Patents by Inventor Timothy R Housel

Timothy R Housel 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).

  • Seamless redundant echo canceller replacement in a multi-channel echo canceller
    Patent number: 7120130
    Abstract: An echo cancelling system comprises a system controller for directing inbound and outbound PCM signals to one of two echo canceller modules. The system controller receives status information from the echo cancellers and maintains state information pertaining to the active echo canceller, in order to allow seamless switchover from one echo canceller to the other without interrupting service.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: October 10, 2006
    Assignee: Tellabs Operations, Inc.
    Inventors: Bruce M Bina, William P DeBruyn, Steven M Sagerian, Timothy R Housel
  • Seamless redundant echo canceller replacement in a multi-channel echo canceller
    Publication number: 20030067888
    Abstract: An echo cancelling system comprises a system controller for directing inbound and outbound PCM signals to one of two echo canceller modules. The system controller receives status information from the echo cancellers and maintains state information pertaining to the active echo canceller, in order to allow seamless switchover from one echo canceller to the other without interrupting service.
    Type: Application
    Filed: October 10, 2001
    Publication date: April 10, 2003
    Inventors: Bruce M. Bina, William P. DeBruyn, Steven M. Sagerian, Timothy R. Housel