| 摘要 |
The method consists in coding a binary word in accordance with a plurality of coding tables, the coding table for each binary word to be coded being chosen as a function of at least one supplementary information item to be coded. In a first variant, a word of p bits is coded with a symbol made up of q ternary digits, p and q being chosen so that the number of symbols having a weight equal to 0 is at least equal to 2x2<p>. A first coding table contains 2<p >symbols having a weight equal to 0. A second coding table contains 2<p>other symbols having a weight equal to 0. In a second variant, p and q are chosen so that the number of symbols having a weight equal to 0 or a weight equal to ±1 is at least equal to 3x2<p>; a first coding table contains 2<p >symbols having a weight equal to 0; a second coding table contains 2<p >other symbols having a weight equal to -1; and a third coding table contains 2<p >other symbols having a weight equal to +1. In a third variant, q binary symbols are used; p and q are chosen so that q is greater than or equal to p+1; a first coding table contains 2<p >symbols; and a second coding table contains 2<p >other symbols. Application in particular to data transmission networks conforming to the IEEE 802.3 standard.
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