MXPA06003508A - Metodo para transformar una senal digital del dominio de tiempo al dominio de frecuencia y viceversa. - Google Patents

Metodo para transformar una senal digital del dominio de tiempo al dominio de frecuencia y viceversa.

Info

Publication number
MXPA06003508A
MXPA06003508A MXPA06003508A MXPA06003508A MXPA06003508A MX PA06003508 A MXPA06003508 A MX PA06003508A MX PA06003508 A MXPA06003508 A MX PA06003508A MX PA06003508 A MXPA06003508 A MX PA06003508A MX PA06003508 A MXPA06003508 A MX PA06003508A
Authority
MX
Mexico
Prior art keywords
transformation
coefficients
matrix
tdcm
digital signal
Prior art date
Application number
MXPA06003508A
Other languages
English (en)
Spanish (es)
Inventor
Rongshan Yu
Haibin Huang
Xiao Lin
Susanto Rahardja
Original Assignee
Agency Science Tech & Res
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 Agency Science Tech & Res filed Critical Agency Science Tech & Res
Publication of MXPA06003508A publication Critical patent/MXPA06003508A/es

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/141—Discrete Fourier transforms
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/148—Wavelet transforms
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0212—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Data Mining & Analysis (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • General Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Discrete Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Complex Calculations (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
MXPA06003508A 2003-09-29 2004-05-06 Metodo para transformar una senal digital del dominio de tiempo al dominio de frecuencia y viceversa. MXPA06003508A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US50744003P 2003-09-29 2003-09-29
US50721003P 2003-09-29 2003-09-29
PCT/SG2004/000121 WO2005031596A1 (en) 2003-09-29 2004-05-06 Method for transforming a digital signal from the time domain into the frequency domain and vice versa

Publications (1)

Publication Number Publication Date
MXPA06003508A true MXPA06003508A (es) 2007-01-25

Family

ID=34396342

Family Applications (2)

Application Number Title Priority Date Filing Date
MXPA06003508A MXPA06003508A (es) 2003-09-29 2004-05-06 Metodo para transformar una senal digital del dominio de tiempo al dominio de frecuencia y viceversa.
MXPA06003509A MXPA06003509A (es) 2003-09-29 2004-05-06 Metodo para realizar una transformacion de dominio de una senal digital de dominio de tiempo al dominio de frecuencia y veceversa.

Family Applications After (1)

Application Number Title Priority Date Filing Date
MXPA06003509A MXPA06003509A (es) 2003-09-29 2004-05-06 Metodo para realizar una transformacion de dominio de una senal digital de dominio de tiempo al dominio de frecuencia y veceversa.

Country Status (8)

Country Link
US (3) US20070276894A1 (enExample)
EP (3) EP1687736A1 (enExample)
JP (3) JP4429316B2 (enExample)
KR (2) KR100885437B1 (enExample)
MX (2) MXPA06003508A (enExample)
MY (2) MY139788A (enExample)
TW (3) TW200527224A (enExample)
WO (3) WO2005031597A1 (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10331803A1 (de) * 2003-07-14 2005-02-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Umsetzen in eine transformierte Darstellung oder zum inversen Umsetzen der transformierten Darstellung
WO2005031597A1 (en) * 2003-09-29 2005-04-07 Agency For Science, Technology And Research Process and device for determining a transforming element for a given transformation function, method and device for transforming a digital signal from the time domain into the frequency domain and vice versa and computer readable medium
DE10345996A1 (de) * 2003-10-02 2005-04-28 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Verarbeiten von wenigstens zwei Eingangswerten
US7577307B2 (en) * 2005-04-12 2009-08-18 The Aerospace Corporation Fast adaptive lifting lossless wavelet transform
US7574064B2 (en) * 2005-04-12 2009-08-11 The Aerospace Corporation Fast lifting lossless wavelet transform
US8392176B2 (en) 2006-04-10 2013-03-05 Qualcomm Incorporated Processing of excitation in audio coding and decoding
US20100292986A1 (en) * 2007-03-16 2010-11-18 Nokia Corporation encoder
US20080288568A1 (en) * 2007-05-14 2008-11-20 Hou Hsieh S Low power Fast Hadamard transform
US8428957B2 (en) 2007-08-24 2013-04-23 Qualcomm Incorporated Spectral noise shaping in audio coding based on spectral dynamics in frequency sub-bands
US8548815B2 (en) 2007-09-19 2013-10-01 Qualcomm Incorporated Efficient design of MDCT / IMDCT filterbanks for speech and audio coding applications
EP2211335A1 (en) * 2009-01-21 2010-07-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method and computer program for obtaining a parameter describing a variation of a signal characteristic of a signal
US8885701B2 (en) * 2010-09-08 2014-11-11 Samsung Electronics Co., Ltd. Low complexity transform coding using adaptive DCT/DST for intra-prediction
US8995532B2 (en) * 2010-09-30 2015-03-31 Texas Instruments Incorporated Low complexity large transform
WO2015164572A1 (en) 2014-04-25 2015-10-29 Dolby Laboratories Licensing Corporation Audio segmentation based on spatial metadata
US9794712B2 (en) 2014-04-25 2017-10-17 Dolby Laboratories Licensing Corporation Matrix decomposition for rendering adaptive audio using high definition audio codecs
CN105895109B (zh) * 2016-05-10 2019-02-26 信阳师范学院 一种基于dwt和dct的数字语音取证和篡改恢复方法
KR20180089858A (ko) * 2017-02-01 2018-08-09 엘지전자 주식회사 레이어드 기븐스 변환을 이용하여 변환을 수행하는 방법 및 장치
EP3616196A4 (en) 2017-04-28 2021-01-20 DTS, Inc. Audio coder window and transform implementations
US12278630B2 (en) * 2021-09-24 2025-04-15 Altera Corporation Fast fourier transform (FFT) based digital signal processing (DSP) engine

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031038A (en) * 1975-06-16 1977-06-21 The Dow Chemical Company Water insoluble chelate exchange resins having a crosslinked polymer matrix and pendant thereto a plurality of methyleneaminopyridine groups
US5339265A (en) * 1992-08-31 1994-08-16 University Of Maryland At College Park Optimal unified architectures for the real-time computation of time-recursive discrete sinusoidal transforms
US5523847A (en) * 1992-10-09 1996-06-04 International Business Machines Corporation Digital image processor for color image compression
WO1996015627A2 (en) * 1994-11-09 1996-05-23 Philips Electronics N.V. System and method for transmitting picture or sound signals
US5999656A (en) * 1997-01-17 1999-12-07 Ricoh Co., Ltd. Overlapped reversible transforms for unified lossless/lossy compression
US6058215A (en) 1997-04-30 2000-05-02 Ricoh Company, Ltd. Reversible DCT for lossless-lossy compression
US6073153A (en) * 1998-06-03 2000-06-06 Microsoft Corporation Fast system and method for computing modulated lapped transforms
US6421464B1 (en) * 1998-12-16 2002-07-16 Fastvdo Llc Fast lapped image transforms using lifting steps
AU3751900A (en) 1999-03-17 2000-10-04 Johns Hopkins University, The A fast multiplierless transform
US6681052B2 (en) * 2000-01-15 2004-01-20 Sony Corporation Methods and systems for performing inverse quantization and inverse weighting of DV video
US7218789B2 (en) * 2000-12-01 2007-05-15 Lizardtech, Inc. Method for lossless encoding of image data by approximating linear transforms and preserving selected properties for image processing
US6934676B2 (en) * 2001-05-11 2005-08-23 Nokia Mobile Phones Ltd. Method and system for inter-channel signal redundancy removal in perceptual audio coding
DE10129240A1 (de) * 2001-06-18 2003-01-02 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Verarbeiten von zeitdiskreten Audio-Abtastwerten
JP3971135B2 (ja) 2001-07-11 2007-09-05 株式会社テクノマセマティカル Ｄｃｔ行列分解方法及びｄｃｔ装置
US7082450B2 (en) * 2001-08-30 2006-07-25 Nokia Corporation Implementation of a transform and of a subsequent quantization
JP3796432B2 (ja) 2001-10-31 2006-07-12 キヤノン株式会社 フィルタ処理装置およびフィルタ処理方法
DE10217297A1 (de) * 2002-04-18 2003-11-06 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Codieren eines zeitdiskreten Audiosignals und Vorrichtung und Verfahren zum Decodieren von codierten Audiodaten
JP3902990B2 (ja) * 2002-07-02 2007-04-11 キヤノン株式会社 アダマール変換処理方法及びその装置
DE10236694A1 (de) * 2002-08-09 2004-02-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum skalierbaren Codieren und Vorrichtung und Verfahren zum skalierbaren Decodieren
DE10331803A1 (de) * 2003-07-14 2005-02-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Umsetzen in eine transformierte Darstellung oder zum inversen Umsetzen der transformierten Darstellung
WO2005031597A1 (en) * 2003-09-29 2005-04-07 Agency For Science, Technology And Research Process and device for determining a transforming element for a given transformation function, method and device for transforming a digital signal from the time domain into the frequency domain and vice versa and computer readable medium

Also Published As

Publication number Publication date
TWI343534B (en) 2011-06-11
KR100885438B1 (ko) 2009-02-24
WO2005031596A1 (en) 2005-04-07
JP2007507789A (ja) 2007-03-29
MY139788A (en) 2009-10-30
US20080030385A1 (en) 2008-02-07
US8126950B2 (en) 2012-02-28
JP2007507790A (ja) 2007-03-29
US8126951B2 (en) 2012-02-28
MY137920A (en) 2009-03-31
JP4429316B2 (ja) 2010-03-10
KR20070015363A (ko) 2007-02-02
KR100885437B1 (ko) 2009-02-24
WO2005031597A1 (en) 2005-04-07
JP4942793B2 (ja) 2012-05-30
EP1668533A1 (en) 2006-06-14
EP1668533A4 (en) 2013-08-21
US20070276893A1 (en) 2007-11-29
EP1668534A1 (en) 2006-06-14
TW200524290A (en) 2005-07-16
TWI348282B (en) 2011-09-01
JP2009266250A (ja) 2009-11-12
TW200527224A (en) 2005-08-16
EP1668534A4 (en) 2013-08-21
US20070276894A1 (en) 2007-11-29
MXPA06003509A (es) 2007-01-25
KR20070026325A (ko) 2007-03-08
TW200529040A (en) 2005-09-01
EP1687736A1 (en) 2006-08-09
WO2005031595A1 (en) 2005-04-07

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