Horizontal synchronizing system

A horizontal synchronizing signal from a reference source is sampled at the vertical rate by a first sampling gate controlled by a vertical rate signal from a reference source. A signal related to the output of a horizontal frequency synchronizing pulse generator is sampled at the vertical rate by a...

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Bibliographic Details
Main Author BREITHAUPT; DAVID W
Format Patent
LanguageEnglish
Published 09.09.1980
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:A horizontal synchronizing signal from a reference source is sampled at the vertical rate by a first sampling gate controlled by a vertical rate signal from a reference source. A signal related to the output of a horizontal frequency synchronizing pulse generator is sampled at the vertical rate by a second sampling gate controlled by the vertical rate signal. The output of each sampling gate is fed to an input of a phase detector which develops an error signal indicative of the phase relationship between the two sampled signals. The error signal is utilized to control the phase of the generated horizontal synchronizing pulse.
Bibliography:Application Number: US19780952221