Subcarrier/horizontal sync phase measurement

Subcarrier/horizontal sync phase measurement

Signals suitable for displaying the phase relationship between the subcarrier wave and the horizontal sync pulse of a composite video signal are provided by establishing coincidence between the d.c. level of the 50 percent point of the sync pulse and the zero crossing point of the subcarrier wave, a...

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Hauptverfasser: MELLING, JR., LAURENT A
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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creator MELLING, JR.
LAURENT A
description Signals suitable for displaying the phase relationship between the subcarrier wave and the horizontal sync pulse of a composite video signal are provided by establishing coincidence between the d.c. level of the 50 percent point of the sync pulse and the zero crossing point of the subcarrier wave, and generating a reference voltage level at the d.c. level of the 50 percent point of the sync pulse.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
title Subcarrier/horizontal sync phase measurement
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