Method of transmitting voice coding information using cyclic red

Details Method of transmitting voice coding information using cyclic red Method of transmitting voice coding information using cyclic red

1995-10-31

1998-05-19

MacDonald, Allen R.

395 21, 395 22, 395 236, 395 237, 395 238, G10L 918

Patent

active

057547343

ABSTRACT:
A method of transmitting voice coding information is provided. First and second frames of voice coding information are provided. Each frame is then prioritized based on which bits need to be forward-error corrected, thus forming first and second prioritized frames. A six-bit CRC value is then computed based on the prioritized first and second frames. The six-bit CRC value is then split into first and second 3-bit CRC units. The first CRC unit is then combined with the first prioritized frame to form a modified first frame, and the second CRC unit is then combined with the second prioritized frame to form a modified second frame. The modified first and second frames are each then error correction coded to form first and second sets of symbols, respectively. The first and second set of symbols are then interleaved into a transmission unit, which is then transmitted.

REFERENCES:
patent: 4489418 (1984-12-01), Mazo
patent: 4649542 (1987-03-01), Nishimura et al.
patent: 5600754 (1997-02-01), Gardner et al.

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