HORIZONTAL SYNCHRONIZING SIGNAL SEPARATOR

PURPOSE:To execute stable separation of a horizontal synchronizing signal by correcting missing of a video synchronization pulse signal when it exists to eliminate the deviation of the phase of the horizontal synchronizing signal. CONSTITUTION:When a video synchronization pulse signal P such as an e...

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Bibliographic Details
Main Author KAWAMOTO SHIGEHARU
Format Patent
LanguageEnglish
Published 20.02.1992
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
PULSE TECHNIQUE
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Summary:PURPOSE:To execute stable separation of a horizontal synchronizing signal by correcting missing of a video synchronization pulse signal when it exists to eliminate the deviation of the phase of the horizontal synchronizing signal. CONSTITUTION:When a video synchronization pulse signal P such as an equalization pulse is missing, a front edge detection means 20 detects it to output a 2nd output signal 22a. Thus, it is corrected that the separation of a horizontal synchronizing signal in the missing of the equalization pulse or the like is implemented in a timing with a delay of nearly 0.2H only and the separation of a succeeding horizontal synchronizing signal is implemented without any phase shift. Thus, the horizontal synchronizing separator circuit is realized, in which the horizontal synchronizing signal is stably separated.
Bibliography:Application Number: JP19900163325