Data processing: speech signal processing – linguistics – language – Audio signal bandwidth compression or expansion
Reexamination Certificate
2003-12-16
2011-10-25
Dorvil, Richemond (Department: 2626)
Data processing: speech signal processing, linguistics, language
Audio signal bandwidth compression or expansion
C704S200000, C704S200100, C704S201000, C704S501000
Reexamination Certificate
active
08046234
ABSTRACT:
Method and apparatus for encoding/decoding audio data with scalability are provided. The method includes slicing audio data so that sliced audio data corresponds to a plurality of layers, obtaining scale band information and coding band information corresponding to each of the plurality of layers, coding additional information containing scale factor information and coding model information based on scale band information and coding band information corresponding to a first layer, obtaining quantized samples by quantizing audio data corresponding to the first layer with reference to the scale factor information, coding the obtained plurality of quantized samples in units of symbols in order from a symbol formed with most significant bits (MSB) down to a symbol formed with least significant bits (LSB) by referring to the coding model information, and repeatedly performing the steps with increasing the ordinal number of the layer one by one every time, until coding for the plurality of layers is finished. According to the method, fine grain scalability (FGS) can be provided with a lower complexity and a better audio quality can be provided even in a lower layer.
REFERENCES:
patent: 6094636 (2000-07-01), Kim
patent: 6438525 (2002-08-01), Park
patent: 6502069 (2002-12-01), Grill et al.
patent: 6529604 (2003-03-01), Park et al.
patent: 2002/0131084 (2002-09-01), Andrew et al.
patent: 1218334 (1999-06-01), None
patent: 0 918 407 (1999-05-01), None
patent: 10-285042 (1998-10-01), None
patent: 11-317672 (1999-11-01), None
patent: 1999-317672 (1999-11-01), None
patent: 2001-134294 (2001-05-01), None
patent: 2001-318684 (2001-11-01), None
patent: 2001-522156 (2001-11-01), None
patent: 2002-156998 (2002-05-01), None
patent: 2002-156998 (2002-05-01), None
patent: P1998-079475 (1997-11-01), None
Sung-Hee Park et al., “Multi-Layer Bit-Sliced Bit-Rate Scalable Audio Coding”, preprints of papers presented at the AES Convention, vol. 103, 16 pages, Dec. 12, 1997.
Sang-Wook Kim et al., “ISO/IEC 14496-3 (MPEG-4 Audio) Amd. 1 FPDAM Annex A (informative)”, ISO/IEC JTC1/SC29/WG11 N2803, Jul. 1999, Vancouver, Canada, pp. 1-53, XP002273900, Retrieved from the Internet:URL:ftp://ftp.tnt.uni-hannover.de/pub/MPEG/audio/mpeg4/documents/w2803/w2803—i.pdf retrieved on Mar. 12, 2004, p. 12, paragraph A.2.2—p. 13, paragraph A.2.3.
W. Kurt Dobson et al., “High Quality Low Complexity Scalable Wavelet Audio Coding” Acoustics, Speech, and Signal Processing, 1997 IEEE International Conference in Munich, Germany, Apr. 21-24, 1997, Los Alamitos, CA, USA, IEEE Comput. Soc, US, Apr. 21, 1997, pp. 327-330.
Korean Office Action issued Jan. 23, 2009, for corresponding KR Application No. 10-2002-0080320.
Japanese Office Action issued Jan. 4, 2006.
Office Action dated Nov. 28, 2008 issued in Chinese Patent Application No. 03165035X.
English Translation of Office Action dated Nov. 28, 2008 issued in Chinese Patent Application No. 03165035X.
Kim Jung-hoe
Kim Sang-wook
Oh Eun-mi
Dorvil Richemond
Godbold Douglas
Samsung Electronics Co,. Ltd.
Staas & Halsey , LLP
LandOfFree
Method and apparatus for encoding/decoding audio data with... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for encoding/decoding audio data with..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for encoding/decoding audio data with... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4302958