Speech codecs

Details Speech codecs Speech codecs

2003-10-02

2009-11-03

Han, Qi (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S229000, C704S230000

Reexamination Certificate

active

07613606

ABSTRACT:
A method of encoding a frame in a communication network using multiple codec modes, wherein the frame encoded by each codec mode is represented by multiple parameters. The method includes at least one stage, wherein the stage includes the steps of selecting one group from multiple groups of codec modes, wherein each group includes at least one codec mode and is arranged to have a common parameter characteristic. The method further includes encoding the frame with one of the codec modes from the selected group in dependence on the common parameter characteristic.

REFERENCES:
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patent: 6226607 (2001-05-01), Chang et al.
patent: 6647366 (2003-11-01), Wang et al.
patent: 2001/0023395 (2001-09-01), Su et al.
patent: 2002/0111798 (2002-08-01), Huang
patent: 2004/0030548 (2004-02-01), El-Maleh et al.
patent: 2004/0228537 (2004-11-01), Yeung et al.

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