ES2044596T3 - Procedimiento para la transmision de una se\al. - Google Patents

Procedimiento para la transmision de una se\al.

Info

Publication number
ES2044596T3
ES2044596T3 ES90908950T ES90908950T ES2044596T3 ES 2044596 T3 ES2044596 T3 ES 2044596T3 ES 90908950 T ES90908950 T ES 90908950T ES 90908950 T ES90908950 T ES 90908950T ES 2044596 T3 ES2044596 T3 ES 2044596T3
Authority
ES
Spain
Prior art keywords
windows
blocks
transformation
signal sections
signal
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
ES90908950T
Other languages
English (en)
Inventor
Thomas Vaupel
Detlef Krahe
Gerhard Dickopp
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 OHG
Original Assignee
Telefunken Fernseh und Rundfunk 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 Telefunken Fernseh und Rundfunk GmbH filed Critical Telefunken Fernseh und Rundfunk GmbH
Application granted granted Critical
Publication of ES2044596T3 publication Critical patent/ES2044596T3/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)
  • Radar Systems Or Details Thereof (AREA)
  • Transplanting Machines (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Stereophonic System (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Television Systems (AREA)
  • Amplifiers (AREA)
  • Image Processing (AREA)
  • Glass Compositions (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Liquid Developers In Electrophotography (AREA)

Abstract

UNA SEÑAL, EN PARTICULAR UNA SEÑAL DE AUDIO, SE DIVIDE POR MEDIO DE VENTANAS EN BLOQUES CONSECUTIVOS QUE SE SUPERPONEN AL MENOS EN EL 50% Y LAS SECCIONES DE SEÑAL CONTENIDAS EN LOS BLOQUES SE EVALUAN POR MEDIO DE VENTANAS DE ANALISIS. LAS SEÑALES PARCIALES CONTENIDAS EN LOS BLOQUES SE TRANSFORMAN MEDIANTE UN PROCESO DE TRANSFORMACION QUE PERMITE LA COMPENSACION DE LOS COMPONENTES ALIAS, POR EJ., EL PROCESO DE "TIME DOMAIN ALIASING CANCELLATION" (CANCELACION DEL ALIAS DE DOMINIO DE TIEMPO) , Y LOS ESPECTROS RESULTANTES DE LA TRANSFORMACION ENTONCES, SE CODIFICAN Y SE TRANSMITEN. DESPUES DE LA TRANSMISION, SE DECODIFICAN Y SE RECONVIERTEN EN SEÑALES PARCIALES MEDIANTE TRANSFORMACION POSTERIOR. LOS BLOQUES CONTENIENDO LAS SEÑALES PARCIALES SE EVALUAN ENTONCES POR MEDIO DE VENTANAS DE SINTESIS Y SE JUNTAN DE NUEVO EL UNO AL OTRO DE TAL MANERA QUE SE SOBREPONEN. LAS FUNCIONES DE VENTANA DE LAS VENTANAS DE SINTESIS SE PUEDEN DETERMINAR EN FUNCION DE LAS FUNCIONES DE VENTANA LIBREMENTE SELECCIONADAS DE LAS CORRESPONDIENTES VENTANAS DE ANALISIS EN LA ZONA DE SUPERPOSICION UTILIZANDO LAS ECUACIONES DADAS EN LA DESCRIPCION. EL PROCESO PERMITE UNA BUENA RESOLUCION DE FRECUENCIA, QUE ES UN REQUISITO PREVIO PARA LA REDUCCION DE DATOS EFICAZ.
ES90908950T 1989-05-17 1990-05-17 Procedimiento para la transmision de una se\al. Expired - Lifetime ES2044596T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3915895 1989-05-17
DE3933475 1989-10-06

Publications (1)

Publication Number Publication Date
ES2044596T3 true ES2044596T3 (es) 1994-01-01

Family

ID=25880913

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90908950T Expired - Lifetime ES2044596T3 (es) 1989-05-17 1990-05-17 Procedimiento para la transmision de una se\al.

Country Status (12)

Country Link
US (1) US5227990A (es)
EP (1) EP0485390B1 (es)
JP (1) JP3065343B2 (es)
KR (1) KR0141581B1 (es)
AT (1) ATE92690T1 (es)
AU (1) AU5811390A (es)
DE (1) DE59002219D1 (es)
ES (1) ES2044596T3 (es)
FI (1) FI101112B (es)
HK (1) HK55696A (es)
HU (1) HU214139B (es)
WO (1) WO1990014719A1 (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3065343B2 (ja) * 1989-05-17 2000-07-17 トムソン コンシューマー エレクトロニクス セイルズ ゲゼルシャフト ミット ベシュレンクテル ハフツング 信号伝送方法
DE4020656A1 (de) * 1990-06-29 1992-01-02 Thomson Brandt Gmbh Verfahren zur uebertragung eines signals
JP3064471B2 (ja) 1991-03-29 2000-07-12 ソニー株式会社 直交変換符号化方法及び逆直交変換復号化装置
WO1995001673A1 (en) * 1993-06-30 1995-01-12 Royal Melbourne Institute Of Technology Filter windows for fourier transform signal compression
JP2570981B2 (ja) * 1993-09-17 1997-01-16 日本電気株式会社 帯域圧縮処理器、帯域伸張処理器および音声通信装置
JP2570603B2 (ja) * 1993-11-24 1997-01-08 日本電気株式会社 音声信号伝送装置およびノイズ抑圧装置
EP0823149A2 (en) * 1996-02-27 1998-02-11 Koninklijke Philips Electronics N.V. Method and arrangement for coding and decoding signals
KR100486208B1 (ko) * 1997-09-09 2005-06-16 삼성전자주식회사 돌비에이.시.-쓰리디코더의시간영역알리아싱제거장치및방법
SE517525C2 (sv) 1999-09-07 2002-06-18 Ericsson Telefon Ab L M Förfarande och anordning för konstruktion av digitala filter
RU2319223C2 (ru) * 2001-11-30 2008-03-10 Конинклейке Филипс Электроникс Н.В. Кодирование сигнала
CN1324557C (zh) * 2002-06-21 2007-07-04 汤姆森特许公司 从串行化的数字音频数据流中提取数字音频数据字的方法
US20040083097A1 (en) * 2002-10-29 2004-04-29 Chu Wai Chung Optimized windows and interpolation factors, and methods for optimizing windows, interpolation factors and linear prediction analysis in the ITU-T G.729 speech coding standard
USRE50158E1 (en) 2006-10-25 2024-10-01 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
PL3848928T3 (pl) 2006-10-25 2023-07-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Urządzenie i sposób do generowania wartości podpasm audio o wartościach zespolonych
KR101661374B1 (ko) * 2009-02-26 2016-09-29 파나소닉 인텔렉츄얼 프로퍼티 코포레이션 오브 아메리카 부호화 장치, 복호 장치 및 이들 방법
EP2619758B1 (en) 2010-10-15 2015-08-19 Huawei Technologies Co., Ltd. Audio signal transformer and inverse transformer, methods for audio signal analysis and synthesis

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3506912A1 (de) * 1985-02-27 1986-08-28 Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover Verfahren zur uebertragung 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
JP3065343B2 (ja) * 1989-05-17 2000-07-17 トムソン コンシューマー エレクトロニクス セイルズ ゲゼルシャフト ミット ベシュレンクテル ハフツング 信号伝送方法

Also Published As

Publication number Publication date
ATE92690T1 (de) 1993-08-15
HU904755D0 (en) 1991-12-30
KR920702101A (ko) 1992-08-12
FI915413A0 (fi) 1991-11-15
WO1990014719A1 (de) 1990-11-29
KR0141581B1 (ko) 1998-07-01
AU5811390A (en) 1990-12-18
JPH04505393A (ja) 1992-09-17
US5227990A (en) 1993-07-13
HUT60076A (en) 1992-07-28
FI101112B (fi) 1998-04-15
EP0485390B1 (de) 1993-08-04
HU214139B (en) 1997-12-29
HK55696A (en) 1996-04-03
DE59002219D1 (de) 1993-09-09
JP3065343B2 (ja) 2000-07-17
EP0485390A1 (de) 1992-05-20

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