| 摘要 |
1. An error protection method adapted to the transmission of framed digital data, wherein each frame comprises a number N1 of bits to be particularly protected and a number N2 of other bits, characterized in that it consists, on the transmission side, in encoding the N1 bits to be protected by an extinction correction encoding that introduces a redundancy R, the R.N1 bits resulting from this encoding on the one hand, and the N2 other bits on the other hand being distributed in constant proportions over a number B of data blocks forming a frame and being transmitted successively and independently from one another, and in that, on the reception side, a frame is declared valid when at most B(R-1)/R blocks are extinguished or false, the protected N1 bits of a valid frame being restituted via the extinction correction decoding, and the unprotected N2 /B bits of the extinguished or false blocks of a valid frame being replaced by a predetermined sequence of N2 /B bits.
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