Apparatus for reducing the effect of co-channel interference on

Details Apparatus for reducing the effect of co-channel interference on Apparatus for reducing the effect of co-channel interference on

1981-01-16

1982-08-03

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358155, 358 36, H04N 9535, H04N 508

Patent

active

043430198

ABSTRACT:
An apparatus for reducing the effect of co-channel interference on horizontal synchronization of a television receiver having a comb filter for separating luminance and chrominance signals from a composite video signal comprises a synchronizing pulse separator, coupled to the comb filter output, for driving horizontal synchronizing pulses from the comb filter luminance signal. The co-channel interference beat frequency signals are reduced in amplitude by the comb filter and hence do not disrupt the operation of the synchronizing pulse separator.

REFERENCES:
patent: 2644942 (1953-07-01), Bedford
patent: 4096516 (1978-06-01), Pritchard
patent: 4185299 (1980-01-01), Harford
Lothian, "A Comb Filter for Suppression of Co-Channel Interference on Television Signals", Conference on Radio Receivers and Associated Systems, _Southampton, England. (Jul. 11-14, 1978), pp. 121-134.

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