Patents by Inventor Chih-Han Hu

Chih-Han Hu 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).

  • Optical element driving mechanism having movable portion for holding lens
    Patent number: 11982866
    Abstract: An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly, a driving assembly and a stopping assembly. The fixed assembly has a main axis. The movable assembly is configured to connect an optical element, and the movable assembly is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The stopping assembly is configured to limit the movement of the movable assembly relative to the fixed assembly within a range of motion.
    Type: Grant
    Filed: December 15, 2022
    Date of Patent: May 14, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Liang-Ting Ho, Chen-Er Hsu, Yi-Liang Chan, Fu-Lai Tseng, Fu-Yuan Wu, Chen-Chi Kuo, Ying-Jen Wang, Wei-Han Hsia, Yi-Hsin Tseng, Wen-Chang Lin, Chun-Chia Liao, Shou-Jen Liu, Chao-Chun Chang, Yi-Chieh Lin, Shang-Yu Hsu, Yu-Huai Liao, Shih-Wei Hung, Sin-Hong Lin, Kun-Shih Lin, Yu-Cheng Lin, Wen-Yen Huang, Wei-Jhe Shen, Chih-Shiang Wu, Sin-Jhong Song, Che-Hsiang Chiu, Sheng-Chang Lin
  • Factor analysis system and analysis method thereof
    Patent number: 8200528
    Abstract: A factor analysis system and method thereof is disclosed. The factor analysis system comprises a data receiving module for receiving a plurality of factors having influence on a target total value, a plurality of base values corresponding to the factors, and a target improvement percentage; a first computing unit for computing a reference target total value and a plurality of upgraded target total values; a second computing unit using the upgraded target total values and the reference target total value to compute the sensitivity of each of the factors; and a processing module for multiplying a factor improvement of each factor in percentage point by the factor sensitivity of each factor to obtain the level of contribution of each factor to the target total value. Through the factor analysis, a decision maker can decide the optimal combination of different factor improvements for achieving the planned target total value.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: June 12, 2012
    Assignee: National Tsing Hua University
    Inventors: Chen-Fu Chien, Chih-Han Hu
  • FACTOR ANALYSIS SYSTEM AND ANALYSIS METHOD THEREOF
    Publication number: 20120029957
    Abstract: A factor analysis system and method thereof is disclosed. The factor analysis system comprises a data receiving module for receiving a plurality of factors having influence on a target total value, a plurality of base values corresponding to the factors, and a target improvement percentage; a first computing unit for computing a reference target total value and a plurality of upgraded target total values; a second computing unit using the upgraded target total values and the reference target total value to compute the sensitivity of each of the factors; and a processing module for multiplying a factor improvement of each factor in percentage point by the factor sensitivity of each factor to obtain the level of contribution of each factor to the target total value. Through the factor analysis, a decision maker can decide the optimal combination of different factor improvements for achieving the planned target total value.
    Type: Application
    Filed: October 19, 2010
    Publication date: February 2, 2012
    Applicant: NATIONAL TSING HUA UNIVERSITY
    Inventors: CHEN-FU CHIEN, CHIH-HAN HU