AU748414B2 - Post-amplification stereophonic to surround sound decoding circuit - Google Patents

Post-amplification stereophonic to surround sound decoding circuit Download PDF

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Publication number
AU748414B2
AU748414B2 AU50453/98A AU5045398A AU748414B2 AU 748414 B2 AU748414 B2 AU 748414B2 AU 50453/98 A AU50453/98 A AU 50453/98A AU 5045398 A AU5045398 A AU 5045398A AU 748414 B2 AU748414 B2 AU 748414B2
Authority
AU
Australia
Prior art keywords
signal
stereophonic
decoding circuit
decoding
central channel
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.)
Ceased
Application number
AU50453/98A
Other languages
English (en)
Other versions
AU5045398A (en
Inventor
Martin Pineau
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.)
Wwaves (usa) Inc
Original Assignee
WAVES USA Inc W
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 WAVES USA Inc W filed Critical WAVES USA Inc W
Publication of AU5045398A publication Critical patent/AU5045398A/en
Assigned to W.WAVES (U.S.A) INC. reassignment W.WAVES (U.S.A) INC. Alteration of Name(s) of Applicant(s) under S113 Assignors: XD LAB R&D INC.
Application granted granted Critical
Publication of AU748414B2 publication Critical patent/AU748414B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Amplifiers (AREA)
AU50453/98A 1997-11-14 1997-11-14 Post-amplification stereophonic to surround sound decoding circuit Ceased AU748414B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA1997/000882 WO1999026455A1 (en) 1997-11-14 1997-11-14 Post-amplification stereophonic to surround sound decoding circuit

Publications (2)

Publication Number Publication Date
AU5045398A AU5045398A (en) 1999-06-07
AU748414B2 true AU748414B2 (en) 2002-06-06

Family

ID=4173249

Family Applications (1)

Application Number Title Priority Date Filing Date
AU50453/98A Ceased AU748414B2 (en) 1997-11-14 1997-11-14 Post-amplification stereophonic to surround sound decoding circuit

Country Status (9)

Country Link
EP (1) EP1064824B1 (da)
JP (1) JP2001523937A (da)
AT (1) ATE218267T1 (da)
AU (1) AU748414B2 (da)
CA (1) CA2308576A1 (da)
DE (1) DE69712926T2 (da)
DK (1) DK1064824T3 (da)
ES (1) ES2176716T3 (da)
WO (1) WO1999026455A1 (da)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7251337B2 (en) 2003-04-24 2007-07-31 Dolby Laboratories Licensing Corporation Volume control in movie theaters
US7551745B2 (en) 2003-04-24 2009-06-23 Dolby Laboratories Licensing Corporation Volume and compression control in movie theaters
DE102004043521A1 (de) 2004-09-08 2006-03-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Erzeugen eines Multikanalsignals oder eines Parameterdatensatzes
SE0402649D0 (sv) 2004-11-02 2004-11-02 Coding Tech Ab Advanced methods of creating orthogonal signals
CN104936090B (zh) * 2015-05-04 2018-12-14 联想(北京)有限公司 一种音频数据的处理方法和音频处理器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2014404A (en) * 1978-02-10 1979-08-22 Nissan Motor A stereophonic speaker system for use in an automotive vehicle
US4382157A (en) * 1978-07-17 1983-05-03 Kenneth P. Wert, Sr. Multiple speaker type sound producing system
US5265166A (en) * 1991-10-30 1993-11-23 Panor Corp. Multi-channel sound simulation system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4132859A (en) * 1977-12-02 1979-01-02 Egils Ranga Sound reproducing apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2014404A (en) * 1978-02-10 1979-08-22 Nissan Motor A stereophonic speaker system for use in an automotive vehicle
US4382157A (en) * 1978-07-17 1983-05-03 Kenneth P. Wert, Sr. Multiple speaker type sound producing system
US5265166A (en) * 1991-10-30 1993-11-23 Panor Corp. Multi-channel sound simulation system

Also Published As

Publication number Publication date
ES2176716T3 (es) 2002-12-01
EP1064824A1 (en) 2001-01-03
EP1064824B1 (en) 2002-05-29
JP2001523937A (ja) 2001-11-27
DE69712926T2 (de) 2002-11-28
ATE218267T1 (de) 2002-06-15
AU5045398A (en) 1999-06-07
DE69712926D1 (de) 2002-07-04
WO1999026455A1 (en) 1999-05-27
CA2308576A1 (en) 1999-05-27
DK1064824T3 (da) 2002-09-16

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Legal Events

Date Code Title Description
PC1 Assignment before grant (sect. 113)

Owner name: W.WAVES (U.S.A) INC.

Free format text: THE FORMER OWNER WAS: XD LAB RANDD INC.

FGA Letters patent sealed or granted (standard patent)
MK14 Patent ceased section 143(a) (annual fees not paid) or expired