Moving picture stream generation apparatus, moving picture...

Details Moving picture stream generation apparatus, moving picture... Moving picture stream generation apparatus, moving picture...

2007-10-31

2010-10-05

Rao, Andy S (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240150, C375S240250, C375S240260

Reexamination Certificate

active

07809060

ABSTRACT:
A moving picture stream generation apparatus that generates a moving picture stream that can be played back in trick-play such as variable-speed and reverse playback even in a coding format such as MPEG-4 AVC, in which flexible prediction structures are allowed. The moving picture stream generation apparatus includes: a trick-play information generation unit generating supplemental information, the supplemental information being referred to at the time of playback of each random access unit including one or more pictures; and a variable length coding unit generating a stream including the generated supplemental information and the one or more pictures by adding the supplemental information to each corresponding random access unit. At the top of each random access unit, an intra coded picture that can be decoded without depending on any picture is placed, and the supplemental information includes information specifying pictures to be decoded at the time when pictures included in each random access unit are played back in trick-play.

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