Speech transmission method using speech frame interpolation

Details Speech transmission method using speech frame interpolation Speech transmission method using speech frame interpolation

1992-04-20

1993-11-09

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 81, 371 31, H04J 300

Patent

active

052609391

ABSTRACT:
A speech transmission method utilizes a speech frame length having a time period within which a speech waveform remains substantially steady-state, and the speech frame length is selected to be 1/M the time period of one TDM or TDMA frame. For each speech frame, speech signal is coded, from which are selected M different speech codes including two speech codes that are spaced one or more speech frames apart, and the selected M speech codes are combined into composite codes. Each composite code is inserted in one time slot of each TDM or TDMA frame.

REFERENCES:
patent: 4215335 (1980-07-01), Doi et al.
patent: 4750167 (1988-06-01), Meyer
patent: 4901319 (1990-02-01), Ross
patent: 5020056 (1991-05-01), Chennakeshu

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