Report: Parallel scrambling techniques for digital multiplexers

Scrambling of a digital bit stream is required in order to reduce interference (by randomizing a bit stream), to provide a high transition rate, and to suppress static pattern-dependent jitter.
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Two fundamental scrambling techniques, self- and frame-synchronous scrambling, are widely used in transmission systems. Self-synchronous scrambling has an error multiplication effect and may not work properly for consecutive input of zeros and ones.
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For a certain periodic input, the scrambled sequence has a periodicity the same as that of the input.
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