Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2007-06-05
2007-06-05
Lamarre, Guy J. (Department: 2133)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
C714S701000, C714S786000, C714S788000, C714S762000, C714S794000, C714S795000, C714S780000, C375S341000, C375S262000
Reexamination Certificate
active
10862376
ABSTRACT:
To shorten a time required for a decoding process of a turbo codes without an increase in an operating frequency of the decoder by making concurrent operations of two soft-output decoders possible, the present invention provides soft-output decoders (101, 102) for outputting a reliability information likelihood, interleavers (103, 105) for interleaving transmission information to supply to the soft-output decoder, interleaver (104, 106) for interleaving a reliability information likelihood to supply to the soft-output decoder, and deinterleavers (107, 108) for deinterleaving the reliability information likelihood to supply to the soft-output decoder. Since these elements are constructed as two circuits having the same configuration and two soft-output decoders are operated concurrently in an iterative decoding process for a second time et seq. in the iterative decoding process of the turbo codes, a processing time required for the decoding process for the second time et seq. can be reduced by half.
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