Vector quantizer

Details Vector quantizer Vector quantizer

1994-09-13

1997-06-03

Tung, Kee M.

395 23, 395 229, 395 228, G10L 302

Patent

active

056363222

ABSTRACT:
A vector quantizer is disclosed which performs low bit rate coding of time sequential signals such as speech signals and image signals. A basis vector set is provided consisting of basis vectors greater in number than a predetermined number of bits and correspondingly, from the basis vector set, subsets corresponding in number to at most a predetermined number of bits are formed. The subsets thus formed include those consisting of at most a single basis vector and coefficient vector subsets formed from the coefficient vector set and determined according to the formed basis vector subsets.

REFERENCES:
patent: 4817157 (1989-03-01), Gerson
patent: 4922508 (1990-05-01), Moriya
patent: 5323486 (1994-06-01), Taniguchi et al.
patent: 5396576 (1995-03-01), Miki et al.
B.H. Juang and A. H. Gray, "Multiple Stage Vector Quantization for Speech Coding", IEEE Proc. of Intl. Conf. on Acous., Speech and Signal Proc., 1982.
T. Moriya, "Two-Channel Conjugate Vector Quantizer for Noisy Channel Speech Coding", IEEE Journal on Selected Areas in Communications, vol. 10, No. 5, Jun. 1992.
J.H. Conway and N.J.A. Sloane, "Fast Quanitizing and Decoding Algorithims for Lattice Quanitzers and Codes", IEEE Trans. Inf. Theory, vol. IT-28, pp. 227-232, Mar. 1982.
R.M. Gray, "Source Coding Theory", Ch. 5.5, Kluwer Academic Publishers, 1990, pp 126-127.
I.A. Gerson and M.A. Jusiuk, "Vector Sum Excited Linear Prediction (VSELP) Speech Coding at 8 KBPS", Chicago Corp. Research and Development Center, Motorola, Inc., IEEE, 1990.
J.H. Chen, "High-Quality 16 KB/S Speech Coding with a One-Way Delay Less Than 2 MS", AT&T Bell Laboratories, IEEE, 1990.
B.S. Atal, "Predictive Coding of Speech at Low Bit Rates", IEEE Transactions on Communications, vol. Com-30, No. 4, Apr. 1982.

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