Coder-decoder for purged extended golay (22,7) codes

Details Coder-decoder for purged extended golay (22,7) codes Coder-decoder for purged extended golay (22,7) codes

1988-11-28

1990-05-15

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

341173, 371 371, H04Q 900, G07F 1112

Patent

active

049261690

ABSTRACT:
Transmitting and receiving apparatus for transmitting data which includes a purged extended Golay (22,7) code encoder at the transmitter for encoding digital data into constant weight unbalanced codewords representative of the digital data. The constant weight unbalanced codewords contain error correction bits and are preferably transmitted as balanced codewords. When the receiver decodes the original digital data, improved tracking and acquisition of the transmitted data is achieved.

REFERENCES:
patent: 4397022 (1983-08-01), Weng et al.
patent: 4414667 (1983-11-01), Bennett
patent: 4613860 (1986-09-01), Currie et al.
Clark et al., Error-Correction Coding for Digial Communications, 8/1982, Section 2.2.8.

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