Patents by Inventor Stewart J. R. Hartley

Stewart J. R. Hartley 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).

  • Tropospheric scatter radio communication systems
    Patent number: 4253193
    Abstract: A tropospheric scatter radio communication system uses a multiple signal diversity system in order to improve reliability of reception. A dual time diversity is used in which adjacent bits in a digital word are interleaved with bits from adjacent digital words so that more than one bit from a particular digital word is unlikly to be adversely affected by short term fading.
    Type: Grant
    Filed: November 2, 1978
    Date of Patent: February 24, 1981
    Assignee: The Marconi Company Limited
    Inventors: Paul A. Kennard, Stewart J. R. Hartley