BE778296A - Matrices perfectionnees de codage et de decodage pour enregistrements quadriphoniques - Google Patents

Matrices perfectionnees de codage et de decodage pour enregistrements quadriphoniques

Info

Publication number
BE778296A
BE778296A BE778296A BE778296A BE778296A BE 778296 A BE778296 A BE 778296A BE 778296 A BE778296 A BE 778296A BE 778296 A BE778296 A BE 778296A BE 778296 A BE778296 A BE 778296A
Authority
BE
Belgium
Prior art keywords
quadriphone
recordings
advanced encoding
decoding matrices
matrices
Prior art date
Application number
BE778296A
Other languages
English (en)
Inventor
B B Bauer
Original Assignee
Columbia Broadcasting Syst Inc
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 Columbia Broadcasting Syst Inc filed Critical Columbia Broadcasting Syst Inc
Publication of BE778296A publication Critical patent/BE778296A/fr

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)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Algebra (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Fuel Cell (AREA)
BE778296A 1971-02-03 1972-01-20 Matrices perfectionnees de codage et de decodage pour enregistrements quadriphoniques BE778296A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11216871A 1971-02-03 1971-02-03

Publications (1)

Publication Number Publication Date
BE778296A true BE778296A (fr) 1972-07-20

Family

ID=22342450

Family Applications (1)

Application Number Title Priority Date Filing Date
BE778296A BE778296A (fr) 1971-02-03 1972-01-20 Matrices perfectionnees de codage et de decodage pour enregistrements quadriphoniques

Country Status (10)

Country Link
US (1) US3745252A (fr)
JP (2) JPS5110961B1 (fr)
BE (1) BE778296A (fr)
CA (1) CA974887A (fr)
DE (1) DE2204098C3 (fr)
FR (1) FR2124264A1 (fr)
GB (2) GB1385651A (fr)
IL (1) IL38277A (fr)
IT (1) IT948353B (fr)
NL (1) NL7200834A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911222A (en) * 1970-12-09 1975-10-07 Kenwood Corp Method and a device for producing a 4-channel stereophonic sound field
US3787622A (en) * 1971-02-05 1974-01-22 Sansui Electric Co Quadrasonic sound system for two channel transmission
USRE29171E (en) * 1971-07-02 1977-04-05 Sansui Electric Co., Ltd. Multi-directional sound system
US3906156A (en) 1971-10-06 1975-09-16 Duane H Cooper Signal matrixing for directional reproduction of sound
JPS4889702A (fr) * 1972-02-25 1973-11-22
JPS5210364B2 (fr) * 1972-05-02 1977-03-23
GB1416631A (en) * 1972-05-30 1975-12-03 Nippon Columbia Discrete 4-channel stereo recording and/or reproducing system
JPS5332643B2 (fr) * 1972-06-06 1978-09-09
JPS5246681B2 (fr) * 1972-12-29 1977-11-26
JPS5248002B2 (fr) * 1973-09-18 1977-12-07
EP1715538A1 (fr) * 2005-04-19 2006-10-25 Nicholas M. Abson Nouveaux materiaux pour les piles à combustible alcalines
EP1724861A1 (fr) * 2005-05-17 2006-11-22 Nicholas M. Abson Nouveaux matériaux pour les électrolyseurs alcalins et les piles à combustible alcalines

Family Cites Families (1)

* 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

Also Published As

Publication number Publication date
IL38277A0 (en) 1972-02-29
US3745252A (en) 1973-07-10
NL7200834A (fr) 1972-08-07
FR2124264A1 (fr) 1972-09-22
IT948353B (it) 1973-05-30
JPS50152701A (fr) 1975-12-09
DE2204098C3 (de) 1978-09-21
JPS5140442B2 (fr) 1976-11-04
DE2204098A1 (de) 1972-08-17
GB1379846A (en) 1975-01-08
GB1385651A (en) 1975-02-26
IL38277A (en) 1974-05-16
JPS5110961B1 (fr) 1976-04-08
DE2204098B2 (de) 1978-02-09
CA974887A (en) 1975-09-23

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