Patents by Inventor Philip J. Knight

Philip J. Knight 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).

  • Simultaneous ringing control in the time division duplex telecommunications system
    Patent number: 5103448
    Abstract: A telecommunications sytem comprises a plurality of distributed base stations each operatively coupled to a public switched telecommunications network and being adapted to cooperate with one or more of a plurality of portable cordless telephone units by way of a plurality of cordless digital communication channels operating on a time division duplex basis. The base unit is arranged upon detection of an incoming public switched network call, to poll all the portable cordless telephone units by transmitting on a repetitious basis the identity of the portable units to be connected to the incoming call on a selected channel and the base unit is arranged to intersperse each poll operation with a signalling message.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: April 7, 1992
    Assignee: GEC Plessey Telecommunications Ltd.
    Inventors: Nigel E. Barnes, Philip J. Knight