Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1997-03-19
2000-06-27
Nguyen, Huy
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
H04N 5783
Patent
active
060816481
ABSTRACT:
High speed image search data is obtained from compression-coded moving image data for each frame/field). The obtained data is divided into ranges based on positions on a picture, and the range is divided based on the amount of codes. The divided data is multiplexed for each position in the picture as data is recorded at different positions on a track and a specific number of different frames are recorded alternately in each track. The multiplexed high speed image search data is recorded at specific positions on a recording medium. The picture ranges of frames are synthesized based on high speed image search data read from the recording medium, to construct a search image in units of frame. Further, a special reproduction transfer rate is set based on a difference between the moving image data transfer rate and the maximum allowable recording transfer rate. Based on the set transfer rate, the special reproduction image data corresponding to the moving image data can be obtained. A recording format is set based on the special reproduction transfer rate. The moving image data, the special reproduction image data and the recording format are multiplexed in accordance with the set recording format. The multiplexed data train is recorded at specific positions on the recording medium. The format of the moving image data and the special reproduction image data is discriminated from the data train read from the recording medium. Further, any of the moving image data and the special reproduction image data are outputted according to the format. The moving image data and special reproduction image data are recorded on a recording medium as a ratio in code amount of both is changeable, and the special reproduction image data is equally divided into different ranges on one track.
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Nguyen Huy
Victor Company of Japan Ltd.
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