Quantizing process with dynamic allocation of the available bit

Details Quantizing process with dynamic allocation of the available bit Quantizing process with dynamic allocation of the available bit

1978-04-10

1979-02-27

Claffy, Kathleen H.

179 15BW, 179 1SA, H04J 602, H03K 1301

Patent

active

041420713

ABSTRACT:
A coding process, given a total number of available bits per unit time, allocates to each of a plurality of signal channels a number of bits proportional to information in the channel. The process is useful for transcoding BCPCM (Block Coded PCM) voice signals for lower bit rate and conserving transmission channel bandwidth.

REFERENCES:
patent: 2495739 (1950-01-01), Labin et al.
patent: 4048443 (1977-09-01), Crochiere et al.
A. Croisier, "Progress in PCM and Delta Modulation", Int'l Seminar on Digital Comm., Zurich, 1974.
R. E. Crochiere, "Digital Coding of Speech in Sub-Bands", BSTJ, Oct. 1976, pp. 1069-1085.

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