Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1996-01-26
1997-03-04
Tran, Thai Q.
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
386 34, 386 44, 386 67, H04N 979, H04N 578
Patent
active
056085320
ABSTRACT:
A signal processing device and method which performs stable video signal reproduction in a slow mode function of a video tape recorder by digitally storing only those slow mode images which are stable. The signal processing device includes a signal separator for receiving a composite video signal which is scanned from a video tape in a slow mode of the VTR and separating the received signals into a luminance signal and chrominance signals; an analog-to-digital converter for converting the separated analog luminance and chrominance signals to digital signals; a storage unit for storing the digital luminance and chrominance signals of each field; a digital-to-analog converter for converting the stored signals to analog signals; a microcomputer for generating slow mode signals when a direct current component of an envelope of the scanned composite video signal exceeds a predetermined value; a digital-to-analog converter for converting the stored digital signals to analog signals and outputting the converted signals; a sync signal generator for receiving sub-carrier signals and outputting the composite sync signals and the sub-carrier signals which are frequency-divided; an encoder for encoding the analog-converted signals in response to the composite sync signals and outputting the encoded composite video signals as signals for constituting the slow mode image; and a controller for controlling the storage unit and encoder in response to the slow mode signals and composite sync signals.
REFERENCES:
patent: 4163993 (1979-08-01), Ravizza
patent: 4400717 (1983-08-01), Southworth et al.
patent: 4435725 (1984-03-01), Nagao et al.
patent: 4729011 (1988-03-01), McCann
patent: 4870510 (1989-09-01), Edakubo et al.
patent: 4873587 (1989-10-01), Yoshimura et al.
patent: 5084766 (1992-01-01), Nakatani
patent: 5142376 (1992-08-01), Ogura
patent: 5327249 (1994-07-01), Lee
patent: 5337192 (1994-08-01), Fukasawa et al.
patent: 5355256 (1994-10-01), Fukatsu et al.
patent: 5504534 (1996-04-01), Sakaegi
patent: 5541737 (1996-07-01), Oguro et al.
patent: 5546133 (1996-08-01), Honma
Lee Y.
Samsung Electronics Co,. Ltd.
Tran Thai Q.
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