Interactive video distribution systems – Video distribution system components – Headend
Reexamination Certificate
2005-04-29
2010-06-08
Koenig, Andrew Y (Department: 2423)
Interactive video distribution systems
Video distribution system components
Headend
C370S503000, C375S240280
Reexamination Certificate
active
07735111
ABSTRACT:
A system and method for merging of multiple encoded audio and video streams into a single program in the transport stream enables playback of any audio stream with any video stream. This is accomplished by first locking the frequency of audio and video input streams for a plurality of different programs to a source clock, independently encoding each program with its own PCR and PTS into a program stream, multiplexing the program streams into a transport stream, and then synchronizing the PCR and PTS of the program streams to a declared master PCR.
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Schirling, Peter (Editor); “Multiplexing and Synchronization”; MPEG-2 Systems white paper; International Organization for Standardization for Organisation Internaionale de Normalisation ISO/IEC/ JTC 1/SC 29/WG11 Coding of Moving Pictures and Audio; Oct. 2005; Nice, France; http://www.chiariglione.org/mpeg/technologies/mp02-m%26s/index.htm; 3 pages.
Michener James A.
Stranger Leon J.
Featherstone Mark D
Koenig Andrew Y
The DIRECTV Group Inc.
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