Hierarchy encoding apparatus and hierarchy encoding method

Details Hierarchy encoding apparatus and hierarchy encoding method Hierarchy encoding apparatus and hierarchy encoding method

2011-05-24

2011-05-24

Yen, Eric (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

C704S208000, C704S211000

Reexamination Certificate

active

07949518

ABSTRACT:
A hierarchy encoding apparatus capable of calculating appropriate delay amounts and also capable of suppressing increase in the bit rate. In this apparatus, a first layer encoding part (101) encodes the input signal of the n-th frame to produce a first layer encoded code. A first layer decoding part (102) generates a first layer decoded signal from the first layer encoded code and applies it to a delay amount calculating part (103) and a second layer encoding part (105). The delay amount calculating part (103) uses the first layer decoded signal and input signal to calculate the delay amount to be added to the input signal, and applies the calculated delay amount to a delay part (104). The delay part (104) delays the input signal by the delay amount applied from the delay amount calculating part (103) and then applied it to a second layer encoding part (105). The second layer encoding part (105) uses the first layer decoded signal and the input signal from the delay part (104) for encoding.

REFERENCES:
patent: 4757517 (1988-07-01), Yatsuzuka
patent: 5054075 (1991-10-01), Hong et al.
patent: 5388209 (1995-02-01), Akagiri
patent: 5479517 (1995-12-01), Linhard
patent: 5933803 (1999-08-01), Ojala
patent: 6757648 (2004-06-01), Chen et al.
patent: 6868377 (2005-03-01), Laroche
patent: 7130797 (2006-10-01), Beaucoup et al.
patent: 7356748 (2008-04-01), Taleb
patent: 2004/0161043 (2004-08-01), Nomura et al.
patent: 2005/0163323 (2005-07-01), Oshikiri
patent: 2005/0252361 (2005-11-01), Oshikiri
patent: 1489399 (2004-12-01), None
patent: 1533789 (2005-05-01), None
patent: 08046517 (1996-02-01), None
patent: 08263096 (1996-10-01), None
patent: 2001142496 (2001-05-01), None
patent: 2001142497 (2001-05-01), None
patent: 2003280694 (2003-10-01), None
patent: 2003323199 (2003-11-01), None
patent: 2004102186 (2004-04-01), None
patent: 03081196 (2003-10-01), None
patent: 2004023457 (2004-03-01), None
PCT International Search Report dated Aug. 9, 2005.
T. Nomura, et al.; “MPEG-2 AAC o Mochiita Kaiso Lossless Asshuku Hoshiki,” The Institute of Electronics, Information and Communication Engineers 2002 Nen Sogo Taikai Koen Ronbunshu, Joho, System 1, Mar. 7, 2002, p. 179.
Supplementary European Search Report dated Jun. 1, 2007.
Ramprashad, S. A., “High Quality Embedded Wideband Speech Coding Using an Inherently Layered Coding Paradigm” Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on Jun. 5-9, 2000, Piscataway, NJ, USA, IEEE, vol. 2, Jun. 5, 2000. pp. 1145-1148.

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