Method and apparatus for coding

Details Method and apparatus for coding Method and apparatus for coding

1997-11-18

2000-05-16

Chin, Stephen

Pulse or digital communications

Pulse code modulation

375243, 395 233, 341 51, 341139, H04B 1404

Patent

active

060646985

ABSTRACT:
A code string having a changed compression ratio is regenerated at a high speed. A quantizing accuracy and a normalizing coefficient to be changed are calculated by a quantizing-accuracy and normalizing-coefficient determining circuit without needing to dequantize the generated code. Then, the previously generated code is requantized by a quantized-spectrum calculating circuit in accordance with the calculated quantizing accuracy and the normalizing coefficient.

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