| 摘要 |
A redundant binary code conversion circuit consists of first to third RBC conversion circuits 261 to 263. The circuit 261 consists of decoders 30 to 38 of the same construction, the circuit 262 consists of RBC 2-digit conversion circuits 40 to 47 of the same construction and the circuit 263 consists of decoders 50 to 58 of the same construction. The circuit 261, as an exception, converts RBC patterns '...TT011...'('T' is -1), '...110TT...', '...TT1...' and '...11T...' of n digits to RBC patterns '...T10T0T...', '...1T0101...', '...T10T...' and '...1T01...' of (n+1) digits, respectively, circuit 262 converts RBC patterns '...1T...' and '...T1...' to RBC patterns '...01...' and '...0T...', respectively, and circuit 263 converts RBC patterns '...10TT...' and '...T011...' to RBC patterns '...0101...' and '...0T0T...', respectively.
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