Patents Examined by Stpehen C. Buczinski
  • Receiver-transmitter for a target identification system
    Patent number: 5353109
    Abstract: A receiver-transmitter for a target identification system having a particular but not necessarily an exclusive application for the identification of aircraft which utilizes laser vibrometry and a coherent array receiver including an array of photodetectors adapted to receive signals from different parts of the target and to use a corresponding array of frequency-offset reference beams to provide coherent detection of each of the received signals.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: October 4, 1994
    Assignee: Gec-Marconi Limited
    Inventors: Roger M. Langdon, William R. McKnight