Predictive coding device with increased resolution

Details Predictive coding device with increased resolution Predictive coding device with increased resolution

1990-06-08

1992-05-19

Shoop, Jr., William M.

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

375 25, 341106, H03M 300, H04B 1404

Patent

active

051152410

ABSTRACT:
There is provided a coding device in which when a difference value between a sample value and a predictive value is quantized into a coding code of n bits, in the case of quantizing by a quantization unit which can output (2.sup.n-1 -1) coding codes corresponding to positive quantization representative values, (2.sup.n-1 -1) coding codes corresponding to negative quantization representative values, and an additional coding code corresponding to the quantization representative value of the difference value 0, the one remaining coding code is selective made to correspond to the positive or to the negative quantization representative values, respectively.

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