Coding method, coder and decoder for digital signal, and recordi

Details Coding method, coder and decoder for digital signal, and recordi Coding method, coder and decoder for digital signal, and recordi

1993-12-27

1996-05-07

Gregory, Bernarr E.

Pulse or digital communications

Repeaters

Testing

380 34, 375242, 375243, 341155, 341200, H04B 169

Patent

active

055153950

ABSTRACT:
In quantizing a digital signal in respective frequency bands by quantization units and transmitting (transmitting or recording) such quantized digital signal, second quantization accuracy information indicating a difference between first quantization accuracy information serving as a reference and actual quantization accuracy information from a quantization accuracy determination unit is coded at a quantization accuracy information coding unit to transmit the coded quantization accuracy information to thereby realize efficient coding while maintaining a degree of freedom in the manner of giving quantization accuracy. Accordingly, more efficient coding can be attained while leaving the degree of freedom in the manner of giving quantization accuracy by a lesser number of bits.

REFERENCES:
patent: 5260980 (1993-11-01), Akagiri et al.
patent: 5301205 (1994-04-01), Tsutsui et al.

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