Controlling apparatus and method for bit rate

Details Controlling apparatus and method for bit rate Controlling apparatus and method for bit rate

2005-05-24

2008-11-11

Vo, Huyen X. (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S230000, C704S500000

Reexamination Certificate

active

07451080

ABSTRACT:
An apparatus and a method for controlling a bit rate are provided. The apparatus and method includes a buffer for storing information as to a bit rate of a frame immediately preceding a frame to be compressed, a bit rate controller for generating a target bit rate and an expected bit rate of the frame to be compressed based on the bit rate of the immediately-preceding frame and calculating a target quantization level to be applied to the frame to be compressed based on the target bit rate, with the expected bit rate and a quantization level applied to the immediately-preceding frame. The apparatus and method also includes a quantizer for performing a quantization process based on the target quantization level.

REFERENCES:
patent: 1995-0028521 (1999-05-01), None
patent: 2001-0064266 (2000-07-01), None
patent: 1999-0009352 (2001-07-01), None
patent: WO 00/18137 (2000-03-01), None
patent: WO 02/089486 (2002-11-01), None
patent: WO02089486 (2002-11-01), None
patent: WO 03/028237 (2003-03-01), None

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