Patents by Inventor Yuan Zhang

Yuan 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).

  • SIGNAL DRIVER SLEW RATE CONTROL
    Publication number: 20180102771
    Abstract: An apparatus includes a first circuit and a second circuit. The first circuit may be configured to generate a plurality of delayed signals each as a copy of an input signal shifted in time by a sequence of respective delays based on a control signal. At least two of the respective delays may have a different duration. The first circuit may also be configured to change a number of driver signals that are active during each delay in the sequence of respective delays based on the input signal and the plurality of delayed signals to control a slew rate of an output signal. The second circuit may be configured to drive the output signal in response to the driver signals.
    Type: Application
    Filed: December 7, 2017
    Publication date: April 12, 2018
    Inventors: Zhigang Hu, Hui Yu, Shaokang Wang, Yuan Zhang, Yue Yu
  • FLIPPABLE ELECTRICAL CONNECTOR
    Publication number: 20180090892
    Abstract: A receptacle connector assembly includes an outer housing and a terminal module. The terminals module includes an insulator having a base and a mating tongue extending from the base and equipped with a plurality of contacts and a shielding plate. The contacts include front contacting sections exposed upon the mating tongue and tail sections extending out of the base. The shielding plate is embedded within the mating tongue and includes a pair of rigid notches in two opposite lateral sides for locking to a pair of corresponding latches of a complementary plug connector. The outer housing is of an insulative moulding part or a metallic die cast, the terminal module is assembled in the outer housing, and thus a mating cavity is directly defined between the mating tongue and the outer housing.
    Type: Application
    Filed: November 20, 2017
    Publication date: March 29, 2018
    Inventors: Terrance F. Little, Chih-Pi Cheng, Wei-Hao Su, Cheng-Chi Yeh, Yuan Zhang, Stephen Sedio, Hendrikus P.G. Van der Steen
  • Dual-bed system for preventing boiler heating surface from being contaminated
    Patent number: 9927119
    Abstract: A dual-bed system for preventing a boiler heating surface from being contaminated comprises a fluidized bed, a cyclone separator, a coal ash distributor, an ash-coal mixer, a lower pyrolysis bed, a return feeder and a cleaner, wherein the cyclone separator is connected with the upper lateral side of the fluidized bed; the inlet end of the coal ash distributor; the two outlets of the coal ash distributor are respectively connected with the inlet of the return feeder and the inlet of the ash-coal mixer; the outlet of the ash-coal mixer is connected with the inlet of the lower pyrolysis bed; the return feeder close to the lower lateral side of the fluidized bed is connected with the inlet on the lower lateral side of the fluidized bed; and the outlet of the cleaner is connected with the inlet on the lower lateral side of the fluidized bed.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: March 27, 2018
    Assignee: DONGFANG ELECTRIC CORPORATION
    Inventors: Liyong Cao, Wei Fan, Qi Du, Pan Guo, Zhengning Liu, Yuan Zhang, Chunfei Zhang, Jiang Liu, Chunyun Hu, Xiaoguang Zhang, Yu Lei
  • STABLE TWO COMPONENT SPRAY FOAM COMPOSITIONS CONTAINING HYDROHALOOLEFIN PROPELLANT OR BLOWING AGENT
    Publication number: 20180079881
    Abstract: A formulation technology for low pressure two component polyurethane foam-funning compositions containing gaseous hydrohaloolefin blowing agents is described with improved storage stability and extended shelf-life. The “B”-side component of the formulations contain a gaseous hydrohaloolefin blowing agent and a polyol pre-mix, the polyol pre-mix comprising liquid blowing agent, polyol, and a catalyst containing at least one catalytic metal compound.
    Type: Application
    Filed: April 8, 2016
    Publication date: March 22, 2018
    Inventors: Jay Yuan Zhang, Timothy A Niemeyer
  • Flippable electrical connector
    Patent number: 9912111
    Abstract: A receptacle connector includes an insulative housing defining a base and a mating tongue extending from the base with a widen and thicken step structure formed around a root of the mating tongue near to the base, two rows of plate contacts disposed in the insulative housing with contacting sections exposed upon the mating tongue and in front of the step structure and categorized with signal contacts, power contacts and grounding contacts, and a metallic shielding plate disposed within a middle level of the mating tongue and occupying most portions of said mating tongue. The shielding plate defines a pair of immoveable and un-deflectable lateral edge sections in front of the step structure, each lateral edge section is configured to be adapted to be locked with a latch of a plug connector in a transverse direction.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: March 6, 2018
    Assignee: FOXCONN INTERCONNECT TECHNOLOGY LIMITED
    Inventors: Terrance F. Little, Chih-Pi Cheng, Chien-Ping Kao, Wei-Hao Su, An-Jen Yang, De-Cheng Zou, Chih-Hsien Chou, Yuan Zhang
  • Resource Reservation Mechanism for Overlay Networking
    Publication number: 20180063023
    Abstract: An approach is provided in which an information handling system establishes a resource reservation protocol (RSVP) session corresponding to a flow between a first entity and a second entity operating within a computer environment that implements a network virtualization overlay protocol. Once the RSVP session is established, the information handling system encapsulates data packets of the flow based on the network virtualization overlay protocol and, in turn, sends the encapsulated data packet over the computer network with a quality of service (QoS) assurance level that is based on the established RSVP session.
    Type: Application
    Filed: August 31, 2016
    Publication date: March 1, 2018
    Inventors: Guo Xing He, Zi Jin Tao, Lu Zhang, Yuan Yuan Zhang
  • METHOD AND SYSTEM FOR PROVIDING QUERY SUGGESTIONS
    Publication number: 20180060339
    Abstract: Methods, systems and programing for providing query suggestions. In one example, a search query is received from a user. At least one rewritten search query is generated by replacing at least some text in the search query with a synonym of the at least some text. The synonym of the at least some text is obtained based on a plurality of previously submitted search queries. A plurality of query suggestions is obtained based on the search query and the at least one rewritten search query. At least a portion of the plurality of query suggestions is provided to the user.
    Type: Application
    Filed: August 29, 2016
    Publication date: March 1, 2018
    Inventors: Zhongqiang Chen, Yuan Zhang, Shenhong Zhu
  • FAST-RESPONSE HYBRID LOCK DETECTOR
    Publication number: 20180054208
    Abstract: An apparatus comprising an analog circuit and a digital circuit. The analog circuit may be configured to (i) receive pulses generated in response to a comparison of a feedback signal and a reference signal, (ii) filter the pulses when a frequency of the feedback signal is close to a frequency of the reference signal and (iii) generate an enable signal in response to the filtered pulses. The digital circuit may be configured to generate an output signal representing a lock status between (i) the feedback signal and (ii) the reference signal. The lock status may be determined (a) during a decision window based on a number of pulses of the reference signal and (b) when the enable signal is active (B) the decision window may be repeated periodically until the enable signal is not active.
    Type: Application
    Filed: October 31, 2017
    Publication date: February 22, 2018
    Inventors: Xinqing Chen, HaiQi Liu, Yuan Zhang
  • Display method, device and computer-readable medium
    Patent number: 9898982
    Abstract: A display method, device and computer-readable medium are provided. The method includes: detecting whether there is any change in a displayed content for the display; and controlling the display to alternately update display data corresponding to a first portion and a second portion of display units in each row if it is detected that the displayed content does not change, wherein the display unit comprises n rows of pixels, and wherein n is a positive integer. The first portion of the display units comprises i first cells, the second portion of the display units comprises j second cells, and the first cells are alternate with the second cells, wherein i and j are positive integers. Moreover, the first cell comprises p successive pixels, and the second cell comprises q successive pixels, wherein p and q are greater than 1.
    Type: Grant
    Filed: March 13, 2016
    Date of Patent: February 20, 2018
    Assignee: XIAOMI INC.
    Inventors: Guosheng Li, Yuan Zhang, Jun Tao
  • Hybrid connector for both electrical and optical transmission
    Patent number: 9891386
    Abstract: A hybrid plug connector including an insulative housing defining a cavity to receive an optical fiber assembly therein, and a plurality of passageways to receive a plurality of terminals therein. A printed circuit board is located behind the terminals and connected to the terminals. An electrical cable is mounted to a rear portion of the circuit board. The whole optical fiber assembly is received within the housing and is somewhat back and forth moveable along a front-to-back direction for buffering for compliantly coupling with another optical fiber assembly built within the complementary receptacle connector when the plug connector is inserted into the complementary receptacle connector. A lens module is formed on the optical fiber assembly for collimating the light beams from the optical fibers.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: February 13, 2018
    Assignee: FOXCONN INTERCONNECT TECHNOLOGY LIMITED
    Inventors: Terrance F. Little, Yuan Zhang, An-Jen Yang, Paul Chen
  • ELECTRICAL CONNECTOR ASSEMBLY
    Publication number: 20180034211
    Abstract: An electrical connector assembly includes a receptacle connector and a plug connector. The receptacle connector includes an insulative housing, and a plurality of contacts received in the housing. The plug connector includes an enclosure, and a printed circuit board enclosed in the enclosure with an end for being inserted into the insulative housing to mate with the contacts. Wherein at least one pair of slots are formed on one of the receptacle and the plug connector, and at least a corresponding pair of ribs are formed on the other to mate with the at least one pair of slots for not only providing an anti-mismating function but also a restriction function for holding the plug connector in position with respective to the receptacle.
    Type: Application
    Filed: July 26, 2017
    Publication date: February 1, 2018
    Inventors: TERRANCE F. LITTLE, JIM ZHAO, YUAN ZHANG, AN-JEN YANG, CHIH-HSIEN CHOU
  • Method and device for reducing display brightness
    Patent number: 9858885
    Abstract: The present disclosure discloses a method and device for reducing display brightness, and belongs to the technical field of display. Aspects of the disclosure provide a method for reducing display brightness. The method includes acquiring a first corresponding relationship between pixel values and voltages for reducing display brightness. The first corresponding relationship is determined based on a second corresponding relationship between pixel values and voltages and a ratio for brightness reduction. Further, the method includes determining a voltage corresponding to a pixel value of a pixel to be displayed based on the first corresponding relationship and at a scanning moment corresponding to the pixel, outputting the determined voltage to a data line corresponding to the pixel in a liquid crystal display screen.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: January 2, 2018
    Assignee: Xiaomi Inc.
    Inventors: Guosheng Li, Anyu Liu, Yuan Zhang
  • Dogleg Severity Estimator for Point-The-Bit Rotary Steerable Systems
    Publication number: 20170370152
    Abstract: An illustrative dogleg severity (DLS) estimation method includes: retrieving dimensions of steering assembly; determining an initial DLS estimate; using the DLS estimate in combination with the steering assembly dimensions to determine node displacements for a shaft portion of the steering assembly; deriving a bit side force from the node displacements while accounting for elastic bending in a housing portion of the steering assembly; performing a DLS calculation based in part on the bit side force; adjusting the DLS estimate if the DLS calculation does not match; repeating said using, deriving, performing, and adjusting until a match is achieved; and storing the DLS estimate on a nontransient information storage medium.
    Type: Application
    Filed: December 14, 2015
    Publication date: December 28, 2017
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Robello Samuel, Yuan Zhang
  • Air-filled patch antenna
    Patent number: 9853358
    Abstract: Disclosed is an air-filled patch antenna, comprising: a ground plane; a patch arranged to be in parallel to the ground plane; four inherent metal legs extending from the patch perpendicularly, wherein each of distal ends of the four legs is electrically and mechanically connected to the ground plane; and a feeding structure configured to provide a signal interface to the antenna.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: December 26, 2017
    Assignee: THE CHINESE UNIVERSITY OF HONG KONG
    Inventors: Ke-Li Wu, Zhen-Yuan Zhang, Dacheng Wei
  • Signal driver slew rate control
    Patent number: 9853632
    Abstract: An apparatus includes a first circuit and a second circuit. The first circuit may be configured to (i) generate a plurality of delayed signals each as a copy of an input signal shifted in time by a sequence of respective delays based on a control signal and (ii) change a number of driver signals that are active during each delay in the sequence of respective delays based on the input signal and the plurality of delayed signals to control a slew rate of an output signal. The second circuit may be configured to drive the output signal in response to the driver signals.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: December 26, 2017
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventors: Zhigang Hu, Hui Yu, Shaokang Wang, Yuan Zhang, Yue Yu
  • Flippable electrical connector
    Patent number: 9843148
    Abstract: A receptacle connector includes a housing defining a base and a mating tongue forwardly extending therefrom, a first row of contacts disposed in the housing with contacting sections and surface mount type tail sections for mounting on a PCB, a second row of contacts disposed in the housing with contacting sections and through hole type tail sections for mounting in the PCB; a metallic shield including a capsular segment surrounding the mating tongue to define a mating cavity and a rear wall covering a rear face of the base to surrounding the surface mount type tail sections and a lower bracket attached to the metallic shielding. The lower bracket is located upon a bottom side of the shield and includes a bottom wall, two sidewalls and a rear wall commonly surrounding the through hole type tail sections.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: December 12, 2017
    Assignee: FOXCONN INTERCONNECT TECHNOLOGY LIMITED
    Inventors: Terrance F. Little, Chih-Pi Cheng, Wei-Hao Su, Cheng-Chi Yeh, Yuan Zhang, Stephen Sedio, Hendrikus P. G. Van der Steen
  • Fast-response hybrid lock detector
    Patent number: 9831882
    Abstract: The invention concerns an apparatus comprising an analog circuit and a digital circuit. The analog circuit may be configured to generate an enable signal in response to (i) a comparison of a width of an up pulse and a pre-determined width and (ii) a comparison of a width of a down pulse and the pre-determined width. The up pulse and the down pulse may be generated in response to a comparison of a feedback signal and a reference signal. The enable signal may be active when both the comparisons are within a pre-determined threshold. The digital circuit may be configured to generate an output signal representing a lock status between (i) the feedback signal and (ii) the reference signal. The lock status may be determined (a) during a decision window based on a number of pulses of the reference signal and (b) when the enable signal is active.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: November 28, 2017
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventors: Xinqing Chen, HaiQi Liu, Yuan Zhang
  • Devices and methods for monitoring terminal devices
    Patent number: 9825804
    Abstract: Devices and methods are provided for monitoring terminal devices. For example, one or more first terminal devices are scanned; one or more first identifications of the first terminal devices are recorded; a first list including the first identifications of the first terminal devices is generated; one or more second identifications of one or more second terminal devices are retrieved from a stored second list, the second terminal devices being scanned previously; the second identifications and the first identifications are compared; and in response to the second identifications being different from the first identifications, an alarm message is output.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: November 21, 2017
    Assignee: Tencent Technology (Shenzhen) Company Limited
    Inventors: Shouqiang Qin, Yuan Zhang
  • METHOD AND SYSTEM FOR PROVIDING QUERY SUGGESTIONS
    Publication number: 20170316023
    Abstract: The present teaching relates to providing query suggestions. A query is received from a user. A plurality of suggestions with respect to the query are obtained. One or more garbled suggestions are identified from the plurality of suggestions. One or more identified garbled suggestions are removed from the plurality of suggestions. The plurality of suggestions with removed one or more garbled suggestions are provided to the user in response to the query.
    Type: Application
    Filed: May 2, 2016
    Publication date: November 2, 2017
    Inventors: Yuan Zhang, Zhongqiang Chen, Shenhong Zhu
  • MULTICAST EXCHANGE OPTICAL SWITCH
    Publication number: 20170315300
    Abstract: A multicast exchange optical switch includes an input port device including M input ports, an output port device including N output ports, a diffractive beam splitter, an optical focusing component, and a 1×N array of reflective devices. The diffractive beam splitter diffracts each input signal beam from the input ports into at least N directions. The optical focusing component includes a first focusing lens and a second focusing lens. The first focusing lens focuses sub-beams from the respective input ports along the Y-axis direction having the same diffraction order. The second focusing lens focuses on the X-axis direction sub-beams from the same input port having different diffraction orders. The 1×N array of reflective devices is provided at the focal plane of the optical focusing component and each reflective device reflects a sub-beam from any one of the input ports to any one of the output ports.
    Type: Application
    Filed: December 18, 2014
    Publication date: November 2, 2017
    Applicant: Accelink Technologies Co., Ltd.
    Inventors: Qianggao HU, Liping SUN, Bo ZHANG, Leilei HU, Liu YANG, Yuan ZHANG, Fei LIANG