| http://www.w3.org/ns/prov#value | - A mapping circuit translates each message sequence to one of M signal patterns of length L bits, where M>2N, and wherein: each time interval T is divided into K sub-intervals, where K is an integer greater than one; each of the M signal patterns contains transitions in signal levels separated by at least T; and transitions in signal levels are permitted not only at integer multiples of the interva
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