| 摘要 |
PROBLEM TO BE SOLVED: To provide a self orthogonal coding/decoding circuit which can greatly improve error correction capability, using a simplified circuit configuration. SOLUTION: A code synchronous and serial/parallel conversion circuit 1 synchronizes codes and converts a receiving system Y into information systems I1 to IK and a testing system P in serial and parallel, and outputs them to a first stage decoding circuit 2. The circuit 2 inputs the information systems I1 to IK and the testing system P and corrects errors on the basis of them, and then it outputs first stage first to K-th information systems I1-C1 to 1K-C1 and a delay-testing system PD to a second stage decoding circuit 3. The second stage decoding circuit 3 corrects an error in the first stage first to K-th information systems I1-C1 to IK-C1, in which errors are decreased by the first stage decoding circuit 2, so as to further cause the number of errors to be reduced.
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