Mechanism for transmitting elementary streams in a broadcast...

Details Mechanism for transmitting elementary streams in a broadcast... Mechanism for transmitting elementary streams in a broadcast...

2004-08-12

2008-10-07

Cardone, Jason (Department: 2145)

Electrical computers and digital processing systems: multicomput

Computer network managing

C709S231000, C709S232000, C710S052000

Reexamination Certificate

active

07433946

ABSTRACT:
The techniques and mechanisms described herein are directed at transmitting elementary streams in a broadcast environment. The mechanisms provide a buffer controller and packet scheduler that allow a media format to be transmitted through the broadcasting environment in a manner resulting in a low channel switch delay. A buffer-fullness indicator allows the operation with various types of decoders. A lower bound and an upper bound are calculated for each frame within the elementary stream. The lower bound corresponds to an earliest time for sending the frame without causing an overflow condition within a decoder buffer. The upper bound corresponds to a latest time for sending the frame without causing an underflow condition within the decoder buffer. A send time is then scheduled based on the lower bound and the upper bound that determines when a packet associated with the frame is transmitted over a channel in a broadcast environment.

REFERENCES:
patent: 2005/0022253 (2005-01-01), Chen et al.

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