Coding device, decoding device, and methods thereof

Details Coding device, decoding device, and methods thereof Coding device, decoding device, and methods thereof

2008-04-22

2008-04-22

Hudspeth, David (Department: 2626)

Data processing: speech signal processing, linguistics, language

Audio signal bandwidth compression or expansion

With content reduction encoding

C704S229000

Reexamination Certificate

active

07363231

ABSTRACT:
A coding device capable of improving the coding efficiency and a decoding device for decoding a code sequence generated by the coding device are provided. In the coding device, for each of the possible block combinations obtained when dividing a frame, a coding unit encodes each block in the frame block by block at different bit rates, and at the same time, the coding unit decodes the resultant code sequences related to the frame. A calculation unit calculates the error powers of the decoded signals and the input signal. A determination unit selects a code sequence that makes the average bit rate in coding the frame not higher than a specified value and the corresponding error power a minimum. This selected code sequence is output.

REFERENCES:
patent: 5166686 (1992-11-01), Sugiyama
patent: 5224167 (1993-06-01), Taniguchi et al.
patent: 6233550 (2001-05-01), Gersho et al.
patent: 6263312 (2001-07-01), Kolesnik et al.
patent: 6496794 (2002-12-01), Kleider et al.
patent: 9-70041 (1997-03-01), None
Noboru Harada, et al., “5-KHZ-Bandwidth Speech Coder at 4-8Kbit/S”, Speech Coding Proceedings, XP-010345531, Jun. 20, 1999, pp. 13-15.
Edward Glazebrook, et al., “Low Data Rate Adaptive Transform Coding For Parametric Representation of Speech Signals”, International Symposium on Signal Processing and its Applications, vol. 2, XP-010241107, Aug. 25, 1996, pp. 768-771.
W. Bastiaan Kleijn, et al., “A 5.85 kb/s CELP Algorithm for Cellular Applications”, Statistical Signal and Array Processing, vol. 4, XP-010110525, Apr. 27, 1993, pp. 596-599.
Kei Kikuiri, et al., “Super-Frame Based Source Controlled Variable Rate Coding Using Approximated Trellis Diagram”, IEEE International Conference on Acoustics, Speech and Signal Processing, vol. 1 of 6, XP-010640912, Apr. 6, 2003, pp. 185-188.

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