Wideband chrominance signal filter

Details Wideband chrominance signal filter Wideband chrominance signal filter

1983-06-28

1986-10-28

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 21R, 358 31, H04N 964, H04N 977

Patent

active

046202200

ABSTRACT:
A color television receiver includes a comb filter responsive to detected video signals for providing a wideband combed chrominance signal, which is coupled to chrominance processing circuits via a composite filter including plural mutually interactive resonant sections. An input resonant section of the filter serves to remove very high frequency interference signals including comb filter switching components from the chrominance signal path, and also coacts with the other filter sections to provide an amplitude characteristic having a sense to compensate for an oppositely directed amplitude characteristic associated with the detected video signals, over the passband of the wideband chrominance signals.

REFERENCES:
patent: 4288811 (1981-09-01), Naimpally
patent: 4371891 (1983-02-01), Yost
patent: 4417270 (1983-11-01), Nagao et al.
patent: 4513311 (1985-04-01), Hirai et al.
patent: 4516153 (1985-05-01), Krull et al.
patent: 4536787 (1985-08-01), Murphy, III et al.
patent: 4536788 (1985-08-01), Naimpally
Service Data Bulletin (No. T3, 1954) for RCA Color Television Receiver Model CT-100.

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