Data processing: speech signal processing – linguistics – language – Audio signal bandwidth compression or expansion
Reexamination Certificate
2011-05-31
2011-05-31
Dorvil, Richemond (Department: 2626)
Data processing: speech signal processing, linguistics, language
Audio signal bandwidth compression or expansion
C704S200100, C704S222000, C704SE21011
Reexamination Certificate
active
07953604
ABSTRACT:
An audio encoder performs frequency extension coding that comprises determining one or more shape parameters using a displacement vector that corresponds to a displacement of an even number (e.g., an even number of sub-bands between a sub-band in a baseband frequency range and a sub-band in an extended-band frequency range). The shape parameters can be determined on a per-audio-block basis. Restricting a displacement to an even number (in frequency extension coding or in other signal modulation schemes) can improve the quality of reconstructed audio. An audio encoder also can perform frequency extension coding that comprises determining one or more scale parameters at one or more audio blocks, and determining one or more anchor points for interpolating the one or more scale parameters.
REFERENCES:
patent: 4251688 (1981-02-01), Furner
patent: 4907276 (1990-03-01), Aldersberg
patent: 5079547 (1992-01-01), Fuchigama et al.
patent: 5260980 (1993-11-01), Akagiri et al.
patent: 5388181 (1995-02-01), Anderson et al.
patent: 5455888 (1995-10-01), Iyengar et al.
patent: 5473727 (1995-12-01), Nishiguchi et al.
patent: 5487086 (1996-01-01), Bhaskar
patent: 5524054 (1996-06-01), Spille
patent: 5539829 (1996-07-01), Lokhoff et al.
patent: 5581653 (1996-12-01), Todd
patent: 5627938 (1997-05-01), Johnston
patent: 5629780 (1997-05-01), Watson
patent: 5632003 (1997-05-01), Davidson et al.
patent: 5636324 (1997-06-01), Teh et al.
patent: 5661755 (1997-08-01), Van De Kerkhof et al.
patent: 5661823 (1997-08-01), Yamauchi et al.
patent: 5682152 (1997-10-01), Wang et al.
patent: 5686964 (1997-11-01), Tabatabai et al.
patent: 5701346 (1997-12-01), Herre et al.
patent: 5745275 (1998-04-01), Giles et al.
patent: 5812971 (1998-09-01), Herre
patent: 5822370 (1998-10-01), Graupe
patent: 5835030 (1998-11-01), Tsutsui et al.
patent: 5845243 (1998-12-01), Smart
patent: 5956674 (1999-09-01), Smyth et al.
patent: 5960390 (1999-09-01), Ueno et al.
patent: 5974380 (1999-10-01), Smyth et al.
patent: 5995151 (1999-11-01), Naveen et al.
patent: 6029126 (2000-02-01), Malvar
patent: 6041295 (2000-03-01), Hinderks
patent: 6058362 (2000-05-01), Malvar
patent: 6064954 (2000-05-01), Cohen et al.
patent: 6104321 (2000-08-01), Akagiri
patent: 6115688 (2000-09-01), Brandenburg et al.
patent: 6115689 (2000-09-01), Malvar
patent: 6182034 (2001-01-01), Malvar
patent: 6205430 (2001-03-01), Hui
patent: 6226616 (2001-05-01), You et al.
patent: 6240380 (2001-05-01), Malvar
patent: 6249614 (2001-06-01), Kolesnik et al.
patent: 6341165 (2002-01-01), Gbur et al.
patent: 6353807 (2002-03-01), Tsutsui et al.
patent: 6370128 (2002-04-01), Raitola
patent: 6393392 (2002-05-01), Minde
patent: 6418405 (2002-07-01), Satyamurti et al.
patent: 6434190 (2002-08-01), Modlin
patent: 6445739 (2002-09-01), Shen et al.
patent: 6473561 (2002-10-01), Heo
patent: 6496798 (2002-12-01), Huang et al.
patent: 6499010 (2002-12-01), Faller
patent: 6658162 (2003-12-01), Zeng et al.
patent: 6680972 (2004-01-01), Liljeryd et al.
patent: 6697491 (2004-02-01), Griesinger
patent: 6704711 (2004-03-01), Gustafsson et al.
patent: 6738074 (2004-05-01), Rao et al.
patent: 6760698 (2004-07-01), Gao
patent: 6766293 (2004-07-01), Herre et al.
patent: 6771777 (2004-08-01), Gbur et al.
patent: 6774820 (2004-08-01), Craven et al.
patent: 6836761 (2004-12-01), Kawashima et al.
patent: 6934677 (2005-08-01), Chen et al.
patent: 6940840 (2005-09-01), Ozluturk et al.
patent: 7027982 (2006-04-01), Chen et al.
patent: 7050972 (2006-05-01), Henn et al.
patent: 7058571 (2006-06-01), Tsushima et al.
patent: 7062445 (2006-06-01), Kadatch
patent: 7069212 (2006-06-01), Tanaka et al.
patent: 7096240 (2006-08-01), Absar et al.
patent: 7240001 (2007-07-01), Chen et al.
patent: 7283955 (2007-10-01), Liljeryd et al.
patent: 7299190 (2007-11-01), Thumpudi et al.
patent: 7318035 (2008-01-01), Andersen et al.
patent: 7328162 (2008-02-01), Liljeryd et al.
patent: 7386132 (2008-06-01), Griesinger
patent: 7394903 (2008-07-01), Herre et al.
patent: 7502743 (2009-03-01), Thumpudi et al.
patent: 7519538 (2009-04-01), Villemoes et al.
patent: 7602922 (2009-10-01), Breebaart et al.
patent: 2003/0009327 (2003-01-01), Nilsson et al.
patent: 2003/0050786 (2003-03-01), Jax et al.
patent: 2003/0115041 (2003-06-01), Chen et al.
patent: 2003/0115042 (2003-06-01), Chen et al.
patent: 2003/0115051 (2003-06-01), Chen et al.
patent: 2003/0115052 (2003-06-01), Chen et al.
patent: 2003/0236580 (2003-12-01), Wilson et al.
patent: 2004/0044527 (2004-03-01), Thumpudi et al.
patent: 2004/0049379 (2004-03-01), Thumpudi et al.
patent: 2004/0078194 (2004-04-01), Liljeryd et al.
patent: 2004/0225505 (2004-11-01), Andersen et al.
patent: 2004/0267543 (2004-12-01), Ojanpera
patent: 2005/0065780 (2005-03-01), Wiser et al.
patent: 2005/0165611 (2005-07-01), Mehrotra et al.
patent: 2005/0246164 (2005-11-01), Ojala et al.
patent: 2005/0267763 (2005-12-01), Ojanpera
patent: 2006/0013405 (2006-01-01), Oh et al.
patent: 2006/0106619 (2006-05-01), Iser et al.
patent: 2006/0259303 (2006-11-01), Bakis
patent: 2007/0081536 (2007-04-01), Kim et al.
patent: 2007/0112559 (2007-05-01), Schuijers et al.
patent: 2007/0140499 (2007-06-01), Davis
patent: 2007/0168197 (2007-07-01), Vasilache
patent: 2007/0172071 (2007-07-01), Mehrotra et al.
patent: 2007/0174062 (2007-07-01), Mehrotra et al.
patent: 0597649 (1994-05-01), None
patent: 0663740 (1995-07-01), None
patent: 0669724 (1995-08-01), None
patent: 0910927 (1999-04-01), None
patent: 0 924 962 (1999-06-01), None
patent: 0931386 (1999-07-01), None
patent: 1175030 (2002-01-01), None
patent: 1408484 (2004-04-01), None
patent: 1617418 (2006-01-01), None
patent: WO 99/43110 (1999-08-01), None
patent: WO 02/43054 (2002-05-01), None
patent: WO 2005/098821 (2005-10-01), None
P. Ekstrand, “Bandwidth extension of audio signals by spectral band replication,” in Proc. 1st IEEE Benelux Workshop on Model based Processing and Coding of Audio (MPCA-2002), Leuven, Belgium, Nov. 2002, pp. 73-79.
U. Kornagel, “Techniques for artificial bandwidth extension of telephone speech,” Signal Process., vol. 86, No. 6, pp. 1296-1306, Oct. 2005.
M. Dietz, L. Liljeryd, K. Kjöorling and O. Kunz, “Spectral Band Replication, a novel approach in audio coding”, Preprint 5553, 112th AES Convention, Munich (D), May 10-13, 2002.
Laaksonen, A.: Bandwidth extension in high-quality audio coding, Masters Thesis (May 30, 2005).
Soon, I.Y. Yeo, C.K. “Bandwidth Extension of Narrowband Speech using Soft-decision Vector Quantization” ICICS 2005.
Takehiro Moriya, Naoki Iwakami, Kazvnaga Ikeda and Satoshi Miki. “Extension and Complexity Reduction of TwinVQ Audio Coder” 1996.
Najaf-Zadeh et al. “Narrowband Perceptual Audio Coding: Enhancements for Speech” 2001.
Najafzadeh-Azghandi et al. “Improving Perceptual Coding of Narrowband Audio Signals At Low Rates” 1999.
Nordén et al. “Companded Quantization of Speech MDCT Coefficients” Mar. 2005.
Unno et al. “A Robust Narrowband to Wideband Extension System Featuring Enhanced Codebook Mapping”.
Chen. “Low-Complexity Wideband Speech Coding” 2002.
Ferreira. “Perceptual coding using sinusoidal modeling in the MDCT domain” 2002.
Fowler. “Adaptive Vector Quantization for the Coding of Nonstationary Sources” 1995.
Oshikiri et al. “A Scalable Coder Designed for 10-kHz Bandwidth Speech” 2002.
Jung et al. “A Bit-Rate/Bandwidth Scalable Speech Coder Based on ITU-T G.723.1 Standard” 2004.
Iwakami et al. “Fast Encoding Algorithms for MPEG-4 TwinVQ Audio Tool” 2002.
Bier, “Digital Audio Compression: Why, What, and How,” © 2000-2002 Berkeley Design Technology, Inc., Dec. 2, 2002, 15 pages.
Brandenburg, “MP3 and AAC Explained,” AES 17th International Conference on High Quality Audio Coding, 1999, 12 pages.
Gibson et al., Digital Compression for Multimedia, Title Page, Contents, “Chapter 8: Frequency Domain Speech and Audio Coding Standards,” Morgan K
Chen Wei-ge
He Chao
Koishida Kazuhito
Mehrotra Sanjeev
Borsetti Greg
Dorvil Richemond
Klarquist & Sparkman, LLP
Microsoft Corporation
LandOfFree
Shape and scale parameters for extended-band frequency coding does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shape and scale parameters for extended-band frequency coding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shape and scale parameters for extended-band frequency coding will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2665614