Method and apparatus for achieving video data reduction through the use of re-encoding
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United States of America Patent
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Feb 8, 2000
Issued Date -
N/A
app pub date -
Aug 6, 1997
filing date -
Jan 13, 1993
priority date (Note) -
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Abstract
Method and apparatus for extracting intra-coded video frames from a video data stream including inter-coded video frames and intra-coded video frames to produce reduced resolution intra-coded video frames suitable for recording in trick play tape segments of a tape for later play back and display during video tape recorder trick play operation. A plurality of methods and apparatus for buffering and selecting received intra-coded video frames for recording in trick play tape segments to support a plurality of trick play modes of operation are disclosed. In addition, a plurality of different data reduction methods and apparatus are disclosed for generating reduced resolution intra-coded frames from the received full resolution intra-coded video frames.
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