Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1996-10-28
1998-09-15
Chevalier, Robert
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
386 78, H04N 591, H04N 5928
Patent
active
058092056
ABSTRACT:
An automatic tracking apparatus and method are disclosed in which high quality sound and picture can be recorded and reproduced for user. In the present invention, videocassette position values are calculated at the left and the right edges of envelope data by travelling the videocassette in the left and the right directions of a head. Videocassette position values are detected at the left and right edges of logic data, and videocassette position values are obtained at the rising edge and the falling edge of the logic data in accordance with a detection condition of a hifi audio signal, so that a final videocassette position value is calculated. The final videocassette position value can be also calculated at the left and the right edges of the envelope data. Therefore, high quality sound and picture can be recorded and reproduced since a final videocassette position value varies in accordance with recording states of video and audio signals.
REFERENCES:
patent: 4905108 (1990-02-01), Otakawa
patent: 4912577 (1990-03-01), Kim
patent: 4916555 (1990-04-01), Hathaway et al.
Chevalier Robert
Daewoo Electronics Co. Ltd.
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