FR2090293A1 - - Google Patents

Info

Publication number
FR2090293A1
FR2090293A1 FR7118904A FR7118904A FR2090293A1 FR 2090293 A1 FR2090293 A1 FR 2090293A1 FR 7118904 A FR7118904 A FR 7118904A FR 7118904 A FR7118904 A FR 7118904A FR 2090293 A1 FR2090293 A1 FR 2090293A1
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.)
Granted
Application number
FR7118904A
Other languages
French (fr)
Other versions
FR2090293B1 (cs
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 FR2090293A1 publication Critical patent/FR2090293A1/fr
Application granted granted Critical
Publication of FR2090293B1 publication Critical patent/FR2090293B1/fr
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)
FR7118904A 1970-05-26 1971-05-25 Expired FR2090293B1 (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4051070A 1970-05-26 1970-05-26

Publications (2)

Publication Number Publication Date
FR2090293A1 true FR2090293A1 (cs) 1972-01-14
FR2090293B1 FR2090293B1 (cs) 1976-12-03

Family

ID=21911362

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7118904A Expired FR2090293B1 (cs) 1970-05-26 1971-05-25

Country Status (4)

Country Link
BE (1) BE767694A (cs)
DE (1) DE2125952A1 (cs)
FR (1) FR2090293B1 (cs)
NL (1) NL7105742A (cs)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE22C (de) * 1877-07-05 O. SANDER zu Beuel bei Bonn Verfahren, Gewebe wasserdicht zu machen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE22C (de) * 1877-07-05 O. SANDER zu Beuel bei Bonn Verfahren, Gewebe wasserdicht zu machen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
REVUE US "AUDIO" VOLUME 53, NO 3, MARS 1969, PAGES 21-24 ARTICLE "FIVE-CHANNEL STEREO AT HOME" DE BAENNINGER PAGE 22, COLONNE DE GAUCHE, LIGNES 5-12 PAGE 23, COLONNE DU MILIEU, LIGNES 3 A 37 FIGURE 7 APPAREIL DE REPRODUCTION DE SIGNAUX STEREOPHONIQUES COMPRENANT CINQ HAUT-PARLEURS ET DEUX TRANSFORMATEURS *

Also Published As

Publication number Publication date
BE767694A (fr) 1971-11-26
FR2090293B1 (cs) 1976-12-03
NL7105742A (cs) 1971-11-30
DE2125952A1 (de) 1971-12-02

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Legal Events

Date Code Title Description
ST Notification of lapse