Receiver for encoding speech signal using a weighted...

Details Receiver for encoding speech signal using a weighted... Receiver for encoding speech signal using a weighted...

2006-08-01

2006-08-01

McFadden, Susan (Department: 2654)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S220000, C704S222000, C704S223000

Reexamination Certificate

active

07085714

ABSTRACT:
A method for processing speech in a spread spectrum communication system uses CELP speech encoded signals. A speech input receives samples of a speech signal and a codebook analysis block for selects an index of a code from each of a plurality of codebooks. A weighted synthesis filter is used in the generation of a prediction error between a predicted current sample and a current sample of the speech samples. The index is transmitted to the receiver to enable reconstruction of the speech signal at the receiver.

REFERENCES:
patent: 4220819 (1980-09-01), Atal
patent: 4797925 (1989-01-01), Lin
patent: 4817157 (1989-03-01), Gerson
patent: 5271089 (1993-12-01), Ozawa
patent: 5274741 (1993-12-01), Taniguchi et al.
patent: 5353373 (1994-10-01), Drogo de Iacouo et al.
patent: 5371853 (1994-12-01), Kao et al.
patent: 5444816 (1995-08-01), Adoul et al.
patent: 5451951 (1995-09-01), Elliott et al.
patent: 5621852 (1997-04-01), Lin
patent: 5657418 (1997-08-01), Gerson et al.
patent: 5699482 (1997-12-01), Adoul et al.
patent: 5787390 (1998-07-01), Quinquis et al.
patent: 5845244 (1998-12-01), Proust
patent: 5924062 (1999-07-01), Maung
patent: 6148282 (2000-11-01), Paksoy et al.
patent: 6161086 (2000-12-01), Mukherjee et al.
patent: 6240382 (2001-05-01), Lin
patent: 6389388 (2002-05-01), Lin
patent: 6763330 (2004-07-01), Lin
Moncet and Rabal, “Codeword Selection for CELP Coders”, INRS-Telecommunications Technical Report, No. 87-35 (Jul. 1987), pp. 1-22.
Davidson and Gersho, “Complexity Reduction Methods for Vector Excitation Coding”, IEEE-IECEI-ASJ International Conference on Acoustics, Speech and Signal Processing, vol. 4, Apr. 7, 1986, p. 3055.
Atal, “Predictive Coding at Low Bit Rates”, IEEE Transactions on Communications, vol. COM-30, No. 4 (Apr. 1982), p. 600.
Trancoso and Atat, “Efficient Procedures for Finding the Optimum Innovation Sequence in Stochastic Coders”, IEEE International Conference on Acoustics, Speech and Signal Processing, vol. 4, Apr. 7, 1986, p. 2375.
Schroder et al., “Stochastic Coding at Very Low Bit Rates, The Importance of Speech Perception”, Speech Communication 4 (1985), North Holland, p. 155.
Schroder et al., “Code Excited Linear Prediction (CELP) High Quality Speech at Very Low Bit Rates”, IEEE 1985, p. 937.
Schroder, “Linear Predictive Coding of Speech: Review and Current Directions”, IEEE Communications Magazine, vol. 23, No. 8, Aug. 1985, p. 54.
Miyano et al., “Improved 4.87 Kbls CELP Coding Using Two-Stage Vector Quantization with Multiple Candidates (LCELP)”, ICASSP 1992: Acoustics Speech and Signal Processing Cone, Sep. 1992, pp. 321-324.
Casaju's Quir'os et al., “Analysis and Quantization Procedures for a Real-Time Implementation of a 4.8 kbls CELP Coder”, ICASSP 1990: Acoustics, Speech and Signal Processing Cone, Feb. 1990, pp. 609-612.

Affiliated with

Also associated with

Rating

Receiver for encoding speech signal using a weighted... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Receiver for encoding speech signal using a weighted..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Receiver for encoding speech signal using a weighted... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3661767