Patents by Inventor Xiaobin Yuan

Xiaobin Yuan 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).

  • Patent number: 11953379
    Abstract: A live detection system, a thermal infrared (IR) imager and a method for power grid equipment are provided. The system includes an environmental parameter module for acquiring environmental temperature, humidity and wind speed data; a ranging module for measuring a linear distance to the power grid equipment; an equipment type recognition module for acquiring an image of the power grid equipment, and recognizing a type of the power grid equipment; an equipment material determination module for determining a material type of the power grid equipment; an emissivity setting module for setting an emissivity; an temperature measurement module for obtaining a temperature of the power grid equipment by focusing on positions of the power grid equipment which need temperature measurement; and a report generation module for selecting a corresponding diagnostic model, displaying a temperature measurement position and a temperature value, drawing a conclusion, and generating a report.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: April 9, 2024
    Assignees: State Grid Shandong Electric Power Research Institute, State Grid Corporation of China
    Inventors: Rong Liu, Hui Liu, Qinghe Shen, Jinxia Yao, Haiyan Yuan, Bo Yang, Xiaobin Sun, Chao Gu, Ran Jia, Yang Zhang, Chao Zhou, Chuanbin Liu
  • Patent number: 11957023
    Abstract: A light-emitting diode display panel, a manufacturing method thereof, and an organic light-emitting diode display device are provided. The light-emitting diode display panel includes: a base substrate including a display region and a peripheral region surrounding the display region; a plurality of sub-pixels located in the display region and located at a side of the base substrate; a color-resistance layer located at a side of a second electrode in the sub-pixel away from the base substrate; and a light-blocking structure located in the peripheral region and being an annular structure surrounding the plurality of sub-pixels. The light-blocking structure includes a first light-blocking structure and a second light-blocking structure. The first light-blocking structure includes at least one interval extending in a direction from the display region pointing to the peripheral region. The second light-blocking structure at least fully fills the interval.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: April 9, 2024
    Inventors: Dongsheng Li, Kuanta Huang, Shengji Yang, Pengcheng Lu, Yunlong Li, Qing Wang, Yongfa Dong, Xiaobin Shen, Hui Tong, Xiong Yuan, Yu Wang, Xiaochuan Chen
  • Patent number: 11334110
    Abstract: In some examples, a circuit can include a first buffer circuit that can be configured to receive a first clock signal and a first output voltage. The first buffer circuit can be configured to operate in a first voltage domain based on the first output voltage. The circuit can include a second buffer circuit configured to receive a second clock signal, the second buffer circuit being configured to operate in a second voltage domain based on the second output voltage. The first voltage domain can be different from the second voltage domain. In some examples, one of the first and second buffer circuits can be configured to provide one of the first and second clock signals as a clock output signal at a clock output terminal in response to a clock enable signal.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: May 17, 2022
    Assignee: CADENCE DESIGN SYSTEMS, INC.
    Inventors: Xiaobin Yuan, Aida Varzaghani, Irina Gavshina, Mouna Safi-Harab
  • Patent number: 11323115
    Abstract: A high-speed multiplexor comprises a set of differential input pairs to receive and mix a set of differential input signals at a differential output node pair. The high-speed multiplexer further comprises an active inductive load pair driven by the input stage using the mixed set of differential input signals. Each active inductive load comprises a p-channel field effect transistor (pFET) device connected to one of the differential output node pairs and a resistor connected between a gate node and a drain node of the pFET device. The multiplexer further comprises a first cross-coupling capacitor connected between the gate node of a first inductive load and a second output node of the differential output node pair and a second cross-coupling capacitor connected between the gate node of a second inductive load and a first output node of the differential output node pair.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: May 3, 2022
    Assignee: Cadence Design Systems, Inc.
    Inventors: Xiaobin Yuan, Dimitrios Loizos, Varun Joshi
  • Patent number: 10998720
    Abstract: An Electro-Static Discharge (ESD) protection circuit is disclosed. In some implementations, the ESD protection circuit includes a first ESD diode, a second ESD diode, a passive equalization network and a programmable resistor network. The first ESD diode is coupled to the passive equalization network. The programmable resistor network is coupled between the passive equalization network and the second ESD diode. The programmable resistor network can be programmed to place the ESD protection circuit in one of a plurality of receiver modes based on a type of a transmitter from which the receiver is receiving signals.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: May 4, 2021
    Assignee: QUALCOMM INCORPORATED
    Inventors: Xiaobin Yuan, Carrie Ellen Cox, Joseph Natonio, Siqi Fan
  • Patent number: 10944397
    Abstract: The present embodiments relate generally to data communications, and more particularly to systems including high-speed serializer-deserializer circuits having TCOILs. One or more embodiments are directed to a four-terminal TCOIL structure that consumes the same amount of area on a chip as a traditional three-terminal structure, while providing more bandwidth and less reflection and group delay variation.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: March 9, 2021
    Assignee: Cadence Design Systems, Inc.
    Inventors: Xiaobin Yuan, Dimitri Loizos, Hiu Ming Lam, Mouna Safi-Harab
  • Patent number: 10892743
    Abstract: A circuit includes a first node, a first inverter connected to the first node and a second node. A variable resistive element is connected to the second node and a third node. A first switch is connected to the second node, a first capacitive element is connected in series with the first switch and the third node, a second switch connected to the second node, a second capacitive element is connected in series with the second switch and the third node, and a second inverter is connected to the third node and a fourth node.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: January 12, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Mangal Prasad, Marshall D. Tiner, Hung H. Tran, Xiaobin Yuan
  • Patent number: 10396769
    Abstract: Various clock frequency dividers are disclosed. Each frequency divider includes cascaded flip-flops and a feedback logic gate. First data inputs of the flip-flops are for propagating logic values along the cascaded flip-flops and the feedback gate for generating valid states of a sequence in response to a clock signal. Each frequency divider includes an invalid state elimination circuit configured to detect an invalid state at the outputs of the flip-flops and change it into a valid state in response to the clock signal. In some implementations, the invalid state elimination circuit includes a NOR gate to detect an all-zero invalid state and generate a control signal to cause the flip-flops to output logic values associated with a valid state or to cause a multiplexer to introduce a logic value associated with a valid state. In other implementations, the invalid state elimination circuit instead includes an AND gate to detect an all-ones invalid state.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: August 27, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Mangal Prasad, Victor Git-Han Moy, Xiaobin Yuan, Anirban Banerjee
  • Publication number: 20190190506
    Abstract: A circuit includes a first node, a first inverter connected to the first node and a second node. A variable resistive element is connected to the second node and a third node. A first switch is connected to the second node, a first capacitive element is connected in series with the first switch and the third node, a second switch connected to the second node, a second capacitive element is connected in series with the second switch and the third node, and a second inverter is connected to the third node and a fourth node.
    Type: Application
    Filed: February 25, 2019
    Publication date: June 20, 2019
    Inventors: Mangal Prasad, Marshall D. Tiner, Hung H. Tran, Xiaobin Yuan
  • Patent number: 10291217
    Abstract: A circuit includes a first node, a first inverter connected to the first node and a second node. A variable resistive element is connected to the second node and a third node. A first switch is connected to the second node, a first capacitive element is connected in series with the first switch and the third node, a second switch connected to the second node, a second capacitive element is connected in series with the second switch and the third node, and a second inverter is connected to the third node and a fourth node.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: May 14, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Mangal Prasad, Marshall D. Tiner, Hung H. Tran, Xiaobin Yuan
  • Publication number: 20190123551
    Abstract: An Electro-Static Discharge (ESD) protection circuit is disclosed. In some implementations, the ESD protection circuit includes a first ESD diode, a second ESD diode, a passive equalization network and a programmable resistor network. The first ESD diode is coupled to the passive equalization network. The programmable resistor network is coupled between the passive equalization network and the second ESD diode. The programmable resistor network can be programmed to place the ESD protection circuit in one of a plurality of receiver modes based on a type of a transmitter from which the receiver is receiving signals.
    Type: Application
    Filed: October 19, 2017
    Publication date: April 25, 2019
    Inventors: Xiaobin YUAN, Carrie Ellen COX, Joseph NATONIO, Siqi FAN
  • Publication number: 20190115908
    Abstract: Various clock frequency dividers are disclosed. Each frequency divider includes cascaded flip-flops and a feedback logic gate. First data inputs of the flip-flops are for propagating logic values along the cascaded flip-flops and the feedback gate for generating valid states of a sequence in response to a clock signal. Each frequency divider includes an invalid state elimination circuit configured to detect an invalid state at the outputs of the flip-flops and change it into a valid state in response to the clock signal. In some implementations, the invalid state elimination circuit includes a NOR gate to detect an all-zero invalid state and generate a control signal to cause the flip-flops to output logic values associated with a valid state or to cause a multiplexer to introduce a logic value associated with a valid state. In other implementations, the invalid state elimination circuit instead includes an AND gate to detect an all-ones invalid state.
    Type: Application
    Filed: October 18, 2017
    Publication date: April 18, 2019
    Inventors: Mangal Prasad, Victor Git-Han Moy, Xiaobin Yuan, Anirban Banerjee
  • Patent number: 10243531
    Abstract: A differential signal processing circuit includes a local common mode voltage control circuit for controlling a common mode voltage of an output differential signal generated by the differential signal processing circuit based on an external common mode control current generated by an external common mode voltage control circuit. The differential signal processing circuit, which may be configured as a variable gain amplifier (VGA) or a continuous time linear equalizer (CTLE), includes a pair of load devices, a pair of input transistors, and a pair of current source transistors coupled via separate paths between upper and lower voltage rails. The external control circuit includes a replica circuit including a replica load device, a replica input transistor, and a replica current source transistor. The external control circuit sets the replica common mode voltage to a target using a current, wherein the external common mode control current is based on that current.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: March 26, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Pradeep Thiagarajan, Xiaobin Yuan, Todd Morgan Rasmus
  • Patent number: 10236344
    Abstract: A tunnel field effect transistor (TFET) including a first doped source region for a first type TFET or a second doped source region for a second type TFET; a second doped drain region for the first type TFET or a first doped drain region for the second type TFET; a body region that is either intrinsic or doped, with a doping concentration less than that of the first or second source region, separating the first or second source from the first or second drain regions; a self-aligned etch cavity separating the first or second doped source and drain regions; a thin epitaxial channel region that is grown within the self-aligned etch cavity, covering at least the first or the second source region; a replacement gate stack comprising a high-k gate dielectric and one or a combination of metals and polysilicon; and sidewall spacers adjacent to the replacement gate stack.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: March 19, 2019
    Assignee: International Business Machines Corporation
    Inventors: Emre Alptekin, Hung H. Tran, Reinaldo A. Vega, Xiaobin Yuan
  • Publication number: 20190081604
    Abstract: A differential signal processing circuit includes a local common mode voltage control circuit for controlling a common mode voltage of an output differential signal generated by the differential signal processing circuit based on an external common mode control current generated by an external common mode voltage control circuit. The differential signal processing circuit, which may be configured as a variable gain amplifier (VGA) or a continuous time linear equalizer (CTLE), includes a pair of load devices, a pair of input transistors, and a pair of current source transistors coupled via separate paths between upper and lower voltage rails. The external control circuit includes a replica circuit including a replica load device, a replica input transistor, and a replica current source transistor. The external control circuit sets the replica common mode voltage to a target using a current, wherein the external common mode control current is based on that current.
    Type: Application
    Filed: September 11, 2017
    Publication date: March 14, 2019
    Inventors: Pradeep Thiagarajan, Xiaobin Yuan, Todd Morgan Rasmus
  • Patent number: 10156882
    Abstract: An approach is provided in which a multi-core processor's first core determines whether it controls a system frequency that drives a group of cores included in the multi-core processor. When the first core is not controlling the system frequency for the group of cores, the first core uses an internal voltage control module to provide control information to the first core's programmable voltage regulator and, in turn, independently control the first core's voltage level. When the first core is controlling the system frequency, the first core receives voltage control information from pervasive control to control the first core's voltage levels.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: December 18, 2018
    Assignee: International Business Machines Corporation
    Inventors: Francesco A. Campisano, Alan J. Drake, Michael S. Floyd, David T. Hui, Pawel Owczarczyk, Marshall D. Tiner, Xiaobin Yuan
  • Patent number: 10152107
    Abstract: An approach is provided in which a multi-core processor's first core determines whether it controls a system frequency that drives a group of cores included in the multi-core processor. When the first core is not controlling the system frequency for the group of cores, the first core uses an internal voltage control module to provide control information to the first core's programmable voltage regulator and, in turn, independently control the first core's voltage level. When the first core is controlling the system frequency, the first core receives voltage control information from pervasive control to control the first core's voltage levels.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: December 11, 2018
    Assignee: International Business Machines Corporation
    Inventors: Francesco A. Campisano, Alan J. Drake, Michael S. Floyd, David T. Hui, Pawel Owczarczyk, Marshall D. Tiner, Xiaobin Yuan
  • Patent number: 10103226
    Abstract: A method of manufacturing a tunnel field effect transistor (TFET) includes forming on a substrate covered by an epitaxially grown source material a dummy gate stack surrounded by sidewall spacers; forming doped source and drain regions followed by forming an inter-layer dielectric surrounding the sidewall spacers; removing the dummy gate stack, etching a self-aligned cavity; epitaxially growing a thin channel region within the self-aligned etch cavity; conformally depositing gate dielectric and metal gate materials within the self-aligned etch cavity; and planarizing the top surface of the replacement metal gate stack to remove the residues of the gate dielectric and metal gate materials.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: October 16, 2018
    Assignee: International Business Machines Corporation
    Inventors: Reinaldo A. Vega, Emre Alptekin, Hung H. Tran, Xiaobin Yuan
  • Patent number: 10038468
    Abstract: Embodiments relate to peaking inductor array for a peaking control unit of a transceiver. An aspect includes the peaking inductor array comprising a plurality of cells connected in parallel, each cell comprising a respective active inductor. Another aspect includes each of the plurality of cells further comprising a decoupling capacitor.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: July 31, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Pier A. Francese, Mangal Prasad, Hung H. Tran, Xiaobin Yuan
  • Patent number: 10027297
    Abstract: One aspect of the present disclosure relates to a method for operating an amplifier, the amplifier including a variable resistor coupled between a source of a first input transistor and a source of a second input transistors, and a variable capacitor coupled between the source of the first input transistor and the source of the second input transistor. The method includes adjusting a resistance of the variable resistor to adjust a low-frequency gain of the amplifier, and adjusting a capacitance of the variable capacitor in an opposite direction as the adjustment to the resistance of the variable resistor.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: July 17, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Xiaobin Yuan, Jacob Lee Dahle, Mangal Prasad, Joseph Natonio