Patents by Inventor Armand P. Narayan

Armand P. Narayan 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).

  • Interference cancellation in variable codelength systems for multi-acess communication
    Patent number: 8064498
    Abstract: A receiver employs low-rate processing to synthesize the effect of high-rate interference in a received multi-rate signal. Each high-rate subchannel is analyzed on its low-rate descendents to produce symbol estimates for each low-rate symbol interval. The symbol estimates are applied to low-rate descendent subchannels, which are then combined to synthesize the effects of the high-rate interference. An interference canceller processes the synthesized interference with the received signal for producing an interference-cancelled signal. Alternatively, analogous steps may be applied at high-rate to analyze, synthesize, and cancel the effects of low-rate interference in a multi-rate signal.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: November 22, 2011
    Assignee: Rambus Inc.
    Inventors: Vijay Nagarajan, Louis L. Scharf, Armand P. Narayan