Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2006-01-31
2006-01-31
Philippe, Gims (Department: 2713)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C370S487000
Reexamination Certificate
active
06993081
ABSTRACT:
A system and method for a seamless splicing/spot insertion strategy for MPEG-2 digital video/audio transport stream with no previously encoded information. This strategy, considering the time dependency between MPEG-2 frames, results in a new stream with smooth transition from a main stream to a spot stream without any encoded mark increasing possibilities for utilization of MPEG-2 contents. This strategy further facilitates local and remote switching (like local advertisement insertion) and produces successful decoding and presentation of all MPEG-2 packets around the splicing point. It takes into account several kinds of MPEG-2 related discontinuities: transport header continuity counter gaps, temporal reference discontinuity for frame presentation and PCR/PTS/DTS discontinuities.
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Anzick William J.
Brunheroto Jose R.
Laemen Frans
Nogima Julio
Schaffa Frank A.
Cameron Esq. Douglas W.
International Business Machines - Corporation
Philippe Gims
Scully Scott Murphy & Presser
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