Speech coder and speech decoder

Details Speech coder and speech decoder Speech coder and speech decoder

2006-04-04

2006-04-04

Armstrong, Angela (Department: 2654)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S222000, C704S219000

Reexamination Certificate

active

07024356

ABSTRACT:
A dispersed vector generator used in an excitation vector generator for a speech coder/decoder is provided. The dispersed vector generator includes a pulse vector generating section that generates a pulse vector having a signed unit pulse on one element of a vector axis. The dispersed vector generator also includes a dispersion pattern storing section that stores a plurality of dispersion patterns, a switch that selects a dispersion pattern out of the plurality of dispersion patterns stored in the dispersion pattern storing section and a pulse vector dispersion section that generates a dispersed vector by convoluting the selected dispersion pattern and the pulse vector.

REFERENCES:
patent: 4868867 (1989-09-01), Davidson et al.
patent: 5195137 (1993-03-01), Swaminathan
patent: 5307441 (1994-04-01), Tzeng
patent: 5699477 (1997-12-01), McCree
patent: 5734790 (1998-03-01), Taguchi
patent: 5826226 (1998-10-01), Ozawa
patent: 5963896 (1999-10-01), Ozawa
patent: 6122608 (2000-09-01), McCree
patent: 6266632 (2001-07-01), Kato et al.
patent: 6415254 (2002-07-01), Yasunaga et al.
patent: 0684702 (1995-11-01), None
patent: 0778561 (1997-06-01), None
patent: 2280200 (1990-11-01), None
patent: 2282800 (1990-11-01), None
patent: 5108098 (1993-04-01), None
patent: 6202699 (1994-07-01), None
patent: 7-28497 (1995-01-01), None
patent: 8-8753 (1996-01-01), None
patent: 9-34498 (1997-02-01), None
patent: 9160596 (1997-06-01), None
patent: 10-63300 (1998-03-01), None
Schroeder, M.R., et al., “Code Excited Linear Prediction (CELP): High Quality Speech At Very Low Bit Rates”, Proc. ICASSP 1985, pp. 937-940.
Salami, R., et al., “8 K Bit/s ACELP Coding Of Speech With 10 MS Speech Frame: A Candidate For CCITT Standardization”, ICASSP 1994, pp. 11-97˜II100, 1994.
Linde, Y., et al., “An Algorithm For Vector Quantizer Design”, IEEE Transactions On Communications, vol. Com-28, No. 1, pp. 84-95, Jan. 1980.
Gerso, I., et al., “Vector Sum Excited Linear Prediction (VSELP) Speech Coding At 8 KBPS”, pp. 461-464, IEEE 1990.
Ikedo, J., et al., “Low Complexity CELP Speech Coder Using Orthogonalized Search Of Algebraic Code”, p. 255 together with a partial English translation thereof.
An English language abstract of JP 2-280200.
An English language abstract of JP 2-280800.
An English language abstract of JP 9-160596.
An English language abstract of JP 8-008753.
An English language abstract of JP 10-063300.
An English language abstract of JP 7-028497.
An English language abstract of JP 5-108098.
An English language abstract of JP 6-202699.
An English language abstract of JP 9-034498.
“A Complexity Reduction Method for VSELP Coding Using Overlapped Sparse Basis Vectors”, by Sung Joo Kim et al., Proceedings of the International Conference on Signal Processing Applications and Technology, XX, XX, vol. 2, pp. 1578-1582, published Oct. 18, 1994.
“On Reducing Computational Complexity of Codebook Search in CELP Coder Through the Use of Algebraic Codes”, by LaFlamme et al., IEEE 1990.
“State of the Art and Trends in Speech Coding” by R.J. Sluijter et al., Philips Journal of Research, vol. 49, No. 4, pp. 455-488, Elsevier, Amsterdam NL, 1995.
Schroeder, M.R., et al., “Code Excited Linear Prediction (CELP): High Quality Speech At Very Low Bit Rates”, Proc. ICASSP 1985, pp. 937-940.
Salami, R., et al., “8 K Bit/s ACELP Coding Of Speech With 10 MS Speech Frame: A Candidate For CCITT Standardization”, ICASSP 1994, pp. 11-97˜II100, 1994.
Linde, Y., et al., “An Algorithm For Vector Quantizer Design”, IEEE Transactions On Communications, vol. Com-28, No. 1, pp. 84-95, Jan. 1980.
Gerso, I., et al., “Vector Sum Excited Linear Prediction (VSELP) Speech Coding At 8 KBPS”, pp. 461-464, IEEE 1990.
Ikedo, J., et al., “Low Complexity CELP Speech Coder Using Orthogonalized Search Of Algebraic Code”, p. 255 together with a partial English translation thereof.
An English language abstract of JP 2-280200.
An English language abstract of JP 2-280800.

Affiliated with

Also associated with

Rating

Speech coder and speech decoder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Speech coder and speech decoder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speech coder and speech decoder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3597545