Patents by Inventor Robert R. Campbell

Robert R. Campbell 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).

  • Variable PRF target tracking radar
    Patent number: 4642641
    Abstract: A high PRF pulse doppler radar for tracking moving targets is described wherein the PRF of the transmitted signal is varied within predetermined PRF limits to keep the target reflected high PRF signal centered within the receive gate of the radar and wherein spurious signals incidentally generated by the action of the receive gate are reduced below the receiver noise level. In the event of temporary target reflected signal loss, the PRF of the transmitted signal is varied within predetermined PRF limits based upon the velocity and range estimate of the target to keep subsequent target reflected signals centered within the receive gate of the radar.
    Type: Grant
    Filed: July 29, 1976
    Date of Patent: February 10, 1987
    Assignee: Westinghouse Electric Corp.
    Inventor: Robert R. Campbell
  • Time sharing circuit for guard radar receiver in radar ranging system
    Patent number: 4015261
    Abstract: 1.
    Type: Grant
    Filed: January 7, 1964
    Date of Patent: March 29, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Robert R. Campbell
  • Sport shoe
    Patent number: D293158
    Type: Grant
    Filed: July 12, 1984
    Date of Patent: December 15, 1987
    Assignee: BBC International Ltd.
    Inventor: Robert R. Campbell