Patents by Inventor James Beaney

James Beaney 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).

  • xDSL modem having DMT symbol boundary detection
    Patent number: 6252902
    Abstract: An xDSL communication system using Discrete Multi-tone (DMT) symbols sent over a channel. The magnitude of the channel's frequency-domain equalizing filter is normalized, leaving only phase information. The inverse discrete fourier transform of the normalized filter gives a peak at a position which corresponds to the group time delay of the transmitted DMT symbol. Identification of the symbol boundary facilitates synchronization of the receiver symbol sample phase to the transmitter symbol phase.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: June 26, 2001
    Assignee: Virata Corporation
    Inventors: Richard Simeon, James Beaney