Unified lossy and lossless audio compression

Details Unified lossy and lossless audio compression Unified lossy and lossless audio compression

2003-07-14

2008-09-09

Lerner, Martin (Department: 2626)

Data processing: speech signal processing, linguistics, language

Audio signal bandwidth compression or expansion

C704S219000, C704S501000, C370S465000

Reexamination Certificate

active

07424434

ABSTRACT:
A unified lossy and lossless audio compression scheme combines lossy and lossless audio compression within a same audio signal. This approach employs mixed lossless coding of a transition frame between lossy and lossless coding frames to produce seamless transitions. The mixed lossless coding performs a lapped transform and inverse lapped transform to produce an appropriately windowed and folded pseudo-time domain frame, which can then be losslessly coded. The mixed lossless coding also can be applied for frames that exhibit poor lossy compression performance.

REFERENCES:
patent: 5063574 (1991-11-01), Moose
patent: 5361278 (1994-11-01), Vaupel et al.
patent: 5557298 (1996-09-01), Yang et al.
patent: 5839100 (1998-11-01), Wegener
patent: 5857000 (1999-01-01), Jar-Ferr et al.
patent: 5884269 (1999-03-01), Cellier et al.
patent: 5914987 (1999-06-01), Fogel
patent: 5926611 (1999-07-01), Yang et al.
patent: 6029126 (2000-02-01), Malvar
patent: 6121904 (2000-09-01), Levine
patent: 6141446 (2000-10-01), Boliek et al.
patent: 6141645 (2000-10-01), Chi-Min et al.
patent: 6219458 (2001-04-01), Zandi et al.
patent: 6493338 (2002-12-01), Preston et al.
patent: 6664913 (2003-12-01), Craven et al.
patent: 6675148 (2004-01-01), Hardwick
patent: 6757437 (2004-06-01), Keith et al.
patent: 6934677 (2005-08-01), Chen et al.
patent: 7027982 (2006-04-01), Chen et al.
patent: 7076104 (2006-07-01), Keith et al.
patent: 7146313 (2006-12-01), Chen et al.
patent: 7240001 (2007-07-01), Chen et al.
patent: 2002/0035470 (2002-03-01), Gao
patent: 2003/0012431 (2003-01-01), Irvine et al.
patent: 2003/0142874 (2003-07-01), Schwartz
patent: 2005/0159940 (2005-07-01), Wu et al.
Moriya et al., “A design of lossy and lossless scalable audio coding,” IEEE International Conference on Acoustics, Speech, and Signal Processing, 2000. ICASSP '00, Jun. 5-9, 2000, vol. 2, pp. 889 to 892.
Moriya et al., “Sampling rate scalable lossless audio coding,” IEEE Workshop Proceedings, Oct. 6-9, 2002, pp. 123 to 125.
Hans et al., “Lossless Compression of Digital Audio”,IEEE Signal Processing Magazine, vol. 18, No. 4, pp. 21-32 (Jul. 2001).
Kofidis et al., “Wavelet-based medical image compression”,Future Generations Computer Systems, Elsevier Science Publishers, vol. 15, No. 2, pp. 223-243 (Mar. 1999).
Bosi et al., “ISO/IEC MPEG-2 Advanced Audio Coding”,Journal of the Audio Engineering Society, Audio Engineering Society, New York, pp. 789-812 (Oct. 1997).
Golomb, “Run Length Encodings”,IEEE Transactions on Information Theory, IEEE, Inc., New York, pp. 399-401 (Jul. 1996).
Liebchen et al., “Lossless Transform Coding of Audio Signals”, pp. 1-10,Lossless to Transparent Coding IEEE Signal Processing Workshop, Presented at 102ndAES Convention, 1997, Munich.
Sullivan et al., “The H.264/AVC Advanced Video Coding Standard: Overview and Introduction to the Fidelity Range Extensions,” 21 pp. (Aug. 2004).
Yea and Pearlman, “A wavelett-based two-stage near-lossless coder,” IEEE, 2004 Internatinal Conference on Image Processing (ICIP), pp. 2503-2506, 2004.
Kim and Li, “Lossless and lossy image compression using biorthogonal wavelet transforms with multiplierless operations,” IEEE Transactions on Circuits and Systems—II: Analog and Digital Signal Processing 45(8):1113-1118, Aug. 1998.
Euer, “Coding of Audio Signals with Overlapping Block Transform and Adaptive Window Functions,” FREQUENZ, Schiele und Schon GMBH, Berlin, Germany, pp. 252-256 (Sep. 1989). [also cited as: Edler, “Codierung Von Audiosignalen Mit Uberlappender Transformation Und Adaptiven Fensterfunktionen, . . . ”].
European Patent Office Official Communication dated Apr. 11, 2005, 8 pages.
European Patent Office Official Communication dated Aug. 31, 2006, 6 pages.

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