Patents by Inventor Andrew Wayne Barnhart

Andrew Wayne Barnhart 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).

  • Bilateral communications system for distributing commerical and premium video signaling on an accountable basis
    Patent number: 3934079
    Abstract: A bilateral communications system, as for CATV application, distributes commercially available and premium video programming on a subscriber demand--directly accountable basis. At least the premium video programming is impressed on the cable in a frequency band and/or format not recoverable by a standard television receiver, absent receipt at a particular subscriber location of a reception-authorizing message from the system head end.A central processor at the system head end sequentially polls cable subscribers under stored program control, permitting bilateral digital communications between the subscriber and the head end.
    Type: Grant
    Filed: October 26, 1973
    Date of Patent: January 20, 1976
    Assignee: Jerrold Electronics Corporation
    Inventor: Andrew Wayne Barnhart