Multistage inverse quantization having the plurality of...

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

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

06904404

ABSTRACT:
With respect to audio signal coding and decoding apparatuses, there is provided a coding apparatus that enables a decoding apparatus to reproduce an audio signal even through it does not use all of data from the coding apparatus, and a decoding apparatus corresponding to the coding apparatus. A quantization unit constituting a coding apparatus includes a first sub-quantization unit comprising sub-quantization units for low-band, intermediate-band, and high-band; a second sub-quantization unit for quantizing quantization errors from the first sub-quantization unit; and a third sub-quantization unit for quantizing quantization errors which have been processed by the first sub-quantization unit and the second sub-quantization unit.

REFERENCES:
patent: 5398069 (1995-03-01), Huang et al.
patent: 5666465 (1997-09-01), Ozawa
patent: 5717821 (1998-02-01), Tsutsui et al.
patent: 5778335 (1998-07-01), Ubale et al.
patent: 5809459 (1998-09-01), Bergstrom et al.
patent: 5819212 (1998-10-01), Matsumoto et al.
patent: 5822722 (1998-10-01), Ozawa
patent: 5864794 (1999-01-01), Tasaki
patent: 5966688 (1999-10-01), Nandkumar et al.
patent: 6122338 (2000-09-01), Yamauchi
patent: 0673014 (1995-09-01), None
patent: 0709827 (1996-05-01), None
patent: 5-257498 (1983-10-01), None
patent: 03228433 (1991-10-01), None
patent: 03-228433 (1991-10-01), None
patent: 04171500 (1992-06-01), None
patent: 04-171500 (1992-06-01), None
patent: 05-165499 (1993-07-01), None
patent: 05165499 (1993-07-01), None
patent: 5-257498 (1993-10-01), None
patent: 06077840 (1994-03-01), None
patent: 06-077840 (1994-03-01), None
patent: 6-118998 (1994-04-01), None
patent: 06169449 (1994-06-01), None
patent: 06-169449 (1994-06-01), None
patent: 6-291674 (1994-10-01), None
patent: 7-64599 (1995-03-01), None
patent: 8-137498 (1996-05-01), None
patent: 8-194497 (1996-07-01), None
patent: 9-194497 (1996-07-01), None
patent: 09-034499 (1997-02-01), None
patent: 09034499 (1997-02-01), None
patent: 09127987 (1997-05-01), None
patent: 09-127987 (1997-05-01), None
patent: 09-130260 (1997-05-01), None
patent: 09130260 (1997-05-01), None
patent: 09-281995 (1997-10-01), None
patent: 09281995 (1997-10-01), None
patent: 10-020898 (1998-01-01), None
patent: 10020898 (1998-01-01), None
Allen Gersho and Robert M. Gray, “Vector Quantization and Signal Compression”, pp. 427-459.
A. Moreno et al., “Envelope and Instantaneous Phase in Residual Representation”, Proceedings of the European Signal Processing Conference (EUSIPCO), NL, Amsterdam, North Holland, vol. CONF. 4, 1988, pp. 167-170.
O. Gautherot et al., “LPC Residual Phase Investigation”, Proceedings of the European Conference on Speech Communication and Technology (EUROSPEECH), GB, Edinburgh, CEP Consultants, vol. CONF. 1, 1989, pp. 35-38.
G. Davidson et al., “Multiple-Stage Vector Excitation Coding of Speech Waveforms”, International Conference on Acoustics, Speech & Signal Processing, ICASSP, US, New York, IEEE, vol. Conf. 13, 1988, pp. 163-166.
M. Iwadare et al., “A 128 kb/s Hi-Fi Audio CODEC Based on Adaptive Transform Coding with Adaptive Block Size MDCT”, IEEE Journal on Selected Areas in Communications, US, IEEE Inc., New York, vol. 10, No. 1, Jan. 1, 1992, pp. 138-144.
D.H. Lee et al., “Cell-Conditioned Multistage Vector Quantization”, International Conference on Acoustics, Speech & Signal Processing, ICASSP, US, New York, IEEE, vol. CONF. 16, 1991, pp. 653-656.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Multistage inverse quantization having the plurality of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multistage inverse quantization having the plurality of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multistage inverse quantization having the plurality of... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3460858

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.