BRPI0817003A2 - Projeto eficiente de filtros de banco mdct/imdct para aplicativos de codificação de áudio e discurso - Google Patents

Projeto eficiente de filtros de banco mdct/imdct para aplicativos de codificação de áudio e discurso

Info

Publication number: BRPI0817003A2
Authority: BR; Brazil
Prior art keywords: imdct; mdct; speech; efficient; audio coding
Prior art date: 2007-09-19

Application number

Other languages

English (en)

Inventor

Ravi Kiran Chivukula

Yuriy Reznik

Original Assignee

Qualcomm Inc

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.)

2007-09-19

Filing date

2008-09-19

Publication date

2015-03-31

2008-09-19 Application filed by Qualcomm Inc filed Critical Qualcomm Inc

2015-03-31 Publication of BRPI0817003A2 publication Critical patent/BRPI0817003A2/pt

Classifications

- 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
- 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

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Mathematical Physics (AREA)
Data Mining & Analysis (AREA)
Theoretical Computer Science (AREA)
Computational Mathematics (AREA)
Mathematical Analysis (AREA)
Mathematical Optimization (AREA)
Pure & Applied Mathematics (AREA)
Software Systems (AREA)
Signal Processing (AREA)
Algebra (AREA)
General Engineering & Computer Science (AREA)
Discrete Mathematics (AREA)
Spectroscopy & Molecular Physics (AREA)
Computational Linguistics (AREA)
Databases & Information Systems (AREA)
Health & Medical Sciences (AREA)
Audiology, Speech & Language Pathology (AREA)
Human Computer Interaction (AREA)
Acoustics & Sound (AREA)
Multimedia (AREA)
Compression, Expansion, Code Conversion, And Decoders (AREA)
Complex Calculations (AREA)
Analogue/Digital Conversion (AREA)

BRPI0817003 2007-09-19 2008-09-19 Projeto eficiente de filtros de banco mdct/imdct para aplicativos de codificação de áudio e discurso BRPI0817003A2 (pt)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
US97370907P	2007-09-19	2007-09-19
US98940007P	2007-11-20	2007-11-20
US12/212,920 US8548815B2 (en)	2007-09-19	2008-09-18	Efficient design of MDCT / IMDCT filterbanks for speech and audio coding applications
PCT/US2008/077129 WO2009039451A2 (en)	2007-09-19	2008-09-19	Efficient design of mdct / imdct filterbanks for speech and audio coding applications

Publications (1)

Publication Number	Publication Date
BRPI0817003A2 true BRPI0817003A2 (pt)	2015-03-31

Family

ID=40039658

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BRPI0817003 BRPI0817003A2 (pt)	2007-09-19	2008-09-19	Projeto eficiente de filtros de banco mdct/imdct para aplicativos de codificação de áudio e discurso

Country Status (11)

Country	Link
US (1)	US8548815B2 (pt)
EP (1)	EP2206111A2 (pt)
JP (1)	JP2010539625A (pt)
KR (1)	KR101329514B1 (pt)
CN (1)	CN101796578B (pt)
AU (1)	AU2008302070B2 (pt)
BR (1)	BRPI0817003A2 (pt)
CA (1)	CA2695741A1 (pt)
MX (1)	MX2010002848A (pt)
TW (1)	TWI398854B (pt)
WO (1)	WO2009039451A2 (pt)

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US9110849B2 (en)	2009-04-15	2015-08-18	Qualcomm Incorporated	Computing even-sized discrete cosine transforms
US9069713B2 (en)	2009-06-05	2015-06-30	Qualcomm Incorporated	4X4 transform for media coding
CN101930425B (zh) *	2009-06-24	2015-09-30	华为技术有限公司	信号处理方法、数据处理方法及装置
US9081733B2 (en)	2009-06-24	2015-07-14	Qualcomm Incorporated	16-point transform for media data coding
US9075757B2 (en)	2009-06-24	2015-07-07	Qualcomm Incorporated	16-point transform for media data coding
US9118898B2 (en)	2009-06-24	2015-08-25	Qualcomm Incorporated	8-point transform for media data coding
EP2273495A1 (en) *	2009-07-07	2011-01-12	TELEFONAKTIEBOLAGET LM ERICSSON (publ)	Digital audio signal processing system
CN102104776A (zh) *	2009-12-21	2011-06-22	康佳集团股份有限公司	一种网络电视平台mpeg音频多相合成滤波方法
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ES2501493T3 (es)	2010-08-12	2014-10-02	Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.	Re-muestreo de señales de salida de códecs de audio basados en QMF
EP2645365B1 (en)	2010-11-24	2018-01-17	LG Electronics Inc.	Speech signal encoding method and speech signal decoding method
US9824066B2 (en)	2011-01-10	2017-11-21	Qualcomm Incorporated	32-point transform for media data coding
EP2691951B1 (en)	2011-03-28	2016-08-24	Dolby Laboratories Licensing Corporation	Reduced complexity transform for a low-frequency-effects channel
CN102568485B (zh) *	2011-12-30	2013-12-11	展讯通信（上海）有限公司	音频信号的频时转换方法及装置
JP6089878B2 (ja) *	2013-03-28	2017-03-08	富士通株式会社	直交変換装置、直交変換方法及び直交変換用コンピュータプログラムならびにオーディオ復号装置
EP2830055A1 (en) *	2013-07-22	2015-01-28	Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.	Context-based entropy coding of sample values of a spectral envelope
CN105096958B (zh)	2014-04-29	2017-04-12	华为技术有限公司	音频编码方法及相关装置
EP3616196A4 (en)	2017-04-28	2021-01-20	DTS, Inc.	Audio coder window and transform implementations
CN111294782B (zh) *	2020-02-25	2022-02-08	北京百瑞互联技术有限公司	一种加速编解码专用集成电路及方法
CN114448443A (zh) *	2021-12-23	2022-05-06	天翼云科技有限公司	一种cdn监控数据的压缩方法、装置和电子设备

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FR2675969B1 (fr)	1991-04-24	1994-02-11	France Telecom	Procede et dispositif de codage-decodage d'un signal numerique.
DE69428030T2 (de)	1993-06-30	2002-05-29	Sony Corp., Tokio/Tokyo	Digitales signalkodierungsgerät, dazugehöriges dekodiergerät und aufzeichnungsträger
US5719998A (en)	1995-06-12	1998-02-17	S3, Incorporated	Partitioned decompression of audio data using audio decoder engine for computationally intensive processing
US6154762A (en)	1998-06-03	2000-11-28	Microsoft Corporation	Fast system and method for computing modulated lapped transforms
US20020106020A1 (en)	2000-02-09	2002-08-08	Cheng T. C.	Fast method for the forward and inverse MDCT in audio coding
JP2002135122A (ja)	2000-10-19	2002-05-10	Nec Corp	オーディオ信号符号化装置
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CN100546197C (zh)	2006-08-17	2009-09-30	上海交通大学	适用于多音频标准通用滤波器单元的vlsi实现方法
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2008
- 2008-09-18 US US12/212,920 patent/US8548815B2/en not_active Expired - Fee Related
- 2008-09-19 CA CA2695741A patent/CA2695741A1/en not_active Abandoned
- 2008-09-19 EP EP08832344A patent/EP2206111A2/en not_active Ceased
- 2008-09-19 JP JP2010526031A patent/JP2010539625A/ja active Pending
- 2008-09-19 WO PCT/US2008/077129 patent/WO2009039451A2/en not_active Ceased
- 2008-09-19 AU AU2008302070A patent/AU2008302070B2/en not_active Ceased
- 2008-09-19 KR KR1020107008491A patent/KR101329514B1/ko not_active Expired - Fee Related
- 2008-09-19 MX MX2010002848A patent/MX2010002848A/es active IP Right Grant
- 2008-09-19 BR BRPI0817003 patent/BRPI0817003A2/pt not_active IP Right Cessation
- 2008-09-19 CN CN2008801059221A patent/CN101796578B/zh active Active
- 2008-09-19 TW TW097136172A patent/TWI398854B/zh not_active IP Right Cessation

Also Published As

Publication number	Publication date
US20090094038A1 (en)	2009-04-09
TWI398854B (zh)	2013-06-11
AU2008302070B2 (en)	2011-06-16
CA2695741A1 (en)	2009-03-26
WO2009039451A3 (en)	2009-05-22
TW200926146A (en)	2009-06-16
AU2008302070A1 (en)	2009-03-26
KR20100063122A (ko)	2010-06-10
CN101796578B (zh)	2013-04-10
HK1143240A1 (en)	2010-12-24
MX2010002848A (es)	2010-04-01
CN101796578A (zh)	2010-08-04
EP2206111A2 (en)	2010-07-14
WO2009039451A2 (en)	2009-03-26
KR101329514B1 (ko)	2013-11-13
JP2010539625A (ja)	2010-12-16
US8548815B2 (en)	2013-10-01

Publication	Publication Date	Title
BRPI0817003A2 (pt)	2015-03-31	Projeto eficiente de filtros de banco mdct/imdct para aplicativos de codificação de áudio e discurso
BRPI0818405A2 (pt)	2016-10-11	codificação de áudio e fala escalonável utilizando codificação combinatória de espectro mdct
GB0623915D0 (en)	2007-01-10	Phonetic decoding and concatentive speech synthesis
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EP2173035A4 (en)	2010-11-17	ENCODING DEVICE AND DECODING DEVICE
BRPI0818056A2 (pt)	2015-03-31	Aparelho e métodos para hemodiálise
EP1922723A4 (en)	2010-09-29	SYSTEMS AND METHODS FOR RESPONDING TO A VOICE STATEMENT IN A NATURAL LANGUAGE
DE602007010795D1 (de)	2011-01-05	Blattsauger und -häcksler
DK2293289T3 (da)	2012-06-25	Talegenkendelsessystem og fremgangsmåde
BRPI0814418A2 (pt)	2015-01-20	Transcrição de fala-para-texto para dispostivos de comunicação pessoal
BRPI0907242A2 (pt)	2015-07-14	Métodos e aparelho para codificação e decodificação utilizando-se filtragem paramétrica
DK3573056T3 (da)	2022-10-03	Audiokoder og audioafkoder
EP2095363A4 (en)	2011-07-20	RECOGNITION OF SPOKEN LANGUAGE IN WORKABLE AUDIO STREAMS
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BRPI1105248A2 (pt)	2016-05-03	decodificador de áudio e método de decodificação que utilizam downmixing eficiente
EP1899962A4 (en)	2014-09-10	AUDIO CODEC POSTFILTER
DE602006002287D1 (de)	2008-10-02	Lernen zur Spracherkennung
BRPI0910507A2 (pt)	2016-07-26	uso eficiente das informações sobre fases na codificação e decodificação de áudio
EP1906706A4 (en)	2008-11-12	AUDIO DECODER
GB0704622D0 (en)	2007-04-18	Speech coding system and method
EP2016990A4 (en)	2012-12-26	GAS-WATER-SEPARATOR
EP2211553A4 (en)	2011-02-02	CODIER AND DECODER
EP2005419A4 (en)	2011-03-30	LANGUAGE REPRODUCTION USING MDCT COEFFICIENTS

Legal Events

Date	Code	Title	Description
2016-09-20	B08F	Application fees: application dismissed [chapter 8.6 patent gazette]	Free format text: REFERENTE A 8A ANUIDADE.
2017-01-17	B08K	Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]	Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2385 DE 20-09-2016 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.