Picture data recording/reproducing system for recording compressed picture data and reproducing recorded data with plural reproduction modes
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United States of America Patent
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-
Dec 6, 1994
Issued Date -
N/A
app pub date -
Jul 17, 1991
filing date -
Jun 13, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A moving picture data recording/reproducing system. In recording operation, moving picture data of a first frame row including frames selected from frames of an input picture signal for every predetermined number of frames are coded in accordance with an intra-frame coding method in which coding is completed within each frame, while picture data of a second frame row including the other frames are coded by an inter-frame coding method assuring a high compression ratio. The coded data resulting from the inter-frame coding and the intra-frame coding are multiplexed by interleaving them in the order of the frame numbers, the multiplexed data being then recorded on a recording medium. In reproducing operation, the multiplexed data are read out for reproducing the moving picture signal or alternatively the intra-frame coded data of the first frame row are selectively read out for reproducing the moving picture signal.
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