DK152478C - Fremgangsmaade og kredsloeb til dekodning af fire kanalsignaler, som er matrixkodet og foreligger i form af et to-kanal signal - Google Patents

Fremgangsmaade og kredsloeb til dekodning af fire kanalsignaler, som er matrixkodet og foreligger i form af et to-kanal signal

Info

Publication number
DK152478C
DK152478C DK567485A DK567485A DK152478C DK 152478 C DK152478 C DK 152478C DK 567485 A DK567485 A DK 567485A DK 567485 A DK567485 A DK 567485A DK 152478 C DK152478 C DK 152478C
Authority
DK
Denmark
Prior art keywords
circuit
delta
pct
channel
channels
Prior art date
Application number
DK567485A
Other languages
English (en)
Other versions
DK567485A (da
DK152478B (da
DK567485D0 (da
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
Priority to DK567485A priority Critical patent/DK152478C/da
Publication of DK567485D0 publication Critical patent/DK567485D0/da
Publication of DK567485A publication Critical patent/DK567485A/da
Priority to PCT/DK1986/000131 priority patent/WO1987003771A1/en
Priority to EP87900074A priority patent/EP0252102B1/en
Priority to DE8787900074T priority patent/DE3684470D1/de
Priority to US07/090,978 priority patent/US4850021A/en
Priority to AT87900074T priority patent/ATE73980T1/de
Priority to AU67376/87A priority patent/AU6737687A/en
Priority to NZ218535A priority patent/NZ218535A/xx
Priority to ZA869206A priority patent/ZA869206B/xx
Priority to FI873406A priority patent/FI873406A0/fi
Priority to NO873288A priority patent/NO873288D0/no
Publication of DK152478B publication Critical patent/DK152478B/da
Application granted granted Critical
Publication of DK152478C publication Critical patent/DK152478C/da

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)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Algebra (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Stereophonic System (AREA)
  • Laminated Bodies (AREA)
  • Television Systems (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Analogue/Digital Conversion (AREA)
  • Error Detection And Correction (AREA)
  • Dc Digital Transmission (AREA)
DK567485A 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 DK152478C (da)

Priority Applications (11)

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
AU67376/87A AU6737687A (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
AT87900074T ATE73980T1 (de) 1985-12-06 1986-12-04 Verfahren und schaltung zur dekodierung von in form eines zweikanalsignals vorliegenden vierkanalsignalen.
EP87900074A EP0252102B1 (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
DE8787900074T DE3684470D1 (de) 1985-12-06 1986-12-04 Verfahren und schaltung zur dekodierung von in form eines zweikanalsignals vorliegenden vierkanalsignalen.
US07/090,978 US4850021A (en) 1985-12-06 1986-12-04 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
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
NZ218535A NZ218535A (en) 1985-12-06 1986-12-05 Circuit for providing four channel signals from stereo signals
ZA869206A ZA869206B (en) 1985-12-06 1986-12-05 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
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.
NO873288A NO873288D0 (no) 1985-12-06 1987-08-06 Fremgangsmaate og stroemkrets for dekoding av fire kanalsignaler som er matrisekodet og foreligger i form av et tokanalssignal.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK567485 1985-12-06
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

Publications (4)

Publication Number Publication Date
DK567485D0 DK567485D0 (da) 1985-12-06
DK567485A DK567485A (da) 1986-10-09
DK152478B DK152478B (da) 1988-02-29
DK152478C true DK152478C (da) 1988-07-25

Family

ID=8144388

Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (11)

Country Link
US (1) US4850021A (da)
EP (1) EP0252102B1 (da)
AT (1) ATE73980T1 (da)
AU (1) AU6737687A (da)
DE (1) DE3684470D1 (da)
DK (1) DK152478C (da)
FI (1) FI873406A0 (da)
NO (1) NO873288D0 (da)
NZ (1) NZ218535A (da)
WO (1) WO1987003771A1 (da)
ZA (1) ZA869206B (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0323830B1 (en) * 1988-01-06 1995-03-29 LucasArts Entertainment Company Surround-sound system
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

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5147321B1 (da) * 1971-06-21 1976-12-14
JPS5251764Y2 (da) * 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
DK567485A (da) 1986-10-09
DK152478B (da) 1988-02-29
NO873288L (no) 1987-08-06
ZA869206B (en) 1987-10-28
FI873406A (fi) 1987-08-05
US4850021A (en) 1989-07-18
AU6737687A (en) 1987-06-30
DE3684470D1 (de) 1992-04-23
DK567485D0 (da) 1985-12-06
WO1987003771A1 (en) 1987-06-18
EP0252102A1 (en) 1988-01-13
FI873406A0 (fi) 1987-08-05
NZ218535A (en) 1989-04-26
EP0252102B1 (en) 1992-03-18
NO873288D0 (no) 1987-08-06
ATE73980T1 (de) 1992-04-15

Similar Documents

Publication Publication Date Title
DK151714C (da) Fremgangsmaade og indretning til styring af tappeelementer i tappemaskiner.
DK156904C (da) Akustikplade og fremgangsmaade til fremstilling af samme
DK177587A (da) Fremgangsmaade til fremstilling af vitaminpraeparater
DK97283A (da) Fremgangsmaade til fremstilling af derivater af 1,2,4-triaziner og -pyridiner
DE3682210D1 (de) Uebertragungssystem.
DK526783A (da) Forbedret stamme af clostridium acetobutylicum og fremgangsmaade til fremstilling af samme
DK152849C (da) Koerbar sporunderstopningsmaskine, isaer maskine til samtidig nivellering og opretning af sporlegemers skinner.
DK152478C (da) Fremgangsmaade og kredsloeb til dekodning af fire kanalsignaler, som er matrixkodet og foreligger i form af et to-kanal signal
ATE254383T1 (de) Verfahren und vorrichtung zur mehrkanaligen tonwiedergabe
SE8000633L (sv) Aterkopplad effektforsterkarkoppling
SE7712534L (sv) Brusdetektor
DK308788D0 (da) Fremgangsmaade til behandling af en aluminosilicatzeolit
DK135401B (da) Vækstmediumenhed og fremgangsmåde til fremstilling af samme.
DK391488D0 (da) Fremgangsmaade og kredsloeb til automatisk indstilling af reguleringsforstaerkningen i en reguleringskreds
DK282881A (da) Kredsloeb til undertrykkelse af mellemfrekvensmodulationseffekter i kompressorer expandere og stoejreduktionssystemer
DK205188D0 (da) Proteinprotease-inhibitorer af streptomyces
DK221881A (da) Fremgangsmaade og apparat til sammenfoejning af traebraedder med pladeprofiler
ATA256583A (de) Mehrkanal-tonuebertragungssystem in frequenzmulti- plexbetrieb unter verwendung von intensitaets- infrarotstrahlung, insbesondere zur ermoeglichung der wiedergabe von tonaufzeichungen auf filmkopien ausser der originalsprache in gleichzeitig mehreren anderen sprachfassungen
DK542984D0 (da) Fremgangsmaade og braender til forbraending af et fast, partikelformetbraendsel
JPS5799068A (en) Pulse transmission system
SE8105931L (sv) Behallare for behandling av virke
DK330983D0 (da) Fremgangsmade og apparat til oprulning af flade dejstykker, f. eks. til roulader
SE8402661L (sv) Anordning for sonderdelning av tre till brennved
DK619687A (da) Vaekstmedium og fremgangsmaade til fremstilling af vaekstmedium
SE8402943L (sv) Akustikelement