Arbitrary average data rates for variable rate coders

Details Arbitrary average data rates for variable rate coders Arbitrary average data rates for variable rate coders

2007-01-22

2011-10-04

Dorvil, Richemond (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C370S320000, C370S329000, C370S332000, C370S333000

Reexamination Certificate

active

08032369

ABSTRACT:
Methods and apparatus are provided for achieving an arbitrary average data rate for a variable rate coder. One method includes selecting a set (e.g., a pair) of initial composite rates surrounding the arbitrary average data rate. A reallocation fraction is then calculated based on the initial composite rates. The reallocation fraction is used to reassign a number of frames from one component rate of an initial composite rate to another in order to achieve the arbitrary average data rate. Such a method may be configured such that selecting an initial composite rate on one side of (e.g., less than) the arbitrary average data rate implicitly selects the initial composite rate on the other side of the arbitrary average data rate.

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