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Abstract

In a multi-channel demodulator, a detection-transition sample estimation scheme classified samples as left (L) or right (R) of a reference position within a symbol interval (110), or before (B) or after (A) a transition between symbols (120). When a sample is classified as L or B, the classification of the next sample is forced to R or A, respectively. A memory is provided for storing the contents of various registers when switching to processing of a different channel, and for retrieving from the memory stored data corresponding to previous processing of the different channel. Data read from the memory is written to a register downstream of the register from which it was taken when written to the memory. The read cycle of the memory is extended to ensure that a clock is available to load the data from memory into the downstream register after switching to the new channel.

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