Electrical audio signal processing systems and devices – Binaural and stereophonic – Quadrasonic
Reexamination Certificate
2006-04-19
2011-11-08
Mei, Xu (Department: 2614)
Electrical audio signal processing systems and devices
Binaural and stereophonic
Quadrasonic
C381S022000
Reexamination Certificate
active
08054981
ABSTRACT:
Parameters being a measure for a characteristic of a channel or of a pair of channels, wherein the parameter is a measure for a characteristic of the channel or of the pair of channels with respect to another channel of a multi-channel signal can be quantized more efficiently using a quantization rule that is generated based on a relation of an energy measure of the channel or the pair of channels and an energy measure of the multi-channel signal. With generation of the quantization rule taking into account a psycho acoustic approach, the size of an encoded representation of the multi-channel signal can be decreased by coarser quantization without significantly disturbing the perceptual quality of the multi-channel signal when reconstructed from the encoded representation.
REFERENCES:
patent: 6134200 (2000-10-01), Timmermans
patent: 7382886 (2008-06-01), Henn et al.
patent: 7447629 (2008-11-01), Breebaart
patent: 7613609 (2009-11-01), Makino
patent: 7627482 (2009-12-01), Tsuji et al.
patent: 2003337598 (2003-11-01), None
patent: 2004309921 (2004-11-01), None
patent: 2004535145 (2004-11-01), None
patent: 2005533426 (2005-11-01), None
patent: 2006528482 (2006-12-01), None
patent: 2 073 913 (1997-02-01), None
patent: 2004/072956 (2004-08-01), None
“Parametric Coding of Stereo Audio” (Breebaart, et al.), EURASIP Journal on Applied Signal Processing 2005:9, pp. 1305-1322.
“Binaural Cue Coding: A Novel and Efficient Representation of Spatial Audio” (Faller, et al.), dated May 2002, pp. 1841-1844.
“Binaural Cue Coding Applied to Stereo and Multi-Channel Audio Compression” (Faller, et al.), AES Convention Paper 5574, dated May 2002, pp. 1-9.
“Estimation of Auditory Spatial Cues for Binaural Cue Coding” (Baumgarte, et al.), dated May 2002.
“High-quality Parametric Spatial Audio Coding at Low Bit Rates” (Breebaart, et al.), AES Convention Paper, dated May 2004, pp. 1-13.
“Low Complexity Parametric Stereo Coding” (Schuijers, et al.), AES Convention Paper 6073, dated May 2004, pp. 1-11.
Heiko Purnhagen: “Low Complexity Parametric Stereo Coding in MPEG-4”; Coding Technologies; Proc. of the 7thInt. Conference on Digital Audio Effects (DaFx'04). Naples, Italy, Oct. 5-8, 2004.
Japanese Office Action dated Feb. 9, 2010.
Breebaart Jeroen
Engdegard Jonas
Herre Jürgen
Hilpert Johannes
Purnhagen Heiko
Coding Technologies AB
Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forshung
Greenberg Laurence A.
Koninklijke Philips Electronics , N.V.
Locher Ralph E.
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