Communications: electrical – Digital comparator systems
Patent
1975-06-30
1977-01-11
Atkinson, Charles E.
Communications: electrical
Digital comparator systems
G06F 1110
Patent
active
040030202
ABSTRACT:
Digital words are transmitted together with associated parity or checking digits. The parity bits are each related to a group of bits of the same significance from several different words. At a receiving station, a parity bit is generated for the same group from the incoming words and compared with the corresponding received parity bit. When the generated and received parity bits differ, a value is estimated for each word containing a bit from the respective group, and the estimated and received values for the word are compared to detect any word containing an erroneous bit, which bit is then corrected.
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Bossen and Patel, Encoder and Decoder for the 2-Redundant B-Adjacent Perfect Codes, IBM Tech. Discl. Bulletin, vol. 14, No. 3, Aug. 1971, 680-682.
Atkinson Charles E.
Standard Telephones & Cables Limited
The Marconi Company Limited
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