Convolutional encoding/decoding apparatus with fixed bit inserti

Details Convolutional encoding/decoding apparatus with fixed bit inserti Convolutional encoding/decoding apparatus with fixed bit inserti

1992-08-14

1995-07-25

Baker, Stephen M.

Excavating

H03M 1312

Patent

active

054369185

ABSTRACT:
The invention intends to improve an error correcting capability in an error correction encoding/decoding apparatus. On the encoding side, after a fixed bit of 0 or 1 was inserted into information signal series to be convolutional correction encoded, the resultant information signal series is convolutionally encoded. On the decoding side, by using the fixed bit inserting position stored in a fixed bit inserting position storing circuit, the information signal series is decoded while limiting the state transition corresponding to the bit position at which the information bit is the fixed bit into only one kind that is decided by the value of the fixed bit.

REFERENCES:
patent: 4888769 (1989-12-01), Deal
patent: 4908827 (1990-03-01), Gates
patent: 5128942 (1992-07-01), Kojima
Hagenauer, J. et al., "The Performance of Rate-Compatible Punctured Convolutional Codes for Future Digital Mobile Radio", IEEE CH2622-9, 1988, pp. 22-29.

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