Multi-rate viterbi decoder

Details Multi-rate viterbi decoder Multi-rate viterbi decoder

2007-06-12

2007-06-12

Torres, Joseph D. (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S795000, C714S794000

Reexamination Certificate

active

10896268

ABSTRACT:
A method and system for decoding a data symbol sequence that has been previously encoded using one or more unique code word polynomials in which at least one unique code word polynomial is used more than once. A set of 2d-1unique branch metrics is computed, using the unique code word polynomials, where d is the number of unique code word polynomials. The computed set of 2d-1unique branch metrics is stored in a memory. Path metrics are then calculated, based on the stored set of 2d-1unique branch metrics. A decoded data symbol sequence is generated based on the computed path metrics.

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George C. Clark and J. Bibb Cain, “Error-Correction coding for Digital Communicatins”, Plenum Press, 1981.

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