Patents by Inventor Thinh Cat Nguyen

Thinh Cat Nguyen 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).

  • Variable transconductance variable gain amplifier utilizing a degenerated differential pair
    Patent number: 6509796
    Abstract: Continuously tuning a transconductance. Coupling a degeneration resistance from a first source of a first transistor in a differential pair of transistors to a second source of a second transistor in the differential pair of transistors. Applying a second variable degeneration resistance in parallel to the first degeneration resistance in response to the application of a first variable control voltage. And applying a third variable degeneration resistance in parallel to the first degeneration resistance and the second degeneration resistance in response to the application of a second variable control voltage having a fixed voltage offset from the first variable control voltage.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: January 21, 2003
    Assignee: Broadcom Corporation
    Inventors: Thinh Cat Nguyen, Arnoldus Venes
  • Variable transconductance variable gain amplifier utilizing a degenerated differential pair
    Publication number: 20020050861
    Abstract: Continuously tuning a transconductance. Coupling a degeneration resistance from a first source of a first transistor in a differential pair of transistors to a second source of a second transistor in the differential pair of transistors. Applying a second variable degeneration resistance in parallel to the first degeneration resistance in response to the application of a first variable control voltage. And applying a third variable degeneration resistance in parallel to the first degeneration resistance and the second degeneration resistance in response to the application of a second variable control voltage having a fixed voltage offset from the first variable control voltage.
    Type: Application
    Filed: February 8, 2001
    Publication date: May 2, 2002
    Inventors: Thinh Cat Nguyen, Arnoldus Venes