US PATENT SUBCLASS 375 / 341
.~.~ Maximum likelihood decoder or viterbi decoder

Current as of: June, 1999
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375 /   HD   PULSE OR DIGITAL COMMUNICATIONS

316  DF  RECEIVERS {9}
340  DF  .~ Particular pulse demodulator or detector {3}
341.~.~ Maximum likelihood decoder or viterbi decoder

DEFINITION

Classification: 375/341

Maximum likelihood decoder or viterbi decoder:

(under subclass 340) Subject matter wherein a decoding method is used for choosing an estimate code word for each possible received sequence of a demodulation output.

(1) Note. This method is generally used for decoding the convolution codes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

262, for maximum likelihood decoder or viterbi decoder of systems using alternating or pulsating current.

SEE OR SEARCH CLASS

714, Error Detection/Correction and Fault Detection/Recovery,

786+, for digital data error correction having a convolution code, particularly subclasses 794 and 795 for maximum likelihood and Viterbi decoding.