Method for searching an excitation codebook in a code excited li

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395228, 395 238, 395 277, G10L 302, G10L 502

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057519013

ABSTRACT:
A method for selecting a code vector in an algebraic codebook wherein the analysis window for the coder is extended beyond the length of the target speech frame. By extending the analysis window, the two dimensional impulse response matrix can be stored as a one dimensional autocorrelation matrix greatly saving on the computational complexity and memory required for the search.

REFERENCES:
patent: Re32580 (1988-01-01), Atal et al.
patent: 3633107 (1972-01-01), Brady
patent: 4012595 (1977-03-01), Ota
patent: 4076958 (1978-02-01), Fulghum
patent: 4214125 (1980-07-01), Mozer et al.
patent: 4360708 (1982-11-01), Taguchi et al.
patent: 4379949 (1983-04-01), Chen et al.
patent: 4535472 (1985-08-01), Tomcik
patent: 4610022 (1986-09-01), Kitayama et al.
patent: 4617676 (1986-10-01), Jayant et al.
patent: 4627407 (1986-12-01), Schindler et al.
patent: 4667340 (1987-05-01), Arjmand et al.
patent: 4672669 (1987-06-01), DesBlache et al.
patent: 4672670 (1987-06-01), Wang et al.
patent: 4677671 (1987-06-01), Galand et al.
patent: 4696192 (1987-09-01), Chen et al.
patent: 4697261 (1987-09-01), Wang et al.
patent: 4726037 (1988-02-01), Jayant
patent: 4771465 (1988-09-01), Bronson et al.
patent: 4787925 (1988-11-01), Lin
patent: 4797929 (1989-01-01), Gerson et al.
patent: 4817157 (1989-03-01), Gerson
patent: 4827517 (1989-05-01), Atal et al.
patent: 4831636 (1989-05-01), Taniguchi et al.
patent: 4843612 (1989-06-01), Brusch et al.
patent: 4850022 (1989-07-01), Honda et al.
patent: 4852179 (1989-07-01), Fette
patent: 4856068 (1989-08-01), Quatieri, Jr. et al.
patent: 4864561 (1989-09-01), Ashenfelter et al.
patent: 4864620 (1989-09-01), Bialick
patent: 4868867 (1989-09-01), Davidson et al.
patent: 4885790 (1989-12-01), Mcaulay et al.
patent: 4890327 (1989-12-01), Bertland et al.
patent: 4896361 (1990-01-01), Gerson
patent: 4899384 (1990-02-01), Crouse et al.
patent: 4899385 (1990-02-01), Ketchum et al.
patent: 4903301 (1990-02-01), Kondo et al.
patent: 4905288 (1990-02-01), Gerson et al.
patent: 4918734 (1990-04-01), Muramatsu et al.
patent: 4933957 (1990-06-01), Bottau et al.
patent: 4937873 (1990-06-01), McAulay et al.
patent: 4965789 (1990-10-01), Bottau et al.
patent: 4991214 (1991-02-01), Freeman et al.
patent: 5007092 (1991-04-01), Galand et al.
patent: 5023910 (1991-06-01), Thomson
patent: 5054072 (1991-10-01), McAulay et al.
patent: 5060269 (1991-10-01), Zinser
patent: 5077798 (1991-12-01), Ichikawa et al.
patent: 5091945 (1992-02-01), Kleijn
patent: 5093863 (1992-03-01), Galand
patent: 5103459 (1992-04-01), Gilhousen et al.
patent: 5113448 (1992-05-01), Nomura et al.
patent: 5140638 (1992-08-01), Moulsley et al.
patent: 5159611 (1992-10-01), Tomita et al.
patent: 5161210 (1992-11-01), Druyvesteyn et al.
patent: 5175769 (1992-12-01), Hejna, Jr. et al.
patent: 5187745 (1993-02-01), Yip et al.
patent: 5202953 (1993-04-01), Taguchi
patent: 5214741 (1993-05-01), Akamine et al.
patent: 5222189 (1993-06-01), Fielder
patent: 5235671 (1993-08-01), Mazor
patent: 5327498 (1994-07-01), Hamon
patent: 5357594 (1994-10-01), Fielder
patent: 5361278 (1994-11-01), Vaupel et al.
patent: 5384811 (1995-01-01), Dickopp et al.
patent: 5444816 (1995-08-01), Adoul
patent: 5524172 (1996-06-01), Hamon
patent: 5596675 (1997-01-01), Ishii et al.
patent: 5596676 (1997-01-01), Swaminathan et al.
patent: 5630013 (1997-05-01), Suzuki et al.
patent: 5651092 (1997-07-01), Ishii et al.
Atal et al. "Adaptive Predictive Coding of Speech Signals", The Bell System Technical Journal, Oct. 1970, pp. 229-238.
Schroeder et al. Stochastic Coding of Speech Signals at Very Low Bit Rates: The Importance of Speech Perception, "Speech Communication 4" (1985) pp. 155-162.
Schroeder et al. "Code-excited Linear Prediction (CELP): High-quality Speech at Very Low Bit Rates," 1985 IEEE Communications, pp. 9370940(25.1.1-25.1.4).
Bishnu S. Atal. "Predictive Coding of Speech at Low Bit Rates", IEEE Transactions on Communications, vol. Com-30, No. 4, Apr. 1982, pp. 600-614.
Shinghai et al. "Improving Performance of Multi-Pulse LPC Coders at Low Bit Rates", IEEE Transactions on Communications, 1984, pp. 1.3.1-1.3.4.
Atal et al. "Stochastic Coding of Speech Signals at Very Low Bit Rates," 1984 IEEE, on a new stochastic model for generating speech signals suiteable for coding speech at a low bit rates.
Wang et al. "Phonetically--Based Vector Excitation Coding of Speech at 3.6 kbps," 1989 IEEE, pp. 49-52.
Taniguchi et al, "Combined source coding based on multimode coding"; ICASSP 90: 1990 Inter. Conf. on Acoustics, Speech and Signal Processing; 3-6 Apr. 1990, pp. 447-480 vol. 1.
Swaminathan et al., "Half Rate CELP codec candidate for north American digital cellular systems"; 1992 IEEE Inter conf. on Selected Topics Wireless communications; p. 192-194.
Taniguchi et al., "ADPCM with a multiquantizer for speech coding"; IEEE Journal on Selected Areas in Communications; Feb. 1988, p. 410-424, vol. 6 issue 2.
"DSP Chips can produce random numbers using proven algorithm"; By Paul Menner, EDN, pp. 141-145.
"Variable Rate Speech Coding: A Review" by N.S. Jayans, 1984 IEEE.
"Varible Rate Speech Coding with onlinme segmentation and fast algebraic codes" By R. Di Francesco et al. 1990 IEEE, pp. 233-236.
"Finite State CELP for Variable Rate Speech Coding" By Saeed V. Vaseghi, 1990 IEEE, pp. 37-40.
"Variable Rate Speech Coding for Asynchronous Transfer Mode" by Hiroshi Nakada et al.. 1990 IEEE Transactions on Communications, vol. 38, No. 3. Mar. 1990, pp. 277-284.
"A 4.8 KBPS code Excited Linear Predictive Coder" Bu Thomas E. Tremain et al. Proceedings of the Mobile Satellite Conference, 1988.
"Design and Performance of an Analysis-by-Synthesis class of Predictive Speech Coders" by Ricahrd C. Rose et al., Member IEEE; 1990 IEEE; pp. 1489-1503.
"Digital Coding of Speech Waveforms: PCM, DPCM, and DM Quantizers" by Nuggehally S. Jayant, 1974 IEEE, vol. 62 May 1974; pp. 611-632.
"Improvements of Background Sound Coding in Linear Predictive Speech Coders" By Torbjorn Wigren et al. 1995 IEEE, pp. 25-28.
"Fast Methods for the CELP Speech Coding Algorithm" IEEE Transaction on Signal Processing vol. 38 No. 8, Aug. 1990.
"The QCELP Variable Rate Vocoder" By William Gardner et al. Late 1991.
"Multiple Excitation Code Book Design and Fast Search Methods for CELP Speech Coding" by Forrest F. Tzeng, 1988 IEEE, pp. 590-594.
"Variable Rate Adaptive predictive Filter" By Ioannis S. Dedes et al. 1992 IEEE Transactions of Signal Processing, vol. 40 No. 3, pp. 511-517.
S. Vaseghi, PhD. "Speech Synthesis, Codina, Predictive Techniques".
"Multiple Exictation CodeBook Design and Fast Search Methods For CELP Speech Coding" by Forrest F. Tzeng, 1988 IEEE, pp. 590-594.

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