Patents by Inventor Valjean P. Snyder

Valjean P. Snyder 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).

  • Radiation-controlled filter with photoconductor means and feedback thereto
    Patent number: 5162646
    Abstract: Embodiments disclose an adjustable filter (cf voltage-controlled bandwidth) having photoconductors whose resistance is adjusted by variable-intensity radiation source means, with a related feedback loop to compensate for thermal changes.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: November 10, 1992
    Assignee: Unisys Corp.
    Inventors: Bruce H. Williams, Valjean P. Snyder, Patrick S. Grant
  • Adjustable radiation-controlled filter with voltage controlled bandwidth
    Patent number: 5103084
    Abstract: Embodiments disclose an adjustable filter (cf voltage-controlled bandwidth) having photoconductors whose resistance is adjusted by variable-intensity radiation source means, with a related feedback loop to compensate for thermal changes.
    Type: Grant
    Filed: June 15, 1989
    Date of Patent: April 7, 1992
    Assignee: Unisys Corp.
    Inventors: Bruce H. Williams, Valjean P. Snyder, Patrick S. Grant
  • Self-clocking system
    Patent number: 4993048
    Abstract: Self-clocking system for demodulating phase encoded data automatically tracks incoming data rate changes by using information from a bit synchronizer to track the incoming base band data signal.
    Type: Grant
    Filed: April 18, 1990
    Date of Patent: February 12, 1991
    Assignee: Unisys Corporation
    Inventors: Bruce H. Williams, Glenn A. Arbanas, Valjean P. Snyder