Picture generating apparatus for a rotary recording medium repro

Details Picture generating apparatus for a rotary recording medium repro Picture generating apparatus for a rotary recording medium repro

1984-04-11

1986-09-30

McElheny, Jr., Donald

Facsimile and static presentation processing

Facsimile

Recording apparatus

358335, H04N 576

Patent

active

046149821

ABSTRACT:
A picture generating apparatus for a disc reproducing apparatus, comprises a circuit for storing at least one picture information data, different from the picture information data of the recorded video signal, from among various additional information, a counter for producing a coincidence signal when a counted value of horizontal synchronizing pulses coincides with a preset value, a data obtaining circuit for successively obtaining the stored picture information data for a predetermined number of scanning lines from a time when the coincidence signal is produced, a circuit for selectively producing a picture signal having a predetermined constant level in a duration in which the picture information data is obtained and the reproduced video signal in a duration in which the picture information data is not obtained, and a circuit for carrying out a control so that the coincidence signal is produced at a point when a number of horizontal synchronizing pulses in the range of 25 have been reproduced more than a value of the preset value at the time of playing a disc recorded with the video signal of a first system employing 525 scanning lines, when playing a disc recorded with a video signal of a second system employing 625 scanning lines so that the horizontal scanning frequency is reproduced with the horizontal scanning frequency of the first system.

REFERENCES:
patent: 4148077 (1979-04-01), Bragas
patent: 4283736 (1981-08-01), Morio et al.
patent: 4447834 (1984-05-01), Sugiyama

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