Jiwei

Jiwei Chen, Fremont, CA US

Patent application number	Description	Published
20160126839	BOOST CONVERTERS HAVING SELF-ADAPTIVE MAXIMUM DUTY-CYCLE-LIMIT CONTROL - In one embodiment, a control circuit adjusts a duty cycle of a boost converter and comprises a duty cycle limiter generator configured to receive an input voltage provided to the boost converter and to generate a control signal to be provided to the boost converter for adjusting the duty cycle of the boost converter to control the output voltage of the booster converter in response to the input voltage. In one embodiment, the maximum duty cycle limit generator further generates the maximum duty cycle signal in response to an output voltage of the boost converter.	05-05-2016

Jiwei Fan, Cary, NC US

Patent application number	Description	Published
20130002212	DC-DC CONVERTER - A DC-DC converter, having an input voltage and an output voltage, includes an inductor and a switch switching the input voltage to an input side of the inductor, where a feedback path controlling initiation of closing the switch includes capacitive coupling of the voltage at the input side of the inductor.	01-03-2013
20140266084	DC-DC CONVERTER - A DC-DC converter, having an output voltage and including at least one electronic switch: first circuitry controlling the output voltage by adjusting a switching frequency of the electronic switch, and second circuitry adjusting the switching frequency toward a target switching frequency when the switching frequency significantly deviates from the target switching frequency.	09-18-2014
20150091535	DIRECTLY AMPLIFIED RIPPLE TRACKING CONTROL SCHEME FOR MULTIPHASE DC-DC CONVERTER - A controller for a multiphase power converter has a plurality of DC to DC converters coupled in parallel between a voltage source and a single output terminal is provided. The controller includes a voltage sensing circuit coupled to the output terminal. An internal pulse generating circuit is couplable to the voltage sensing circuit for generating an internal pseudo-pulse width modulated signal. An ON time signal distribution circuit is couplable to an output of the internal pulse generating circuit and couplable to driver circuit for driving each of the plurality of DC to DC converters. A multiphase power converter and method also disclosed.	04-02-2015
20150102794	DC-DC CONVERTER USING INTERNAL RIPPLE WITH THE DCM FUNCTION - A DC-DC converter, having an input voltage and an output voltage, includes an inductor and a switch switching the input voltage to an input side of the inductor, where a feedback path controlling initiation of closing the switch includes capacitive coupling of the voltage at the input side of the inductor.	04-16-2015

Jiwei Gao, Shenzhen CN

Patent application number	Description	Published
20150304124	Message Processing Method and Device - A message processing method and device, the method comprises: allocating a node to an input message in a cache space for saving the message, and taking the location corresponding to the cache space as index information of a descriptor of the message; and extracting the descriptor information of the message; framing and saving the descriptor information and node information of the message in a node linked list. The abovementioned solution can achieve uniform memory of unicast and multicast messages, and the descriptor linked list corresponds to the packet entity caching resource, thereby significantly reducing the overheads for managing the unicast and multicast messages, so as to improve the node aggregation capability.	10-22-2015

Jiwei Guo, Shenzhen CN

Patent application number	Description	Published
20140082718	METHOD AND APPARATUS FOR GENERATING A SECURITY TOKEN CARRIER - A method and an apparatus for generating a security token carrier, which belong to the field of data security, are disclosed. The method may include: generating multiple pieces of token information, establishing a relation which associates the token information with location information of a pre-set interactive security token carrier; obtaining security data which is set by a user for protecting the interactive security token carrier; and generating the interactive security token carrier by using the token information, the relation, the security data and public information of the interactive security token carrier. The apparatus may include: a token information processing module, a security data obtaining module and an interactive security token carrier generating module.	03-20-2014

Jiwei Guo, Jiangsu CN

Patent application number	Description	Published
20160102553	INCLINED LAYERED SOLID-FILLING MINING METHOD IN ULTRATHICK COAL LAYER - An inclined layered solid-filling mining method in an ultrathick coal layer is applicable to exploitation in a “three-unders” ultrathick coal layer. In this method, the number of inclined layers is determined based on a principle of layered thickness from 2.5 m to 4.5 m, and a layered-exploitation downward-filling exploitation order is adopted. Tunnels and equipment are arranged according to a conventional solid-filling mining method. A cyclic order of mining, layout of metal meshes (	04-14-2016

Jiwei He, Shanghai CN

Patent application number	Description	Published
20140077342	SEMICONDUCTOR DEVICE HAVING BURIED LAYER AND METHOD FOR FORMING THE SAME - Semiconductor devices having a buried layer and methods for forming the same are disclosed. In an exemplary method, a hard mask layer can be provided on a semiconductor substrate. The hard mask layer can have a plurality of through-openings. A plurality of deep trenches can be formed in the semiconductor substrate using the hard mask layer as a mask. A bottom of each of the plurality of deep trenches in the semiconductor substrate can be doped to form a plurality of heavily-doped regions. One or more of the plurality of heavily-doped regions can be connected to form the buried layer in the semiconductor substrate. There is thus no need to use an epitaxial process to form active regions. In addition, lateral isolation structures can be simultaneously formed in the semiconductor substrate.	03-20-2014
20150041893	LDMOS DEVICE AND FABRICATION METHOD - Various embodiments provide LDMOS devices and fabrication methods. An N-type buried isolation region is provided in a P-type substrate. A P-type epitaxial layer including a first region and a second region is formed over the P-type substrate. The first region is positioned above the N-type buried isolation region, and the second region surrounds the first region. An annular groove is formed in the second region to surround the first region and to expose a surface of the N-type buried isolation region. Isolation layers are formed on both sidewalls of the annular groove. An annular conductive plug is formed in the annular groove between the isolation layers. The annular conductive plug is in contact with the N-type buried isolation region at the bottom of the annular conductive plug. A gate structure of an LDMOS transistor is formed over the first region of the P-type epitaxial layer.	02-12-2015

Jiwei He, Beijing CN

Patent application number	Description	Published
20130215832	BROADBAND DUAL-POLARIZED OMNI-DIRECTIONAL ANTENNA AND FEEDING METHOD USING THE SAME - A broadband dual-polarized omni-directional antenna and a feeding method using the same are provided. By setting a vertically polarized antenna and a horizontally polarized antenna each in co-axial, the horizontally polarized antenna is attached to an upper surface and a lower surface of the attaching plate respectively by two arms of a folded dipole and the two arms connect to an inner conductor and an outer conductor of a feed line so that the dual-polarized antenna may have a comparatively broad bandwidth. At the same time, since the dual-polarized ceiling antenna has a good isolation effect and coverage balance, it may work as the MIMO antenna in the LTE and WLAN systems effectively and may be used in the 2G and 3G networks to improve the data transmission rate.	08-22-2013
20140203977	MONITORING METHOD AND SYSTEM AND INTEGRATED MONITORING DEVICE FOR ANTENNA OSCILLATOR OF BASE STATION - Disclosed are a monitoring method and system and an integrated monitoring device for an antenna oscillator of a base station, which are used to monitor whether an anomaly occurs in the antenna oscillator of the base station. The monitoring method for an antenna oscillator of a base station in the present invention comprises: performing wave detection and analog-to-digital conversion on an obtained transmission signal of the antenna oscillator of the base station, to acquire a digital signal of a direct-current signal of the transmission signal; determining the amplitude of changes of the digital signal in a set time length, and when the amplitude of the changes is greater than a preset amplitude change threshold, determining that an anomaly occurs in the antenna oscillator; otherwise, determining that the antenna element is normal.	07-24-2014

Jiwei Li, Shenzhen CN

Patent application number	Description	Published
20100191673	METHOD, DEVICE AND SYSTEM FOR CONFIGURATION AND QUOTATION PROCESSING - A configuration and quotation processing method and system, a configuration and quotation device, and a configuration conversion device are provided. The method includes: acquiring a sales bill of material (SBOM) configuration rule of a product; calculating a configuration bill of material (BOM) of the product according to the SBOM configuration rule, a product price, and received quotation configuration parameters; filtering the configuration BOM according to a preset output content and structure rule to generate an SBOM of the product; and converting the SBOM into a base bill of material (BBOM) according to an SBOM to BBOM (S2B) conversion rule. As such, a client-oriented SBOM can be automatically generated, thereby ensuring the accuracy of the SBOM, and improving the work efficiency.	07-29-2010

Jiwei Ma, Poitiers FR

Patent application number	Description	Published
20150340708	Process for Preparing Nanoparticles of a Catalyst for Cathodic Reduction of Dioxygen in the Presence of Methanol - The invention relates to a process for preparing nanoparticles of a catalyst for cathodic reduction and which is tolerant to methanol, these nanoparticles comprising a metallic centre and a submonolayer of a chalcogen.	11-26-2015

Jiwei Shi, Beijing CN

Patent application number	Description	Published
20140247564	SHIELDING STRUCTURE FOR ELECTRONIC DEVICE - The invention provides an electromagnetic shielding for electronic device. The electromagnetic shielding comprises: an opening provided at a position corresponding to the electronic device, through which a heat sink passes to be in contact directly with the electronic device; and at least one elastic arm made of conductive material provided at the circumference of the opening which are extending in a direction away from the shielding to be in a conductive contact with the side surface of the heat sink when the heat sink is mounted in position.	09-04-2014

Jiwei Sun, Shanghai CN

Patent application number	Description	Published
20120121222	FIBER OPTIC CONNECTORS, CABLE ASSEMBLIES AND METHODS FOR MAKING THE SAME - Disclosed are fiber optic connectors including a holder for attaching a fiber optic cable to a fiber optic connector along with cable assemblies and methods for making the same. In one embodiment, the holder includes a first and a second cantilevered arm that are squeezed together when a sleeve is placed over the holder. Further, one or more of the cantilevered arm may include a plurality of teeth for “biting” into the cable jacket and providing a suitable fiber optic cable retention force. The fiber optic connectors, cable assemblies and methods disclosed herein are advantageous since they allow the craft to quickly, reliably, and easily attach a robust fiber optic cable to a connector, thereby providing a rugged solution for the craft.	05-17-2012
20120180298	TERMINATION TOOL AND METHODS THEREFOR - A termination tool assembly for terminating a fiber optic cable to a fiber optic connector includes a cam and a base for receiving the cam. The cam serves to rotationally activate a mechanical splice on a mechanical splice connector and thereby terminate the fiber optic cable. The fiber optic connector and fiber optic cable are axially received by the termination tool and are laterally removed from the termination tool after termination as a terminated fiber optic cable assembly.	07-19-2012
20140105552	FIBER OPTIC CONNECTORS, CABLE ASSEMBLIES, AND METHOD FOR MAKING THE SAME - A fiber optic connector has a mechanical splice assembly and a mechanical splice assembly holder. The mechanical splice assembly holder includes a body section and a cable retention section. The cable retention section includes a pair of cable retention arms extending from the body section and a guiding groove that is extended out from the body section. The guiding groove is located between the two cable retention arms.	04-17-2014

Jiwei Sun, Clemson, SC US

Patent application number	Description	Published
20150035546	High Sensitivity Tunable Radio Frequency Sensors - Disclosed are highly sensitive and tunable RF sensors that provide detection and analysis of single cells and particles. The tunable RF sensors are configured as tunable interferometers, wherein cells or particles to be analyzed are passed through a channel, such as a microfluidic channel, across waveguides corresponding to reference and test branches of the interferometers. A network analyzer coupled to the interferometers can be configured to measure a plurality of scattering parameters, such as transmission scattering coefficients (S	02-05-2015

Jiwei Tian, Qingdao CN

Patent application number	Description	Published
20150354956	METHOD FOR THE MEASUREMENT OF TURBULENCE BY USING RECIPROCATING OCEAN MICROSTRUCTURE PROFILER - The method for the measurement of turbulence by using reciprocating ocean microstructure profiler includes the following procedures: 1) system startup; 2) detection of the profile data of ocean dynamic environment information: a. temperature detection; b. shear detection; c. depth detection; and d. current and temperature & conductivity detection; e. gesture sensing; 3) control of ascending and descending operations of the profiler: a. uprising control; b. redirection operation; and c. sinking control; and 4) sleep mode. The method doesn't consume labor several times and the equipment is capable of providing long-time continuous profile measurement at a fixed area along a steel cable; and the entire system can ascend and descend steadily after hydrodynamic optimized layout, eliminating the measurement errors contributable to water flow fluctuation during detection, thus obtaining accurate ocean microstructure observation in vertical with higher precision.	12-10-2015
20150354957	RECIPROCATING OCEAN MICROSTRUCTURE PROFILER - A reciprocating ocean microstructure profiler includes a first profiler subunit, a second profiler subunit and a central stand. The first profiler subunit is provided with the first buoyancy drive part and the first observation part; and the second profiler subunit is provided with the second buoyancy drive part and the second observation part. Both the first and second buoyancy drive parts are installed with a floating compartment, a drive compartment and a pressure housing each. A top oil bladder is provided in the floating compartment and a bottom oil bladder in the pressure housing. A drive pump assembly and a solenoid valve are installed in the drive compartment. The first and second observation parts are electrically connected to a controller each and each controller is electrically connected to a drive pump assembly and a solenoid valve.	12-10-2015

Jiwei Yang, Palo Altop, CA US

Patent application number	Description	Published
20150368609	PERIVASCULAR STROMAL CELLS FROM PRIMATE PLURIPOTENT STEM CELLS - The invention provides methods, compositions and kits for making and using pericyte-like cells or perivascular stromal cells derived from pPS cells.	12-24-2015

Jiwei Yu, Zhoushan City CN

Patent application number	Description	Published
20130185859	Self-Closing Water Saving Device, Method and Toilet - Disclosed are a self-closing water saving device, method, and toilet. The self-closing water saving device for mounting in a tank of a toilet bowl is used for supplying water to the tank, and is characterized by comprising: a water inlet adapted to be connected to an external water source, a water outlet adapted to provide water to the tank, and a jet-propelling port for jetting water to the bottom of a water trap of the toilet bowl or the bottom of a sewer; wherein, when the tank discharges water to the water trap, the water jetted from the jet-propelling port is used to propel the water which is discharged from the tank and flows into the water trap, the bottom of the water trap, or the bottom of the sewer.	07-25-2013

Jiwei Zhang, Shenzhen CN

Patent application number	Description	Published
20130010650	System and method for improving service subscription or unsubscription speed for Wireless Application Protocol (WAP) roaming users - The present invention discloses a system and a method for improving service subscription or unsubscription speed for Wireless Application Protocol (WAP) roaming users, wherein the system comprises a national WAP portal protocol conversion module and provincial WAP portal protocol conversion modules. The national WAP portal protocol conversion module and each provincial WAP portal protocol conversion module are configured to, through performing conversion between a synchronous message and an asynchronous message, inform a corresponding provincial WAP portal of a subscription or unsubscription request sent by a national WAP portal through a long connection link between the national WAP portal protocol conversion module and the provincial WAP portal protocol conversion module, and inform the national WAP portal of a processing result of subscription or unsubscription performed by the provincial WAP portal through the long connection link. The present invention accomplishes the conversion transmission of the synchronous message and asynchronous message through protocol conversion modules, reduces the load of the national WAP portal greatly, and makes it quite obvious that the service subscription or unsubscription speed for users is improved.	01-10-2013
20130041944	Method and system for configuring message tracking in telecom service - The disclosure discloses a method for configuring message tracking in a telecom service, comprising: a service module initiates a registration message to a tracking server, and synchronizes a tracking condition with the tracking server; a monitoring client initiates a registration message to the tracking server, and receives the tracking condition synchronously sent by the tracking server; and the monitoring client performs a configuration on the tracking condition, and sends a synchronization message of configuration information to the corresponding service module through the tracking server to complete the message tracking configuration. The disclosure further discloses a system for configuring message tracking in a telecom service. The method and system construct a general platform for the message tracking, which can integrate the message tracking of various different services. A new service module or a new monitoring client could be added more flexibly.	02-14-2013

Jiwei Zhang, Jinan City CN

Patent application number	Description	Published
20120103106	GASBAG TYPE PAVEMENT ACCELERATED LOADING TESTING APPARATUS - Disclosed is a gasbag type pavement testing apparatus, comprising a main frame (	05-03-2012
20120137762	FLOATING MECHANISM LOADING VEHICLE PROVIDED WITH DOUBLE SHAFTS AND EIGHT WHEELS FOR PAVEMENT ACCELERATED LOADING TEST - Disclosed is a floating mechanism loading vehicle provided with double shafts and eight wheels for pavement accelerated loading test. The floating mechanism loading vehicle comprises front and rear rotating shafts (	06-07-2012

Jiwei Zhao, Shenzhen CN

Patent application number	Description	Published
20130144111	Method and Apparatus for Managing Stress - A stress management device is formed in an integrated design that enables pulse measurement, display of results and a power supply gathered into a small finger clip device. The stress management device includes a non-invasive infrared sensor that identifies and measures pulse rate variability and utilizes that information to calculate the power spectrum distribution and create a curve of the results multiple times per second. The device incorporates a display screen on which a graphic image of a pair of lungs filling and emptying to encourage the user into a predetermined breathing pattern known to reduce stress levels during a training period. After the completion of the training period, the device presents a score reflecting the percentage of times the user achieved high, medium and low relaxation states, and a pie chart reflecting the distribution of the states of relaxation calculated during the training period.	06-06-2013
20140331306	Anti-Virus Method and Apparatus and Firewall Device - An anti-virus method which includes receiving, by a first thread, data packets belonging to the same data stream, and sequentially buffering payload data of data packets bearing file content among the received data packets into a first queue, reading, by a second thread, payload data of at least one data packet from a start position of the first queue, and determining whether payload data in the first queue is file content of a compressed file. If yes, identifying a compressed format of the compressed file, querying a decompression algorithm from a mapping between a compressed format and a decompression algorithm, by using the queried decompression algorithm, reading payload data of data packets one by one from the first queue, and performing decompression processing separately on payload data that is read each time, and performing anti-virus detection separately on file content that is obtained.	11-06-2014