Video device with reed-solomon erasure decoder and method thereo

Details Video device with reed-solomon erasure decoder and method thereo Video device with reed-solomon erasure decoder and method thereo

1996-08-22

1999-02-23

Baker, Stephen M.

Excavating

371 374, H03M 1300

Patent

active

058751998

ABSTRACT:
A video device is provided having a more efficient Reed-Solomon decode methodology. The Reed-Solomon decoder advantageously receives pre-indentified error locations and, given those locations, focuses entirely upon correcting (as opposed to detecting) erroneous symbols at those locations. A noise detector is used to identify erroneous symbol intervals, and forwards information signifying erroneous symbol locations or erases symbols within those locations. The detected error locations are forwarded to the Reed-Solomon decoder which then adds (or subtracts) correction quantities to symbols within those locations. Given pre-identified error locations, the Reed-Solomon decoder can correct double the number of corrupted symbols. The decoder, herein provided, therefore proves beneficial in high speed decoding of video signals sent from a video device having forward error correction.

REFERENCES:
patent: 4641324 (1987-02-01), Karsh et al.
patent: 4829525 (1989-05-01), Sugiyama et al.
patent: 4845713 (1989-07-01), Zook
patent: 4928288 (1990-05-01), D'Aria et al.
patent: 5051998 (1991-09-01), Murai et al.
patent: 5088113 (1992-02-01), Wei
patent: 5181209 (1993-01-01), Hagenauer et al.
patent: 5216677 (1993-06-01), Takagi et al.
patent: 5390195 (1995-02-01), Brush
patent: 5430743 (1995-07-01), Marturano et al.
patent: 5457704 (1995-10-01), Hoeher et al.
patent: 5548684 (1996-08-01), Wang et al.
Sklar, Bernard, Digital Communcations: Fundamentals and Applications, 1988 by Pretice Hall, p. 4.
Whitaker, S. et al., "Reed Solomon VLSI Codec for Advanced Television", IEEE Transactions on Circuits and Systems for Video Technology, vol. 1, No. 2, Jun. 1991, pp. 230-236.
Hagenauer, J., "Forward Error Correction Coding for Fading Compensation in Mobile Satellite Channels", IEEE Journal on Selected Areas in Communications, vol. SAC-5, No. 2, Feb. 1987, pp. 215-225.
Arazi, B., "A Commonsense Approach to the Theory of Error Correcting Codes", The MIT Press, 1988, p. 137, Dec. 1988.
Deng, R., et al., "High Rate Concatenated Coding Systems Using Bandwidth Efficient Trellis Inner Codes", IEEE Transactions on Communications, vol. 37, No. 5, May 1989.
Deng, R., et al., High Rate Concatenated Coding Systems Using Multidimensional Bandwidth-Efficient Trellis Inner Codes, IEEE Transactions on Communications, vol. 37, No. 10, Oct. 1989, pp. 1091-1095.
Hagenauer, J. et al., "A Viterbi Algorithm with Soft-Decision Outputs and its Applications", IEEE CH2682-3/89/0000-1680, pp. 1680-1686, Dec. 1989.

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