Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1993-12-30
1996-04-23
Tran, Thai Q.
Facsimile and static presentation processing
Facsimile
Recording apparatus
360 101, 360 32, H04N 576, H04N 5782, G11B 500, G11B 509
Patent
active
055108997
ABSTRACT:
A method of reproducing a video signal in a digital video cassette recorder, comprising the step of performing intra-frame coding at an interval of a predetermined number of frames of the video signal to compress the video signal and recording the compressed video signal on a video tape, and the step of varying a travelling speed of the video tape according to a desired one of normal, still, fast forward, fast reverse, slow forward and slow reverse playback modes to reproduce the video signal recorded on the video tape in the desired playback mode. The travelling speed of the video tape is varied by combining speeds of the normal, still, fast forward jump and fast reverse jump modes according to the desired playback mode. The intra-frame coding is performed at an interval of L frames, where L is a natural number greater than or equal to 2, and first slice data of the coded Lth frame becomes first video data of a transmitted data field. Therefore, editing and speed change modes of the digital video cassette recorder can be performed in the basic unit of the coded Lth frame.
REFERENCES:
"Fast Scan Technology for MPEG Video Tape Recorders" by J. Boyce & F. Lane ISO/IEC JTC1/SC29/WG11 MPEG 93/251-Mar. 1993.
"A Study on FF/FR" Y. Noguchi-ISO/IEC JTCQ/SC29/WG11 MPEG 93/288 29 Mar. 1993.
Goldstar Co. Ltd.
Tran Thai Q.
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