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Process-and-apparatus-for-the-exact-determination-of-the-periodic-position-of-a-television-vertical-synchronizing-signal

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Process and apparatus for the exact determination of the periodic position of a television vertical synchronizing signal

Details

Inventors: Maly, Hans-Peter;
Assignee: Robert Bosch GmbH (Stuttgart, DE)
Primary Examiner: Richardson; Robert L.
Assistant Examiner:
Attorney, Agent or Firm: Littlepage, Quaintance, Murphy, Richardson and Webner

A digital system is disclosed for precisely located a television vertical sync signal. The precise location in time of a (k + 1)th pulse used for vertical synchronization is predicted, based on continuously observed past performance, as a function of time interval after the last or (k)th pulse used for horizontal synchronization.

DETAILED DESCRIPTION The present invention relates to a process of the type discussed, which does not exhibit this disadvantage.
The inventive process has the advantage that the side-jittering observed in the known process is exactly determined through corresponding calculation of the side positions of the synchronizing pulse signal during the blanking intervals over several horizontal periods.
Additional advantages and details of the inventive process are further described in the following specifications and claims.

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