Patents by Inventor Raymond E. Alldread

Raymond E. Alldread 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).

  • Performance monitor for leased transmission facilities
    Patent number: 6351768
    Abstract: Method and apparatus that verifies integrity of communications facilities leased from another network. An idle signal is routed to the lessor network at a first point of interface and should be returned from the lessor network at a second point of interface. If the idle signal is not returned, it indicates a failure of integrity in the leased transmission facilities. If the idle signal is not returned, the type of signal that is returned may indicate a type of error that has occurred, such as equipment failure or allocation of the facility for a different purpose.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: February 26, 2002
    Assignee: AT&T Corp
    Inventors: Raymond E. Alldread, William T. Murphy, Luiz A. Vitoria, Terry Watkins, Joseph Wittmann