Generation of valid program clock reference time stamps for...

Details Generation of valid program clock reference time stamps for... Generation of valid program clock reference time stamps for...

2006-05-19

2009-06-16

Cho, Hong (Department: 2419)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S503000

Reexamination Certificate

active

07548543

ABSTRACT:
The present invention is suitable for use in a communications system that transmits a transport stream, such as an MPEG stream. The present invention addresses the need of generating a valid value for a duplicated packet in the transport stream. A first embodiment of the present invention interpolates between a PCR value in the duplicated packet and the PCR value in the next PCR packet. A second embodiment of the present invention copies an original packet along with its PCR value into a duplicate packet and a PCR-bearing packet. Subsequently, the present invention interpolates a new value for the original packet based on the original value in the duplicated PCR-bearing packet and the previous value in a PCR-bearing packet.

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patent: 2005/0180732 (2005-08-01), Ono
patent: 1 478 184 (2004-11-01), None
“Information Technology-Generic coding of moving pictures and associated audio information: Systems.” Int'l Standard ISO/IEC, vol. 13818-1, 1st Edition, Apr. 15, 1006.
International Search Report of corresponding international application PCT/US2007/068639 mailed Nov. 22, 2007.

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