ES2102987T3 - Codificador de transformacion con funcion de ventana adaptable. - Google Patents

Codificador de transformacion con funcion de ventana adaptable.

Info

Publication number
ES2102987T3
ES2102987T3 ES91110309T ES91110309T ES2102987T3 ES 2102987 T3 ES2102987 T3 ES 2102987T3 ES 91110309 T ES91110309 T ES 91110309T ES 91110309 T ES91110309 T ES 91110309T ES 2102987 T3 ES2102987 T3 ES 2102987T3
Authority
ES
Spain
Prior art keywords
blocks
window functions
overlapping
partial signals
window function
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
ES91110309T
Other languages
English (en)
Inventor
Ernst Dr-Ing Schroder
Jens Dipl-Ing Spille
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.)
Deutsche Thomson Brandt GmbH
Original Assignee
Deutsche Thomson Brandt GmbH
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 Deutsche Thomson Brandt GmbH filed Critical Deutsche Thomson Brandt GmbH
Application granted granted Critical
Publication of ES2102987T3 publication Critical patent/ES2102987T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Complex Calculations (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

2.1 POR UN PROCEDIMIENTO PARA LA TRANSFERENCIA DE UNA SEÑAL, MEDIANTE VENTANA CORRELATIVA, SON DISTRIBUIDOS BLOQUES QUE SOLAPAN, LAS SEÑALES PARCIALES CONTENIDAS EN LOS BLOQUES SON TRANSFERIDAS CONVERTIDAS CADA VEZ MEDIANTE TRANSFORMACION EN UN ESPECTRO, CODIFICA FINALMENTE EL ESPECTRO, DESPUES DE LA TRANSFERENCIA DECODIFICADA Y MEDIANTE TRANSFORMACION A SACUDIDAS SON TRANSFORMADAS OTRA VEZ EN SEÑALES PARCIALES. FINALMENTE LOS BLOQUES CONTENIENDO LAS SEÑALES PARCIALES SON ENSAMBLADOS SOLAPANDO, POR LO QUE LOS MARGENES SOLAPADOS DEL BLOQUE SON ASI ATRIBUIDOS, POR LO QUE LOS RESULTADOS DE LA FUNCION DE VENTANA SE CONFORMAN A UNO. 2.2 PARA LA EVITACION DE PERTURBACIONES EN BLOQUES PROXIMOS POR CAMBIOS DE FRECUENCIA, LAS FUNCIONES DE VENTANA Y LA LONGITUD DE LAS FUNCIONES DE VENTANA SON ELEGIDAS DEPENDIENDO DE LOS CAMBIOS DE FRECUENCIA DE LAS SEÑALES DE ENTRADA. 2.3 EL PROCEDIMIENTO ES APROPIADO PARA EL TRATAMIENTO DE SEÑALES DE AUDIO Y VIDEO, QUE SON INTERCAMBIADAS POR LA TRANSFERENCIA DE UNAREDUCCION DE DATOS.
ES91110309T 1990-06-29 1991-06-22 Codificador de transformacion con funcion de ventana adaptable. Expired - Lifetime ES2102987T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4020656A DE4020656A1 (de) 1990-06-29 1990-06-29 Verfahren zur uebertragung eines signals

Publications (1)

Publication Number Publication Date
ES2102987T3 true ES2102987T3 (es) 1997-08-16

Family

ID=6409284

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91110309T Expired - Lifetime ES2102987T3 (es) 1990-06-29 1991-06-22 Codificador de transformacion con funcion de ventana adaptable.

Country Status (10)

Country Link
US (1) US5321729A (es)
EP (1) EP0464534B1 (es)
JP (1) JP3187077B2 (es)
KR (1) KR100191835B1 (es)
AT (1) ATE153486T1 (es)
CA (1) CA2045970C (es)
DE (2) DE4020656A1 (es)
ES (1) ES2102987T3 (es)
HK (1) HK118997A (es)
SG (1) SG44927A1 (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100329876B1 (ko) * 1994-03-11 2002-08-13 코닌클리케 필립스 일렉트로닉스 엔.브이. 의사주기신호용전송시스템
CA2164025A1 (en) * 1995-01-04 1996-07-05 David Goodwin Shaw Sub-band signal processor
JP3747067B2 (ja) * 1996-02-27 2006-02-22 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 信号の符号化及び復号化方法及び装置
TW384434B (en) 1997-03-31 2000-03-11 Sony Corp Encoding method, device therefor, decoding method, device therefor and recording medium
WO1998051126A1 (en) * 1997-05-08 1998-11-12 Sgs-Thomson Microelectronics Asia Pacific (Pte) Ltd. Method and apparatus for frequency-domain downmixing with block-switch forcing for audio decoding functions
JP3806770B2 (ja) * 2000-03-17 2006-08-09 松下電器産業株式会社 窓処理装置および窓処理方法
US6654827B2 (en) 2000-12-29 2003-11-25 Hewlett-Packard Development Company, L.P. Portable computer system with an operating system-independent digital data player
FR2828949A1 (fr) * 2001-08-27 2003-02-28 Serge Glories Systeme d'analyse de signaux a niveaux multiples permettant leur caracterisation par un nombre reduit de parametres
US7630902B2 (en) * 2004-09-17 2009-12-08 Digital Rise Technology Co., Ltd. Apparatus and methods for digital audio coding using codebook application ranges
US8744862B2 (en) * 2006-08-18 2014-06-03 Digital Rise Technology Co., Ltd. Window selection based on transient detection and location to provide variable time resolution in processing frame-based data
US7895034B2 (en) * 2004-09-17 2011-02-22 Digital Rise Technology Co., Ltd. Audio encoding system
US7937271B2 (en) * 2004-09-17 2011-05-03 Digital Rise Technology Co., Ltd. Audio decoding using variable-length codebook application ranges
US8351554B2 (en) * 2006-06-05 2013-01-08 Exaudio Ab Signal extraction
US8630848B2 (en) 2008-05-30 2014-01-14 Digital Rise Technology Co., Ltd. Audio signal transient detection

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4048443A (en) * 1975-12-12 1977-09-13 Bell Telephone Laboratories, Incorporated Digital speech communication system for minimizing quantizing noise
DE3015234C2 (de) * 1980-04-21 1986-07-03 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Übertragung eines Signals
CA1242279A (en) * 1984-07-10 1988-09-20 Tetsu Taguchi Speech signal processor
DE3506912A1 (de) * 1985-02-27 1986-08-28 Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover Verfahren zur uebertragung eines audiosignals
DE3684047D1 (de) * 1985-07-02 1992-04-09 Matsushita Electric Ind Co Ltd Vorrichtung zur blockkodierung.
US5027376A (en) * 1985-10-30 1991-06-25 Microcom Systems, Inc. Data telecommunications system and method for transmitting compressed data
DE3703143A1 (de) * 1987-02-03 1988-08-11 Thomson Brandt Gmbh Verfahren zur uebertragung eines audiosignals
US4845859A (en) * 1988-01-19 1989-07-11 Evans Norval T Toothbrush holder and dryer system
US4821119A (en) * 1988-05-04 1989-04-11 Bell Communications Research, Inc. Method and apparatus for low bit-rate interframe video coding
EP0378609B1 (de) * 1988-05-26 1994-09-07 Thomson Consumer Electronics Sales GmbH Verfahren zur übertragung eines audiosignals
US5109417A (en) * 1989-01-27 1992-04-28 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
DE3902948A1 (de) * 1989-02-01 1990-08-09 Telefunken Fernseh & Rundfunk Verfahren zur uebertragung eines signals
KR930004311B1 (ko) * 1989-04-18 1993-05-22 미쯔비시덴끼 가부시끼가이샤 동화상 부호화 복호화장치
US5042069A (en) * 1989-04-18 1991-08-20 Pacific Communications Sciences, Inc. Methods and apparatus for reconstructing non-quantized adaptively transformed voice signals
AU5811390A (en) * 1989-05-17 1990-12-18 Telefunken Fernseh Und Rundfunk Gmbh Process for transmitting a signal
US5040217A (en) * 1989-10-18 1991-08-13 At&T Bell Laboratories Perceptual coding of audio signals

Also Published As

Publication number Publication date
US5321729A (en) 1994-06-14
EP0464534A2 (de) 1992-01-08
EP0464534B1 (de) 1997-05-21
HK118997A (en) 1997-09-05
ATE153486T1 (de) 1997-06-15
EP0464534A3 (en) 1993-02-17
JP3187077B2 (ja) 2001-07-11
SG44927A1 (en) 1997-12-19
CA2045970C (en) 1999-12-07
JPH04233836A (ja) 1992-08-21
KR100191835B1 (ko) 1999-06-15
DE59108708D1 (de) 1997-06-26
DE4020656A1 (de) 1992-01-02
CA2045970A1 (en) 1991-12-30

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