Patents by Inventor Ching-Ying Tsou

Ching-Ying Tsou 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).

  • Driver circuit and projector including voltage conversion units at primary side
    Patent number: 11044435
    Abstract: A driver circuit includes a first voltage conversion unit, a second voltage conversion unit, a third voltage conversion unit, a light driver and a control circuit. The first voltage conversion unit may convert a first voltage to a second voltage. The second voltage conversion unit may convert the second voltage to a third voltage in a non-electrically isolated manner. The third voltage conversion unit may convert the second voltage to a fourth voltage in a non-electrically isolated manner. The light driver may receive the third voltage and a control signal to generate a control current according to the control signal. The control circuit may receive the fourth voltage and an image signal to generate the control signal according to the image signal.
    Type: Grant
    Filed: June 2, 2019
    Date of Patent: June 22, 2021
    Assignee: Qisda Corporation
    Inventors: Fang-Chieh Lu, Chi-Jen Chen, Chuan-Chu Chen, Ching-Ying Tsou
  • DRIVER CIRCUIT AND PROJECTOR INCLUDING VOLTAGE CONVERSION UNITS AT PRIMARY SIDE
    Publication number: 20200145605
    Abstract: A driver circuit includes a first voltage conversion unit, a second voltage conversion unit, a third voltage conversion unit, a light driver and a control circuit. The first voltage conversion unit may convert a first voltage to a second voltage. The second voltage conversion unit may convert the second voltage to a third voltage in a non-electrically isolated manner. The third voltage conversion unit may convert the second voltage to a fourth voltage in a non-electrically isolated manner. The light driver may receive the third voltage and a control signal to generate a control current according to the control signal. The control circuit may receive the fourth voltage and an image signal to generate the control signal according to the image signal.
    Type: Application
    Filed: June 2, 2019
    Publication date: May 7, 2020
    Inventors: Fang-Chieh Lu, Chi-Jen Chen, Chuan-Chu Chen, Ching-Ying Tsou
  • Method for operating an electronic device to increase light density and electronic device thereof
    Patent number: 9668329
    Abstract: An electronic device includes a first light module, a second light module, a primary driver, and a first secondary driver. The first light module is used to emit a first light, and the second light module is used to emit a second light. The primary driver has a first control terminal for turning on the first light module during a first duration, and a second control terminal for turning on the second light module during a second duration. The first secondary driver is used to turn on the first light module during the second duration.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: May 30, 2017
    Assignee: Qisda Corporation
    Inventors: Chi-Jen Chen, Fang-Chieh Lu, Chuan-Chu Chen, Ching-Ying Tsou
  • METHOD FOR OPERATING AN ELECTRONIC DEVICE TO INCREASE LIGHT DENSITY AND ELECTRONIC DEVICE THEREOF
    Publication number: 20170071051
    Abstract: An electronic device includes a first light module, a second light module, a primary driver, and a first secondary driver. The first light module is used to emit a first light, and the second light module is used to emit a second light. The primary driver has a first control terminal for turning on the first light module during a first duration, and a second control terminal for turning on the second light module during a second duration. The first secondary driver is used to turn on the first light module during the second duration.
    Type: Application
    Filed: September 7, 2015
    Publication date: March 9, 2017
    Inventors: Chi-Jen Chen, Fang-Chieh Lu, Chuan-Chu Chen, Ching-Ying Tsou