Patents by Inventor Peter Patrick

Peter Patrick 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: 5784454
    Abstract: The invention relates to an arrangement for communication with a subscriber. The arrangement includes a spectral analysis unit for producing short-time spectral values (Y(i)) of received signals (E) which signals are at times subscriber's speech signals superimposed by echoes of transmission signals (S) transmitted to the subscriber, a echo cancelling unit for estimating short-time spectral values of the echoes (X.sub.w (i)) and for producing difference values (D(i)) between the short-time spectral values (Y(i)) of the received signals (E) and the estimated short-time spectral values (X.sub.w (i)) of the echoes, and speech recognition unit for evaluating the difference values (D(i)).
    Type: Grant
    Filed: July 27, 1995
    Date of Patent: July 21, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Peter Patrick, Hans-Wilhelm Ruhl, Stefan Dobler