DE2230842B2 - - Google Patents

Info

Publication number
DE2230842B2
DE2230842B2 DE2230842A DE2230842A DE2230842B2 DE 2230842 B2 DE2230842 B2 DE 2230842B2 DE 2230842 A DE2230842 A DE 2230842A DE 2230842 A DE2230842 A DE 2230842A DE 2230842 B2 DE2230842 B2 DE 2230842B2
Authority
DE
Germany
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.)
Granted
Application number
DE2230842A
Other languages
German (de)
Other versions
DE2230842C3 (de
DE2230842A1 (de
Inventor
Benjamin B. Stamford Conn. Bauer (V.St.A.)
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.)
C B S Inc New York Ny (vsta)
Original Assignee
C B S Inc New York Ny (vsta)
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 C B S Inc New York Ny (vsta) filed Critical C B S Inc New York Ny (vsta)
Publication of DE2230842A1 publication Critical patent/DE2230842A1/de
Publication of DE2230842B2 publication Critical patent/DE2230842B2/de
Application granted granted Critical
Publication of DE2230842C3 publication Critical patent/DE2230842C3/de
Expired 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)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
DE2230842A 1971-06-23 1972-06-23 Decodiermatrix für zwei quadrophone Signalgemische Expired DE2230842C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15597671A 1971-06-23 1971-06-23

Publications (3)

Publication Number Publication Date
DE2230842A1 DE2230842A1 (de) 1972-12-28
DE2230842B2 true DE2230842B2 (fr) 1980-02-21
DE2230842C3 DE2230842C3 (de) 1980-10-16

Family

ID=22557545

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2230842A Expired DE2230842C3 (de) 1971-06-23 1972-06-23 Decodiermatrix für zwei quadrophone Signalgemische

Country Status (10)

Country Link
US (1) US3798373A (fr)
JP (1) JPS5110963B1 (fr)
AU (1) AU464001B2 (fr)
BE (1) BE785279A (fr)
CA (1) CA973806A (fr)
DE (1) DE2230842C3 (fr)
FR (1) FR2143325B1 (fr)
GB (1) GB1396352A (fr)
IT (1) IT958512B (fr)
NL (1) NL7208607A (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1398786A (en) * 1971-08-06 1975-06-25 Sony Corp Multisignal transmission apparatus
DE2252132C3 (de) 1972-10-24 1982-08-26 Sansui Electric Co., Ltd., Tokyo Decodierer für ein 4-2-4-Matrixsystem
JPS5527517B2 (fr) * 1972-12-01 1980-07-21
JPS5320343B2 (fr) * 1973-03-29 1978-06-26
GB1514162A (en) * 1974-03-25 1978-06-14 Ruggles W Directional enhancement system for quadraphonic decoders
US3937885A (en) * 1974-09-06 1976-02-10 Motorola, Inc. Control circuit for a matrixed four channel audio reproducing system
JPS5453831U (fr) * 1977-09-22 1979-04-13
JPS54137248U (fr) * 1978-03-17 1979-09-22
US4799260A (en) * 1985-03-07 1989-01-17 Dolby Laboratories Licensing Corporation Variable matrix decoder
US5046098A (en) * 1985-03-07 1991-09-03 Dolby Laboratories Licensing Corporation Variable matrix decoder with three output channels
US4862502A (en) * 1988-01-06 1989-08-29 Lexicon, Inc. Sound reproduction
US5136650A (en) * 1991-01-09 1992-08-04 Lexicon, Inc. Sound reproduction
US5796844A (en) * 1996-07-19 1998-08-18 Lexicon Multichannel active matrix sound reproduction with maximum lateral separation
US5870480A (en) * 1996-07-19 1999-02-09 Lexicon Multichannel active matrix encoder and decoder with maximum lateral separation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3632886A (en) * 1969-12-29 1972-01-04 Peter Scheiber Quadrasonic sound system
US3646574A (en) * 1970-05-25 1972-02-29 Howard S Holzer Compatible stereo generator
US3684835A (en) * 1970-07-29 1972-08-15 Parasound Inc Four channel stereo synthesizer

Also Published As

Publication number Publication date
NL7208607A (fr) 1972-12-28
CA973806A (en) 1975-09-02
AU4377572A (en) 1974-01-03
DE2230842C3 (de) 1980-10-16
GB1396352A (en) 1975-06-04
IT958512B (it) 1973-10-30
JPS5110963B1 (fr) 1976-04-08
DE2230842A1 (de) 1972-12-28
BE785279A (fr) 1972-10-16
AU464001B2 (en) 1975-08-14
FR2143325B1 (fr) 1979-04-06
US3798373A (en) 1974-03-19
FR2143325A1 (fr) 1973-02-02

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Legal Events

Date Code Title Description
OI Miscellaneous see part 1
OI Miscellaneous see part 1
C3 Grant after two publication steps (3rd publication)
8340 Patent of addition ceased/non-payment of fee of main patent