Picture data reproducing apparatus and method

Details Picture data reproducing apparatus and method Picture data reproducing apparatus and method

2008-01-22

2008-01-22

Tran, Thai Q. (Department: 2621)

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

C386S349000

Reexamination Certificate

active

07321715

ABSTRACT:
In a picture data reproducing method of reproducing picture data recorded to a recording medium according the MPEG standard, there is provisionally stored, into a stream buffer, picture data grouped as a GOP which begins with an I picture, the picture data provisionally stored in the stream buffer is read sequentially starting with a previous picture and the read picture data is decoded in the course of a FORWARD reproduction being done, and picture data acquired from the recording medium is additionally supplied to the stream buffer. When the picture data provisionally stored in the stream buffer have been read in the decoding step to before last N frames, a predetermined amount of picture data is additionally supplied, in the data adding step, beginning at the head of a GOP including picture data in the remaining N-th frame in the stream buffer. Thus, a smooth variable-speed reproduction can be done according to the MPEG Standard.

REFERENCES:
patent: 5771331 (1998-06-01), Aoki et al.
patent: 6408338 (2002-06-01), Moon et al.
patent: 2001/0026677 (2001-10-01), Chen et al.
patent: 8 79688 (1996-03-01), None
patent: 9 130749 (1997-05-01), None

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