FR2094123A1 - - Google Patents

Info

Publication number
FR2094123A1
FR2094123A1 FR7120765A FR7120765A FR2094123A1 FR 2094123 A1 FR2094123 A1 FR 2094123A1 FR 7120765 A FR7120765 A FR 7120765A FR 7120765 A FR7120765 A FR 7120765A FR 2094123 A1 FR2094123 A1 FR 2094123A1
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
FR7120765A
Other languages
French (fr)
Other versions
FR2094123B1 (enExample
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 FR2094123A1 publication Critical patent/FR2094123A1/fr
Application granted granted Critical
Publication of FR2094123B1 publication Critical patent/FR2094123B1/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)
  • Stereo-Broadcasting Methods (AREA)
FR7120765A 1970-06-08 1971-06-08 Expired FR2094123B1 (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4422470A 1970-06-08 1970-06-08

Publications (2)

Publication Number Publication Date
FR2094123A1 true FR2094123A1 (enExample) 1972-02-04
FR2094123B1 FR2094123B1 (enExample) 1976-05-28

Family

ID=21931168

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7120765A Expired FR2094123B1 (enExample) 1970-06-08 1971-06-08

Country Status (6)

Country Link
JP (4) JPS5017844B1 (enExample)
BE (1) BE768242A (enExample)
CA (1) CA989743A (enExample)
FR (1) FR2094123B1 (enExample)
GB (1) GB1347993A (enExample)
NL (1) NL161645C (enExample)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI3A (fi) * 1843-11-08 Pressjäst

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI3A (fi) * 1843-11-08 Pressjäst

Non-Patent Citations (14)

* Cited by examiner, † Cited by third party
Title
(REVUE US"JOURNAL OF THE AUDIO ENGINEERING SOCIETY"VOL.19,NO.4,AVRIL 1971,PAGES 267-279. *
(SYSTEM"DE HAFLER.PAGE 26,COLONNE DU MILIEU,LIGNES 21-37 *
278,COLONNE DE GAUCHE,LIGNE 20 *
ALINEA A PAGE 275,COLONNE DE GAUCHE,LIGNE 31 *
ARTICLE"FOUR CHANNELS AND COMPATABILITY",DE SCHEIBER.PAGE 274,COLONNE DE GAUCHE,DERNIER *
DE SIGNAUX QUADRAPHONIQUES,COMPORTAN *
DE(SIGNAUX QUADRAPHONIQUES,COMPORTANT UN RESEAU RESISTIF,DEUX AMPLIFICATEURS ET QUATRE HAUT-PARLEURS.) *
FIGURE 1,6,7,9.DISPOSITIF DE CODAGE ET DE DECODAGE POUR *
PAGE 276,COLONNE DE DROITE,DERNIER ALINEA A PAGE *
RE54,NO.7,JUILLET 1970,PAGE 24,26,56 ET 57.ARTICLE:"A NEW QUADRAPHONIE(VUE US"AUDIO",VOL.) *
RE54,NO.7,JUILLET 1970,PAGE 24,26,56 ET 57.ARTICLE:"A NEW QUADRAPHONIESYSTEM"DE HAFLER.PAGE 26,COLONNE DU MILIEU,LIGNES 21-37 *
REPRODUCTION *
REPRODUCTION(VUE US"AUDIO",VOL.) *
SYSTEME DE QUADRAPHONIE UTILISANT DES CIRCUITS DEPHASEURS ET UN DISPOSITIF DE REGLAGE DE GAINE.) *

Also Published As

Publication number Publication date
NL161645B (nl) 1979-09-17
GB1347993A (en) 1974-02-27
JPS5017844B1 (enExample) 1975-06-24
NL161645C (nl) 1980-02-15
DE2126432A1 (de) 1972-03-02
BE768242A (fr) 1971-12-08
JPS50132902A (enExample) 1975-10-21
JPS5135841B2 (enExample) 1976-10-05
JPS50132904A (enExample) 1975-10-21
NL7106548A (enExample) 1971-12-10
JPS5111481B2 (enExample) 1976-04-12
DE2126432B2 (de) 1976-02-19
FR2094123B1 (enExample) 1976-05-28
JPS50132903A (enExample) 1975-10-21
CA989743A (en) 1976-05-25

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Legal Events

Date Code Title Description
ST Notification of lapse