Patents by Inventor Adam Chuen-Huei Chou

Adam Chuen-Huei Chou 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).

  • Phase jumping locked loop circuit
    Patent number: 7135903
    Abstract: A phase-jumping locked loop circuit. The locked loop circuit includes a plurality of differential amplifiers and a biasing circuit switchably coupled to each of the differential amplifiers. Each of the differential amplifiers has inputs to receive a respective pair of clock signals and outputs coupled to a common pair of output signal lines. The biasing circuit comprising a first plurality of biasing transistors coupled in parallel with one another and in series with a first set of the differential amplifiers, and a second plurality of biasing transistors coupled in parallel with one another and in series with a second set of the differential amplifiers.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: November 14, 2006
    Assignee: Rambus Inc.
    Inventors: Jade M. Kizer, Benedict C. Lau, Roxanne T. Vu, Huy M. Nguyen, Leung Yu, Adam Chuen-Huei Chou
  • Method and apparatus for distributed voltage compensation with a voltage driver that is responsive to feedback
    Patent number: 7046078
    Abstract: An integrated circuit has one or more components that operate with reference to a distributed reference voltage. A reference voltage driver produces a compensated reference voltage, and the compensated reference voltage is distributed to form the distributed reference voltage at the components. Due to factors such as trace resistance and gate leakage, the distributed reference voltage is degraded relative to the compensated reference voltage. The reference voltage driver is responsive to feedback derived from the distributed reference voltage to adjust the compensated reference voltage so that the distributed reference voltage is approximately equal to a nominal reference voltage.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: May 16, 2006
    Assignee: Rambus Inc.
    Inventors: Huy M. Nguyen, Benedict C. Lau, Adam Chuen-Huei Chou, Roxanne T. Vu
  • Method and apparatus for distributed voltage compensation with a voltage driver that is responsive to feedback
    Patent number: 6897713
    Abstract: An integrated circuit has one or more components that operate with reference to a distributed reference voltage. A reference voltage driver produces a compensated reference voltage, and the compensated reference voltage is distributed to form the distributed reference voltage at the components. Due to factors such as trace resistance and gate leakage, the distributed reference voltage is degraded relative to the compensated reference voltage. The reference voltage driver is responsive to feedback derived from the distributed reference voltage to adjust the compensated reference voltage so that the distributed reference voltage is approximately equal to a nominal reference voltage.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: May 24, 2005
    Assignee: Rambus Inc.
    Inventors: Huy M. Nguyen, Benedict C. Lau, Adam Chuen-Huei Chou, Roxanne T. Vu
  • Phase jumping locked loop circuit
    Publication number: 20040041604
    Abstract: A phase-jumping locked loop circuit. The locked loop circuit includes a plurality of differential amplifiers and a biasing circuit switchably coupled to each of the differential amplifiers. Each of the differential amplifiers has inputs to receive a respective pair of clock signals and outputs coupled to a common pair of output signal lines. The biasing circuit comprising a first plurality of biasing transistors coupled in parallel with one another and in series with a first set of the differential amplifiers, and a second plurality of biasing transistors coupled in parallel with one another and in series with a second set of the differential amplifiers.
    Type: Application
    Filed: February 25, 2003
    Publication date: March 4, 2004
    Inventors: Jade M. Kizer, Benedict C. Lau, Roxanne T. Vu, Huy M. Nguyen, Leung Yu, Adam Chuen-Huei Chou