Patents by Inventor Lizhen Yu

Lizhen Yu 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: 20240097617
    Abstract: A method for installing a maximum power point tracking (MPPT) controller is provided. The method includes acquiring an occlusion area proportion of a photovoltaic string in a photovoltaic system, optimizing the occlusion area proportion to generate a target occlusion area proportion, determining a target position from the photovoltaic string according to the target occlusion area proportion, and installing the MPPT controller at the target position.
    Type: Application
    Filed: June 23, 2022
    Publication date: March 21, 2024
    Inventors: Lizhen Luo, Wenbo Peng, Ping Xiao, Dongming Zhao, Xiaolei Li, Xiangrui Yu, Wenzhe Zhu, Hu Gao
  • Patent number: 8091002
    Abstract: A method for providing ordered capture clocks to detect or locate faults within N clock domains and faults crossing any two clock domains in an integrated circuit or circuit assembly in scan-test or self-test mode, where N>1, each clock domain having one capture clock and a plurality of scan cells, each capture clock comprising a plurality of capture clock pulses; said method comprising: (a) generating and shifting-in N test stimuli to all said scan cells within said N clock domains in said integrated circuit or circuit assembly during a shift-in operation; (b) applying an ordered sequence of capture clocks to all said scan cells within said N clock domains, the ordered sequence of capture clocks comprising at least a plurality of capture clock pulses from two or more selected capture clocks placed in a sequential order such that all clock domains are never triggered simultaneously during a capture operation; and (c) analyzing output responses of all said scan cells to locate any faults therein.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: January 3, 2012
    Assignee: Syntest Technologies, Inc.
    Inventors: Laung-Terng Wang, Shianling Wu, Zhigang Jiang, Jinsong Liu, Hao-Jan Chao, Lizhen Yu, Feifei Zhao, Fangfang Li, Jianping Yan
  • Publication number: 20100287430
    Abstract: A method for providing ordered capture clocks to detect or locate faults within N clock domains and faults crossing any two clock domains in an integrated circuit or circuit assembly in scan-test or self-test mode, where N>1, each clock domain having one capture clock and a plurality of scan cells, each capture clock comprising a plurality of capture clock pulses; said method comprising: (a) generating and shifting-in N test stimuli to all said scan cells within said N clock domains in said integrated circuit or circuit assembly during a shift-in operation; (b) applying an ordered sequence of capture clocks to all said scan cells within said N clock domains, the ordered sequence of capture clocks comprising at least a plurality of capture clock pulses from two or more selected capture clocks placed in a sequential order such that all clock domains are never triggered simultaneously during a capture operation; and (c) analyzing output responses of all said scan cells to locate any faults therein.
    Type: Application
    Filed: June 9, 2010
    Publication date: November 11, 2010
    Applicant: Syntest Technologies, Inc.
    Inventors: Laung-Terng WANG, Shianling Wu, Zhigang Jiang, Jinsong Liu, Hao-Jan Chao, Lizhen Yu, Feifei Zhao, Fangfang Li, Jianping Yan
  • Patent number: 7783940
    Abstract: A memory redundancy reconfiguration for N base blocks associated with k redundant blocks. The data will be written into both base blocks and defect-free redundant blocks if the base blocks are defective; k multiplexers MUXRi each having N input signals (d0 to dN?1) capable of being connected to k input signals of the redundant blocks; N multiplexers MUXi each having k+1 input signals from k redundant blocks (R0 to Rk?1) and one base block (Ni), capable of being connected to N output signals (qi); and logic means associated with each multiplexer, to convert the input signals of the multiplexer to its output signal.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: August 24, 2010
    Assignee: Syntest Technologies, Inc.
    Inventors: Lizhen Yu, Shianling Wu, Zhigang Jiang, Laung-Terng Wang
  • Publication number: 20090303815
    Abstract: A memory redundancy reconfiguration for N base blocks associated with k redundant blocks. The data will be written into both base blocks and defect-free redundant blocks if the base blocks are defective; k multiplexers MUXRi each having N input signals (d0 to dN?1) capable of being connected to k input signals of the redundant blocks; N multiplexers MUXi each having k+1 input signals from k redundant blocks (R0 to Rk?1) and one base block (Ni), capable of being connected to N output signals (qi); and logic means associated with each multiplexer, to convert the input signals of the multiplexer to its output signal.
    Type: Application
    Filed: June 6, 2008
    Publication date: December 10, 2009
    Inventors: Lizhen Yu, Shianling Wu, Zhigang Jiang, Laung-Terng Wang