Patents Assigned to Edutron Incorporated
  • Delay circuit
    Patent number: 4099204
    Abstract: A voltage controlled, active variable delay circuit for pulse signals, and a video signal time base corrector incorporating that variable delay circuit. The variable delay circuit includes a cascaded chain of electronic inverters, each of which has a propagation delay time dependent upon the level of an applied control voltage, and a pulse shaping circuit which regenerates substantially the input pulse waveform.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: July 4, 1978
    Assignee: Edutron Incorporated
    Inventors: Virgil L. Lowe, Philip V. C. Craig