Patents by Inventor James Eugene Holladay, Jr.

James Eugene Holladay, Jr. 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).

  • Continuous-wave ranging system
    Patent number: 4057801
    Abstract: A ranging system utilizing continuous-wave radio frequencies having unique relationships which occur at a predictable rate. A radio transmission system used for transmitting data has a portion of its baseband used to determine range to a target. Three frequencies within the portion of the baseband are so chosen that there is a periodic phase conicidence of the three frequencies which occurs at predetermined intervals. The phase coincidence is detected on transmission to and from a target to provide range information.
    Type: Grant
    Filed: April 1, 1976
    Date of Patent: November 8, 1977
    Assignee: Sperry Rand Corporation
    Inventors: James Eugene Holladay, Jr., Billie Mike Spencer