FI873406A0 - Foerfarande och krets foer dekodning av fyrkanalssignaler som aer kodade i en matris och foereligger i form av en tvaokanalssignal. - Google Patents

Foerfarande och krets foer dekodning av fyrkanalssignaler som aer kodade i en matris och foereligger i form av en tvaokanalssignal.

Info

Publication number
FI873406A0
FI873406A0 FI873406A FI873406A FI873406A0 FI 873406 A0 FI873406 A0 FI 873406A0 FI 873406 A FI873406 A FI 873406A FI 873406 A FI873406 A FI 873406A FI 873406 A0 FI873406 A0 FI 873406A0
Authority
FI
Finland
Prior art keywords
delta
och
pct
circuit
channels
Prior art date
Application number
FI873406A
Other languages
English (en)
Other versions
FI873406A (fi
Inventor
Ole Sparkjaer
Original Assignee
Ole Sparkjaer
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 Ole Sparkjaer filed Critical Ole Sparkjaer
Publication of FI873406A publication Critical patent/FI873406A/fi
Publication of FI873406A0 publication Critical patent/FI873406A0/fi

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Mathematical Optimization (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Stereophonic System (AREA)
  • Laminated Bodies (AREA)
  • Television Systems (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Dc Digital Transmission (AREA)
  • Error Detection And Correction (AREA)
  • Analogue/Digital Conversion (AREA)
FI873406A 1985-12-06 1987-08-05 Foerfarande och krets foer dekodning av fyrkanalssignaler som aer kodade i en matris och foereligger i form av en tvaokanalssignal. FI873406A0 (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK567485A DK152478C (da) 1985-12-06 1985-12-06 Fremgangsmaade og kredsloeb til dekodning af fire kanalsignaler, som er matrixkodet og foreligger i form af et to-kanal signal
PCT/DK1986/000131 WO1987003771A1 (en) 1985-12-06 1986-12-04 A method and a circuit for decoding four-channel signals which are coded in a matrix and available in the form of a two-channel signal

Publications (2)

Publication Number Publication Date
FI873406A FI873406A (fi) 1987-08-05
FI873406A0 true FI873406A0 (fi) 1987-08-05

Family

ID=8144388

Family Applications (1)

Application Number Title Priority Date Filing Date
FI873406A FI873406A0 (fi) 1985-12-06 1987-08-05 Foerfarande och krets foer dekodning av fyrkanalssignaler som aer kodade i en matris och foereligger i form av en tvaokanalssignal.

Country Status (11)

Country Link
US (1) US4850021A (fi)
EP (1) EP0252102B1 (fi)
AT (1) ATE73980T1 (fi)
AU (1) AU6737687A (fi)
DE (1) DE3684470D1 (fi)
DK (1) DK152478C (fi)
FI (1) FI873406A0 (fi)
NO (1) NO873288L (fi)
NZ (1) NZ218535A (fi)
WO (1) WO1987003771A1 (fi)
ZA (1) ZA869206B (fi)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE68921899T2 (de) * 1988-01-06 1995-09-21 Lucasarts Entertainment Co Räumliches Schallwiedergabesystem.
CA1301074C (en) * 1988-11-21 1992-05-19 Timothy Holl Video sound
JP4478220B2 (ja) 1997-05-29 2010-06-09 ソニー株式会社 音場補正回路
JP3324525B2 (ja) * 1998-10-01 2002-09-17 株式会社村田製作所 ３ｄウーハ駆動回路
CN115116459B (zh) * 2021-03-22 2024-10-01 炬芯科技股份有限公司 差分环绕音频信号生成方法、装置、存储介质及电子设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5147321B1 (fi) * 1971-06-21 1976-12-14
JPS5251764Y2 (fi) * 1972-10-13 1977-11-25
GB1522135A (en) * 1974-08-29 1978-08-23 Dolby Laboratories Inc Stereophonic sound system
GB1522599A (en) * 1974-11-16 1978-08-23 Dolby Laboratories Inc Centre channel derivation for stereophonic cinema sound
GB2006583B (en) * 1977-10-14 1982-04-28 Dolby Lab Licensing Corp Multi-channel sound systems
US4612663A (en) * 1984-03-26 1986-09-16 Holbrook Kyle A Multichannel audio reproduction system

Also Published As

Publication number Publication date
NO873288D0 (no) 1987-08-06
NO873288L (no) 1987-08-06
EP0252102B1 (en) 1992-03-18
AU6737687A (en) 1987-06-30
ATE73980T1 (de) 1992-04-15
DK567485D0 (da) 1985-12-06
DK152478C (da) 1988-07-25
DE3684470D1 (de) 1992-04-23
WO1987003771A1 (en) 1987-06-18
US4850021A (en) 1989-07-18
NZ218535A (en) 1989-04-26
FI873406A (fi) 1987-08-05
ZA869206B (en) 1987-10-28
DK152478B (da) 1988-02-29
EP0252102A1 (en) 1988-01-13
DK567485A (da) 1986-10-09

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Legal Events

Date Code Title Description
FD Application lapsed

Owner name: SPARKJAER, OLE