Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2005-11-22
2005-11-22
Decady, Albert (Department: 2133)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
Reexamination Certificate
active
06968495
ABSTRACT:
A super high speed Viterbi decoder and decoding method with a circularly connected 2-dimensional analog processing cell array. The Viterbi decoder has a 2-dimensional parallel processing structure, in which analog processing cells are located at nodes of a trellis diagram. An output column of the analog processing cells is connected to a decoding column. Thus, the output column becomes a column right before the decoding column. A reference input signal given at a decoding column is propagated to the whole network, while its magnitude is reduced by an amount of an error metric on each branch. The circuit-based decoding is done by adding trigger signals to disconnect the path corresponding to logic 0 (or 1), and by observing its effect at the output column.
REFERENCES:
patent: 4087787 (1978-05-01), Acampora
patent: 6504515 (2003-01-01), Holt et al.
“Error Bounds for Convolutional Codes and an Asymptotically Optimum Decoding Algorithm”, by Andrew VITERBI,IEEE Transactions of Information Theory, vol. IT-13, No. 2, Apr. 1967, pp. 260-269.
“Maximum-Likelihood Sequence Estimation of Digital Sequences in the Presence of Intersymbol Interference”, by David Forney, Jr.,IEEE Transactions on Information Theory, vol. IT-18, No. 3, May 1972, pp. 363-377.
“BiCMOS Circuits for Analog Viterbi Decoders”, by Mohammed Shakiba et al.,IEEE Transactions on Circuits and Systems-II: Analog and Digital Signal Processing, vol. 45, No. 12, Dec. 1998, pp. 1527-1537.
“Simulated Performance of Analog Viterbi Detectors”, by Richard Spencer,IEEE Journal on Selected Areas in Communications, vol. 10, No. 1, Jan. 1992, pp. 277-288.
Park Young Su
Son Hong Rak
De'cady Albert
Gandhi Dipakkumar
Greenblum & Bernstein P.L.C.
Kim Hyoung Suk
LandOfFree
Super high speed viterbi decoder using circularly connected... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Super high speed viterbi decoder using circularly connected..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Super high speed viterbi decoder using circularly connected... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3493560