Patents by Inventor Ying Wei Jan

Ying Wei Jan 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).

  • Satellite attitude data fusion system and method thereof
    Patent number: 11046462
    Abstract: A satellite attitude data fusion system and method is disclosed, applicable to the earth satellite environment to estimate attitude data of the satellite. When the satellite attitude data fusion system of the present invention is used to perform the satellite attitude data fusion method, the first step is to perform a body rates quaternion attitude data processing operation. Then, the next step is to perform an attitude/rates data fusion processing operation, wherein an attitude data fusion algorithm module receives the first IAE result data from the first EKF, and the second JAE result data from the second EKF, and performs an attitude/rates data fusion algorithm in a subsystem level to evaluate an attitude estimation JAE performance.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: June 29, 2021
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Ying-Wei Jan, Ming-Yu Yeh, Wei-Ting Wei, Jia-Cheng Li, Yeong-Wei Wu
  • SATELLITE ATTITUDE DATA FUSION SYSTEM AND METHOD THEREOF
    Publication number: 20200122863
    Abstract: A satellite attitude data fusion system and method is disclosed, applicable to the earth satellite environment to estimate attitude data of the satellite. When the satellite attitude data fusion system of the present invention is used to perform the satellite attitude data fusion method, the first step is to perform a body rates quaternion attitude data processing operation. Then, the next step is to perform an attitude/rates data fusion processing operation, wherein an attitude data fusion algorithm module receives the first IAE result data from the first EKF, and the second JAE result data from the second EKF, and performs an attitude/rates data fusion algorithm in a subsystem level to evaluate an attitude estimation JAE performance.
    Type: Application
    Filed: December 27, 2018
    Publication date: April 23, 2020
    Inventors: Ying-Wei JAN, Ming-Yu YEH, Wei-Ting WEI, Jia-Cheng LI, Yeong-Wei WU
  • Circuit and method for controlling leakage current in random access memory devices
    Patent number: 8649236
    Abstract: A circuit for controlling leakage current in random access memory devices comprises a pre-charge equalization circuit. The pre-charge equalization circuit provides a pre-charge voltage to a pair of complementary bit lines of a memory cell of a random access memory device in accordance with a pre-charge signal. When the memory cell is in a self-refresh mode, the pre-charge signal is activated by a periodically triggered pre-charge request and also activated before and after the memory cell is self-refreshed.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: February 11, 2014
    Assignee: Elite Semiconductor Memory Technology Inc.
    Inventors: Chung Zen Chen, Ying Wei Jan, Jian Shiang Liang
  • CIRCUIT AND METHOD FOR CONTROLLING LEAKAGE CURRENT IN RANDOM ACCESS MEMORY DEVICES
    Publication number: 20120287739
    Abstract: A circuit for controlling leakage current in random access memory devices comprises a pre-charge equalization circuit. The pre-charge equalization circuit provides a pre-charge voltage to a pair of complementary bit lines of a memory cell of a random access memory device in accordance with a pre-charge signal. When the memory cell is in a self-refresh mode, the pre-charge signal is activated by a periodically triggered pre-charge request and also activated before and after the memory cell is self-refreshed.
    Type: Application
    Filed: May 11, 2011
    Publication date: November 15, 2012
    Applicant: Elite Semiconductor Memory Technology Inc.
    Inventors: Chung Zen Chen, Ying Wei Jan, Jian Shiang Liang