Patents by Inventor John D. Fogarty

John D. Fogarty 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).

  • TV Scrambler/descrambler using serial memories
    Patent number: 4547802
    Abstract: Apparatus for scrambling and descrambling the video portion of TV signals is disclosed. The video portion of the TV signal is stored in a serial memory such as a charge coupled device. Scrambling is accomplished by shifting the end portion of the lines of video to the beginning by recirculating the data stored in the charge coupled devices for a portion of a line of the video signal. Two charge coupled devices are provided so that when the data stored in one device is being recirculated for scrambling the subsequent line can be stored in a second device. Descrambling is an inverse operation and is accomplished in essentially identical hardware.
    Type: Grant
    Filed: April 29, 1983
    Date of Patent: October 15, 1985
    Assignee: Westinghouse Electric Corp.
    Inventors: John D. Fogarty, Gerald M. Borsuk