Patents by Inventor Qian Ouyang

Qian Ouyang 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: 10851195
    Abstract: A polyurethane (meth)acrylate oligomer, having a tri-block symmetric structure BAB, comprises a polyether central block A linked by two urethane bonds to respectively two terminal hydrophobic blocs B based on hydrophobic polyester oligomers having a terminal (meth)acryloyloxy alkylene group. A curable composition (1k) comprises the oligomer and may be used for soft touch coatings in electronics, consumer goods and vehicle manufacture, as the resulting cured soft touch coating.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: December 1, 2020
    Assignee: Arkema France
    Inventors: Aibin Shi, Liusheng Ouyang, Zheng Shi, Qian T. Yang, Mingxin Fan
  • Publication number: 20200355671
    Abstract: The invention generally relates to a sample dispenser including an internal standard and methods of use thereof.
    Type: Application
    Filed: July 23, 2020
    Publication date: November 12, 2020
    Inventors: Zheng Ouyang, He Wang, Nicholas E. Manicke, Robert Graham Cooks, Qian Yang, Jiangjiang Liu
  • Patent number: 10790737
    Abstract: A current threshold regulation method is used in a switching converter with a tank element and a transistor. The current threshold regulation method includes: detecting whether the input voltage is lower than an input under voltage threshold and generating an input under voltage indication signal; detecting whether the output voltage is lower than an output under voltage threshold and generating an output under voltage indication signal; generating a current threshold based on the input under voltage indication signal and output under voltage indication signal; comparing a current flowing though the tank element with the current threshold and generating a current comparison signal; and generating a control signal based on the current comparison signal to control the transistor.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: September 29, 2020
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventors: Suhua Luo, Qian Ouyang, Wei Yuan, Pengpeng Ma
  • Patent number: 10782718
    Abstract: A method for automatically testing a voltage regulator, including: providing an auto-test setting to a test master, wherein the auto-test setting specifies an auto-sweep setting and a loop comprising an ordered set of serial command frames; producing, in the test master, a test suite comprising a plurality of serial command frames by executing the loop multiple times according to the auto-sweep setting until an array of a preset variable corresponding to the auto-sweep setting is traversed, wherein the preset variable is changed in each iteration of the loop; sequentially transmitting every serial command frame to the voltage regulator; and receiving every resulting behavior of the voltage regulator when operated in accordance with the every serial command frame.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: September 22, 2020
    Assignee: Hangzhou MPS Semiconductor Technology Ltd.
    Inventors: Wangmiao Hu, Lijie Jiang, Qian Ouyang, Qingqing Zheng, Binci Xu, Jinghai Zhou, Eric Yang
  • Patent number: 10762216
    Abstract: Methods, systems and storage media are disclosed for enhanced system boot processing that authenticates boot code based on biometric information of the user before loading the boot code to system memory. For at least some embodiments, the bio-metric authentication augments authentication of boot code based on a unique platform identifier. The enhanced boot code authentication occurs before loading of the operating system, and may be performed during a Unified Extensible Firmware Interface (UEFI) boot sequence. Other embodiments are described and claimed.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: September 1, 2020
    Assignee: Intel Corporation
    Inventors: Qian Ouyang, Jian J. Wang, Vincent J. Zimmer, Michael A. Rothman, Chao B. Zhang
  • Patent number: 10761083
    Abstract: The invention generally relates to a sample dispenser including an internal standard and methods of use thereof.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: September 1, 2020
    Assignee: Purdue Research Foundation
    Inventors: Zheng Ouyang, He Wang, Nicholas E. Manicke, Robert Graham Cooks, Qian Yang, Jiangjiang Liu
  • Patent number: 10725938
    Abstract: An auto-loop regulation system for a voltage regulator receives a plurality of pre-determined loop parameters through an interactive computing equipment, and the voltage regulator operates according to the plurality of pre-determined loop parameters, wherein the interactive computing equipment regulates at least one of the loop parameters automatically in real time according to an online loop value when the voltage regulator is operating online, and the interactive computing equipment keeps regulating the loop parameters until the online value of the voltage regulator matches with a target value.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: July 28, 2020
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Lijie Jiang, Xiaokang Wu, Suhua Luo, Qian Ouyang
  • Patent number: 10620677
    Abstract: An autonomous power system has a voltage regulator which converts an input voltage to an output voltage according to a reference voltage. A control method for the power system: receiving a voltage identification code sent by a processor; providing an autonomous voltage identification code when the voltage identification sent by the processor keeps constant during a first preset duration, wherein the autonomous voltage identification code can be updated self-adaptively; providing a reference voltage according to a sum of the voltage identification code and the autonomous identification code; and adjusting the output voltage according to the reference voltage.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: April 14, 2020
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventors: Reagan Luo, Qian Ouyang, Lijie Jiang, Marvin Ma, Xiaokang Wu
  • Patent number: 10468973
    Abstract: An over current protecting circuit, used with a switching converter having a switch, having: a current limiting circuit, configured to receive a limit indicating signal and to provide an on time signal to control an on time period of the switch based on the limit indicating signal, wherein if the limit indicating signal indicates a current flowing through the switch of the switching converter is larger than a limiting threshold, the on time period of a next switching cycle of the switch is subtracted with a first period, otherwise, the on time period of the switch of the next switching cycle is added with a second period; wherein a maximum on time period of the switch is fixed to be an on time reference.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: November 5, 2019
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventors: Xiaokang Wu, Qian Ouyang, Yu Zhang, Xiaogang Wei
  • Publication number: 20190334429
    Abstract: A current threshold regulation method is used in a switching converter with a tank element and a transistor. The current threshold regulation method includes: detecting whether the input voltage is lower than an input under voltage threshold and generating an input under voltage indication signal; detecting whether the output voltage is lower than an output under voltage threshold and generating an output under voltage indication signal; generating a current threshold based on the input under voltage indication signal and output under voltage indication signal; comparing a current flowing though the tank element with the current threshold and generating a current comparison signal; and generating a control signal based on the current comparison signal to control the transistor.
    Type: Application
    Filed: April 10, 2019
    Publication date: October 31, 2019
    Inventors: Suhua Luo, Qian Ouyang, Wei Yuan, Pengpeng Ma
  • Patent number: 10425013
    Abstract: A resonant converter highly improves light load efficiency. The resonant converter blocks control signals which are used to control power switches in an input power stage and an output stage in light load condition until an output voltage drops to a preset value. The input power stage and the output stage are coupled by way of a resonant net and a transformer.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: September 24, 2019
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventor: Qian Ouyang
  • Patent number: 10348115
    Abstract: A system has a processor, a battery charging circuit, a voltage regulating circuit and a control circuit. The control circuit provides digitalized feedback signals representative of circuit parameters of the battery charging circuit and circuit parameters of the voltage regulating circuit to the processor and receives a first information and a second information from the processor. The processor is able to adjust its operating states in response to the digitalized feedback signals. The control circuit controls the battery charging circuit in response to the circuit parameters of the battery charging circuit and the first information received from the processor, and the control circuit controls the voltage regulating circuit in response to the circuit parameters of the voltage regulating circuit and the second information received from the processor.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: July 9, 2019
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventor: Qian Ouyang
  • Patent number: 10348197
    Abstract: A DC-DC converter with transient control. The DC-DC converter includes a power switching circuit, a current to voltage converter, a PI circuit 403, a voltage to current converter 404 and a logic and control circuit 405. The DC-DC converter obtains the transient information of a current flowing through the power switching circuit, to slow down the variation of the output voltage, so as to eliminate the overshot issue.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: July 9, 2019
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Chao Liu, Lijie Jiang, Qian Ouyang, Xiaokang Wu
  • Publication number: 20190129868
    Abstract: An auto-loop regulation system for a voltage regulator receives a plurality of pre-determined loop parameters through an interactive computing equipment, and the voltage regulator operates according to the plurality of pre-determined loop parameters, wherein the interactive computing equipment regulates at least one of the loop parameters automatically in real time according to an online loop value when the voltage regulator is operating online, and the interactive computing equipment keeps regulating the loop parameters until the online value of the voltage regulator matches with a target value.
    Type: Application
    Filed: October 29, 2018
    Publication date: May 2, 2019
    Inventors: Lijie Jiang, Xiaokang Wu, Suhua Luo, Qian Ouyang
  • Patent number: 10263528
    Abstract: A resonant converter with adaptive switching frequency operates continuously at best efficiency point. A power switch at primary side is turned off when a current flowing through a corresponding output power stage at secondary side falls to zero.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: April 16, 2019
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventor: Qian Ouyang
  • Publication number: 20190068049
    Abstract: An over current protecting circuit, used with a switching converter having a switch, having: a current limiting circuit, configured to receive a limit indicating signal and to provide an on time signal to control an on time period of the switch based on the limit indicating signal, wherein if the limit indicating signal indicates a current flowing through the switch of the switching converter is larger than a limiting threshold, the on time period of a next switching cycle of the switch is subtracted with a first period, otherwise, the on time period of the switch of the next switching cycle is added with a second period; wherein a maximum on time period of the switch is fixed to be an on time reference.
    Type: Application
    Filed: August 14, 2018
    Publication date: February 28, 2019
    Inventors: Xiaokang Wu, Qian Ouyang, Yu Zhang, Xiaogang Wei
  • Patent number: 10186975
    Abstract: A resonant converter adopts adaptive on-time control to provide better transient response. When the output voltage of the resonant converter varies, the on-time length of a power switch in power stages is adjusted, so that the switching frequency and the gain are regulated and optimized.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: January 22, 2019
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventor: Qian Ouyang
  • Publication number: 20180356848
    Abstract: A method for automatically testing a voltage regulator, including: providing an auto-test setting to a test master, wherein the auto-test setting specifies an auto-sweep setting and a loop comprising an ordered set of serial command frames; producing, in the test master, a test suite comprising a plurality of serial command frames by executing the loop multiple times according to the auto-sweep setting until an array of a preset variable corresponding to the auto-sweep setting is traversed, wherein the preset variable is changed in each iteration of the loop; sequentially transmitting every serial command frame to the voltage regulator; and receiving every resulting behavior of the voltage regulator when operated in accordance with the every serial command frame.
    Type: Application
    Filed: June 6, 2018
    Publication date: December 13, 2018
    Inventors: Wangmiao Hu, Lijie Jiang, Qian Ouyang, Qingqing Zheng, Binci Xu, Jinghai Zhou, Eric Yang
  • Patent number: 10110037
    Abstract: A battery charging circuit receives an input current, and provides a system voltage and a charging current to charge a battery. A control circuit used to control the battery charging circuit has a charging current control loop providing a compensation signal, an inductor current control loop providing a first loop control signal, and a system voltage control loop providing a second loop control signal. The control circuit provides an inductor current reference signal based on the compensation signal and a designed maximum input current level. And the control circuit provides a control signal based on the first loop control signal the second loop control signal to control the battery charging circuit.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: October 23, 2018
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventor: Qian Ouyang
  • Publication number: 20180262118
    Abstract: A resonant converter highly improves light load efficiency. The resonant converter blocks control signals which are used to control power switches in an input power stage and an output stage in light load condition until an output voltage drops to a preset value. The input power stage and the output stage are coupled by way of a resonant net and a transformer.
    Type: Application
    Filed: February 15, 2018
    Publication date: September 13, 2018
    Inventor: Qian Ouyang