Patents by Inventor Vernon D. Peckham

Vernon D. Peckham 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).

  • Patent number: 3937574
    Abstract: A pair of light intensity detectors are spaced apart in range and an arrangement is included for reflecting light from a target to the detectors. The system measures target range by dividing the output signal of one of the detectors by a signal which is a function of the difference between the output signals of the two detectors to produce a quotient signal. To avoid low signal instability problems, the difference signal is generated in one embodiment of the system by subtracting only a selected fraction of the output signal of the far detector from that of the near detector. A substantially linearized output signal representing target range is produced in this system embodiment by raising the quotient signal to a selected power. The light detectors are preferably incorporated in input circuits which are temperature compensated.
    Type: Grant
    Filed: October 29, 1973
    Date of Patent: February 10, 1976
    Assignee: Kaman Sciences Corporation
    Inventors: Vernon D. Peckham, Charles E. Baker, Jr., Donald H. Bryce