Patents by Inventor Robert Graham Kelly

Robert Graham Kelly 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).

  • Apparatus for comparing two binary signals
    Patent number: 3947673
    Abstract: In known correlation apparatus for identifying the delay between two signals, the current polarity of the lagging signal is repeatedly compared with sets of successively earlier samples of the polarity of the leading signal which are temporarily stored in a binary word register, the results are counted for each digit position of the word, and a signal is generated indicating the position for which the count first reaches a given value. Such apparatus is improved by using as the register a plurality of serially connected shift registers which are operated at different integrally related speeds.
    Type: Grant
    Filed: August 23, 1974
    Date of Patent: March 30, 1976
    Assignee: National Research Development Corporation
    Inventors: James Redmon Jordan, Robert Graham Kelly