Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2007-07-31
2007-07-31
Baker, Stephen M. (Department: 2133)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
C714S780000
Reexamination Certificate
active
10802515
ABSTRACT:
Techniques and systems for design and use of generalized LDPC codes. A generalized LDPC code comprises a set of codewords producing valid results when submitted to a validator comprising a set of variable nodes and a set of check nodes, with outputs of the variable nodes being connected to inputs of the check nodes by interleaver edges. Each check node and variable node is in the form of a code, with the output of a node being valid if its inputs form a valid codeword. An extrinsic information transfer function (EXIT) chart is used to form a check node curve and a variable node curve is matched to the check node curve. The variable nodes are then constructed so as to provide the information transfer properties indicated by the variable node curve.
REFERENCES:
patent: 4295218 (1981-10-01), Tanner
Chung, S. et al., “On the Design of Low Density Parity-Check Codes within 0.0045 dB of the Shannon Limit”, IEEE Communications Leters, vol. 5, No. 2, Feb. 2001, pp. 58-60.
Yeo, E., et al., “VLSI Architectures for Iterative Decoders in Magnetic Recording Channels”, IEEE .Transactions on Magnetics, vol. 37, No. 2, Mar. 2001, pp. 748-755.
ten Brink, S., “Convergence Behavior of Iteratively Decoded Parallel Concatenated Codes”, IEEE Transactions on Communications, vol. 49, No. 10, Oct. 2001, pp. 1727-1737.
Yeo, E., et al., “High Throughput Low-Density Parity-Check Decoder Architectures”, IEEE Globecom '01, Nov. 2001, pp. 3019-3024.
ten Brink, S., et al., “Design of Low-Density Parity Check Codes for Multi-Antenna Modulation and Detection”, submited to IEEE Transactions on Communications, Jun. 2002, pp. 1-8.
ten Brink, s., et al., “Design of Repeat-Accumulate Codes for Iterative Detection and Decoding”, IEEE Transactions on Signal Processing, vol. 51, No. 11, Nov. 2003, pp. 2764-2772.
Ratzer, E., “Intersected Low-Density Parity-Check and Convolutional Codes”; Postgraduate Research Conference in Electronics, Photonics, Communications and Software, 5 pages, Apr. 2002.
Franceschini, M., et al., “EXIT Chart-based Design of LDPC Codes for Inter-Symbol Interference Channels”, 14th IST Mobile & Wireless Communications Summit, Jun. 2005, 5 pages.
Ngatched et al., “Efficient Decoding of Generalized Low-Density Parity-Check Codes Based on Long Component Codes”, WCNC 2003, Mar. 2003, pp. 705-710.
Ashikhmin Alexei
Brink Stephan Ten
Kramer Gerhard Guenter Theodor
Baker Stephen M.
Lucent Technologies - Inc.
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