H - Electricity – 03 – M
Patent
H - Electricity
03
M
354/67
H03M 13/09 (2006.01) H03M 13/23 (2006.01) H03M 13/35 (2006.01) H04B 1/66 (2006.01) H04L 1/00 (2006.01)
Patent
CA 2021618
A low-overhead method of protecting multi-pulse speech coders from the effects of severe random or fading pattern bit errors combines a standard error correcting code (convolutional rate 1/2 coding a.nd Viterbi trellis decoding) for protection in random errors with cyclic redundancy code (CRC) error detection for fading errors. Compensation for detected fading errors takes place within the speech coder. Protection is applied only to the perceptually significant bits in the transmitted frame.
Koch Steven Robert
Toy Raymond Leo
Zinser Richard Louis
Company General Electric
Craig Wilson And Company
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