Method and apparatus for coding signal while adaptively allocati

Details Method and apparatus for coding signal while adaptively allocati Method and apparatus for coding signal while adaptively allocati

1997-04-14

1999-01-05

Dorvil, Richemond

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704219, G10L 700

Patent

active

058571680

ABSTRACT:
A signal coding apparatus includes a signal dividing section for dividing an input signal in units of frames and in units of bands, a pulse allocating section for determining a performance request value for each of the bands, for determining a number of pulses for each of the bands from the performance request value for the band, and for adaptively allocating the determined numbers of pulses to the bands for every frame, and a plurality of coding circuits respectively provided for the bands. Each of said plurality of coding circuits generates a transmission signal for a corresponding band for every frame based on the number of pulses allocated to the corresponding band.

REFERENCES:
patent: 5170396 (1992-12-01), Rivers et al.
patent: 5208862 (1993-05-01), Ozawa
patent: 5261027 (1993-11-01), Taniguchi et al.
patent: 5598504 (1997-01-01), Miyano
patent: 5682407 (1997-10-01), Funaki
patent: 5687284 (1997-11-01), Serizawa et al.
M.R. Schroeder et al., "Code-Excited Linear Prediction (CELP): High-quality Speech At Very Low Bit Rates", Proceedings ICASSP, 1985, pp. 937-940.
W.B. Kleijn et al., "Improved Speech Quality and Efficient Vector Quantization in SELP", Proceedings ICASSP, 1988, pp. 155-158.
M. Yong et al., "Subband Vector Excitation Coding with Adaptive Bit-Allocation", Proceedings ICASSP, 1989, pp. 743-746.
T. Nomura et al., "LSP Coding Using VQ-SVQ with Interpolation in 4.075 KBPS M-LCELP Speech Coder", Proceeding Mobile Multimedia Communications, 1993, pp. B.2.5-1 to B.2.5-4.
J.D. Johnston, "Transform Coding of Audio Signals Using Perceptual Noise Criteria", IEEE Journal on Selected Areas in Communications, vol. 6, No. 2, Feb. 1988, pp. 314-323.
P.O. Vaidyanathan, "Multirate Digital Filters, Filter Banks, Polyphase Networks, and Applications: A Tutorial", Proceedings of the IEEE, vol. 78, No. 1, Jan. 1990, pp. 56-93.
P. Kroon et al., "Pitch Predictors with High Temporal Resolution", Proceedings ICASSP, 1990, pp. 661-664.
C. Laflamme et al., 16 KBPS Wideband Speech Coding Technique Based On Algebraic CELP, Proceedings ICASSP, 1991, pp. 13-16.
Y. Linde et al., "An Algorithm for Vector Quantizer Design", IEEE Transactions on Communications, vol. COM-28, No. 1, Jan. 1980, pp. 84-94.
"Signal Analysis and System Identification", by Corona-sha, 1988, pp. 82-87.
N. Sugamura et al., "Speech Data Compression by LSP Speech Analysis synthesis Technique", Japanese Telecommunication Institute J64-A, 1981, pp. 599-606.

Affiliated with

Also associated with

Rating

Method and apparatus for coding signal while adaptively allocati does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for coding signal while adaptively allocati, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for coding signal while adaptively allocati will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-869487