Patents by Inventor Chuang-Shen Voo

Chuang-Shen Voo 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).

  • Regulator circuit and reference circuit having high PSRR and switch circuit thereof
    Patent number: 11927975
    Abstract: A switch circuit includes: a switch coupled to control an electrical parameter of a main circuit. A. PSRR of the main circuit is determined by the switch; a first driver configured to operably drive the switch, wherein the first driver is powered by a supply current; and a supply transistor configured to operably generate the supply current, wherein the supply transistor is biased in a subthreshold region, such that the PSRR of the main circuit is higher than a predetermined level within a predetermined frequency range.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: March 12, 2024
    Assignee: PIXART IMAGING INCORPORATION
    Inventor: Chuang-Shen Voo
  • REGULATOR CIRCUIT AND REFERENCE CIRCUIT HAVING HIGH PSRR AND SWITCH CIRCUIT THEREOF
    Publication number: 20230168704
    Abstract: A switch circuit includes: a switch coupled to control an electrical parameter of a main circuit. A. PSRR of the main circuit is determined by the switch; a first driver configured to operably drive the switch, wherein the first driver is powered by a supply current; and a supply transistor configured to operably generate the supply current, wherein the supply transistor is biased in a subthreshold region, such that the PSRR of the main circuit is higher than a predetermined level within a predetermined frequency range.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 1, 2023
    Inventor: Chuang-Shen Voo