| 摘要 |
A communications channel comprises a seed selector that selectively removes X M-bit symbols of user data from a seed set comprising Y M-bit symbols and that selects a scrambling seed from Y-X symbols remaining in the seed set, where X, Y and M are integers greater than one. A Hamming weight coding device that determines a Hamming weight of symbols of scrambled user data that are generated based on the user data and the selected scrambling seed and that selectively codes the symbols depending upon the determined Hamming weight.
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