND METHOD FOR SOC ESTIMATION OF A BATTERY - The present invention provides a SOC estimation method applied to a battery system comprising a battery pack. The SOC estimation method comprises the steps of: determining an initial SOC value; determining whether the battery pack is in a working status; measuring the voltage and current of the battery pack if the battery pack is in the working status; calculating a current SOC value by using an ampere-hour method based on the initial SOC value and the measured voltage and current; determining dynamic characteristic parameters of the battery pack; and optimizing the current SOC value by using extended Kalman filter (EKF) method and based on the dynamic characteristic parameters of the battery pack. | 10-23-2014 |
Bei Ning Li, Chengdu CN
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20160019261 | METHODS, SYSTEMS, AND APPARATUS FOR SEARCH OF ELECTRONIC INFORMATION ATTACHMENTS - Methods, systems, and computer program products for generating a search of attachments are described. A search request based on a business template is obtained, the business template comprising a node containing an identity of an entity to which the attachment is attached and an attachment sub-node. A search request based on an attachment template is obtained, the attachment template comprising a root node referring to the attachment sub-node of the business template and a node containing an identity of the attachment. A search is performed based on the business template and the attachment template. | 01-21-2016 |
Bincheng Li, Chengdu CN
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20090244541 | CAVITY RING-DOWN APPARATUS AND METHOD FOR MEASURING REFLECTIVITY OF HIGHLY REFLECTIVE MIRRORS - A cavity ring-down apparatus and method is provided for measuring the reflectivity of highly reflective mirrors. The apparatus comprises an optical ring-down cavity including three highly-reflective mirrors whose frequency-selective optical transmission is retro-reflected into the oscillator cavity of a continuous-wave semiconductor laser, creating a change of output spectrum of said laser and enhancing the coupling coefficient of the laser power into the optical ring-down cavity. The drive current/voltage of the semiconductor laser is modulated by a square-wave function output by a function generation card. Thus the laser beam is suddenly switched off at the negative step of the square-wave signal periodically. Immediately after switching off the laser beam, an exponential decay signal of the ring-down cavity is measured by a photo detector and used to determine the decay time of the cavity and the reflectivity of highly reflective mirrors. | 10-01-2009 |
20120154815 | APPARATUS AND METHOD FOR MEASURING REFLECTANCE OF OPTICAL LASER COMPONENTS - Apparatus and methods for measuring reflectance of optical laser components are disclosed. In one embodiment, when the reflectance of the test optical laser component is higher than 98%, a cavity ring-down (CRD) technique based configuration is employed to measure the reflectance of the test optical laser component. On the other hand, when the reflectance of the test optical laser component is lower than 98% or there is no measurable CRD signal, by removing the output cavity mirror in the CRD apparatus, a photometric configuration is formed to measure the reflectance. The switching between the two techniques can be achieved by removing or inserting the output cavity mirror of the ring-down cavity in the CRD apparatus. | 06-21-2012 |
Cheng Li, Chengdu CN
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20120075984 | METHOD AND APPARATUS FOR ESTIMATING FAR-END CROSSTALK CHANNEL - The method is used for estimating a Far-End Crosstalk channel imposed by a first line onto a second line in a two-line pair scenario, and includes: activating a first line independently, and obtaining a line noise of the first line as a first line noise; activating the first line and a second line, and obtaining a line noise of the first line as a second line noise; and determining a Far-End Crosstalk channel imposed by the second line onto the first line to be: (the second line noise−the first line noise)/a transmit power spectral density of the second line, where the transmit power spectral density of the second line is known. | 03-29-2012 |
20120151305 | FILTERING METHOD, SYSTEM AND EQUIPMENT - A filtering method, system, and equipment applied in digital communication technologies are disclosed in the embodiments of the present invention. The filtering method of the present embodiments includes: acquiring filtering coefficients of a part of all subcarriers according to data transmission errors; acquiring filtering coefficients of remaining subcarriers through an interpolation algorithm according to the filtering coefficients of the part of subcarriers; and finally, filtering the data corresponding to the multiple subcarriers according to the filtering coefficients of the part of subcarriers and the filtering coefficients of the remaining subcarriers. The part of subcarriers may be selected at a regular interval, or may be subcarriers which are located at a motion value away from the part of subcarriers selected in the previous update of the filtering coefficients. The method of the present embodiments reduces the amount of operation and hardware expenditure, and saves the cost. | 06-14-2012 |
20120237017 | METHOD, DEVICE AND SYSTEM FOR EXTENDING CHANNELS - The present invention provides a method, a device and a system for extending channels, and belongs to the field of communications technologies. The method includes: generating a non-cascade extended channel by using a first channel and a second channel; and generating a first-level cascade extended channel by using the non-cascade extended channel and a third channel, where the first channel and the second channel are both twisted-pair channels, and the third channel is a twisted-pair channel or another non-cascade extended channel. The device includes a first transformer and a second transformer. The system includes a first device and a second device. | 09-20-2012 |
20130235915 | METHOD AND APPARATUS FOR GROUPING LINE PAIRS, AND SYSTEM - Embodiments of the present invention relate to the field of communications and disclose a method and an apparatus for grouping line pairs, and a system, to solve a problem that obtaining a crosstalk cancellation coefficient matrix through channel training imposes a very high requirement on a system capability such as a computing capability and a storage capability and even affects user experience due to the relatively large number of line pairs in a large scale Vectored-DSL system. A technical solution provided in the present invention includes: acquiring crosstalk impact data between line pairs in a vectored-digital subscriber line Vectored-DSL system; and grouping line pairs, between which a crosstalk impact cannot be ignored, into one vector group according to a set threshold and the crosstalk impact data between the line pairs. The method and apparatus provided in the embodiments of the present invention are applicable to a large scale Vectored-DSL. | 09-12-2013 |
20140079105 | VECTORED-DSL METHOD AND SYSTEM, BOARD, AND DSLAM DEVICE - A vectored-DSL method and system and a board relate to the field of digital subscriber line DSL data processing, so as to increase user capacity of a vectored-DSL system. The vectored-DSL method includes: receiving, by at least one board, and pre-processing user data of the board; transmitting, by the board, the user data of the board to an auxiliary vector processor on the board to perform internal vectorization processing, so as to obtain internally processed data; transmitting, by the board, the user data thereof to a centralized vector processor to perform external vectorization processing, so as to obtain externally processed data; and receiving, by the board, the externally processed data of the board, and post-processing the externally processed data and the internally processed data. | 03-20-2014 |
20140140187 | METHOD, APPARATUS AND SYSTEM FOR SUPPORTING NON-VECTOR LINE - Embodiments of the present invention provide a method, an apparatus, and a system for supporting a non-vector line. The method includes: selecting n non-vector lines T | 05-22-2014 |
Chuwu Li, Chengdu CN
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20150216590 | DEVICE FOR MAPPING AND ABLATING RENAL NERVES DISTRIBUTED ON THE RENAL ARTERY - A device for mapping and ablating the renal nerves distributed on the renal artery is provided, said device comprising a guide catheter ( | 08-06-2015 |
Daohai Li, Chengdu CN
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20130160345 | FIREARM SIGHT MOUNT - A sight base is configured to receive and secure a sighting device and is coupled to a base by a pin running in each of the grooves and rotatable about the pins between an aligned position with the base extending between the parallel walls and the optical device aligned with the sighting axis, and a deployed position rotated away from the aligned position. A detent releasably retains the sight base in the aligned position. A clamp member is carried on the lower extent of the base, and releasably engages the rail with selectively movable to tighten and secure the clamp and base to the rail. A lever is coupled to the base and to the clamp member, and has a camming surface configured to move the movable portion of the clamp into and out of engagement with the rail in response to actuation of the lever. The camming surface of the lever bears on a resilient surface carried by the base. | 06-27-2013 |
Daping Li, Chengdu CN
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20110269169 | PSEUDOMONAS ALCALIPHILA MBR AND ITS APPLICATION IN BIOREDUCTION AND BIOSORPTION - The present invention relates to microbiology technology field. More particularly, it relates to | 11-03-2011 |
Deji Li, Chengdu CN
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20130078037 | DEBRIS FLOW DRAINAGE CANAL BASED ON CASCADE ANTISCOUR NOTCHED SILL GROUP AND APPLICATION THEREOF - A system of debris-flow drainage canal with cascaded sills is provided, which allows a high-efficient and low-cost realization of debris flow drainage and scour prevention. The canal contains two converging walls and a series of scour prevention sills, which are laid between the two converging walls. The sills are embedded to a certain depth and are evenly spaced and symmetrical to the centre line of the canal to form a cascaded structure for scour prevention. The drainage canal's width is 2 times wider than the sill's horizontal length along the cross-section. Compared with the prior art, this system can drain off a wide variety of flows from debris flow to flood and prevent debris-flow siltation even on a gentle slope. This system has a much higher stability and longer life of service. Moreover, this system can maintain the aquatic habitat in gullies and contribute to ecological restoration. | 03-28-2013 |
Dejun Li, Chengdu CN
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20150263770 | Method for Measuring Co-Channel Signal Interference, and Receiver - Embodiments of the present invention provide a method for measuring co-channel signal interference, and a receiver, where the method includes precisely obtaining, by measuring temperature and by using a stored noise figure, a signal to noise ratio of a low power signal in a case in which there is no co-channel signal interference; obtaining, by controlling a transmit power, at least one group of receive powers and signal to noise ratios of the receiver, to obtain a signal to noise ratio of the low power signal during actual operation; and calculating an interference power according to a difference between the signal to noise ratio of the low power signal in a case in which there is no co-channel interference and the signal to noise ratio of the low power signal during actual operation. | 09-17-2015 |
Ding Li, Chengdu CN
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20110202817 | NODE INFORMATION STORAGE METHOD AND SYSTEM FOR A LOW-DENSITY PARITY-CHECK DECODER - A receiver to receive a signal associated with a low-density parity-check (LDPC) code. The receiver includes a memory device, an address generator, and an LDPC decoder. The LDPC decoder includes a row designator and a position designator. The memory device stores data related to an LDPC decoding process. The address generator generates an access address to the stored data. The LDPC decoder performs the LDPC decoding process. The row designator designates a row from a parity-check matrix as a parent row and designates a plurality of corresponding rows from the parity-check matrix as child rows. The position designator designates an original position order of each parent non-zero element of 10 the parent row according to an actual position order of each parent non-zero element in the parent row. The actual position order includes a numerical order of the parent non-zero elements. | 08-18-2011 |
Dongchuan Li, Chengdu CN
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20140293794 | TOKEN BUCKET-BASED TRAFFIC LIMITING METHOD AND APPARATUS - The embodiments of the present invention disclose a token bucket-based traffic limiting method, including: when a packet is received, triggering a filling operation of filling each token bucket in a token bucket set under a scheduling node corresponding to the packet, where the token bucket set includes at least two token buckets; determining the number of tokens filled in each token bucket in the token bucket set according to a moment when the packet is received and a timestamp shared by the token bucket set; and if the number of tokens in a token bucket corresponding to the packet exceeds a length of the packet, allowing the packet to pass through the scheduling node and removing the number of tokens, corresponding to the length of the packet, from the token bucket corresponding to the packet. | 10-02-2014 |
20140376564 | METHOD AND APPARATUS FOR IMPLEMENTING ROUND ROBIN SCHEDULING - A method and an apparatus for implementing round robin scheduling are provided. The method includes: acquiring, from a queue, original location information of elements in the queue; performing location mapping processing on the original location information of the elements in the queue based on a set algorithm to obtain mapped location information of the elements in the queue, where the set algorithm or parameters used by the set algorithm change according to a set rule during each time of round robin scheduling; and starting from an element corresponding to a set initial location, performing round robin scheduling according to mapped queue sequences corresponding to the mapped location information of the elements. The method and the apparatus for implementing round robin scheduling can reduce the cost of storage devices and can ensure a balance in scheduling of elements in a service queue. | 12-25-2014 |
Dongming Li, Chengdu CN
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20140346954 | WHITE LED LIGHT EMITTING DEVICE DRIVEN DIRECTLY BY CONSTANT ALTERNATING CURRENT - The present invention discloses a white LED light emitting device driven directly by constant current in manner of being supplied with alternating current. N parallel branches, consisting of LED modules and constant current units which are in series connection with the LED modules, are connected to an output terminal of a rectification circuit, and by setting the current value, the turning-off voltage, and the turning-on voltage of the constant current unit of each branch, the periodic flickers generated due to changes in the voltage of the alternating current can be avoided. Because the current of each branch is constant, the changes in junction temperatures do not result in the current changing in LED, and the reliability is improved. Along with the increase of the number of the branches, the driving current waveform approximates a sine wave, and the power factor and the efficiency of the light emitting device are improved. | 11-27-2014 |
20160029454 | AC WHITE LED DEVICE - An Alternate Current (AC) white Light-Emitting Diode (LED) device is provided, which belongs to the technical field of white LED manufacturing. The problem to be solved by the present invention is to low-costly overcome a series of deficiencies such as the stroboflash of an AC driven LED, and the heat dissipation difficulty caused by an integrated packaging of multiple LEDs. A white LED unit includes an LED chip and a light emitting material that can emit light when being excited by the LED chip. The luminous lifetime of the light emitting material is 1˜100 ms. The LED chip only comprises one PN junction. The light emitted by the LED chip is mixed with the light emitted by the light emitting material to form white light. The white LED unit is driven by AC with a frequency not more than 100 Hz. The white LED device of prevent invention uses the single PN junction chip, rather than the prior integrated packaged AC multi-LED chip. | 01-28-2016 |
Dong-Ming Li, Chengdu CN
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20130015474 | WHITE LIGHT EMITTING DIODE (LED) LIGHTING DEVICEAANM Zhang; MingAACI ChengduAACO CNAAGP Zhang; Ming Chengdu CNAANM Zhao; KunAACI ChengduAACO CNAAGP Zhao; Kun Chengdu CNAANM Li; Dong-mingAACI ChengduAACO CNAAGP Li; Dong-ming Chengdu CN - An alternating current (AC) white LED lighting device and a method for manufacturing the same are provided. The AC white LED lighting device consists of blue, violet or ultraviolet LED chips, blue afterglow luminescence materials A and yellow luminescence materials B. Wherein the weight ratio of the blue afterglow luminescence materials A to the yellow luminescence materials B is 10-70 wt %:30-90 wt %. Because of using afterglow luminescence materials, the light will be sustained when an excitation light source disappears, which can eliminate the influence of LED chips light output variation due to the AC fluctuation on the lighting device. And the problem of the heating of the chips also can be overcome. At the same time, the influence of temperature quenching effect and direction change of the AC current on the AC white LED lighting device is eliminated. | 01-17-2013 |
20130119410 | WHITE LIGHT EMITTING DIODE (LED) LIGHTING DEVICE DRIVEN BY PULSE CURRENT - A white LED lighting device driven by a pulse current is provided, which consists of blue, violet or ultraviolet LED chips, blue afterglow luminescence materials A and yellow luminescence materials B. Wherein the weight ratio of the blue afterglow luminescence materials A to the yellow luminescence materials B is 10-70 wt %:30-90 wt %. The white LED lighting device drives the LED chips with a pulse current having a frequency of not less than 50 Hz. Because of using the afterglow luminescence materials, the light can be sustained when an excitation light source disappears, thereby eliminating the influence of LED light output fluctuation caused by current variation on the illumination. At the same time, the pulse current can keep the LED chips being at an intermittent work state, so as to overcome the problem of chip heating. | 05-16-2013 |
20140131746 | WHITE LIGHT EMITTING DIODE (LED) LIGHTING DEVICE DRIVEN BY PULSE CURRENT - A white LED lighting device driven by a pulse current is provided, which consists of blue, violet or ultraviolet LED chips, blue afterglow luminescence materials A and yellow luminescence materials B. Wherein the weight ratio of the blue afterglow luminescence materials A to the yellow luminescence materials B is 10-70 wt %: 30-90 wt %. The white LED lighting device drives the LED chips with a pulse current having a frequency of not less than 50 Hz. Because of using the afterglow luminescence materials, the light can be sustained when an excitation light source disappears, thereby eliminating the influence of LED light output fluctuation caused by current variation on the illumination. At the same time, the pulse current can keep the LED chips being at an intermittent work state, so as to overcome the problem of chip heating. | 05-15-2014 |
20140132177 | WHITE LIGHT EMITTING DIODE (LED) LIGHTING DEVICE DRIVEN BY PULSE CURRENT - A white LED lighting device driven by a pulse current is provided, which consists of blue, violet or ultraviolet LED chips, blue afterglow luminescence materials A and yellow luminescence materials B. Wherein the weight ratio of the blue afterglow luminescence materials A to the yellow luminescence materials B is 10-70 wt %:30-90 wt %. The white LED lighting device drives the LED chips with a pulse current having a frequency of not less than 50 Hz. Because of using the afterglow luminescence materials, the light can be sustained when an excitation light source disappears, thereby eliminating the influence of LED light output fluctuation caused by current variation on the illumination. At the same time, the pulse current can keep the LED chips being at an intermittent work state, so as to overcome the problem of chip heating. | 05-15-2014 |
20140134764 | WHITE LIGHT EMITTING DIODE (LED) LIGHTING DEVICE DRIVEN BY PULSE CURRENT - A white LED lighting device driven by a pulse current is provided, which consists of blue, violet or ultraviolet LED chips, blue afterglow luminescence materials A and yellow luminescence materials B. Wherein the weight ratio of the blue afterglow luminescence materials A to the yellow luminescence materials B is 10-70 wt %:30-90 wt %. The white LED lighting device drives the LED chips with a pulse current having a frequency of not less than 50 Hz. Because of using the afterglow luminescence materials, the light can be sustained when an excitation light source disappears, thereby eliminating the influence of LED light output fluctuation caused by current variation on the illumination. At the same time, the pulse current can keep the LED chips being at an intermittent work state, so as to overcome the problem of chip heating. | 05-15-2014 |
Fubin Li, Chengdu CN
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20140059926 | GREENING ROLL - A greening roll includes water-temperature-light controlling part, root growing part, water/root regulating part and seed-stacking part which is located in the water-temperature-light controlling part. The water-temperature-light controlling part is located on the top surface of the greening roll, the water/root regulating part is located on the lower surface of the greening roll, the root growing part is located in the cavity composed by the water-temperature-light controlling part and the water/root regulating part, and the seed-stacking part is located in the cavity of the water-temperature-light controlling part. The water-temperature-light controlling part further includes top-located irradiation reflecting part, temperature-water regulating part, light-preventing part and seed-stacking cavity. The present invention is suitable for the engineering protection and greening of engineering slopes, spoil and slag yards, embankments and the like, the water and soil conservation and greening of sandy lands, abandoned lands, borrow pits, slurry pond, mining fields, industrial and mining abandoned lands and the like, and the engineering thermal insulation and greening of building roofs and the like. | 03-06-2014 |
Guangming Li, Chengdu CN
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20120142871 | POLYURETHANE-MODIFIED ACRYLIC RESIN AND PREPARING METHOD THEREOF - A polyurethane-modified acrylic resin and a preparing method thereof are disclosed. The polyurethane-modified acrylic resin is prepared through the following steps: preparing a monomer with double bond and urethane group by means of a reaction of isocyanate, hydroxylalkyl acrylate and aliphatic alcohol, and then copolymerizing the monomer with acrylate monomer. The polyurethane-modified acrylic resin of the present invention contains a urethane structure, has the features of both polyurethane and acrylic resin, and is soluble in alcohol or ester solvent. An ink, a laminating adhesive, a metal surface-protective coating and a gloss varnish for woodware produced from the resin as well as the preparing methods thereof are also disclosed. | 06-07-2012 |
Guiying Li, Chengdu CN
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20130223040 | Standard Capacitance Box Output Device - The invention discloses a capacitance standard box output device. The number of standard capacitors is reduced, so that the structure of a changeover switch is simplified, and the number of connection wires is reduced, so as to improve the shield effect and reduce uncertainty. The technical proposal of the invention is as follows: The capacitance standard box output device comprises a changeover switch and precision capacitors, wherein the changeover switch is placed in a shield box; the shield box has an input terminal and an output terminal; the input terminal is connected to the changeover switch and the precision capacitor; the output is connected to the changeover switch and outputs the capacitance selected by the changeover switch; the selected capacitance is a product of a unit capacitance and an arbitrary integer value between 0 and 10; the number of the precision capacitors is from 4 to 9, and at least one capacitor is of a unit capacitance. The invention is mainly used for the capacitance standard box to output more accurate capacitance. | 08-29-2013 |
Gui Zhou Li, Chengdu CN
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20160019261 | METHODS, SYSTEMS, AND APPARATUS FOR SEARCH OF ELECTRONIC INFORMATION ATTACHMENTS - Methods, systems, and computer program products for generating a search of attachments are described. A search request based on a business template is obtained, the business template comprising a node containing an identity of an entity to which the attachment is attached and an attachment sub-node. A search request based on an attachment template is obtained, the attachment template comprising a root node referring to the attachment sub-node of the business template and a node containing an identity of the attachment. A search is performed based on the business template and the attachment template. | 01-21-2016 |
Guo-Ying Li, Chengdu CN
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20090265861 | METHOD FOR MANUFACTURING PROTEIN FILLING AGENT FOR LEATHER UTILIZING ANIMAL HAIRS - Method for manufacturing a protein filling agent for leather utilizing animal hairs. The method includes pre-treating the animal hairs to obtain pre-treated animal hairs, wherein the pre-treating comprises soaking the animal hairs in an inorganic acid solution and a reducing agent solution. Next, the pre-treated hairs are hydrolyzed in an alkaline compound to obtain a viscous liquid and then, neutralized and dried to obtain the protein filling agent for leather. | 10-29-2009 |
Hai Li, Chengdu CN
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20140173143 | Data Processing Method and Apparatus - The present invention relates to the field of communications technologies and discloses a data processing method and apparatus to obtain a DPD non-linear distortion compensation coefficient under a QPSK mode. The embodiments of the present invention receive a first data flow, and perform interpolation into the first data flow to obtain a second data flow; receive a third data flow, and calculate a data flow signal quality difference between the third data flow and the second data flow; and obtain a DPD non-linear distortion compensation coefficient according to the data flow signal quality difference and the third data flow or the second data flow. The embodiments of the present invention are applicable to the scenarios of obtaining a DPD non-linear distortion compensation coefficient in QPSK mode. | 06-19-2014 |
20150270913 | Detection Apparatus and Detection Method for Received Signal Strength Indicator - Embodiments of the present invention provide a detection method including receiving a modulated signal data stream from a microwave transmit end, performing amplification on the modulated signal data stream according to an amplification control signal, where the amplification control signal is used to indicate the number of amplification times for the amplification performed on the modulated signal data stream, performing analog-to-digital conversion on the amplified modulated signal data stream to obtain a first digital signal data stream; filtering the first digital signal data stream, performing power detection on the first digital signal data stream to obtain a first average power value, performing power detection on a filtered first digital signal data stream to obtain a second average power value, obtaining the amplification control signal according to the first average power value, and obtaining an RSSI value by calculation according to the amplification control signal and the second average power value. | 09-24-2015 |
Heng Li, Chengdu CN
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20140103416 | SEMICONDUCTOR DEVICE HAVING ESD PROTECTION STRUCTURE AND ASSOCIATED METHOD FOR MANUFACTURING - A semiconductor device having an ESD protection structure and a method for forming the semiconductor device. The semiconductor device further includes a semiconductor transistor formed in an active cell area of a substrate. The ESD protection structure is formed atop a termination area of the substrate and is of solid closed shape. The ESD protection structure includes a central doped zone of a first conductivity type and a plurality of second-conductivity-type doped zones and first-conductivity-type doped zones alternately disposed surrounding the central doped zone. The central doped zone occupies substantially the entire portion of the ESD protection structure that is overlapped by a gate metal pad, and is electrically coupled to the gate metal pad. The outmost first-conductivity-type doped zone is electrically coupled to a source metal. The ESD protection structure features a reduced resistance and an improved current uniformity and provides enhanced ESD protection to the transistor. | 04-17-2014 |
Hongxia Li, Chengdu CN
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20130149733 | ESTABLISHMENT OF RHESUS MONKEY MODEL OF AUTOIMMUNITY TYPE 1 DIABETES - Use of low dose streptozocin in the preparation of an animal model for screening drugs for treatment of antoimmune type 1 diabetes is disclosed, in which streptozocin is administrated intravenously at a dose of 15-30 mg/kg per time for 5 days and administrated again on the 7 | 06-13-2013 |
Hongxing Li, Chengdu CN
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20110035801 | METHOD, NETWORK DEVICE, AND NETWORK SYSTEM FOR DEFENDING DISTRIBUTED DENIAL OF SERVICE ATTACK - A method for defending a distributed denial of service (“DDoS”) attack includes analyzing at least one of a running status of a server or a network data stream flowing to the server at the server side to detect whether a DDoS attack occurs on the server and notifying a data stream cleaner that the data stream cleaner needs to clean the network data stream flowing to the server, if the DDoS attack occurs on the server. | 02-10-2011 |
Jiangkun Li, Chengdu CN
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20130335045 | POWER CONVERTER WITH THE FUNCTION OF DIGITAL ERROR CORRECTION - This invention relates to the output voltage regulator of step-down switching power converters. This invention provides regulator with digitally adjusted output voltage. It solves the problem of low regulation due to low error amplifier (EA) gain. This invention is a power converter with the function of Digitally Error Correction, consisting of Logic Control, EA, PWM comparator, Driver, power devices and passive components. It features Digital Calibration Circuit whose input terminal is connected to the output voltage and output terminal is connected to the error signal. When the output voltage exceeds the tolerance range, this Digital Calibration Circuit will increase or decrease the error signal step by step, keeping the output voltage in the tolerance range. The Digital Calibration Circuit of this invention can be applied not only in nanometer scale process, but also in traditional process. For those power converters in traditional process, it is also quite promising in applications. | 12-19-2013 |
Jinchuan Li, Chengdu CN
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20090181448 | PERFUSION TYPE VASCULAR TISSUE BIOREACTOR WITH ROTARY AND STRETCHING FUNCTIONS - The present invention in one aspect provides a bioreactor for vascular construct that comprises a pulse-generating device with simple structure and reliable and stable pulse-generating operation. In another aspect, the present invention provides bioreactor for vascular construct that implements rotation of vascular construct and culture chamber, axial stretching of vascular construct, and duplicating pulsatile flow. | 07-16-2009 |
Jingchun Li, Chengdu CN
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20130137235 | MOS TRANSISTOR USING STRESS CONCENTRATION EFFECT FOR ENHANCING STRESS IN CHANNEL AREA - A MOS transistor ( | 05-30-2013 |
Ke Li, Chengdu CN
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20120300776 | METHOD FOR CREATING VIRTUAL LINK, COMMUNICATION NETWORK ELEMENT, AND ETHERNET NETWORK SYSTEM - Embodiments of the present invention provide a method for creating a virtual link, a communication network element, and an Ethernet network system. The method includes the following: a first communication network element receives a communication request message sent by a second communication network element; the first communication network element allocates a first virtual MAC address and a second virtual MAC address for the virtual link between the first communication network element and the second communication network element; the first communication network element sends a response message in response to the communication request message to the second communication network element, where the response message carries the first virtual MAC address and the second virtual MAC address. Using the technical solutions provided in the embodiments of the present invention, two communication network elements on the Ethernet are capable of performing communication using a fibre channel on the Ethernet. | 11-29-2012 |
20160019261 | METHODS, SYSTEMS, AND APPARATUS FOR SEARCH OF ELECTRONIC INFORMATION ATTACHMENTS - Methods, systems, and computer program products for generating a search of attachments are described. A search request based on a business template is obtained, the business template comprising a node containing an identity of an entity to which the attachment is attached and an attachment sub-node. A search request based on an attachment template is obtained, the attachment template comprising a root node referring to the attachment sub-node of the business template and a node containing an identity of the attachment. A search is performed based on the business template and the attachment template. | 01-21-2016 |
Kun Li, Chengdu CN
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20110164877 | METHOD, DEVICE, AND SYSTEM FOR TRANSMITTING CONSTANT RATE DATA STREAM - In the field of optical network communication technologies, a method, a device, and a system for transmitting a constant rate data stream are provided. The method for transmitting the constant rate data stream by the first network device includes: receiving a constant rate data stream; calculating an input rate of the constant rate data stream or a rate difference between the input rate and a standard rate of the constant rate data stream in each cycle of a reference clock; encapsulating the constant rate data stream into a Gigabit-Passive Optical Network (GPON) Encapsulation Method (GEM) frame by using a bit as a minimum encapsulation unit; and encapsulating the GEM frame into a GPON Transmission Convergence Layer (GTC) frame, and sending the GTC frame to the second network device through a GPON network. Therefore, the technical solutions may be widely applied to the GPON network. | 07-07-2011 |
20110200323 | INFORMATION TRANSFER AND RECEIVING METHOD, SYSTEM, AND DEVICE - The information transfer method includes: determining an indicator of a start bit in a protection time slot or a preamble time slot of a laser, and establishing a communication channel according to the indicator of the start bit; inserting Operation Administration and Maintenance (OAM) information of a Long Reach-Passive Optical Network (LR-PON) device into an upstream frame sent to an Optical Line Terminal (OLT) device by the LR-PON device at a position indicated by the indicator of the start bit, and transporting the upstream frame to the OLT device through the communication channel. Therefore, OAM functions of the LR-PON device are extended, so that the OAM information can be transported by the LR-PON device independently, and OAM characteristics of the LR-PON device are enhanced. For example, PON protection is better supported, and the speed and success ratio of protection switching of a PON system are increased. | 08-18-2011 |
20120121258 | METHOD, APPARATUS, AND SYSTEM FOR TRANSMITTING INFORMATION IN PASSIVE OPTICAL NETWORK - A method, an apparatus, and a system for transmitting information in a passive optical network are provided. The method mainly includes: obtaining OAM information that an RE device needs to report to an OLT device, performing modulation processing, according to the OAM information, on a downlink optical signal sent by the OLT device, and returning the downlink optical signal after the modulation processing to the OLT device; or, obtaining OAM information that an OLT device needs to deliver to an RE device, performing modulation processing, according to the OAM information, on a downlink optical signal sent by the OLT device to the RE device, and sending the downlink optical signal after the modulation processing to the RE device. | 05-17-2012 |
20120224858 | METHOD AND APPARATUS FOR TRANSMITTING MULTIPLE SERVICES - A method and an apparatus for transmitting multiple services are provided, and which belong to the field of optical transmission technologies. The method includes: receiving bandwidth information of TCONTs of all nodes; dividing a payload area of a GTH frame into a preset number n of arrays, where each array includes a specified number of timeslots and the interval between any two neighboring timeslots in each array is n and n is a natural number; calculating, according to the bandwidth information of the TCONTs of all the nodes, timeslot positions of arrays occupied by the TCONTs of each node in the payload area; interleaving, according to the timeslot positions of the arrays occupied by the TCONTs of a local node in the payload area, the TCONTs of the local node into corresponding timeslots starting from a specified frame, obtaining a GTH frame, and transmitting the GTH frame. | 09-06-2012 |
20120263139 | MICROWAVE ACCESS METHOD AND MULTI-SERVICE TRANSPORT DEVICE - The present invention discloses a microwave access method and a multi-service transport device. The present invention includes: detecting whether a performance parameter and/or a status parameter of a microwave air interface changes; if the performance parameter and/or the status parameter of the microwave air interface changes, generating a dynamic bandwidth request according to the changed performance parameter and/or the changed status parameter, and sending the dynamic bandwidth request to a main control unit of a multi-service transport network; receiving dynamic bandwidth allocation information sent by the main control unit according to the dynamic bandwidth request; and receiving an uplink microwave signal transmitted by the microwave air interface, performing uplink service processing on the uplink microwave signal to obtain uplink service data, and transporting the uplink service data to the multi-service transport network according to the dynamic bandwidth allocation information. | 10-18-2012 |
20130183041 | SIGNAL RECEIVING METHOD BASED ON MICROWAVE PHOTONICS TECHNOLOGIES - A microwave photonics based signal receiving device includes a signal generation module, a first Mach-Zehnder modulator, a dispersion module, a second Mach-Zehnder modulator, and a signal conversion module. The signal receiving device simplifies a structure of the signal receiving device by adopting quadrature demodulation. The signal receiving device demodulates a high-order modulation signal and flexibly adjusts a microwave carrier frequency. | 07-18-2013 |
20140010547 | ACTIVE OPTICAL ANTENNA, MICROWAVE TRANSMITTING SYSTEM AND INFORMATION SENDING METHOD - Embodiments of the present disclosure disclose an active optical antenna, a microwave transmitting system and an information sending method. The active optical antenna includes: a substrate; a ground disposed at the bottom of the substrate; a power supply grid and several antenna units that are disposed at the top of the substrate, and photodetector tubes that are disposed in the substrate and located between the antenna units and the ground, where the power supply grid supplies power to the photodetector tubes, the number of the photodetector tubes is equal to the number of the antenna units, and output ends of the photodetector tubes are coupled with the antenna units to output radio frequency signals; and optical waveguides which are disposed in the substrate and connected to the photodetector tubes. | 01-09-2014 |
20140177757 | METHOD, DEVICE, AND SYSTEM FOR IMPLEMENTING MICROWAVE MULTIPLE-INPUT MULTIPLE-OUTPUT - A method, device and system for implementing microwave multiple-input multiple-output, relate to the field of wireless communications. The device includes a transmit channel correction module including a transmission energy distributor and a transmission coupler; the transmission energy distributor decomposes, according to a first energy distribution parameter, each channel of transmitted signals among N channels of transmitted signals into channels of transmitted sub-signals, where the number of the channels of transmitted sub-signals is the same as the number of transmit antennas, the number of transmit antennas is N, and N is a natural number greater than 1; and the transmission coupler performs phase processing on each channel of transmitted sub-signals according to a first phase parameter, selects one channel of phase-processed transmitted sub-signals from each of the N channels of transmitted signals, and combines them to obtain N channels of output signals. | 06-26-2014 |
Kunpeng Li, Chengdu CN
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20160065847 | Image Collecting Method and Apparatus - An image collecting method and apparatus are provided, where the image collecting method includes enabling an image collecting unit in an electronic device, when it is identified that after a first specific motion, a gesture of the electronic device changes to a specific device gesture; monitoring whether the electronic device performs a second specific motion in the specific device gesture; and when it is detected that the electronic device performs the second specific motion in the specific device gesture, controlling the image collecting unit to obtain an at least first image by means of collection within motion time in which the electronic device performs the second specific motion. | 03-03-2016 |
Linrui Li, Chengdu CN
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20160103049 | ROCK SPECIMEN AND METHOD FOR TESTING PURE SHEAR OF THE SAME - A rock specimen, including a rock body. The rock body includes: an upper part, an upper end face, a first circular groove, a first cylinder, a first circular body, a lower part, a lower end face, a second circular groove, a second cylinder, and a second circular body. The first circular groove is disposed on the upper end face of the rock body and has a circle center coinciding with a center of the upper end face. A method for testing pure shear of the rock specimen, includes: 1) disposing the rock specimen on a test bench of a rock mechanics testing system, allowing the end face of the second circular body to contact the test bench; and 2) operating the rock mechanics testing system, loading a pressure on the rock specimen via the end face of the first cylinder and the end face of the second circular body. | 04-14-2016 |
Long Li, Chengdu CN
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20090327926 | METHOD AND SYSTEM FOR IMPLEMENTING SOFTWARE CUSTOMIZATION MODULE - A method for implementing a software customization module is provided. The method may include receiving a function module customization request, configuring a Graphic User Interface (GUI) view and an event processing class based on the function module customization request, modifying an interface configuration file based on the function module customization request, and determining an implementation class of the event processing class based on the modified interface configuration file. A system for fulfilling software customization modules is also provided herein, wherein function modules of the system may be added or deleted without modifying the codes. | 12-31-2009 |
Lu Li, Chengdu CN
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20110221351 | Active matrix organic electroluminescence device and a method of manufacture - The present invention discloses an active matrix organic electroluminescence device comprising a thin-film transistor, an organic electroluminescence device, and an interlayer deposited between the thin-film transistor and the organic electroluminescence device, wherein the interlayer is made of cationic ultraviolet-curing adhesive comprising epoxy resin or modified epoxy resin, diluting agent, cationic photo initiator. The interlayer solves poor adhesiveness between the driving circuit and the organic electroluminescence device, and improves the moisture and oxygen proof ability. The preparation method is simple, effective, and able to lower the cost and difficulty, and greatly improve the yield rate. | 09-15-2011 |
Maoliang Li, Chengdu CN
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20130211097 | DIPHOSPHONATE COMPOUND AND A METHOD FOR PREPARING THE SAME AND AN APPLICATION OF THE SAME - The present disclosure relates to a new diphosphonate compound, and the method to prepare the above new diphosphonate compound. The new diphosphonate compound exhibits an activity in inhibiting osteoclast equivalent to alendronate sodium, and a higher activity in affecting the proliferation of osteoplast than the positive control compounds, but the positive control exhibits a weaker effect on osteoblast proliferation. In experimental examples, an administration schedule for the diphosphonate compound is provided. | 08-15-2013 |
Mingchun Li, Chengdu CN
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20150189631 | RESOURCE CONFIGURATION METHOD, RESOURCE DELETION METHOD AND DEVICE - The present invention provides a resource configuration method, a resource deletion method and a device. The resource configuration method includes: receiving a group establishment request carrying a group identifier of a group to be established; acquiring, according to the group identifier of the group to be established, a base station list and a tracking area list of the group to be established; the base station list includes a base station in which a registered subscription user equipment of the group to be established locates at present, the tracking area list includes a tracking area in which the registered subscription user equipment of the group to be established locates at present; if the base station list is not empty, configuring, according to the base station list and the tracking area list, a resource for the group to be established. | 07-02-2015 |
Mingqi Li, Chengdu CN
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20130211097 | DIPHOSPHONATE COMPOUND AND A METHOD FOR PREPARING THE SAME AND AN APPLICATION OF THE SAME - The present disclosure relates to a new diphosphonate compound, and the method to prepare the above new diphosphonate compound. The new diphosphonate compound exhibits an activity in inhibiting osteoclast equivalent to alendronate sodium, and a higher activity in affecting the proliferation of osteoplast than the positive control compounds, but the positive control exhibits a weaker effect on osteoblast proliferation. In experimental examples, an administration schedule for the diphosphonate compound is provided. | 08-15-2013 |
Peisong Li, Chengdu CN
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20090112735 | CONTENT SERVICE MARKETPLACE SOLUTIONS - Techniques for providing an integrated content marketplace for software content services are described herein. According to one embodiment, multiple categories of application content are displayed, each category including content items to be browsed and each of the content items selectable to be deployed in an enterprise application. In response to a search request for searching a content item, the categories are searched based on one or more keywords and a search result is displayed. In response to a demand from a user, a request form is presented to allow a user to specify one or more requirements of a specific content item not available from the categories, where the specific content item is to be developed specifically tailored to a specific need of the user. Other methods and apparatuses are also described. | 04-30-2009 |
Quan Li, Chengdu CN
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20150293856 | Disk Array Flushing Method and Disk Array Flushing Apparatus - A disk array flushing method and a disk array flushing apparatus. The method includes acquiring a sequence, which is according to physical addresses of logical units, of the logical units in a same redundant array of independent disks (RAID) group in a disk array, and sequentially flushing, according to the sequence of the logical units, concurrent flushing input-outputs (IOs) of the RAID group to the logical units in the RAID group. According to the disk array flushing method and the disk array flushing apparatus, by uniformly scheduling logical units in a single RAID group and performing flushing according to a sequence of physical addresses, it takes less time for a magnetic arm to jump back and forth for addressing, and influences between RAID groups are prevented by means of independent control over the RAID groups, thereby improving flushing efficiency of a disk array, and increasing throughput of the disk array. | 10-15-2015 |
Shaocai Li, Chengdu CN
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20140059926 | GREENING ROLL - A greening roll includes water-temperature-light controlling part, root growing part, water/root regulating part and seed-stacking part which is located in the water-temperature-light controlling part. The water-temperature-light controlling part is located on the top surface of the greening roll, the water/root regulating part is located on the lower surface of the greening roll, the root growing part is located in the cavity composed by the water-temperature-light controlling part and the water/root regulating part, and the seed-stacking part is located in the cavity of the water-temperature-light controlling part. The water-temperature-light controlling part further includes top-located irradiation reflecting part, temperature-water regulating part, light-preventing part and seed-stacking cavity. The present invention is suitable for the engineering protection and greening of engineering slopes, spoil and slag yards, embankments and the like, the water and soil conservation and greening of sandy lands, abandoned lands, borrow pits, slurry pond, mining fields, industrial and mining abandoned lands and the like, and the engineering thermal insulation and greening of building roofs and the like. | 03-06-2014 |
Shichun Li, Chengdu CN
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20150218338 | Method for Producing Nanometer Lithopone from Electrolytic Zinc Acid Leaching Residue - Disclosed is a method for producing nanometer lithopone from electrolytic zinc acid leaching residue. The method comprises specific steps of: leaching, purifying, carrying out a metathetical reaction, washing, smashing and the like. Through these steps, zinc is selectively leached out by an ammonia-ammonium sulfate process; and iron and arsenic are removed by ammonium persulfate, heavy metal elements such as nickel, copper, lead, cadmium and the like are removed by sulfurization method and zinc powder replacement method; and a metathetical reaction is carried out to obtain an nZnS—BaSO | 08-06-2015 |
20150240327 | Method for Producing a High-purity Nanometer Zinc Oxide from Low-grade Zinc Oxide Ore by Ammonia Decarburization - Disclosed is a method for producing a nanometer zinc oxide from low-grade zinc oxide ore by ammonia decarburization. The method comprises: taking ammonia water-ammonium bicarbonate solution as a leaching agent; adding 0.3-0.5 kg sodium fluorosilicate to per cubic meter of the leaching agent; leaching low-grade zinc oxide ore with the leaching agent; and adding 50-60 kg slaked lime to per cubic meter of leached solution to carry out decarburization treatment. The obtained nanometer zinc oxide powder has purity of 99.7% or up, uniform particle size distribution (average particle size of 10-28 nm), specific surface area of 107 m | 08-27-2015 |
20150246822 | Method for Producing a High-purity Nanometer Zinc Oxide from Electrolytic Zinc Acid Leaching Residues by Ammonia Decarburization - Disclosed is a method for producing a high-purity nanometer zinc oxide from electrolytic zinc acid leaching residues by ammonia decarburization. The method comprises: adding 0.3-0.5 kg of sodium fluorosilicate to per cubic meter of ammonia water-ammonium bicarbonate solution when leaching, and then adding 30-60 kg of slaked lime to per cubic meter of a leached solution for carrying out decarburization and refining treatment. The present invention obtained nanometer zinc oxide powder has purity of 99.7% or up, uniform particle size distribution (average particle size of 10-30 nm), specific surface area of 105 m | 09-03-2015 |
20150252446 | Method for Producing a High-purity Nanometer Zinc Oxide from Steel Plant Smoke and Dust by Ammonia Decarburization - Disclosed is a method for producing a high-purity nanometer zinc oxide from steel plant smoke and dust by ammonia decarburization. The method comprises: leaching with an ammonia water-ammonium carbonate solution as a leaching agent, adding 0.3-0.5 kg of sodium fluorosilicate to per cubic meter of the leaching agent to obtain a leaching solution, then adding 50-60 kg slaked lime to per cubic meter of the leached solution to carry out decarburization with heating, and carrying out purification and impurity removal and then refining treatment. According to the method, the ammonia process is used for treating smoke and dust, and the existing ammonia process is adaptively improved, the leaching speed and the leaching rate of zinc in the smoke and dust are improved, and the zinc oxide with the purity of more than 99.7% can be obtained; the treatment method of the present invention is characterized by low energy consumption and high efficiency, the leaching agent can be recycled, and thoroughly solves the problem of zinc load of steel plant furnace smoke and dust, thereby meeting the requirement of the steel plant on purification of the harmful components comprising zinc and alkali metals and achieving good production circulation. | 09-10-2015 |
Shijie Li, Chengdu CN
Shu Li, Chengdu CN
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20130341100 | Modular cutting-teeth drill bit with controllable drilling specific pressure - A modular cutting-teeth drill bit with controllable drilling specific pressure comprises a module ( | 12-26-2013 |
20140202773 | Roller bit for rock breaking by rotary cutting - A roller bit for rock breaking by rotary cutting comprises: a bit body ( | 07-24-2014 |
Sicheng Li, Chengdu CN
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20110091420 | Injectable Sustained-Release Pharmaceutical Formulation and the Preparation Method Thereof - Disclosed are an injectable sustained-release pharmaceutical formulation and a process for preparing the same. In some embodiments, the formulation comprises an active ingredient in a therapeutically effective amount, an amphipathic molecule, an organic acid and/or a salt thereof which is hardly soluble in water, and an oily solvent. The injectable sustained-release pharmaceutical formulation provides a good sustained-release effect for various active ingredients, in particular peptides, proteins, nucleic acids and saccharides. | 04-21-2011 |
20130310310 | SITE-DIRECTED PEG-MODIFIED EXENDIN-4 ANALOGS AND USES THEREOF - Disclosed are PEG-modified Exendin-4 analogs and uses thereof. In particular, disclosed are PEG-modified Exendin-4 analogs as shown in formula (I), i.e., PEG-M-X-(Ex-4), or pharmaceutically acceptable salts thereof, as well as Exendin-4 analogs as shown in formula (II), i.e., [Aa | 11-21-2013 |
Taofeng Li, Chengdu CN
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20120326615 | CURRENT CONTROL CIRCUIT AND ASSOCIATED METHOD - A current control circuit and associated method are disclosed hereby. The current control circuit has a fly-wheel circuit, comprising an inductor, a rectifier and a load; a current sense circuit, detecting a load current, configured to generate a first current signal; a compensating circuit, generating a compensating signal; a control circuit, generating a control signal according to the first current signal and the compensating signal; a first switch, coupled to the fly-wheel circuit, turned ON and OFF according to the control signal. By the effect of the compensating signal, the drift error of the average load current is prohibited. | 12-27-2012 |
20130300385 | CHARGE-PUMP VOLTAGE DIVIDER AND ASSOCIATED CONTROL METHOD - The embodiments of the present invention disclose a charge-pump voltage divider and associated start-up method. The charge-pump voltage divider comprises a start-up circuit that can regulate an inrush current during start up. The start-up circuit comprises a switch, which operates in linear region state during start-up, and operates in switching state after the start-up completes. The charge-pump voltage divider may further comprise a load control switch configured to ensure the start-up is independent of a load current. | 11-14-2013 |
Tianmi Li, Chengdu CN
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20160055998 | High-safety Surge Protective Device - The invention relates to a high-safety surge protective device which comprises a casing, at least one overvoltage protection component inside the casing, a release unit used to separate the overvoltage protection component from the AC or DC circuit or the equipment, an arc suppressing apparatus used to suppress electric arc generated while separating the overvoltage protection component from the AC or DC circuit or the equipment, and a box, Wherein: the release unit comprises a compression spring, a metal dome, a slide and a soft conductor; the arc suppressing apparatus comprises an arc chute assembly, a first arc striking sheet, a second arc striking sheet, a turning block and a torsional spring. | 02-25-2016 |
Tiesheng Li, Chengdu CN
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20130153999 | TRENCH GATE MOSFET DEVICE - A trench gate MOSFET device has a drain region, a drift region, a trench gate having a gate electrode and a poly-silicon region, a super junction pillar juxtaposing the trench gate, a body region and a source region. By the interaction among the trench gate, the drift region and the super junction pillar, the break down voltage of the trench gate MOSFET device may be relatively high while the on-state resistance of the trench gate MOSFET device may be maintained relatively small. | 06-20-2013 |
Weizhi Li, Chengdu CN
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20110223771 | Wet metal-etching method and apparatus used for MEMS - The present invention provides a method of wet etching a silicon slice including a silicon substrate and a metal film layer thereon comprising steps of: performing lithographic process to the silicon slice forming a masked silicon slice comprising the silicon substrate and a partially masked metal film thereon; immersing the masked silicon slice into an etchant; rotating the masked silicon slice in the etchant; injecting high-purity nitrogen gas into the etchant for agitating the etchant; removing the masked silicon slice out of the etchant, upon completion of etching; and rinsing the masked silicon slice with deionized water. | 09-15-2011 |
Wenchang Li, Chengdu CN
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20090100304 | Hardware and Software Co-test Method for FPGA - A hardware and software co-test method for FPGA comprises the following steps of: setting up a HW/SW co-test system comprising a PC, a software part, HW/SW communication modules, a hardware accelerator for testing a DUT FPGA which is mapped with a configuration file of DUT; predefining a table of test vectors for FPGA by software part in PC; generating configuration files based on the tables of test vector for I/O module, CLB and routing matrix, and then sending the configuration file into DUT FPGA to configure the FPGA; testing DUT FPGA in terms of the tables of test vector for lo I/O module, CLB and routing matrix, and returning results to the software part; and comparing the test results with expected data in the software part, generating a test report, and during the above steps, the error cells in the FPGA are capable of being automatically positioned. | 04-16-2009 |
Xian Li, Chengdu CN
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20120206981 | METHOD AND DEVICE FOR WRITING DATA - Embodiments of the present invention provide a method and a device for writing data. The method includes: receiving a data block that is to be written in an EDRAM; obtaining, according to a status of a bank in the EDRAM, usable addresses corresponding to usable banks in the EDRAM; selecting an address from the usable addresses as a write-in address of the data block; and writing the data block in a bank corresponding to the write-in address. In the embodiments of the present invention, problems in the prior art that a conflict occurs when a data block is written in a bank and a conflict occurs when a data block is read from a bank can be avoided, and working efficiency of the EDRAM is improved. | 08-16-2012 |
Xianfeng Li, Chengdu CN
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20140173143 | Data Processing Method and Apparatus - The present invention relates to the field of communications technologies and discloses a data processing method and apparatus to obtain a DPD non-linear distortion compensation coefficient under a QPSK mode. The embodiments of the present invention receive a first data flow, and perform interpolation into the first data flow to obtain a second data flow; receive a third data flow, and calculate a data flow signal quality difference between the third data flow and the second data flow; and obtain a DPD non-linear distortion compensation coefficient according to the data flow signal quality difference and the third data flow or the second data flow. The embodiments of the present invention are applicable to the scenarios of obtaining a DPD non-linear distortion compensation coefficient in QPSK mode. | 06-19-2014 |
20140184327 | METHOD FOR IMPLEMENTING COMPENSATION FILTER AND APPARATUS FOR SIGNAL BANDWIDTH COMPENSATION - Embodiments of the present invention disclose a method for implementing a compensation filter and an apparatus for signal bandwidth compensation. The apparatus includes: a digital predistortion filtering unit, a compensation filter, a conversion unit, and a power amplifier; where the digital predistortion filtering unit receives an original signal, performs predistortion processing on the original signal; the compensation filter receives the predistortion signal, compensates for distortion caused during a process of transmitting the predistortion signal to the power amplifier, and outputs a compensated predistortion signal to the conversion unit; the conversion unit receives the compensated predistortion signal, converts the compensated predistortion signal into an analog signal, performs frequency mixing processing, and outputs a predistortion signal experiencing the frequency mixing to the power amplifier; the power amplifier receives the predistortion signal experiencing the frequency mixing, amplifies the predistortion signal experiencing the frequency mixing, and outputs an amplified signal. | 07-03-2014 |
Xiaobo Li, Chengdu CN
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20150142648 | Corporate Bill Self-service System with Blank Bill Vending and Temporary Bill Storage Functions - The invention solves present problems of insufficient flexibility and convenience and inefficiency in processing of corporate bill businesses, and provides a corporate bill self-service system with functions of blank bill selling and temporary bill storage, and the technical solution thereof can be summarized as follows: the corporate bill self-service system with functions of blank bill selling and temporary bill storage consists of a business self-service center platform and at least a front-end corporate bill self-service terminal which are connected with each other; the corporate bill business self-service centre platform is used for providing entry of system basic platform building information, data storage, equipment monitoring, optical character recognition (OCR), interface with an external system and system data inquiry statistics management; and the front-end corporate bill self-service terminal is used for storing corporate bills, recovering invalidated corporate bills, achieving interaction with users, and acquiring and identifying key information of corporate bills. | 05-21-2015 |
Xiaohua Li, Chengdu CN
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20110258389 | VIRTUAL STORAGE METHOD AND DEVICE - A virtual storage method and a device are disclosed. The virtual storage method includes: obtaining a volume management mode of a Logical Unit Number (LUN) from a storage array and recording the volume management mode into stitch data; and constructing a virtual LUN according to the LUN and the stitch data, and mapping the virtual LUN to a host to enable read/write access; and modifying a destination address of an Input/Output (I/O) data packet delivered by the host according to the stitch data after receiving the I/O data packet, delivering the I/O data packet to the virtual LUN, and delivering the I/O data packet which has been delivered to the virtual LUN to the storage array according to the stitch data, where an address of the storage array to which the I/O data packet is delivered is the same as the destination address of the I/O data packet before the destination address of the I/O data packet is modified. | 10-20-2011 |
20140189236 | DATA STORAGE METHOD AND STORAGE DEVICE - The embodiments of the present invention provide a data storage method, including: sending a performance level request to a storage device, which is used to query information about performance level of one or more logical unit number LUNs in the storage device; receiving a response sent by the storage device in response to the performance level request, wherein the response comprises the information about performance levels of the LUNs; and obtaining performance levels of the LUNs according to the information about performance levels of the LUNs so that data to be stored is written into a LUN of a corresponding performance level according to a accessing frequency level of the data to be stored comprised in a write-data instruction when the write-data instruction is received. | 07-03-2014 |
Xiao-Yu Li, Chengdu CN
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20140204824 | MULTI-GROUP COMMUNICATIONS AND RELATED DEVICES - Methods and apparatus are provided for communicating a message to multiple radio groups ( | 07-24-2014 |
20150365920 | ENHANCED LOCATION DATA THROUGHPUT ON A WINDOWED DATA CHANNEL IN A RADIO COMMUNICATION SYSTEM - A method for enhanced data throughput on a windowed revert repeater channel in a radio communication system includes requesting, by a subscriber unit and via a control channel of the radio communication system, a window in which to transmit data updates on the windowed revert repeater channel of the radio communication system; receiving, by the subscriber unit and via the control channel, an assigned window on the windowed revert repeater channel for the data updates; monitoring, by the subscriber unit, the control channel repeater and determining a timing of the windowed revert repeater channel based on the monitoring; and reverting to the windowed revert repeater channel based on the timing and the assigned window, and transmitting the data updates during the assigned window. A subscriber unit and radio communication system are also disclosed. | 12-17-2015 |
Xinyu Li, Chengdu CN
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20150193970 | VIDEO PLAYING METHOD AND SYSTEM BASED ON AUGMENTED REALITY TECHNOLOGY AND MOBILE TERMINAL - Disclosed is a video playing method based on augmented reality technology. In combination with augmented reality technology, a rectangular plane 3D model which completely covers a target picture in a current scene image is drawn, and at the same time, after a video file related to the target picture is separated into an audio stream and a video stream, a video image frame in the video stream is taken as a texture and is mapped to the 3D model frame by frame, and graphic rendering is performed; and finally, a scene image captured by a video camera and the rendered 3D model are fused and output, and the audio stream data is output synchronously. Correspondingly, also disclosed are a video playing system based on augmented reality technology and mobile terminal. The picture information in newspapers and periodicals, magazines and other print media can be easily converted into video information, and the video completely fits the picture in the spatial position, so that a user obtains a new audio-visual experience of combining emotion with scenery; and newspapers and periodicals, magazines and other paper media can also realize diversified propagation of information by virtue of the technology of the present invention, and provide a precise fast video push service. | 07-09-2015 |
Xiqi Li, Chengdu CN
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20100054626 | METHOD OF FAST IMAGE RECONSTRUCTION - The present invention provides a method of fast image construction. The wavelength information is extracted in advance based on characteristics of a Fourier domain Optical Coherent Tomography (OCT) system, to obtain a vector of wavelengths which are in a uniform distribution in a wave number space, and thus to obtain a virtual position coefficient of this wavelength vector at a CCD, from which a weight matrix is calculated based on a transfer function for a discrete Fourier transform with zero-padding interpolation. In operation of the system, the interpolation is carried out based on the weight matrix and collected data, or is carried out based on the weight matrix which has been truncated by being subject to windowing and the collected data, to obtain interpolated data satisfying requirements. The method according to the present invention is simple and easy to implement, by which, it is possible to improve the precision and speed of the Fourier domain OCT data process, and thus to improve the capacity of real-time image reconstruction of the Fourier domain OCT system. | 03-04-2010 |
Xuesheng Li, Chengdu CN
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20100158287 | Multi-directivity sound device - A sound producing apparatus with multi-directivity has two or more speakers to produce music or other types of audio sounds. Each of the speakers can produce audio sounds in a certain direction and at least one speaker is steerable so that its sound propagation direction relative to the others can be changed. Furthermore, one or more speakers can produce audio sounds in an adjustable angular range. One or more of the speakers can be dual-mode speakers, each of which can be operated as a wide-angle speaker or a narrow-angle speaker. With multi-directivity, it is possible to play one type of music in one direction and another type of music in another direction to suit the interests of the audience. The apparatus can be a mobile phone, an audio player, a digital or analog recorder/player, or the like. | 06-24-2010 |
Xuhui Li, Chengdu CN
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20130173839 | SWITCH DISK ARRAY, STORAGE SYSTEM AND DATA STORAGE PATH SWITCHING METHOD - A disk array for a storage system that includes a dual controller disk array and a server includes a disk frame and two controller nodes. Each controller node includes a switch, where a port of the switch is connected to a port of a switch of a peer controller node. Each controller node is configured to detect whether the peer controller node is invalid through the port. When it has been detected that the peer controller node is invalid, a local controller node enables the peer controller node to send, through the port of the switch of the peer controller node, received data from the server to a port of a switch of the local controller node. | 07-04-2013 |
Yibin Li, Chengdu CN
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20110258389 | VIRTUAL STORAGE METHOD AND DEVICE - A virtual storage method and a device are disclosed. The virtual storage method includes: obtaining a volume management mode of a Logical Unit Number (LUN) from a storage array and recording the volume management mode into stitch data; and constructing a virtual LUN according to the LUN and the stitch data, and mapping the virtual LUN to a host to enable read/write access; and modifying a destination address of an Input/Output (I/O) data packet delivered by the host according to the stitch data after receiving the I/O data packet, delivering the I/O data packet to the virtual LUN, and delivering the I/O data packet which has been delivered to the virtual LUN to the storage array according to the stitch data, where an address of the storage array to which the I/O data packet is delivered is the same as the destination address of the I/O data packet before the destination address of the I/O data packet is modified. | 10-20-2011 |
Yike Li, Chengdu CN
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20120062159 | DC BRUSHLESS MOTOR SYSTEM AND THE METHOD THEREOF - A DC brushless motor system is disclosed. When a rotor of the DC brushless motor is close to an aligned position, there will be current spike in the coil and voltage spike in an input capacitor. By decreasing the peak current limit of the current in the coil when the rotor is close to the aligned position, the current spike and the voltage spike are reduced. | 03-15-2012 |
20120112725 | Circuit and Method for Voltage Regulator Output Voltage Trimming - The present disclosure discloses a voltage regulator comprising a trimming circuit. The present disclosure also discloses a method for trimming an output voltage of a voltage regulator. In one embodiment the voltage regulator may comprise a power conversion module, a feedback and trimming module and a control module. The voltage regulator may be able to provide an output voltage that could be regulated to a plurality of output values, the feedback and trimming module may be able to trim the plurality of output values to their desired values successively and independently. | 05-10-2012 |
20120218797 | DRIVING CIRCUIT FOR BRIDGE RECTIFIER AND A DRIVING METHOD THEREOF - The embodiments of the present circuit and method disclose a bridge rectifier and a driving circuit. The bridge rectifier having a first input, a second input, a first output, and a second output may comprise two high side diodes and two low side switches. The driving circuit may be coupled to the first input of the bridge rectifier and the second input of the bridge rectifier, and the driving circuit may be configured to provide a first driving signal and a second driving signal. The first driving signal may be coupled to a first low side switch and the second driving signal may be coupled to a second low side switch. The first driving signal may be limited to less than a first predetermined driving voltage and the second driving signal may be limited to less than a second predetermined driving voltage. | 08-30-2012 |
20120274247 | DRIVE AND CONTROL CIRCUIT FOR MOTOR SYSTEM AND THE METHOD THEREOF - A drive and control circuit for motor system and the method thereof are disclosed. The motor system could be applied in a cooling device, wherein the motor system comprises a rotor, a coil and a bridge circuit. The drive and control circuit comprises a control unit, a state detecting circuit, a load determining circuit, and a startup setting circuit. The startup setting circuit makes the motor run with the maximum torque, thus to make the motor system start up easily and quickly. The load determining circuit detects the load of the motor system, thus to generate a load determining signal to determine the speed of the motor system. The control unit could be realized with few components so as to save the costs. | 11-01-2012 |
20120275199 | SWITCH-MODE POWER SUPPLY CONTROLLER AND ASSOCIATED METHOD - One embodiment of the present invention discloses a switch-mode power supply controller and associated method. In an embodiment, the controller comprises an on-time controller, an off-time controller, a switch control signal generator, and a jittering signal generator, wherein the jittering signal generator couples jitter into the on-time or the off-time of a primary switch of the power supply. Therefore the EMI performance may be improved. | 11-01-2012 |
20130002461 | SAMPLE AND HOLD CIRCUIT AND THE METHOD THEREOF - A sample and hold circuit and the method thereof are disclosed. The sample and hold circuit may be applied in voltage regulators or other circuits. The sample and hold circuit comprises: an input terminal configured to receive an input signal; an output terminal configured to provide an output signal; a control circuit configured to receive the input signal and the output signal, and wherein based on the input signal and the output signal, the control circuit generates a digital signal, and wherein the digital signal increases when the output signal is lower than the input signal, and maintains when the output signal is larger than or equal to the input signal; a digital-to-analog converter (DAC) configured to convert the digital signal to the output signal. | 01-03-2013 |
20130070485 | SWITCHING POWER CONVERTER AND CONTROL METHOD THEREOF - A switching power converter with an input terminal configured to receive a first input voltage; an output terminal configured to provide an output current to a load, wherein the output current has a peak value and an average value; a power switch; a first loop coupled to the input terminal, wherein the first loop configured to generate a first output signal based on the first input voltage; a second loop configured to generate a second output signal based on the output current; a multiplier configured to generate a multiplying signal based on multiplying the first output signal with the second output signal; and a driving circuit configured to generate a driving signal based on the multiplying signal to control the power switch, so as to reduce the ratio between the peak value and the average value of the output current. | 03-21-2013 |
20130082742 | LOAD DETECTING CIRCUITS AND THE METHOD THEREOF - A no-load detecting circuit and the method thereof are disclosed. The no-load detecting circuit may be applied in switching mode power supplies or other circuits. The no-load detecting circuit comprises: a variable resistance circuit coupled in series to a load of the switching mode power supply; and a first comparison circuit coupled to the variable resistance circuit to receive the voltage across the variable resistance circuit, wherein based on the comparison of the voltage across the variable resistance circuit and a first threshold, the first comparison circuit generates a no-load detecting signal indicative of the load status; wherein the equivalent resistance of the variable resistance circuit varies based on the varying of the load of the switching mode power supply. | 04-04-2013 |
20130141069 | SWITCH MODE POWER SUPPLY SYSTEM, ASSOCIATED CONTROLLER AND METHOD - A switch mode power supply system has a constant on-time signal generator, a logic circuit, a feedback circuit, a first ramp signal generator, a second ramp signal generator, a switch circuit having a power switch, and a comparator. A feedback signal from the feedback circuit is compensated by the first ramp signal generator, and a reference signal is compensated by the second ramp signal generator. The comparator compares the compensated feedback signal with the compensated reference signal to indicate an off time of the power switch while the constant on-time signal generator decides the on-time of the power switch. | 06-06-2013 |
20130147537 | FAILURE DETECTOR CIRCUIT AND ASSOCIATED METHOD - A failure detector circuit for detecting status of a protected circuit, the failure detector circuit having an operating cycle, has an enabling signal generator, a comparator circuit, a delay circuit. The enabling signal generator enables the comparator for an enable time in each operating cycle. The comparator circuit compares an output of the protected circuit with a reference signal. The delay circuit receives an output signal of the comparator to decide whether a failure occurred within a give delay time. | 06-13-2013 |
20130300385 | CHARGE-PUMP VOLTAGE DIVIDER AND ASSOCIATED CONTROL METHOD - The embodiments of the present invention disclose a charge-pump voltage divider and associated start-up method. The charge-pump voltage divider comprises a start-up circuit that can regulate an inrush current during start up. The start-up circuit comprises a switch, which operates in linear region state during start-up, and operates in switching state after the start-up completes. The charge-pump voltage divider may further comprise a load control switch configured to ensure the start-up is independent of a load current. | 11-14-2013 |
20130335052 | HIGH SIDE BUCK CONVERTERS AND CONTROL METHODS THEREOF - A high side buck converter includes a high side transistor, a low side transistor, a sensor, a sensing window generator, an error amplifier, a first comparator and an on-time signal generator. The high side and low side transistors are coupled together to form a switch node which is used as the reference ground of the controller. The sensor senses the output voltage and generates a sensing signal. The sensing window generator generates a sensing window signal. The error amplifier amplifies the error between a feedback signal of the sensing signal and a reference signal during the sensing window, and generates an error signal. The first comparator compares the feedback signal with the error signal and generates a first comparison signal. The on-time signal generator generates an on-time signal based on the first comparison signal, so as to control the high side and low side transistors. | 12-19-2013 |
20140049235 | SWITCHING REGULATOR AND THE METHOD THEREOF - A switching regulator including: a power stage having a first power switch and a second power switch coupled in series; a filter circuit having an inductor and an output capacitor; a feedback circuit configured to provide a feedback signal indicating an output voltage of the regulator; and a control circuit configured to provide a switching signal to control the ON and OFF of the first power switch so as to regulate the energy supplied to a load; wherein the control circuit has a peak current generator configured to generate a peak current signal, wherein the gain of a variation of the peak current signal between the contiguous switching cycles is less than one. | 02-20-2014 |
20140153301 | AC SIGNAL DETECTOR AND THE METHOD THEREOF - An AC signal detector having: a rectify circuit having a first input terminal and a second input terminal configured to receive an AC signal, and an output terminal configured to provide a rectified signal based on the AC signal; a detecting circuit having an input terminal coupled to the output terminal of the rectify circuit to receive the rectified signal, and an output terminal configured to provide a square signal based on the rectified signal; and an unplug indicate circuit having an input terminal coupled to the detecting circuit to receive the square signal, and an output terminal configured to provide an unplug indicate signal based on the square signal. | 06-05-2014 |
20140300336 | LOAD REGULATION COMPENSATION MODULE AND SWITCHING CONVERTER COMPRISING THE SAME - A switching converter and a load regulation compensation module for improving load regulation accuracy of the switching converter. The switching converter regulates its output voltage through controlling a switch module to switch on and off based on a first reference signal and a feedback signal indicative of the output voltage. The on and off switching of the switch module generates a switching current, resulting in an average offset voltage between an internal reference ground and a package ground pin of the switching converter. The load regulation compensation module is configured to monitor the switching current, and to compensate a second reference signal having a bandgap reference voltage referenced to the internal reference ground based on the monitored switching current to generate the first reference signal, so that the average offset voltage is substantially cancelled out from the first reference signal with respect to the package ground pin. | 10-09-2014 |
20150016154 | PEAK SAMPLE CIRCUIT FOR AC VOLTAGE AND METHOD THEREOF - A peak sample circuit for AC voltage, including: a rectifier coupled to receive an AC voltage and to rectify the AC voltage to generate a rectified signal; a delay circuit coupled to receive the rectified signal and to delay the rectified signal to generate a delayed rectified signal; a comparison circuit coupled to receive the delayed rectified signal and to generate a square signal based on the comparison of the rectified signal and the delayed rectified signal; and a sample output circuit coupled to receive the rectified signal, wherein the sample output circuit samples the rectified signal under the control of the square signal and provides a peak sample signal representative of the peak value of the AC voltage. | 01-15-2015 |
20150061611 | BOOTSTRAP REFRESH CONTROL CIRCUIT, POWER CONVERTER AND ASSOCIATED METHOD - A power converter having a bootstrap refresh control circuit and a method for controlling the power converter. The bootstrap refresh control circuit is configured to monitor a bootstrap voltage across a bootstrap capacitor and to provide an enhanced high side driving signal to a high side switch of the power converter. The bootstrap refresh control circuit is further configured to controlling the charging of the bootstrap capacitor through regulating the on and off switching of the high side switch and a low side switch based on the bootstrap voltage. The bootstrap refresh control circuit can refresh the bootstrap voltage in time to support driving the high side switch normally, without causing large spikes in an output voltage of the power converter and without influencing the power conversion efficiency of the power converter. | 03-05-2015 |
20150061628 | POWER CONVERTER, CLOCK MODULE AND ASSOCIATED CONTROL METHOD - A power converter and a clock module employed for providing a clock signal to the power converter. The power converter converts an input voltage to an output voltage based on at least the switching on and off of a main switch. The clock module monitors a deviation of the output voltage from its desired value and compares the deviation with a predetermined threshold window to provide a clock control signal. The clock module further regulates the clock signal in response to the clock control signal. | 03-05-2015 |
20150061630 | SWITCHING CONVERTER WITH CONTROLLABLE RESTART DELAY AND ASSOCIATED CONTROL METHOD - A switching converter providing an output voltage has a first switch and a control circuit. The control circuit provides an auxiliary power supply voltage, and a switching control signal to control the first switch based on the output voltage and a reference signal. The switching converter is shut down by the control circuit when a fault happens, and the switching converter restarts when the auxiliary power supply voltage decreases to a first threshold. | 03-05-2015 |
20150200536 | BOOST CONVERTER WITH SHORT-CIRCUIT PROTECTION AND METHOD THEREOF - A short-circuit protection method for a boost converter is disclosed. In this method, a switch of a switching circuit of the boost converter is turned on and a control voltage with a gradually increasing magnitude is supplied to control a short-circuit protection switch coupled between an input voltage and the switching circuit when the boost converter starts up. Then, a current flowing through the switch is detected and compared with a predetermined value. The switch is turned off and a preset time period is initiated if the current is higher than the predetermined value. It is detected whether a short-circuit event occurs at an output terminal of the boost converter at the end of the preset time period. If the short-circuit event occurs, the short-circuit protection switch is then turned off. | 07-16-2015 |
20150244276 | SWITCHING POWER CONVERTER, CLOCK MODULE, CONTROL CIRCUIT AND ASSOCIATED CONTROL METHOD - A power converter having a clock module and a method for controlling a clock signal of the power converter. The clock module is configured to provide the clock signal and to set a clock frequency of the clock signal to a first predetermined frequency at the moment when the power converter is powered on. The clock module is further configured to regulate the clock frequency to increase from the first predetermined frequency to a second predetermined frequency through a predetermined times of step type frequency increase during a startup procedure of the power converter. | 08-27-2015 |
20150381032 | SOFT-OFF CONTROL CIRCUIT, POWER CONVERTER AND ASSOCIATED CONTROL METHOD - A power converter having a soft-off control circuit and a variable reference signal generation module and associated method for controlling the power converter. The variable reference signal generation module is configured to provide a variable reference signal to the power converter. The soft-off control circuit is configured to determine whether an input voltage of the power converter exceeds an over-voltage threshold, and to control the variable reference signal to increase once the input voltage reaches the over-voltage threshold and to decrease when the input voltage is lower than the over-voltage threshold. The power converter can regulate an output voltage to increase with the increase of the variable reference signal and to decrease with the decrease of the variable reference signal so that during a soft-off procedure the input voltage may not exceed the over-voltage threshold, enabling the power converter to be safely shut off. | 12-31-2015 |
20150381051 | POWER CONVERTER WITH AVERAGE CURRENT DETECTION AND THE DETECTING CIRCUIT AND METHOD THEREOF - A power converter with average current detection and the corresponding detecting method and detecting circuit are disclosed. The average current detecting circuit has an average voltage detecting circuit and a voltage-current converting circuit. The average voltage detecting circuit generates a voltage across a detecting resistor by letting an inductor current flowing through an output inductor of the power converter flowing through the detecting resistor. Further, the average voltage detecting circuit samples the voltage across the detecting resistor when a switch of the power converter transits from an on state into an off state and the opposite and then calculates the average value of the two sampled voltages. The voltage-current converting circuit converts the average value into an average current by multiplying the average value by a scaling factor. | 12-31-2015 |
20160065072 | POWER CONVERTER WITH BOOTSTRAP CIRCUIT - A power converter with bootstrap circuit, the power converter has a high side switch, a low side switch, a bootstrap circuit and a bootstrap capacitor for providing a bootstrap voltage to supply a high side driver of the high side switch. The power converter receives an input voltage and provides an output voltage based on driving the high side switch and the low side switch to switch on and off. The bootstrap circuit has a first comparing circuit, a first comparing circuit, a boost circuit and a second charging circuit. The second charging circuit charges the bootstrap capacitor when a voltage difference between the input voltage and the output voltage is smaller than a voltage threshold. | 03-03-2016 |
20160105111 | CONTROL CIRCUIT AND ASSOCIATED METHOD FOR SWITCHING CONVERTER - A control circuit for switching converter has an ON signal generating circuit, an OFF signal generating circuit, a first comparator, a second comparator and a logic circuit. The switching converter has a high switch and a low side switch connected in series. The ON signal generating circuit provides an ON signal based on a reference signal and a feedback signal. The OFF signal generating circuit provides an OFF signal. The first comparator provides a first comparing signal based on a comparing result between a first threshold and a current through the high side switch. The second comparator provides a second comparing signal based on a comparing result between a second threshold and a current through the low side switch. The logic circuit provides a first switching signal to control the high side switch ON and OFF and a second switching signal to control the low side switch ON and OFF. | 04-14-2016 |
Yonggang Li, Chengdu CN
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20120087668 | METHOD AND DEVICE FOR GENERATING AND RECEIVING OOFDM SIGNAL, AND WAVELENGTH-DIVISION MULTIPLEXING SYSTEM - Embodiments of the present invention relate to the field of communications, and in particular, disclose a method and a device for generating and receiving an OOFDM signal, and a wavelength-division multiplexing system. The method for generating an OOFDM signal includes: converting a channel of serial high-speed data to N channels of parallel low-speed data; performing modulation mapping on the N channels of parallel low-speed data respectively to obtain N channels of information sequences; expanding the N channels of information sequences to 2N+2 channels of information sequences which have a Hermitian symmetric structure; performing inverse Fast Fourier Transform on the 2N+2 channels of information sequences, and then performing parallel-to-serial conversion to obtain an OFDM baseband signal; performing digital-to-analog conversion on the OFDM baseband signal to obtain an OFDM analog signal; and modulating the OFDM analog signal to an optical carrier to obtain an OOFDM signal. | 04-12-2012 |
Yongyao Li, Chengdu CN
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20160087723 | METHOD, APPARATUS, AND COMMUNICATION NODE FOR SUPPRESSING OUTPUT NOISE OF PCIE DEVICES IN OPTICAL FIBER COMMUNICATION - A method, an apparatus, and a communication node for suppressing output noises of peripheral component interconnect express (PCIe) devices in optical fiber communication is provided. The communication node includes a PCIe chip and a detection and control circuit connected to a transmitting end of the PCIe chip. The PCIe chip transmits an electrical signal by a transmitter of a first lane. The detection and control circuit detects a differential-mode voltage of the electrical signal. If the differential-mode voltage is lower than a first threshold, the detection and control circuit controls an optical module connected to the PCIe chip not to transmit an optical signal through the first lane of the optical module. When a PCIe system includes the communication node, output noises of the transmitter is suppressed, and a normal optical fiber communication link is ensured. | 03-24-2016 |
You Li, Chengdu CN
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20130029705 | METHOD AND APPARATUS FOR IMPLEMENTING NETWORK COGNITION - The present invention discloses a method and an apparatus for implementing network cognition. The method includes: determining a type of a received network task; according to the type of the received network task, selecting at least one cognitive capability identifier corresponding to the type of the network task; using network devices with the at least one cognitive capability identifier as alternative network devices; determining an alternative network device that is among the alternative network devices and has a cognitive capability that meets a condition for performing the network task is a target network device; and controlling the target network device to perform the network task. | 01-31-2013 |
Yousheng Li, Chengdu CN
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20140119744 | SINGLE OPTICAL FIBER REPEATER SYSTEM - A single optical fiber repeater system is provided, including a first external device, for generating a first signal; a second external device, for generating a second signal; a first optical fiber sharing apparatus, for transporting first signal and receiving second signal; a second optical fiber sharing apparatus, for transporting second signal and receiving first signal; and an optical fiber, for transporting first signal and second signal. Second optical fiber sharing apparatus converts wavelength of second signal into a wavelength different from first signal for transport in optical fiber. First optical fiber sharing apparatus converts wavelength of second signal into a wavelength identical to wavelength of first signal and transports to first external device. By transporting in different wavelengths over an optical fiber because transporting and receiving share same path, time delay is reduced, as well as the material used and labor cost. | 05-01-2014 |
Yuangui Li, Chengdu CN
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20090158134 | Method and apparatus for form adaptation - A method and an apparatus for retrieving a form template including one or more rendering attributes for rendering one or more partitions of a form are described. Whether the partitions of the form can be rendered in compliance with style constraints is determined according to the rendering attributes. An updated form template is generated such that at least one of the rendering attributes is updated. Partitions of the form can be rendered based on the updated template in compliance with the style constraints. | 06-18-2009 |
Yuxia Li, Chengdu CN
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20150206025 | METHOD FOR IDENTIFYING AND EXTRACTING A LINEAR OBJECT FROM AN IMAGE - A method for identifying and extracting a linear object from an image is disclosed. The method comprises: acquiring an original image to be processed, wherein the original image is taken by a camera, received through network transmission or copied from a compact disc or a removable disk; preprocessing the original image to obtain an enhanced image; extracting an edge information image from the enhanced image; then extracting linear features by performing, on the edge information image, a linear feature extracting transform improved with a cluster operator; finally; identifying and extracting the linear object by distinguishing the linear object from other linear features by considering characteristics of the linear object to be identified and extracted. According to the invention, a linear feature extracting transform improved with a cluster operator is constructed from a distribution of edge pixels in the edge information image along a 2-dimensional direction, which makes it possible to extract, rapidly and accurately, weak linear objects such as power lines from images having complicated background and sub-pixels. | 07-23-2015 |
Zhaoji Li, Chengdu CN
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20130256800 | SOI DEVICES FOR PLASMA DISPLAY PANEL DRIVER CHIP - SOI devices for plasma display panel driver chip, include a substrate, a buried oxide layer and an n-type SOI layer in a bottom-up order, where the SOI layer is integrated with an HV-NMOS device, an HV-PMOS device, a Field-PMOS device, an LIGBT device, a CMOS device, an NPN device, a PNP device and an HV-PNP device; the SOI layer includes an n+ doped region within the SOI layer at an interface between the n-type SOI layer and the buried oxide layer; and the n+ doped region has a higher doping concentration than the n-type SOI layer. | 10-03-2013 |