Wide band VCR with comb filter inhibition

Details Wide band VCR with comb filter inhibition Wide band VCR with comb filter inhibition

1987-09-08

1989-05-16

Mullins, James B.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 31, H04N 704

Patent

active

048314439

ABSTRACT:
A super VHS VCR includes a comb filter for separating luminance and chrominance signals from a composite video signal to provide improved frequency recording characteristics. A timing circuit detects the television signal vertical interval, finds the horizontal lines that bear encoded Teletext data and inhibits comb filtering during the active video portion of the selected horizontal lines to protect any Teletext data from corruption by the comb filter action.

REFERENCES:
patent: 4695900 (1987-09-01), Honjo et al.

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