Noise feedback coding method and system for performing...

Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission

Reexamination Certificate

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C704S220000, C704S230000

Reexamination Certificate

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06980951

ABSTRACT:
A method of searching a plurality of Vector Quantization (VQ) codevectors for a preferred one of the VQ codevectors to be used as an output of a vector quantizer for encoding a speech signal, includes determining a quantized prediction residual vector, and calculating a corresponding unquantized prediction residual vector and the energy of the difference between these two vectors (that is, a VQ error vector). After trying each of the plurality of VQ codevectors, the codevector that minimizes the energy of the VQ error vector is selected as the output of the vector quantizer

REFERENCES:
patent: 2927962 (1960-03-01), Cutler
patent: 4220819 (1980-09-01), Atal
patent: 4317208 (1982-02-01), Araseki et al.
patent: 4776015 (1988-10-01), Takeda et al.
patent: 4791654 (1988-12-01), De Marca et al.
patent: 4811396 (1989-03-01), Yatsuzuka
patent: 4860355 (1989-08-01), Copperi
patent: 4896361 (1990-01-01), Gerson
patent: 4918729 (1990-04-01), Kudoh
patent: 4963034 (1990-10-01), Cuperman et al.
patent: 4969192 (1990-11-01), Chen et al.
patent: 5007092 (1991-04-01), Galand et al.
patent: 5060269 (1991-10-01), Zinser
patent: 5195168 (1993-03-01), Yong
patent: 5204677 (1993-04-01), Akagiri et al.
patent: 5206884 (1993-04-01), Bhaskar
patent: 5313554 (1994-05-01), Ketchum
patent: 5487086 (1996-01-01), Bhaskar
patent: 5493296 (1996-02-01), Sugihara
patent: 5651091 (1997-07-01), Chen
patent: 5675702 (1997-10-01), Gerson et al.
patent: 5710863 (1998-01-01), Chen
patent: 5745871 (1998-04-01), Chen
patent: 5790759 (1998-08-01), Chen
patent: 5826224 (1998-10-01), Gerson et al.
patent: 5873056 (1999-02-01), Liddy et al.
patent: 5963898 (1999-10-01), Navarro et al.
patent: 6014618 (2000-01-01), Patel et al.
patent: 6055496 (2000-04-01), Heidari et al.
patent: 6131083 (2000-10-01), Miseki et al.
patent: 2002/0069052 (2002-06-01), Chen
patent: 2002/0072904 (2002-06-01), Chen
patent: 0 573 216 (1993-12-01), None
Marcellin, M.W. et al., “Predictive Trellis Coded Quantization of Speech,”IEEE Transactions on Acoustics, Speech, And Signal Processing,vol. 38, No. 1, IEEE, pp. 46-55 (Jan. 1990).
Copy of Written Opinion from PCT Appl. No. PCT/US01/42786, 4 Pages (mailed Feb. 21, 2003).
U.S. Appl. No. 09/722,077.
Hayashi, S. et al., “Low Bit-Rate CELP Speech Coder with Low Delay,”Signal Processing,Elsevier Science B.V., vol. 72, 1999, pp. 97-105.
Tokuda, K. et al., “Speech Coding Based on Adaptive Mel-Cepstral Analysis,” IEEE, 1994, pp. I-197-I-200.
Copy of International Search Report issued Sep. 11, 2002 for Appln. No. PCT/US01/42787, 6 pages.
Marcellin, M.W. and Fischer, T.R., “A Trellis-Searched 16 KBIT/SEC Speech Coder with Low-Delay,”Proceedings of the Workshop on Speech Coding for Telecommunications,Kluwer Publishers, 1989, pp. 47-56.
Watts, L. and Cuperman, V., “A Vector ADPCM Analysis-By-Synthesis Configuration for 16 kbit/s Speech Coding,”Proceedings of the Global Telecommunications Conference and Exhibiton(Globecom), IEEE, 1988, pp. 275-279.
Copy of International Search Report issued May 3, 2002 for Appln. No. PCT/US01/42786, 6 pages.
E.G. Kimme and F.F. Kuo, “Synthesis of Optimal Filters for a Feedback Quantization System*,” IEEE Transactions on Circuit Theory, The Institute of Electrical and Electronics Engineers, Inc., vol. CT-10, No. 3, Sep. 1963, pp. 405-413.
John Makhoul and Michael Berouti, “Adaptive Noise Spectral Shaping and Entropy Coding in Predictive Coding of Speech,” IEEE Transactions on Acoustics, Speech, and Signal Processing, IEEE, vol. ASSP-27, No. 1, Feb. 1979, pp. 63-73.
Bishnu S. Atal and Manfred R.Schroeder, “Predictive Coding of Speech Signals and Subjective Error Criteria,” IEEE Transactions on Acoustics, Speech, and Signal Processing, IEEE, vol. ASSP-27, No. 3, Jun. 1979, pp. 247-254.
Ira A. Gerson and Mark A. Jasiuk, “Techniques for Improving the Performance of CELP-Type Speech Coders,” IEEE Journal on Selected Areas in Communications, IEEE, vol. 10, No. 5, Jun. 1992, pp. 858-865.
Cheng-Chieh Lee, “An Enhanced ADPCM Coder for Voice Over Packet Networks,” International Journal of Speech Technology, Kluwer Academic Publishers, 1999, pp. 343-357.

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