FR2124264A1 - - Google Patents

Info

Publication number
FR2124264A1
FR2124264A1 FR7202454A FR7202454A FR2124264A1 FR 2124264 A1 FR2124264 A1 FR 2124264A1 FR 7202454 A FR7202454 A FR 7202454A FR 7202454 A FR7202454 A FR 7202454A FR 2124264 A1 FR2124264 A1 FR 2124264A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7202454A
Other languages
French (fr)
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.)
COLUMBIA BROADCASTING
Original Assignee
COLUMBIA BROADCASTING
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 filed Critical COLUMBIA BROADCASTING
Publication of FR2124264A1 publication Critical patent/FR2124264A1/fr
Withdrawn legal-status Critical Current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)
  • Fuel Cell (AREA)
FR7202454A 1971-02-03 1972-01-25 Withdrawn FR2124264A1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR2124264A1 true FR2124264A1 (de) 1972-09-22

Family

ID=22342450

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7202454A Withdrawn FR2124264A1 (de) 1971-02-03 1972-01-25

Country Status (10)

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

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 (de) * 1972-02-25 1973-11-22
JPS5210364B2 (de) * 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 (de) * 1972-06-06 1978-09-09
JPS5246681B2 (de) * 1972-12-29 1977-11-26
JPS5248002B2 (de) * 1973-09-18 1977-12-07
EP1715538A1 (de) * 2005-04-19 2006-10-25 Nicholas M. Abson Neue Materialien für alkalische Brennstoffzellen
EP1724861A1 (de) * 2005-05-17 2006-11-22 Nicholas M. Abson Neue Materialien für alkalische Elektrolyseure und alkalische Brennstoffzellen

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
JPS50152701A (de) 1975-12-09
DE2204098C3 (de) 1978-09-21
JPS5140442B2 (de) 1976-11-04
BE778296A (fr) 1972-07-20
DE2204098B2 (de) 1978-02-09
DE2204098A1 (de) 1972-08-17
GB1385651A (en) 1975-02-26
US3745252A (en) 1973-07-10
CA974887A (en) 1975-09-23
GB1379846A (en) 1975-01-08
JPS5110961B1 (de) 1976-04-08
IL38277A (en) 1974-05-16
IL38277A0 (en) 1972-02-29
IT948353B (it) 1973-05-30
NL7200834A (de) 1972-08-07

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Legal Events

Date Code Title Description
ST Notification of lapse