Patents by Inventor Philip T. Porter

Philip T. Porter 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).

  • Cellular high capacity mobile radiotelephone system with fleet-calling arrangement for dispatch service
    Patent number: 4399555
    Abstract: A high capacity, cellular, channel reuse, mobile, radiotelephone system supplies both nondispatch radiotelephone service and dispatch service with a fleet-calling capability. For the latter capability, unidirectional communication (48) is provided from a dispatcher station (39) to a fleet-listen radio channel (f.sub.FC10, f.sub.FC20) in each service region of the system where idle fleet mobile units are located. Bidirectional communication (46) is provided between one or more responding fleet units and a fleet dispatcher, and such communication is also applied to the fleet-listen channels.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: August 16, 1983
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Verne H. MacDonald, Philip T. Porter, W. Rae Young