Chenggang
Chenggang Deng, Chengdu CN
Patent application number | Description | Published |
---|---|---|
20140285170 | EFFICIENT CONTROL CIRCUIT FOR BUCK-BOOST CONVERTERS AND CONTROL METHOD THEREOF - A controller used in a buck-boost converter includes a logic control circuit, a pulse width increasing circuit, a pulse width decreasing circuit, a first driving circuit and a second driving circuit. The pulse width increasing circuit generates a sum control signal based on a logic control signal generated by the logic control circuit. The pulse width increasing circuit increases the pulse width of the logic control signal by a first value to generate the pulse width of the sum control signal. The pulse width decreasing circuit generates a difference control signal based on the logic control signal. The pulse width decreasing circuit decreases the pulse width of the logic control signal by a second value to generate the pulse width of the difference control signal. The first and second driving circuit respectively generates driving signals based on the sum control signal and the difference control signal. | 09-25-2014 |
20140354250 | HIGH EFFICIENT CONTROL CIRCUIT FOR BUCK-BOOST CONVERTERS AND CONTROL METHOD THEREOF - A controller used in a buck-boost converter includes a clock generator, an error amplifying circuit, a comparing circuit, a proportional sampling circuit, a logic circuit, a pulse width increasing circuit, first and second driving circuits. Based on a clock signal generated by the clock generator, the proportional sampling circuit samples the difference between a current sensing signal and a compensation signal generated by the error amplifying circuit, and generates a proportional sampling signal. The pulse width increasing circuit generates a sum control signal based on the proportional sampling signal and a logic control signal generated by the logic circuit, wherein a modulation value adjusted by the proportional sampling signal is added to the pulse width of the logic control signal to generate the pulse width of the sum control signal. The first and second driving circuits generate driving signals based on the sum control signal and the logic control signal. | 12-04-2014 |
Chenggang Hu, Shenzhen CN
Patent application number | Description | Published |
---|---|---|
20120092152 | Method and Device for Obtaining Alarm Solution - The present invention provides a method and a device for obtaining an alarm solution, wherein the source alarm of the alarm currently examined is found according to the preset correlations among alarms ( | 04-19-2012 |
Chenggang Huang, Shanghai CN
Patent application number | Description | Published |
---|---|---|
20150308406 | WIND TURBINE SHADOW FLICKER PROTECTION SYSTEM - A light intensity detection system for a wind turbine including a single light sensor adapted to measure the intensity of light, a housing for protecting the single light sensor from environmental influences, and a driving mechanism configured to allow the single light sensor to receive light from a first direction at a first time and from a second direction at a second time. | 10-29-2015 |
Chenggang Jiang, Haidian District Beijing CN
Patent application number | Description | Published |
---|---|---|
20140328325 | RANDOM ACCESS METHOD AND DEVICE IN COGNITIVE RADIO SYSTEM - Various examples of the present disclosure describe a random access method and device in a CR system. The method includes: generating, by a base station device, a spectrum handover command, wherein the spectrum handover command comprises random access backoff time parameter information; and sending, by the base station device, the spectrum handover command to a user equipment in a cell to instruct the UE to initiate, during a spectrum handover procedure, a random access procedure using the random access backoff time parameter information. According to the various examples of the present disclosure, the random access backoff time parameter information is carried in the spectrum handover command, so that a random access conflict is suppressed during the spectrum handover procedure of the CR system. A large number of UEs that intensively perform random access on a target working frequency are pre-dispersed in time. As such, the delay and the failure probability of the random access on the target working frequency during the spectrum handover procedure are reduced, and thus the failure probability of the spectrum handover and the service interruption time are reduced, so that the user experience of the CR system is improved. | 11-06-2014 |
Chenggang Jiang, Beijing CN
Patent application number | Description | Published |
---|---|---|
20130190028 | Method, Device and System for Implementing Frequency Point Switch Based on CR - The present application relates to of the communication field and discloses a method, device and system for implementing frequency point shift based on CR. The method comprises: determining, by a cognitive base station, a candidate working frequency point for UE deployed in a cognitive frequency band; then sending to the UE broadcast information which at least carries the candidate working frequency point and instructing the UE to shift from the working frequency point currently used thereby to the candidate working frequency point by way of a frequency point shift command. In this way, the UE deployed in the cognitive frequency band can achieve frequency point shift quickly and accurately according to the instruction from the cognitive base station when an authorized user accesses the working frequency point currently used by the UE, effectively avoiding interference to the authorized user and thereby ensuring the service performance and service continuity of the system. The present application also discloses a corresponding device and system. | 07-25-2013 |
20140185653 | METHOD AND SYSTEM FOR OBTAINING AN IDLE SPECTRUM - The present disclosure provides a method and an apparatus for obtaining an idle spectrum. The method includes: obtaining, by a central management unit, configuration information of a transmitter of an authorized system, and obtaining geographic location information of candidate sense nodes; selecting, by the central management unit, sense nodes from the candidate sense nodes according to the configuration information and the geographic location information, and informing the selected sense nodes to perform spectrum sensing; and receiving, by the central management unit, sensing results of the selected sense nodes, and obtaining information of an idle spectrum according to the sensing results. | 07-03-2014 |
20140323096 | METHOD AND SYSTEM FOR SPECTRUM HANDOVER IN COGNITIVE RADIO NETWORKS - Various examples provide a method and a system for spectrum handover in cognitive radio (CR) systems. According to the method, after detecting a user of an authorized system appears at a current working frequency, the base station generates a spectrum handover command and sends the spectrum handover command via a channel identified by the CR DWNDI to instruct the UEs in the cell to perform spectrum handover according to the spectrum handover command. | 10-30-2014 |
20150139049 | METHOD AND DEVICE FOR SPECTRUM SENSING IN COGNITIVE RADIO SYSTEM - The cognitive radio cell acquires a scheme dividing frequency band resources into a number of sub-bands and corresponding silent period time frequency pattern, when performing silence on the sub-band which the cognitive radio cell works on according to the silence period time position of each sub-band defined in the silent period time frequency pattern, spectrum sensing on corresponding sub-band is implemented by radio spectrum sensing system or cognitive radio cell. | 05-21-2015 |
20150163080 | METHOD AND DEVICE FOR DETERMINING AVAILABLE SPECTRUMS - A method and device for determining available spectrums is disclosed in embodiments of the present invention. By applying the technical solution of the embodiments of the present invention, with consideration on the bi-directionality of the interference between wireless communication systems, when introduction of the cognitive system is required, the corresponding frequency will be determined as an available frequency only in the case the incumbent system and the cognitive system can be simultaneously guaranteed to meet the corresponding coexistence criterion among the corresponding frequency and adjacent frequencies thereof, thus ensuring that the determined available frequency band guarantees that the normal operation of the incumbent system is not interfered by the cognitive system while ensuring that the newly-introduced cognitive system can also operate normally without interference of the incumbent system, thereby improving the communication quality of the wireless communication systems. | 06-11-2015 |
20150181438 | METHOD AND DEVICE FOR DETERMINING AND ASSISTING IN DETERMINING BACK-UP FREQUENCY IN COGNITIVE RADIO SYSTEM - Disclosed are a method and device for determining and assisting in determining a back-up frequency in a cognitive radio system. A first cognitive system shares the wireless communication spectrum resources of an incumbent system, and the method thereof for determining a back-up frequency comprises: through a terminal, a first cognitive system obtaining a back-up frequency of a second cognitive system which has overlapping coverage in a target area in an overlapping coverage area; and according to the back-up frequency of the second cognitive system in the overlapping coverage area, selecting from the wireless communication spectrum resources at least one frequency as a back-up frequency in the target area. When determining the back-up frequency, the first cognitive system can refer to the back-up frequency of the second cognitive system to conduct determination, thereby optimizing the system performance. | 06-25-2015 |
Chenggang Jiang, Biejing CN
Patent application number | Description | Published |
---|---|---|
20140120970 | METHOD, SYSTEM AND DEVICE FOR TRIGGERING AND PERFORMING SPECTRUM SENSING - The embodiments of the present application relate to the technical field of wireless communications, and in particular to a method, system and device for triggering and performing spectrum sensing, used for solving the problem in the prior art that if the sensing period is set too long, a decline of service quality between an authorization system and a cognitive system or even a network paralysis will be caused due to interference; and if the sensing period is set too short, an increase in power consumption of devices and a waste of spectrum resources will be caused. The method for performing spectrum sensing in the embodiments of the present application includes: a sensing node judging whether or not the channel quality has declined to the requirement for performing in-band spectrum sensing; and after determining that the channel quality has declined to the requirement for performing in-band spectrum sensing, the sensing node performing in-band spectrum sensing. By way of applying the embodiments of the present application, the problems of decline of service quality between an authorization system and a cognitive system or even a network paralysis due to interference caused by setting the sensing period too long, or an increase in power consumption of devices and a waste of spectrum resources caused by setting period too short, can be avoided. | 05-01-2014 |
Chenggang Jin, Osceola, WI US
Patent application number | Description | Published |
---|---|---|
20140274925 | Compositions and Methods for Diagnosing, Treating and Monitoring Lyme Disease - Disclosed herein are compositions and methods for diagnosing, treating, and monitoring Lyme disease. | 09-18-2014 |
Chenggang Li, Maineville, OH US
Patent application number | Description | Published |
---|---|---|
20160022706 | TREATMENT OF LYMPHANGIOLEIOMYOMATOSIS - Embodiments disclosed herein provide compositions and methods for treating lymphangioleiomyomatosis (LAM) comprising inhibiting COX overexpression and prostaglandin over production by administering at least one COX inhibitor and/or prostaglandin biosynthetic pathway inhibitors. Lymphangioleiomyomatosis (LAM) is a rare lung disease. Some LAM occurances are associated with mutations in the tuberous sclerosis complex (TSC) locus. LAM occurs almost exclusively in women, usually of childbearing age. | 01-28-2016 |
Chenggang Li, Beijing CN
Patent application number | Description | Published |
---|---|---|
20120238566 | USE OF CELL AUTOPHAGY (TYPE II CELL APOPTOSIS) INHIBITORS - Use of cell autophagy (type II cell apoptosis) inhibitors for preventing and/or treating avian influenza, injury of lungs caused by avian influenza virus or nanometer materials. The cell autophagy (type II cell apoptosis) inhibitors are selected from 3-methyladenine, SB203580, LY294002, and or wortmannin. The injury of lungs includes acute respiratory distress syndrome. The avian influenza virus is H5N1, H5N2 or H9N2 avian influenza virus. The nanometer materials include PAMAM G3, G4, G5, G5.5, G6, G7, or G8. | 09-20-2012 |
Chenggang Li, Shenzhen CN
Patent application number | Description | Published |
---|---|---|
20140105214 | MESSAGE FORWARDING METHOD, SYSTEM, AND RELAY AGENT DEVICE - The present disclosure provides a message forwarding method and system, and a relay agent device. The forwarding method includes: receiving a first DHCPv6 message from a DHCPv6 client through a layer-3 interface; generating a Relay-forward message, where the first DHCPv6 message is encapsulated into the Relay-forward message and an identifier of the layer-3 interface is added therein; and sending the Relay-forward message to a DHCPv6 server. | 04-17-2014 |
20140334493 | MESSAGE FORWARDING METHOD, SYSTEM, AND RELAY AGENT DEVICE - The present disclosure provides a message forwarding method and system, and a relay agent device. The forwarding method includes: receiving a first DHCPv6 message from a DHCPv6 client through a layer-3 interface; generating a Relay-forward message, where the first DHCPv6 message is encapsulated into the Relay-forward message and an identifier of the layer-3 interface is added therein; and sending the Relay-forward message to a DHCPv6 server. | 11-13-2014 |
Chenggang Li, Shenzen CN
Patent application number | Description | Published |
---|---|---|
20130058256 | PORT MAPPING METHOD AND APPARATUS, AND COMMUNICATION SYSTEM - Embodiments described herein disclose a port mapping method and apparatus, and a communication system. A method includes: obtaining static port mapping information that includes a corresponding relationship between a public network port number, a DHCP client identifier, and a private network port number; obtaining a corresponding relationship between the DHCP client identifier and a private network IP address, and a public network IP address of a NAT gateway; and establishing a port mapping relationship according to the obtained public network IP address of the NAT gateway, the corresponding relationship between the DHCP client identifier and the private network IP address, and the static port mapping information. | 03-07-2013 |
Chenggang Li, Pudong CN
Patent application number | Description | Published |
---|---|---|
20150252365 | METHOD FOR SCREENING MICRORNAS WITH GENE SILENCING FUNCTION AT BOTH LEVELS OF TRANSCRIPTION AND POST-TRANSCRIPTION - Provided is a method for screening microRNAs with gene silencing function at both transcriptional and post-transcriptional levels. The microRNA obtained via the screening method can down-regulate the expression of mRNA of a target gene by binding to a specific site of 5′-flanking region of the target gene, and also down-regulate the expression of the protein of the target gene by binding to a specific site of the 3′-untranslated region of the target gene. Also provided are microRNAs obtained via the screening method, the use of the same in gene silencing, and a method of gene silencing by using the same. | 09-10-2015 |
Chenggang Liu, Qingdao CN
Patent application number | Description | Published |
---|---|---|
20120113114 | METHOD AND DEVICE FOR GENERATING PERSPECTIVE IMAGE - A method and device for generating a perspective image are provided, which are related to multimedia technology. The method comprises the following steps: acquiring the length, height and vanishing point of a required perspective image and the length and height of an original image; for each pixel point (x′, y′) in the perspective image, determining the coordinate (x, y) of a pixel point in the original image corresponding to said pixel point; copying the pixel point at the coordinate (x, y) in the original image to the position corresponding to the coordinate (x′, y′) in said perspective image. The invention utilizes a principle that perspective image is smaller than original image, and employs a form of inverse transform, thereby the calculated pixel points are reduced, and compared with forward calculation, the calculation is greatly reduced, which improves the speed of perspective image generating and saves central processing unit (CPU) resources. | 05-10-2012 |
Chenggang Wen, Tokyo JP
Patent application number | Description | Published |
---|---|---|
20090231460 | IMAGE SIGNAL PROCESSING APPARATUS, IMAGE SIGNAL PROCESSING PROGRAM, AND IMAGE SIGNAL PROCESSING METHOD - An image signal processing apparatus including a first corrected tone processing section for performing such a corrected tone process which extends a tone width of a high luminance region or a low luminance region in an image signal, a tone processing section for performing a space-variant tone process for all luminance regions in the image signal, and a second corrected tone processing section for performing a corrected tone process depending on a displaying apparatus. | 09-17-2009 |
Chenggang Yu, Beijing CN
Patent application number | Description | Published |
---|---|---|
20120288893 | SEED-SPECIFIC EXPRESSION VECTOR AND ITS CONSTRUCTION METHODS AND APPLICATIONS - A seed-specific expression vector and its construction methods and applications are disclosed. A fusion protein expression cassette consisting of | 11-15-2012 |
Chenggang Zhang, Beijing CN
Patent application number | Description | Published |
---|---|---|
20100028917 | A NEUROGLOBIN ENZYME-LINKED IMMUNOSORBENT ASSAY KIT AND THE USE OF IT - The invention discloses a Neuroglobin enzyme-linked immunosorbent assay kit and the use of it. The Neuroglobin enzyme-linked immunosorbent assay kit provided by the invention includes Neuroglobin polyclonal antibody, Neuroglobin monoclonal antibody and enzyme labeled antibody. Neuroglobin monoclonal antibody is produced through culturing hybridoma cells prepared by cell conjugation after inoculating mice with Neuroglobin antigen, whereas Neuroglobin polyclonal antibody is produced from animal antiserum after inoculating with Neuroglobin antigen. | 02-04-2010 |
20140248348 | USE OF SALMONELLA FLAGELLIN DERIVATIVE IN PREPARATION OF DRUG FOR PREVENTING AND TREATING INFLAMMATORY BOWEL DISEASES - The application of flagellin derivative CZLC31 from | 09-04-2014 |
Chenggang Zhou, Wuhan CN
Patent application number | Description | Published |
---|---|---|
20100038785 | Materials for Adhesion Enhancement of Copper Film on Diffusion Barriers - We have used the state-of-the-art computational chemistry techniques to identify adhesion promoting layer materials that provide good adhesion of copper seed layer to the adhesion promoting layer and the adhesion promoting layer to the barrier layer. We have identified factors responsible for providing good adhesion of copper layer on various metallic surfaces and circumstances under which agglomeration of copper film occur. Several promising adhesion promoting layer materials based on chromium alloys have been predicted to be able to significantly enhance the adhesion of copper films. Chromium containing complexes of a polydentate β-ketoiminate have been identified as chromium containing precursors to make the alloys with chromium. | 02-18-2010 |
20100041243 | Precursors for Depositing Silicon-containing Films and Methods for Making and Using Same - Aminosilane precursors for depositing silicon-containing films, and methods for depositing silicon-containing films from these aminosilane precursors, are described herein. In one embodiment, there is provided an aminosilane precursor for depositing silicon-containing film comprising the following formula (I): | 02-18-2010 |
Chenggang Zou, Haidian District CN
Patent application number | Description | Published |
---|---|---|
20150279254 | Display Device and Electronic Apparatus - A display device and an electronic apparatus using the display device include a display component configured to output initial light corresponding to a first image; and a light path converting component configured to receive the initial light corresponding to the first image from the display component, and perform light path conversion on the initial light corresponding to the first image to form a virtual image corresponding to the first image, wherein the virtual image corresponding to the first image is capable of being perceived at a particular position and a size of the virtual image perceived is greater than a display size of the display component. | 10-01-2015 |
20150323788 | Display Device and Electronic Apparatus - A display device and an electronic apparatus using the display device include a display component configured to output initial light corresponding to a first image; and a light path converting component configured to receive the initial light corresponding to the first image from the display component and to perform light path conversion on the initial light corresponding to the first image to form a virtual image corresponding to the first image, wherein the virtual image corresponding to the first image is perceived at a particular position and a size of the virtual image perceived being greater than a display size of the display component, wherein the light path converting component comprises a visible area, the particular position and the display component are located separately at two sides of a plane on which the visible area is located. | 11-12-2015 |