H03M13/39 - CPC Classification Index

ClassID:

222854 ⎘

H03M13/39 - CPC Classification

Classification description:

Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes; Decoding methods or techniques, not specific to the particular type of coding provided for in groups - Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes

Sub-classes:

H03M13/3905 » {Maximum a posteriori probability [MAP] decoding and approximations thereof based on trellis or lattice decoding, e.g. forward-backward algorithm, log-MAP decoding, max-log-MAP decoding; MAP decoding also to be found in } 192
H03M13/3944 » {for block codes, especially trellis or lattice decoding thereof} 26
H03M13/395 » {using a collapsed trellis, e.g. M-step algorithm, radix-n architectures with n>2} 53
H03M13/3955 » {using a trellis with a reduced state space complexity, e.g. M-algorithm or T-algorithm} 22
H03M13/3961 » {Arrangements of methods for branch or transition metric calculation} 96
H03M13/3966 » {based on architectures providing a highly parallelized implementation, e.g. based on systolic arrays} 7
H03M13/3972 » {using sliding window techniques or parallel windows} 145
H03M13/3977 » {using sequential decoding, e.g. the Fano or stack algorithms} 27
H03M13/3983 » {for non-binary convolutional codes} 6
H03M13/3988 » {for rate k/n convolutional codes, with k>1, obtained by convolutional encoders with k inputs and n outputs} 28
H03M13/3994 » {using state pinning or decision forcing, i.e. the decoded sequence is forced through a particular trellis state or a particular set of trellis states or a particular decoded symbol} 51
H03M13/41 » using the Viterbi algorithm or Viterbi processors 360
H03M13/42 » {MAP decoding or approximations thereof based on trellis or lattice decoding, e.g. forward-backward algorithm, log-MAP decoding, max-log-MAP decoding } 6

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