VERFAHREN UND SCHALTUNGSANORDNUNG ZUR BESEITIGUNG VON FARBTRAEGERSCHWINGUNGEN AUS DEM AUSGANGSSIGNAL DES HELLIGKEITSKANALS

VERFAHREN UND SCHALTUNGSANORDNUNG ZUR BESEITIGUNG VON FARBTRAEGERSCHWINGUNGEN AUS DEM AUSGANGSSIGNAL DES HELLIGKEITSKANALS

A method and circuit for detecting and removing chrominance signal components from the luminance channel of a television receiver is shown. The luminance channel is separated into distinct subchannels, one of which has a filter providing attenuation at the chrominance subcarrier frequency. A detecti...

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Hauptverfasser: H. KLEIN,ARTHUR, L. HAND,WILFRED, J. BURDICK,KENNETH
Format: Patent
Sprache:ger
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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creator H. KLEIN,ARTHUR
L. HAND,WILFRED
J. BURDICK,KENNETH
description A method and circuit for detecting and removing chrominance signal components from the luminance channel of a television receiver is shown. The luminance channel is separated into distinct subchannels, one of which has a filter providing attenuation at the chrominance subcarrier frequency. A detection circuit operates to select the output of the filtered subchannel whenever a chrominance subcarrier signal appears in the luminance channel. The detection circuit is sensitive to the phase relationship between the chrominance signal and a portion of the luminance signal and is therefore substantially immune to signals other than chrominance subcarriers, including high frequency components of the luminance signal.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
title VERFAHREN UND SCHALTUNGSANORDNUNG ZUR BESEITIGUNG VON FARBTRAEGERSCHWINGUNGEN AUS DEM AUSGANGSSIGNAL DES HELLIGKEITSKANALS
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