Drop-out correction inhibitor for preventing corruption of spati

Details Drop-out correction inhibitor for preventing corruption of spati Drop-out correction inhibitor for preventing corruption of spati

1991-07-30

1992-10-06

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

360 381, H04N 576

Patent

active

051537427

ABSTRACT:
A drop-out correction circuit for use in a VCR includes a generator for developing a gating signal identifying selected horizontal lines of a video signal containing spatially non-correlated encoded data. A control signal developed in response to a drop-out detection signal and the gating signal is applied to a drop-out corrector for providing a drop-out corrected signal at an output terminal except during the occurrence of said selected lines. A noise cancellation circuit operative except during the selected horizontal lines may be coupled to the output of the drop-out corrector.

REFERENCES:
patent: 4409626 (1983-10-01), Ferguson et al.
patent: 4729041 (1988-03-01), Kuroda
patent: 4737862 (1988-04-01), Koga
patent: 4831443 (1989-05-01), Heinz
patent: 5057934 (1991-10-01), Yun et al.

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