Patents by Inventor CHU-LEIK HO

CHU-LEIK HO 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 encoder capable of identifying absolute positions and operating method thereof
    Patent number: 10871385
    Abstract: The present disclosure is related to an optical encoder which is configured to provide precise coding reference data by feature recognition technology. To apply the present disclosure, it is not necessary to provide particular dense patterns on a working surface. The precise coding reference data can be generated by detecting surface features of the working surface.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: December 22, 2020
    Assignee: PIXART IMAGING INC.
    Inventors: Boon-How Kok, Keen-Hun Leong, Ching-Geak Chan, Chiang-Hee Lim, Chu-Leik Ho, Hsin-Chia Chen, Yen-Min Chang
  • OPTICAL ENCODER CAPABLE OF IDENTIFYING ABSOLUTE POSITIONS AND OPERATING METHOD THEREOF
    Publication number: 20190138832
    Abstract: The present disclosure is related to an optical encoder which is configured to provide precise coding reference data by feature recognition technology. To apply the present disclosure, it is not necessary to provide particular dense patterns on a working surface. The precise coding reference data can be generated by detecting surface features of the working surface.
    Type: Application
    Filed: January 2, 2019
    Publication date: May 9, 2019
    Inventors: BOON-HOW KOK, KEEN-HUN LEONG, CHING-GEAK CHAN, CHIANG-HEE LIM, CHU-LEIK HO, HSIN-CHIA CHEN, YEN-MIN CHANG
  • Optical encoder capable of identifying absolute positions and operating method thereof
    Patent number: 10210412
    Abstract: The present disclosure is related to an optical encoder which is configured to provide precise coding reference data by feature recognition technology. To apply the present disclosure, it is not necessary to provide particular dense patterns on a working surface. The precise coding reference data can be generated by detecting surface features of the working surface.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: February 19, 2019
    Assignee: PIXART IMAGING INC.
    Inventors: Boon-How Kok, Keen-Hun Leong, Ching-Geak Chan, Chiang-Hee Lim, Chu-Leik Ho, Hsin-Chia Chen, Yen-Min Chang
  • OPTICAL ENCODER CAPABLE OF IDENTIFYING ABSOLUTE POSITIONS AND OPERATING METHOD THEREOF
    Publication number: 20170061226
    Abstract: The present disclosure is related to an optical encoder which is configured to provide precise coding reference data by feature recognition technology. To apply the present disclosure, it is not necessary to provide particular dense patterns on a working surface. The precise coding reference data can be generated by detecting surface features of the working surface.
    Type: Application
    Filed: November 9, 2016
    Publication date: March 2, 2017
    Inventors: Boon-How KOK, Keen-Hun LEONG, Ching-Geak CHAN, Chiang-Hee LIM, Chu-Leik HO, Hsin-Chia CHEN, Yen-Min CHANG
  • EYEGLASSES WITH ADJUSTABLE LIGHT PENETRATION AND LIGHT PENETRATION ADJUSTING METHOD THEREOF
    Publication number: 20150153590
    Abstract: There is provided eyeglasses with adjustable light penetration including two lenses, a power source and a control device. The two lenses respectively include two electrodes and a liquid crystal layer sandwiched between the two electrodes. The power source is electrically coupled to the two electrodes of the two lenses through the control device. The control device is configured to control an electrical signal provided from the power source to the two electrodes thereby adjusting a light penetration rate of the liquid crystal layer.
    Type: Application
    Filed: December 2, 2013
    Publication date: June 4, 2015
    Applicant: PIXART IMAGING INC.
    Inventors: CHU-LEIK HO, ANDREW KHOO