Video image blanking signal generator

Video image blanking signal generator

A video monitor includes apparatus for generating a horizontal blanking pulse accurately timed with respect to a horizontal image retrace interval. The leading edge of the blanking pulse is derived from a differentiated horizontal oscillator signal which is applied to one input of a gate having a th...

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Hauptverfasser: DIETZ, WOLFGANG F. W
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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WOLFGANG F. W
description A video monitor includes apparatus for generating a horizontal blanking pulse accurately timed with respect to a horizontal image retrace interval. The leading edge of the blanking pulse is derived from a differentiated horizontal oscillator signal which is applied to one input of a gate having a threshold operating level. The lagging edge of the blanking pulse is generated when the amplitude of a horizontal flyback pulse applied to another input of the gate falls below the gate threshold level.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
title Video image blanking signal generator
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