DE69533259D1 - Nichtlineares quantisieren eines informationssignales - Google Patents

Nichtlineares quantisieren eines informationssignales

Info

Publication number
DE69533259D1
DE69533259D1 DE69533259T DE69533259T DE69533259D1 DE 69533259 D1 DE69533259 D1 DE 69533259D1 DE 69533259 T DE69533259 T DE 69533259T DE 69533259 T DE69533259 T DE 69533259T DE 69533259 D1 DE69533259 D1 DE 69533259D1
Authority
DE
Germany
Prior art keywords
information signal
linear quantization
quantization
linear
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69533259T
Other languages
English (en)
Other versions
DE69533259T2 (de
Inventor
Robert Heddle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69533259D1 publication Critical patent/DE69533259D1/de
Publication of DE69533259T2 publication Critical patent/DE69533259T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H04B14/046—Systems or methods for reducing noise or bandwidth
    • H04B14/048—Non linear compression or expansion

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69533259T 1995-05-03 1995-05-03 Nichtlineares quantisieren eines informationssignales Expired - Lifetime DE69533259T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1995/005505 WO1996035269A1 (en) 1995-05-03 1995-05-03 Non-linearly quantizing an information signal

Publications (2)

Publication Number Publication Date
DE69533259D1 true DE69533259D1 (de) 2004-08-19
DE69533259T2 DE69533259T2 (de) 2005-08-18

Family

ID=22249072

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69533259T Expired - Lifetime DE69533259T2 (de) 1995-05-03 1995-05-03 Nichtlineares quantisieren eines informationssignales

Country Status (4)

Country Link
US (1) US5946652A (de)
EP (1) EP0772925B1 (de)
DE (1) DE69533259T2 (de)
WO (1) WO1996035269A1 (de)

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KR100243430B1 (ko) * 1997-12-31 2000-02-01 구자홍 적응형 양자화 제어방법
GB2349054A (en) * 1999-04-16 2000-10-18 Nds Ltd Digital audio signal encoders
EP1314158A1 (de) * 2000-08-25 2003-05-28 Koninklijke Philips Electronics N.V. Verfahren und gerät zur reduzierung der wortlänge eines digitalen eingangssignals und verfahren und gerät zur rückgewinnung des digitalen eingangssignals
JP2002204449A (ja) * 2000-12-28 2002-07-19 Pioneer Electronic Corp 量子化単位設定装置及び量子化単位設定方法、符号化装置及び符号化方法並びに情報記録媒体
US8374237B2 (en) 2001-03-02 2013-02-12 Dolby Laboratories Licensing Corporation High precision encoding and decoding of video images
US6950794B1 (en) * 2001-11-20 2005-09-27 Cirrus Logic, Inc. Feedforward prediction of scalefactors based on allowable distortion for noise shaping in psychoacoustic-based compression
US7325023B2 (en) * 2003-09-29 2008-01-29 Sony Corporation Method of making a window type decision based on MDCT data in audio encoding
US7426462B2 (en) * 2003-09-29 2008-09-16 Sony Corporation Fast codebook selection method in audio encoding
US7349842B2 (en) * 2003-09-29 2008-03-25 Sony Corporation Rate-distortion control scheme in audio encoding
US7283968B2 (en) 2003-09-29 2007-10-16 Sony Corporation Method for grouping short windows in audio encoding
US20050114134A1 (en) * 2003-11-26 2005-05-26 Microsoft Corporation Method and apparatus for continuous valued vocal tract resonance tracking using piecewise linear approximations
DE102004041418A1 (de) * 2004-08-26 2006-03-09 Micronas Gmbh Verfahren zur Codierung eines ersten und zweiten Datenwortes und Verfahren zur Decodierung eines codierten Datenwortes
EP2122615B1 (de) * 2006-10-20 2011-05-11 Dolby Sweden AB Vorrichtung und verfahren zum codieren eines informationssignals
TWI348868B (en) * 2006-11-27 2011-09-11 Princeton Technology Corp Data transformation device
US20090253457A1 (en) * 2008-04-04 2009-10-08 Apple Inc. Audio signal processing for certification enhancement in a handheld wireless communications device
JP2010060989A (ja) * 2008-09-05 2010-03-18 Sony Corp 演算装置および方法、量子化装置および方法、オーディオ符号化装置および方法、並びにプログラム
JP2010078965A (ja) * 2008-09-26 2010-04-08 Sony Corp 演算装置および方法、量子化装置および方法、並びにプログラム
JP4702645B2 (ja) * 2008-09-26 2011-06-15 ソニー株式会社 演算装置および方法、量子化装置および方法、並びにプログラム

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US4202018A (en) * 1978-09-27 1980-05-06 Soundstream, Inc. Apparatus and method for providing error recognition and correction of recorded digital information
US4386237A (en) * 1980-12-22 1983-05-31 Intelsat NIC Processor using variable precision block quantization
CA1253255A (en) * 1983-05-16 1989-04-25 Nec Corporation System for simultaneously coding and decoding a plurality of signals
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JPH0734291B2 (ja) * 1986-07-28 1995-04-12 株式会社日立製作所 デイジタル信号記録再生システム
US4809274A (en) * 1986-09-19 1989-02-28 M/A-Com Government Systems, Inc. Digital audio companding and error conditioning
US4870685A (en) * 1986-10-26 1989-09-26 Ricoh Company, Ltd. Voice signal coding method
US5341457A (en) * 1988-12-30 1994-08-23 At&T Bell Laboratories Perceptual coding of audio signals
JPH02309820A (ja) * 1989-05-25 1990-12-25 Sony Corp デイジタル信号処理装置
US5166686A (en) * 1989-06-30 1992-11-24 Nec Corporation Variable length block coding with changing characteristics of input samples
JP2844695B2 (ja) * 1989-07-19 1999-01-06 ソニー株式会社 信号符号化装置
US5185800A (en) * 1989-10-13 1993-02-09 Centre National D'etudes Des Telecommunications Bit allocation device for transformed digital audio broadcasting signals with adaptive quantization based on psychoauditive criterion
US5150387A (en) * 1989-12-21 1992-09-22 Kabushiki Kaisha Toshiba Variable rate encoding and communicating apparatus
JP2861238B2 (ja) * 1990-04-20 1999-02-24 ソニー株式会社 ディジタル信号符号化方法
JPH0472909A (ja) * 1990-07-13 1992-03-06 Sony Corp オーディオ信号の量子化誤差低減装置
US5134475A (en) * 1990-12-11 1992-07-28 At&T Bell Laboratories Adaptive leak hdtv encoder
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ATE173366T1 (de) * 1991-09-30 1998-11-15 Sony Corp Verfahren und anordnung zur audiodatenkompression
JP3104400B2 (ja) * 1992-04-27 2000-10-30 ソニー株式会社 オーディオ信号符号化装置及び方法
JP3189401B2 (ja) * 1992-07-29 2001-07-16 ソニー株式会社 音声データ符号化方法及び音声データ符号化装置
US5632003A (en) * 1993-07-16 1997-05-20 Dolby Laboratories Licensing Corporation Computationally efficient adaptive bit allocation for coding method and apparatus
US5623577A (en) * 1993-07-16 1997-04-22 Dolby Laboratories Licensing Corporation Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions
US5608713A (en) * 1994-02-09 1997-03-04 Sony Corporation Bit allocation of digital audio signal blocks by non-linear processing

Also Published As

Publication number Publication date
US5946652A (en) 1999-08-31
EP0772925A1 (de) 1997-05-14
EP0772925B1 (de) 2004-07-14
DE69533259T2 (de) 2005-08-18
WO1996035269A1 (en) 1996-11-07

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Legal Events

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8320 Willingness to grant licences declared (paragraph 23)