Patents by Inventor Sivakumar Doriswamy

Sivakumar Doriswamy 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).

  • PVT drift compensation
    Patent number: 7519844
    Abstract: A timing circuit for generating a timing signal having a predetermined relationship with a reference signal. The timing circuit includes a locked loop for generating the recovered clock signal, comparing the phase of the reference signal to the phase of the timing signal, and adjusting the phase of the timing signal based on the comparison; and a PVT (Process-Voltage-Temperature) line operatively associated with the locked loop so that PVT drift in the PVT line counters PVT drift in the locked loop.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: April 14, 2009
    Assignee: Rambus, Inc.
    Inventors: Jade Kizer, Sivakumar Doriswamy
  • PVT drift compensation
    Publication number: 20060294410
    Abstract: A timing circuit for generating a timing signal having a predetermined relationship with a reference signal. The timing circuit includes a locked loop for generating the recovered clock signal, comparing the phase of the reference signal to the phase of the timing signal, and adjusting the phase of the timing signal based on the comparison; and a PVT (Process-Voltage-Temperature) line operatively associated with the locked loop so that PVT drift in the PVT line counters PVT drift in the locked loop.
    Type: Application
    Filed: June 22, 2005
    Publication date: December 28, 2006
    Applicant: Rambus, Inc.
    Inventors: Jade Kizer, Sivakumar Doriswamy