Viterbi decoder with adaptive traceback

Details Viterbi decoder with adaptive traceback Viterbi decoder with adaptive traceback

2005-01-11

2005-01-11

Tse, Young T. (Department: 2637)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S341000

Reexamination Certificate

active

06842490

ABSTRACT:
In a convolutional decoder using partial traceback, L−1 data bits of a traceback beginning at a time step T are stored, where L is the traceback length; these L−1 data bits are the data bits corresponding to the L−1 time steps backwards from time step T. The maximum likelihood encoder state for time T is also saved. (The L-th data bit is the desired data bit as in conventional convolutional decoders.) In a subsequent partial traceback preferably beginning at time T+1 that ends at time step T, the maximum likelihood encoder state for time T determined from the partial traceback is compared with the stored encoder state for time T. If they correspond to the same encoder state, the L−1 stored data bits are designated as the last L−1 data bits of the current (partial) traceback.

REFERENCES:
patent: 5784392 (1998-07-01), Czaja et al.
patent: 6094739 (2000-07-01), Miller et al.
patent: 6324226 (2001-11-01), Sasagawa
patent: 6452985 (2002-09-01), Hatakeyama et al.
patent: 6647530 (2003-11-01), Kamada
patent: 6651215 (2003-11-01), Miyauchi et al.

Affiliated with

Also associated with

Rating

Viterbi decoder with adaptive traceback does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Viterbi decoder with adaptive traceback, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Viterbi decoder with adaptive traceback will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3396746