Viterbi decoding method and viterbi decoding apparatus

Details Viterbi decoding method and viterbi decoding apparatus Viterbi decoding method and viterbi decoding apparatus

H - Electricity

03

M

H03M 13/00 (2006.01) H03M 7/00 (2006.01) H03M 13/41 (2006.01) H04L 25/497 (2006.01)

Patent

CA 2112016

In a Viterbi decoding method or apparatus, a reception code, produced by precoding a transmission code and transmitting the precoded transmission code through a partial response transmission path, is processed to detect whether the present state is a plus (+) merge, a minus (-) merge or a no merge state. A provisional value is estimated for the transmission code corresponding to the reception code, and the provisional value is stored in a buffer. When the present state is a (+) or (-) merge, that is, other than a no merge state, a decoded value is obtained for the transmission code and the provisional value in the buffer is updated with the decoded value.

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