Patents by Inventor Hua Zhang

Hua Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20180145620
    Abstract: Exciter circuitry includes a controller that receives a first signal requesting that a generator coupled to the exciter circuitry stop providing real power to an electrical grid. The controller also sends a second signal to a turbine control system of a turbine coupled to the generator to close at least one fuel nozzle, at least one inlet guide vane, or at least one variable stator vane in response to receiving the first signal. The controller further instructs the exciter circuitry to provide direct current (DC) voltage and DC current to a rotor of the generator, wherein the DC voltage and the DC current causes the generator to operate synchronously with the electrical grid.
    Type: Application
    Filed: November 21, 2016
    Publication date: May 24, 2018
    Inventors: Hua Zhang, Wei Ning
  • Patent number: 9979134
    Abstract: An electrical connector includes an insulating housing, contacts, a shielding plate disposed in the housing and a metallic shell. The housing includes a base and a mating tongue, the base includes a retaining portion and a supporting portion extending downwards beyond the retaining portion. The contacts have contacting portions exposing to the mating surface and legs extending downwards from the supporting portion. The shielding plate defines a pair of side latches thereof. The metallic shell is retained on the retaining portion of the base and surrounds the mating tongue to define a mating cavity between the shell and the mating tongue. The connector further includes a front shielding member covering a front face of the supporting portion and a rear shielding member covering on a rear face of the supporting portion for shielding the legs of the contacts in a front and rear direction.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: May 22, 2018
    Assignee: FOXCONN INTERCONNECT TECHNOLOGY LIMITED
    Inventors: Chun-Ming Yu, Juan Du, Guo-Hua Zhang
  • Publication number: 20180135467
    Abstract: Embodiments of the present disclosure relate to cooling a gas turbine which operates at varying loads. An apparatus according to embodiments of the present disclosure may include: an outlet heat exchanger positioned within a transition duct of a turbine outlet of a gas turbine, wherein the transition duct is positioned upstream from a heat recovery steam generator (HRSG); an extraction line fluidly connecting the outlet heat exchanger to the HRSG, such that a heat exchange fluid flows from the HRSG to the outlet heat exchanger through the extraction line; and a return line fluidly connecting the outlet heat exchanger to the HRSG, such that the heat exchange fluid returns to the HRSG through the return line after passing through the outlet heat exchanger.
    Type: Application
    Filed: November 14, 2016
    Publication date: May 17, 2018
    Inventors: Hua Zhang, Douglas Beadie, Manuel Cardenas, John Edward Sholes, JR.
  • Patent number: 9971098
    Abstract: A coupler and a waveguide chip including the coupler are provided. The coupler connects a first optical waveguide to a second optical waveguide and includes an entity region and a first waveguide grating. A first end of the entity region is coupled to the first optical waveguide. A second end of the entity region is coupled to a second end of the first waveguide grating. A first end of the first waveguide grating is coupled to the second optical waveguide. Size of the first end of the entity region matches size of an end plane of the first optical waveguide, size of an end plane of the second end of the entity region matches size of an end plane of the second end of the first waveguide grating, and size of the first end of the first waveguide grating matches size of an end plane of the second waveguide.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: May 15, 2018
    Assignees: Hisense Broadband Multimedia Technologies Co., Ltd., Hisense USA Corp., Hisense International Co., Ltd.
    Inventor: Hua Zhang
  • Publication number: 20180131140
    Abstract: An electrical connector includes an insulative housing having a main body defining a plurality of mating cavities each coupled with an LED located right behind the mating cavity. A plurality of contacts are disposed in the housing corresponding to each of the mating cavities. A translucent color ring is assembled upon a front face of the main body of the housing in front of each mating cavity. A holder is attached upon a rear face of the housing behind the contacts. The LEDs and the corresponding connecting legs are retained by the holder.
    Type: Application
    Filed: November 8, 2017
    Publication date: May 10, 2018
    Inventors: XIAO-BO DU, ER-dong Ma, Peng Chen, Chun-ming Yu, Guo-hua Zhang
  • Publication number: 20180128175
    Abstract: A system includes a gas turbine system having a first compressor, a combustor, and a turbine, where the first compressor provides a first portion of a discharge air directly to the combustor. The system includes a fluid circuit which receives a fluid comprising a second portion of the discharge air from the first compressor or a combustible fluid and provides the second portion of the discharge air to fuel at a location upstream of the combustor to alter a chemical and physical characteristic of the fuel in an air-fuel mixture that is provided to the combustor.
    Type: Application
    Filed: November 9, 2016
    Publication date: May 10, 2018
    Inventors: Yimin Huang, Manuel Cardenas, Hua Zhang
  • Publication number: 20180131141
    Abstract: An electrical connector includes an insulative housing having a main body defining a plurality of mating cavities each coupled with an LED located right behind the mating cavity. A plurality of contacts are disposed in the housing corresponding to each of the mating cavities. A translucent color ring is assembled upon a front face of the main body of the housing in front of each mating cavity. A printed circuit board is vertically attached upon a rear side of the main body with a terminal module assembled on the bottom edge. A plurality of LEDs are mounted upon the printed circuit board wherein all LEDs are electrically connected to the terminal module having connecting legs.
    Type: Application
    Filed: November 8, 2017
    Publication date: May 10, 2018
    Inventors: Er-Dong MA, Xiao-Bo DU, Peng CHEN, Chun-Ming YU, Guo-Hua ZHANG
  • Patent number: 9967945
    Abstract: An electronic device comprises a voltage conversion unit, a first load unit, a current adjusting unit, and a control unit. The voltage conversion unit is configured to transfer an input voltage to an output voltage. The current adjusting unit electrically is coupled with the second terminal of the load unit. The current adjusting unit is configured to control a first driving current flowing through the first load unit according to a first current reference signal. The control unit is electrically coupled with the first load unit and the voltage conversion unit. The control unit is configured to generate a first voltage reference signal according to the first current reference signal and generate a first control signal to the voltage conversion unit according to a voltage of the second terminal of the first load unit and the first voltage reference signal.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: May 8, 2018
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Jian Chen, Xiao-Ping Fu, Xing-Hua Zhang
  • Patent number: 9966028
    Abstract: A LCD and the gate driving circuit thereof are disclosed. The gate driving circuit includes a shift register circuit and a shift register circuit and a level transition circuit connected with the shift register circuit. The level transition circuit generates clock signals, selection signals, and negative voltage reference signals for the shift register circuit. The clock signals, the selection signals, and the negative voltage reference signals are configured for driving the shift register circuit. A negative voltage value of the negative voltage reference signals (VSS) is larger than the negative voltage value of one of the clock signals or the selection signals. In this way, the TFTs of the shift register circuit own better turn-off capability so as to avoid malfunction.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: May 8, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Hua Zhang
  • Publication number: 20180122284
    Abstract: The present invention provides a compensation method of Mura phenomenon of a curved liquid crystal panel. First, obtaining image Mura compensation data of the curved liquid crystal panel according to a collected image of a camera, and the image Mura compensation data comprises: a Mura compensation value and a compensation point location corresponded with the Mura compensation value, and the compensation point location is a location of a compensation point in the collected image of the camera, and then implementing correction to the compensation point location in the obtained image Mura compensation data to acquire a compensation point location after correction, which is employed to replace the compensation point location in the image Mura compensation data to obtain plane Mura compensation data of the curved liquid crystal panel, and finally, implementing Mura compensation to the curved liquid crystal panel according to the plane Mura compensation data.
    Type: Application
    Filed: April 13, 2016
    Publication date: May 3, 2018
    Inventor: Hua Zhang
  • Publication number: 20180115226
    Abstract: A system includes an industrial machine that includes a motor and a motor bearing. The system also includes multiple acoustic sensors disposed adjacent the industrial machine. The system further includes multiple other sensors disposed adjacent the industrial machine. The system even further includes a controller programmed to receive noise signals representative of a noise made by the motor bearing acquired by the multiple acoustic sensors, to receive signals representative of operational conditions of the industrial machine, to analyze the noise signals to determine characteristics of the noise, to analyze the characteristics of the noise utilizing the operational conditions, to compare the characteristics of the noise to a plurality of models associated with different noises made by the motor bearing that are associated with a particular abnormal operation, and to select a model from the plurality of models that matches the characteristics of the noise.
    Type: Application
    Filed: October 25, 2016
    Publication date: April 26, 2018
    Inventors: Hua Zhang, David Terry Trayhan, JR., Iris Ziqin Hu
  • Patent number: 9951646
    Abstract: An on-line wash system for a compressor including: a nozzle including a flow passage for wash liquid, wherein the flow passage is configured to be coupled to a source of a wash liquid and includes a discharge outlet arranged to project the wash liquid into a stream of working fluid for the turbomachine; an electrode proximate to the flow passage of the nozzle, wherein the electrode is configured to form an electrical field sufficient to charge the wash liquid flowing through the passage and the charge applied to the wash liquid is of a first polarity, and a surface of the compressor charged with the first polarity, wherein the surface is exposed to the stream of working fluid and downstream of the nozzle.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: April 24, 2018
    Assignee: General Electric Company
    Inventors: Doug Scott Byrd, Gilbert Otto Kraemer, Hua Zhang, Jianmin Zhang, Valery Ivanovich Ponyavin
  • Publication number: 20180105665
    Abstract: A surface-modified polymer composition formed from an oligomeric or polymeric additive and a base polymer is disclosed. The surface-modified polymer provides non-fouling and/or non-thrombogenic properties. The composition is particularly useful in articles and materials for medical applications.
    Type: Application
    Filed: April 22, 2016
    Publication date: April 19, 2018
    Inventors: Roger W. Day, Hua Zhang, Umit G. Makal, Richard Woofter, Kiara Smith
  • Patent number: 9949215
    Abstract: Embodiments of the disclosure provide a method and apparatus for resource sharing for D2D and cellular communications in a multicell network. The method comprises steps of: acquiring CSI on channels relating to D2D pair and a plurality of cellular users that potentially share resources with the D2D pair; and determining D2D transmit powers of the D2D pair on a plurality of frequency bands allocated to the plurality of cellular users and cellular transmit powers of the plurality of cellular users based on the CSI, to improve throughput of the multicell network.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: April 17, 2018
    Assignee: NEC (China) Co., Ltd.
    Inventors: Chaofeng Li, Ming Lei, Jiaheng Wang, Daohua Zhu, Hua Zhang, Chunming Zhao
  • Publication number: 20180094549
    Abstract: A steam cycle system includes a heat recovery steam generator (HRSG) which receives exhaust gases, a steam turbine coupled to the HRSG which receives a first steam flow generated by the HRSG, and a condenser which condenses a second steam flow output by the steam turbine. The condenser includes a plurality of heat exchanger tubes, a fan, and a steam collection header. The system includes one or more sensors which measure one or more properties of the steam flow. The system includes a closed-loop controller communicatively coupled to the one or more sensors. The controller receives data from the one or more sensors, determines a flow rate of the second steam flow through the steam header using the one or more sensors, calculates whether the flow rate of the steam is within a threshold, and adjusts one or more operating parameters of the fan.
    Type: Application
    Filed: October 5, 2016
    Publication date: April 5, 2018
    Inventors: Hua Zhang, Iris Hu
  • Patent number: 9934738
    Abstract: The present invention provides a panel signal control circuit, a display panel and a display device. The panel signal control circuit comprises: a PWM IC and a level shift IC, and the panel signal control circuit comprises further comprises: a Vin voltage divider circuit; one end of the Vin voltage divider circuit is coupled to an input port of an input working voltage Vin of the PWM IC, and the other end of the Vin voltage divider circuit is grounded; a voltage divider interface of the Vin voltage divider circuit is coupled to a pin a of the Level shift IC, and the pin a is a voltage monitor pin, and as the voltage of the pin a is lower than an activation voltage threshold, respective output clock CK pins of the Level shift IC output sync signals of an output working voltage VGH of the PWM IC.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: April 3, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Hua Zhang
  • Patent number: 9932856
    Abstract: Embodiments of the present disclosure provide cooling systems for turbomachinery and methods of installation. In an embodiment, an apparatus of the present disclosure can include a ventilation conduit for routing a cooling air from a compressor of a power generation system to a turbine component of the power generation system; and a nozzle in fluid communication with the ventilation conduit, wherein the nozzle delivers water from a water supply into the ventilation conduit.
    Type: Grant
    Filed: November 22, 2014
    Date of Patent: April 3, 2018
    Assignee: General Electric Company
    Inventors: Hua Zhang, Douglas Scott Byrd, David Terry Trayhan, Jr.
  • Publication number: 20180086880
    Abstract: A preparing method of an aliphatic polycarbonate is provided to synthesize oligomer monomers by a transesterification reaction of carbonic acid dialkyl esters and aliphatic diols with accelerants in an atmosphere of a protective gas, and generate an aliphatic polycarbonate polymer by a polycondensation reaction of the oligomer monomers in a condition of high temperature and low pressure. According to the disclosure, environmentally friendly compounds with low boiling points and low costs are utilized as the accelerants to substitute the enzyme or acid-base catalysts to prepare aliphatic polycarbonate polymers in the prior art, and the cost is reduced; meanwhile, in the process of generating the aliphatic polycarbonate polymers, the accelerants can be removed from the reaction system along with the pressure reduced in the reaction system. The synthesis system is simple; moreover, the aliphatic polycarbonate obtained by the preparing method provided by the disclosure has merits such as superior colors.
    Type: Application
    Filed: September 30, 2017
    Publication date: March 29, 2018
    Inventors: Gongying WANG, Ziqing WANG, Xiangui YANG, Hua ZHANG, Jianguo LI, Shaoying LIU, Jie YAO
  • Patent number: 9930494
    Abstract: Location data is obtained from signals transmitted by a first plurality of mobile wireless devices in a wireless network, wherein the first plurality of mobile wireless devices are moving within a predefined space, and wherein the location data comprises a plurality of location data time points, each location data time point including a timestamp, a unique mobile wireless device identifier, and location information indicating where in the predefined space an associated mobile wireless device is located. For each mobile wireless device, location data time points are aggregated to generate a set of aggregated location data for each mobile wireless device, and the set of aggregated location data is analyzed to determine characteristics corresponding to time-dependent behavior and location-specific behavior of the corresponding mobile wireless device. A user of each corresponding mobile wireless device is classified into a category of a plurality of categories based on the determined characteristics.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: March 27, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Hao Liu, David Tang, Zhitao Shen, Hua Zhang, Vikram Kumaran
  • Publication number: 20180080846
    Abstract: A system includes a gas turbine enclosure and a robotic mobile hazardous gas detection device disposed within the gas turbine enclosure. The robotic mobile hazardous gas detection device includes one or more sensors configured to detect one or more parameters related to hazardous gas leakage within the gas turbine enclosure. The robotic mobile hazardous gas detection device is configured to move to different locations within the gas turbine enclosure to monitor for hazardous gas leakage.
    Type: Application
    Filed: September 20, 2016
    Publication date: March 22, 2018
    Inventors: Hua Zhang, Manuel Cardenas, JR.