Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1997-09-30
2000-06-13
Garber, Wendy
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
386 68, 386 85, H04N 594
Patent
active
060759178
ABSTRACT:
A jitter compensating device for an on-screen display (OSD) of a picture reproducing apparatus which performs a normal-play mode and a special-play mode includes a compensating vertical synchronous signal generator for receiving a vertical synchronous signal provided from a synchronous signal separator, and for generating a compensating vertical synchronous signal during a period when a dropout occurs. A switching portion selectively outputs either the vertical synchronous signal, provided from the synchronous signal separator, or the compensating vertical synchronous signal provided from the compensating vertical synchronous signal generator based upon a signal from a controller which controls the switching portion according to the normal-play mode or the special-play mode. The OSD processor operates according to the vertical synchronous signal when in the normal-play mode, and according to the compensating vertical synchronous signal when in the special-play mode. Therefore, the jitter of the OSD screen during the special-play mode can be prevented, improving reliability of the product.
REFERENCES:
patent: 4287529 (1981-09-01), Tatami et al.
patent: 4736238 (1988-04-01), Moriyama et al.
patent: 4947264 (1990-08-01), Narusawa
Garber Wendy
Onuaku Christopher
Samsung Electronics Co,. Ltd.
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