Method and apparatus for providing rate control

Details Method and apparatus for providing rate control Method and apparatus for providing rate control

2004-12-30

2010-06-29

Banks Harold, Marsha D (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240010, C375S240020

Reexamination Certificate

active

07746928

ABSTRACT:
The present invention discloses a system and method for providing a rate control to an encoder, e.g., a H.264/MPEG-4 AVC compliant encoder. Specifically, the rate control method computes a target rate for a segment, where the segment comprises at least one slice of macroblocks. In turn, a target rate is computed for the at least one slice of macroblocks from the target rate for the segment. In turn, a quantization parameter (QPj) is computed for a macroblock (j) of the macroblocks from the target rate for the at least one slice. Finally, the macroblock (j) is encoded in accordance with said quantization parameter (QPj).

REFERENCES:
patent: 5949490 (1999-09-01), Borgwardt et al.
patent: 6115421 (2000-09-01), Katta et al.
patent: 6151362 (2000-11-01), Wang
patent: 7054371 (2006-05-01), Kim
patent: 2002/0163966 (2002-11-01), Ramaswamy
patent: 2005/0175093 (2005-08-01), Haskell et al.

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