Picture stabilizing circuit for generating a forced synchronizin

Details Picture stabilizing circuit for generating a forced synchronizin Picture stabilizing circuit for generating a forced synchronizin

1987-04-15

1989-07-18

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Record editing

360 103, 360 371, 358319, 358327, H04N 593

Patent

active

048498300

ABSTRACT:
When a speed change occurs during a reproduction mode of a VCR, an analog video signal is developed that has a width determined by synchronizing the analog video signal to a point in time when an electrical potential for the head switching signal is shifted. The analog video signal is applied as a compensating signal to video signals so that a rising level is compensated for near a forced synchronizing signal. Thereby, a condition is provided for the forced synchronizing signal to be reliably detected without being effected by noise signals corresponding to the forced synchronizing signal in order to produce a stable picture.

REFERENCES:
patent: 3322892 (1967-05-01), Yasuoka et al.
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patent: 3767849 (1973-10-01), Wessels
patent: 4203138 (1980-05-01), Elenbaas
patent: 4489352 (1984-12-01), Kobayashi et al.
patent: 4509082 (1985-04-01), Kroner
patent: 4733312 (1988-03-01), Morimoto
patent: 4737864 (1988-04-01), Sekiya et al.

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