Ghost cancellation reference signal detection and synchronizatio

Details Ghost cancellation reference signal detection and synchronizatio Ghost cancellation reference signal detection and synchronizatio

1995-10-05

1997-04-22

Peng, John K.

Television

Image signal processing circuitry specific to television

Noise or undesired signal reduction

348607, H04N 521

Patent

active

056233191

ABSTRACT:
A circuit for detecting and synchronizing a ghost cancellation reference (GCR) signal in a television video signal, includes a circuit for receiving at least one field of an input video signal, a circuit for finding a maximum correlation peak value in a field of said input video signal, a circuit for scaling the maximum correlation peak value to a lower predetermined value for detection for forming a scaled peak value, a circuit for synchronizing a next field of the video signal using the scaled peak value, and a circuit for predicting a future position of the GCR signal.

REFERENCES:
patent: 5293234 (1994-03-01), Ko
patent: 5325130 (1994-06-01), Miller et al.
patent: 5335020 (1994-08-01), Dieterich
patent: 5361102 (1994-11-01), Roy et al.
patent: 5363144 (1994-11-01), Park
patent: 5389977 (1995-02-01), Lee

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