Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2008-03-18
2008-03-18
Fan, Chieh M. (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S341000, C375S262000, 74, 74, 74, 74, 74
Reexamination Certificate
active
11087372
ABSTRACT:
A turbo decoder is disclosed that receives a demodulated input signal before a hard decision, including blocks each of multiple data units, and outputs a decoded signal block by block. The turbo decoder includes a decoding part outputting a decoded output signal and extrinsic likelihood information based on the input signal and preliminary likelihood information, the extrinsic likelihood information being used as the preliminary likelihood information in creating the next output signal; a specification part specifying a data unit of the block with respect to which no error is detected in error checking performed on each data unit of the hard decision output signal; and a replacement part inputting a signal sequence, created by replacing signal data before the hard decision with those after the hard decision with respect to the data unit specified by the specification part, to the decoding part as the input signal.
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Fan Chieh M.
Lee Siu M
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