Synchronous detection system

Details Synchronous detection system Synchronous detection system

H - Electricity

04

N

350/56

H04N 5/04 (2006.01) H04N 5/455 (2006.01)

Patent

CA 1124845

SYNCHRONOUS DETECTION SYSTEM ABSTRACT OF THE DISCLOSURE A system is described for synchronously detecting a video signal along a selectable detection axis. The system includes a limiter receiving an input video signal and a phase-locked loop for developing an oscillator signal whose frequency is locked to the fre- quency of the video signal. A phase-adjustment network receives the oscillator signal from the phase-locked loop for adjusting the phase of the oscillator signal such that it corresponds to the desired axis of detection. A synchronous detector receives the input video signal and the phase-adjusted oscillator signal for detecting the video signal along the selected detection axis.

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