Patents by Inventor Avadhani Sridhar

Avadhani Sridhar 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).

  • Patent number: 7035326
    Abstract: The present invention provides a method and apparatus for demodulating data received over a communication medium carrying a transmission having multiple pilot tones with pilot data modulated thereon and message tones with message data modulated thereon and with the pilot tones and message tones frequency division multiplexed with respect to one another. In an embodiment of the invention the communication protocol utilized for modulation and demodulation is discrete multi tone (DMT). The invention allows message processing and equalizer training to proceed in parallel before equalizer training tables have been completed thus reducing the time associated with modem initialization. The apparatus in one embodiment of the invention includes on the receive path of a DMT or other multi-tone modem, a fast Fourier transform engine (FFT), a message processor, and a decoder. The FFT converts the received data from a time domain to a frequency domain.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: April 25, 2006
    Assignee: Ikanos Communication, Inc.
    Inventors: Sam Heidari, Mazen M. Shihabi, Saman Behtash, Hojat Khelghati, John Gevargiz, Avadhani Sridhar, Fernando Ramirez-Mireles