AU5109899A - Multi-channel audio surround system - Google Patents

Multi-channel audio surround system

Info

Publication number
AU5109899A
AU5109899A AU51098/99A AU5109899A AU5109899A AU 5109899 A AU5109899 A AU 5109899A AU 51098/99 A AU51098/99 A AU 51098/99A AU 5109899 A AU5109899 A AU 5109899A AU 5109899 A AU5109899 A AU 5109899A
Authority
AU
Australia
Prior art keywords
channel audio
surround system
audio surround
channel
surround
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.)
Withdrawn
Application number
AU51098/99A
Inventor
Anthony Grimani
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.)
Lucasfilm Ltd
Original Assignee
Lucasfilm Ltd
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 Lucasfilm Ltd filed Critical Lucasfilm Ltd
Publication of AU5109899A publication Critical patent/AU5109899A/en
Withdrawn legal-status Critical Current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
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Stereophonic System (AREA)
AU51098/99A 1998-07-17 1999-07-16 Multi-channel audio surround system Withdrawn AU5109899A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US9321398P 1998-07-17 1998-07-17
US60093213 1998-07-17
PCT/US1999/016213 WO2000004744A1 (en) 1998-07-17 1999-07-16 Multi-channel audio surround system

Publications (1)

Publication Number Publication Date
AU5109899A true AU5109899A (en) 2000-02-07

Family

ID=22237774

Family Applications (1)

Application Number Title Priority Date Filing Date
AU51098/99A Withdrawn AU5109899A (en) 1998-07-17 1999-07-16 Multi-channel audio surround system

Country Status (2)

Country Link
AU (1) AU5109899A (en)
WO (1) WO2000004744A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6624873B1 (en) 1998-05-05 2003-09-23 Dolby Laboratories Licensing Corporation Matrix-encoded surround-sound channels in a discrete digital sound format
US7212872B1 (en) 2000-05-10 2007-05-01 Dts, Inc. Discrete multichannel audio with a backward compatible mix
US7298852B2 (en) 2001-07-11 2007-11-20 American Technology Corporation Dynamic power sharing in a multi-channel sound system
ES2373728T3 (en) 2004-07-14 2012-02-08 Koninklijke Philips Electronics N.V. METHOD, DEVICE, CODING DEVICE, DECODING DEVICE AND AUDIO SYSTEM.
RU2391714C2 (en) 2004-07-14 2010-06-10 Конинклейке Филипс Электроникс Н.В. Audio channel conversion
US7760886B2 (en) 2005-12-20 2010-07-20 Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forscheng e.V. Apparatus and method for synthesizing three output channels using two input channels

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2006583B (en) * 1977-10-14 1982-04-28 Dolby Lab Licensing Corp Multi-channel sound systems
US4577305A (en) * 1983-03-14 1986-03-18 Dolby Laboratories Licensing Corporation Stereophonic motion picture photographic sound-tracks compatible with different sound projection formats and record and playback apparatus therefore
US4941177A (en) * 1985-03-07 1990-07-10 Dolby Laboratories Licensing Corporation Variable matrix decoder
DE4409368A1 (en) * 1994-03-18 1995-09-21 Fraunhofer Ges Forschung Method for encoding multiple audio signals

Also Published As

Publication number Publication date
WO2000004744A1 (en) 2000-01-27

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Legal Events

Date Code Title Description
MK13 Application withdrawn section 141(2)/reg 8.3(2) - pct appl. non-entering nat. phase, withdrawn by applicant