IL38277A0 - Improved matrixes and decoders for quadruphonic records - Google Patents

Improved matrixes and decoders for quadruphonic records

Info

Publication number
IL38277A0
IL38277A0 IL38277A IL3827771A IL38277A0 IL 38277 A0 IL38277 A0 IL 38277A0 IL 38277 A IL38277 A IL 38277A IL 3827771 A IL3827771 A IL 3827771A IL 38277 A0 IL38277 A0 IL 38277A0
Authority
IL
Israel
Prior art keywords
quadruphonic
matrixes
decoders
records
improved
Prior art date
Application number
IL38277A
Other versions
IL38277A (en
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 IL38277A0 publication Critical patent/IL38277A0/en
Publication of IL38277A publication Critical patent/IL38277A/en

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)
  • Fuel Cell (AREA)
IL38277A 1971-02-03 1971-12-01 Matrixes and decoders for quadruphonic recordings IL38277A (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
IL38277A0 true IL38277A0 (en) 1972-02-29
IL38277A IL38277A (en) 1974-05-16

Family

ID=22342450

Family Applications (1)

Application Number Title Priority Date Filing Date
IL38277A IL38277A (en) 1971-02-03 1971-12-01 Matrixes and decoders for quadruphonic recordings

Country Status (10)

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

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 (en) * 1972-02-25 1973-11-22
JPS5210364B2 (en) * 1972-05-02 1977-03-23
CA997278A (en) * 1972-05-30 1976-09-21 Keiichiro Ogura Discrete 4-channel stereo recording and/or reproducing system
JPS5332643B2 (en) * 1972-06-06 1978-09-09
JPS5246681B2 (en) * 1972-12-29 1977-11-26
JPS5248002B2 (en) * 1973-09-18 1977-12-07
EP1715538A1 (en) * 2005-04-19 2006-10-25 Nicholas M. Abson Novel materials for alkaline fuel cells
EP1724861A1 (en) * 2005-05-17 2006-11-22 Nicholas M. Abson Novel materials for alkaline electrolysers and alkaline fuel cells

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
DE2204098A1 (en) 1972-08-17
IT948353B (en) 1973-05-30
IL38277A (en) 1974-05-16
JPS5110961B1 (en) 1976-04-08
BE778296A (en) 1972-07-20
CA974887A (en) 1975-09-23
GB1385651A (en) 1975-02-26
DE2204098B2 (en) 1978-02-09
DE2204098C3 (en) 1978-09-21
GB1379846A (en) 1975-01-08
FR2124264A1 (en) 1972-09-22
NL7200834A (en) 1972-08-07
US3745252A (en) 1973-07-10
JPS50152701A (en) 1975-12-09
JPS5140442B2 (en) 1976-11-04

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