ES2125739T3 - Procedimiento para codificar una señal audio digitalizada con una velocidad de exploracion baja. - Google Patents

Procedimiento para codificar una señal audio digitalizada con una velocidad de exploracion baja.

Info

Publication number
ES2125739T3
ES2125739T3 ES97906097T ES97906097T ES2125739T3 ES 2125739 T3 ES2125739 T3 ES 2125739T3 ES 97906097 T ES97906097 T ES 97906097T ES 97906097 T ES97906097 T ES 97906097T ES 2125739 T3 ES2125739 T3 ES 2125739T3
Authority
ES
Spain
Prior art keywords
scale factor
scale
coded
frequency
region
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
ES97906097T
Other languages
English (en)
Other versions
ES2125739T7 (es
Inventor
Oliver Dipl-Ing Kunz
Martin Dipl-Ing Dietz
Rainer Dipl-Ing Buchta
Jurgen Dipl-Ing Zeller
Karlheinz Dr-Ing Brandenburg
Martin Dipl-Ing Sieler
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7790553&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2125739(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of ES2125739T3 publication Critical patent/ES2125739T3/es
Application granted granted Critical
Publication of ES2125739T7 publication Critical patent/ES2125739T7/es
Active 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
    • 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
    • H04B1/665—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 using psychoacoustic properties of the ear, e.g. masking effect

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

EN UN PROCEDIMIENTO PARA CODIFICAR UNA SEÑAL DE AUDIO DIGITALIZADA CON UNA VELOCIDAD DE EXPLORACION PEQUEÑA, VARIAS LINEAS DE FRECUENCIA ADYACENTES DE LA SEÑAL DE AUDIO DIGITALIZADA, QUE ESTAN ASIGNADAS A UNA MISMA BANDA DE FACTORES DE ESCALA, SE CODIFICAN EN EL MISMO FACTOR DE ESCALA, EN QUE LAS BANDAS DE FACTORES DE ESCALA FORMAN UNA REGION DENTRO DE LA CUAL TODOS LOS FACTORES DE ESCALA SE CODIFICAN CON EL MISMO NUMERO DE BITS, QUE SE DETERMINA POR EL FACTOR DE ESCALA MAS ALTO DE LA REGION. LAS LINEAS DE FRECUENCIA DE AL MENOS LA REGION SUPERIOR DE LAS BANDAS DE FACTORES DE ESCALA SE CODIFICAN CON EL FACTOR DE ESCALA 0. PARA LA REGION SUPERIOR COMO MINIMO NO SE CODIFICA NINGUN FACTOR DE ESCALA.
ES97906097.7T 1996-04-04 1997-02-19 Procedimiento para codificar una señal audio digitalizada con una velocidad de exploración baja Active ES2125739T7 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19613643A DE19613643A1 (de) 1996-04-04 1996-04-04 Verfahren zum Codieren eines mit einer niedrigen Abtastrate digitalisierten Audiosignals
DE19613643 1996-04-04
PCT/EP1997/000792 WO1997038497A1 (de) 1996-04-04 1997-02-19 Verfahren zum codieren eines mit einer niedrigen abtastrate digitalisierten audiosignals

Publications (2)

Publication Number Publication Date
ES2125739T3 true ES2125739T3 (es) 1999-03-01
ES2125739T7 ES2125739T7 (es) 2014-04-08

Family

ID=7790553

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97906097.7T Active ES2125739T7 (es) 1996-04-04 1997-02-19 Procedimiento para codificar una señal audio digitalizada con una velocidad de exploración baja

Country Status (14)

Country Link
US (2) US6185539B1 (es)
EP (1) EP0832521B3 (es)
JP (1) JP3103382B2 (es)
KR (1) KR100266054B1 (es)
AT (1) ATE174167T1 (es)
AU (1) AU703390B2 (es)
CA (1) CA2241453C (es)
DE (2) DE19613643A1 (es)
DK (1) DK0832521T3 (es)
ES (1) ES2125739T7 (es)
NO (1) NO315298B1 (es)
RU (1) RU2134016C1 (es)
UA (1) UA48195C2 (es)
WO (1) WO1997038497A1 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3515903B2 (ja) * 1998-06-16 2004-04-05 松下電器産業株式会社 オーディオ符号化のための動的ビット割り当て方法及び装置
JP3813025B2 (ja) * 1998-10-29 2006-08-23 株式会社リコー デジタル音響信号符号化装置、デジタル音響信号符号化方法及びデジタル音響信号符号化プログラムを記録した媒体
US8290782B2 (en) * 2008-07-24 2012-10-16 Dts, Inc. Compression of audio scale-factors by two-dimensional transformation
DE102009028919A1 (de) 2009-08-27 2011-03-03 Robert Bosch Gmbh Verfahren und Steuergerät zur Direktabtastung einer Mehrzahl von Radiobändern
JP5316896B2 (ja) * 2010-03-17 2013-10-16 ソニー株式会社 符号化装置および符号化方法、復号装置および復号方法、並びにプログラム
US8552900B1 (en) * 2012-04-20 2013-10-08 Texas Instruments Incorporated System and method of clocking low sample rate analog to digital converters while minimizing linearity errors

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9001128A (nl) * 1990-05-14 1991-12-02 Philips Nv Kodeerinrichting bevattende een subbandkoder, en een zender voorzien van de kodeerinrichting.
EP0525774B1 (en) * 1991-07-31 1997-02-26 Matsushita Electric Industrial Co., Ltd. Digital audio signal coding system and method therefor
DE4236989C2 (de) * 1992-11-02 1994-11-17 Fraunhofer Ges Forschung Verfahren zur Übertragung und/oder Speicherung digitaler Signale mehrerer Kanäle
JP3150475B2 (ja) * 1993-02-19 2001-03-26 松下電器産業株式会社 量子化方法

Also Published As

Publication number Publication date
AU703390B2 (en) 1999-03-25
DK0832521T3 (da) 1999-08-16
JP3103382B2 (ja) 2000-10-30
UA48195C2 (uk) 2002-08-15
CA2241453A1 (en) 1997-10-16
US6185539B1 (en) 2001-02-06
WO1997038497A1 (de) 1997-10-16
DE59700044D1 (de) 1999-01-14
USRE44897E1 (en) 2014-05-13
DE19613643A1 (de) 1997-10-09
KR100266054B1 (ko) 2000-09-15
EP0832521B1 (de) 1998-12-02
NO982920D0 (no) 1998-06-23
EP0832521A1 (de) 1998-04-01
ATE174167T1 (de) 1998-12-15
NO982920L (no) 1998-07-23
ES2125739T7 (es) 2014-04-08
AU2091697A (en) 1997-10-29
EP0832521B3 (de) 2014-01-15
RU2134016C1 (ru) 1999-07-27
JPH11507198A (ja) 1999-06-22
CA2241453C (en) 2002-01-29
NO315298B1 (no) 2003-08-11
KR19990067625A (ko) 1999-08-25

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