Patents by Inventor Shang-Ko Mao

Shang-Ko Mao 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).

  • Projection system and control method of driving current therefor
    Patent number: 11022864
    Abstract: A projection system and a control method of a driving current thereof are provided. A power supply of an illumination module provides the driving current to drive a light source to provide an illumination beam. A filter wheel receives the illumination beam and filtered beams are generated. The illumination beam passes through the filter wheel during a first period and a first filtered beam is generated. The illumination beam passes through the filter wheel during a second period and a second filtered beam is generated. The filtered beams include the first filtered beam, the second filtered beam, and an intermediate filtered beam generated during an intermediate period between the first and second periods. A control device controls the power supply to continuously provide the driving current from the first period, through the intermediate period, to the second period.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: June 1, 2021
    Assignee: Coretronic Corporation
    Inventors: Shun-Tai Chen, Chung-Lin Ke, Shang-Ko Mao
  • PROJECTION SYSTEM AND CONTROL METHOD OF DRIVING CURRENT THEREFOR
    Publication number: 20200166827
    Abstract: A projection system and a control method of a driving current thereof are provided. A power supply of an illumination module provides the driving current to drive a light source to provide an illumination beam. A filter wheel receives the illumination beam and filtered beams are generated. The illumination beam passes through the filter wheel during a first period and a first filtered beam is generated. The illumination beam passes through the filter wheel during a second period and a second filtered beam is generated. The filtered beams include the first filtered beam, the second filtered beam, and an intermediate filtered beam generated during an intermediate period between the first and second periods. A control device controls the power supply to continuously provide the driving current from the first period, through the intermediate period, to the second period.
    Type: Application
    Filed: November 13, 2019
    Publication date: May 28, 2020
    Applicant: Coretronic Corporation
    Inventors: Shun-Tai Chen, Chung-Lin Ke, Shang-Ko Mao