Data processing: speech signal processing – linguistics – language – Audio signal bandwidth compression or expansion
Reexamination Certificate
2011-04-19
2011-04-19
Lerner, Martin (Department: 2626)
Data processing: speech signal processing, linguistics, language
Audio signal bandwidth compression or expansion
C704S216000, C704S219000, C381S002000, C370S470000
Reexamination Certificate
active
07930184
ABSTRACT:
A lossless audio codec encodes/decodes a lossless variable bit rate (VBR) bitstream with random access point (RAP) capability to initiate lossless decoding at a specified segment within a frame and/or multiple prediction parameter set (MPPS) capability partitioned to mitigate transient effects. This is accomplished with an adaptive segmentation technique that fixes segment start points based on constraints imposed by the existence of a desired RAP and/or detected transient in the frame and selects a optimum segment duration in each frame to reduce encoded frame payload subject to an encoded segment payload constraint. In general, the boundary constraints specify that a desired RAP or detected transient must lie within a certain number of analysis blocks of a segment start point.
REFERENCES:
patent: 6023233 (2000-02-01), Craven
patent: 6226616 (2001-05-01), You
patent: 6784812 (2004-08-01), Craven
patent: 7272567 (2007-09-01), Fejzo
patent: 7392195 (2008-06-01), Fejzo
patent: 7460993 (2008-12-01), Chen et al.
patent: 7668723 (2010-02-01), Fejzo
patent: 7689427 (2010-03-01), Vasilache
patent: 2003/0018884 (2003-01-01), Wise et al.
patent: 2004/0196913 (2004-10-01), Chakravarthy et al.
patent: 2005/0198346 (2005-09-01), Wang et al.
patent: 2007/0094027 (2007-04-01), Vasilache
patent: 2008/0059202 (2008-03-01), You
patent: 2009/0164223 (2009-06-01), Fejzo
patent: 2009/0164224 (2009-06-01), Fejzo
patent: 2010/0082352 (2010-04-01), Fejzo
patent: 0955731 (1999-11-01), None
patent: 1054514 (2007-09-01), None
patent: WO 00/74038 (2000-12-01), None
patent: WO00/79520 (2000-12-01), None
patent: WO03/077235 (2008-01-01), None
Fejzo et al., “DTS-HD: Technical Overview of Lossless Mode of Operation”, Audio Engineering Society (AES) 118th Convention, Barcelona, Spain, May 28-31, 2005, pp. 1 to 15.
Grant Notice Issued in Russian Counter-Part Application No. 2006137573; Filed: Oct. 24, 2006.
Supplementary European Search Report Issued in Corresponding European Patent Application No. EP 05731220, Filed Mar. 21, 2005.
Liebchen T et al: “MPEG-4 ALS: an emerging standard for lossless audio coding” Data Compression Conference, 2004. Proceedings. DCC 2004 Snowbird, UT, USA Mar. 23-25, 2004 Piscataway, NJ, USA IEEE, Mar. 23, 2004. pp. 439-448, XP010692571.
Liebchen T: “Lossless Audio Coding using Adaptive Multichannel Prediction” Internet Citation Oct. 5, 2002, XP002466533. p. 5.
Liebchen T et al: “Lossless Transform Coding of Audio Signals” Digital Audio: From Lossless to Transparent Coding, IEEE Signal Processing Workshop Jan. 1, 1997, XP000926390. pp. 1-10.
DTS, Inc.
Gifford Eric A.
Johnson William L.
Lerner Martin
Mohindra Guarav K.
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