Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission
Reexamination Certificate
2007-12-18
2007-12-18
Armstrong, Angela (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
For storage or transmission
Reexamination Certificate
active
10355209
ABSTRACT:
A system and method reduces the effects of the bit-error induced distortion of decoded voice transmission by assigning vectors that are close or similar in Euclidean distance to respective indices that are close in Hamming distance. The system calculates a first distortion sum of the distance error induced by single, double or N bit error possibilities, switches vector assignments and calculates a second distortion sum. If the second sum is less than the first sum the vector swap is maintained.
REFERENCES:
patent: 4791654 (1988-12-01), De Marca et al.
patent: 6453287 (2002-09-01), Unno et al.
patent: 0 294 012 (1997-06-01), None
A fast mean-distance-ordered partial codebook search algorithm for image vector quantization, Ra, S.-W.; Kim, J.-K.;Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on vol. 40, Issue 9, Sep. 1993 pp. 576-579.
Fast weight-ordered search algorithm for image vector quantisation, Ra, S.W.; Kim, J.K.; Electronics Letters ,vol. 27, Issue 22, Oct. 24, 1991 pp. 2081-2083.
Ra et al, A fast mean-distance-ordered partial codebook search algorithm for image vector quantization, IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, vol. 40, Issue 9, Sep. 1993 pp. 576-579.
De Marca, J.R.B., et al., “An Algorithm for Assigning Binary Indices to the Codevectors of a Multi-Dimensional Quantizer”, IEEE, vol. 1, Jun. 7, 1987, pp. 1128-1132, XP001149047.
Kovesi, B. et al., “A Fast Robust Stochastic Algorithm For Vector Quantizer Design For Nonstationary Channels”, IEEE, vol. 1, May 9, 1995, pp. 269-272, XP010625222.
Cheng, N.T., et al., “Robust Zero-Redundancy Vector Quantization For Noisy Channels”, IEEE International Conference, Jun. 11, 1989, pp. 1338-1342, XP010081274.
Supplementary European Search Report.
Armstrong Angela
Duane Morris LLP
Harris Corporation
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