Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2005-09-13
2005-09-13
Corrielus, Jean B. (Department: 2637)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S341000, C714S794000, C714S796000
Reexamination Certificate
active
06944234
ABSTRACT:
A communication system is composed of an encoder encoding an input sequence to sequentially generate output codes X0, X1, . . . , and a decoder decoding the output codes by a MLSD (Maximum Likelihood Sequence Detection) method with a trellis memory length being L. The output code Xkof the output codes X0, X1, . . . is determined based on the input sequence for k that is not equal to i(N+1) with i being any of natural numbers and with N being a natural number. The output code Xi(N+1)of the output codes X0, X1, . . . are uniquely determined based on a subset of a set consisting of the output codes Xi(N+1)−L+1, Xi(N+1)−L+2, . . . , Xi(N+1)−1of the output codes X0, X1, . . . The subset includes the output code X1(N+1)−L+1of the output codes Xi(N+1)−L+1, Xi(N+1)−L+2, . . . , X1 (N+1)−1.
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