FR2109754A5 - - Google Patents

Info

Publication number
FR2109754A5
FR2109754A5 FR7132479A FR7132479A FR2109754A5 FR 2109754 A5 FR2109754 A5 FR 2109754A5 FR 7132479 A FR7132479 A FR 7132479A FR 7132479 A FR7132479 A FR 7132479A FR 2109754 A5 FR2109754 A5 FR 2109754A5
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.)
Expired
Application number
FR7132479A
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
Application granted granted Critical
Publication of FR2109754A5 publication Critical patent/FR2109754A5/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)
FR7132479A 1970-10-19 1971-09-08 Expired FR2109754A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8185870A 1970-10-19 1970-10-19

Publications (1)

Publication Number Publication Date
FR2109754A5 true FR2109754A5 (fr) 1972-05-26

Family

ID=22166858

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7132479A Expired FR2109754A5 (fr) 1970-10-19 1971-09-08

Country Status (6)

Country Link
BE (1) BE772298A (fr)
CA (1) CA974457A (fr)
FR (1) FR2109754A5 (fr)
GB (1) GB1360411A (fr)
IL (1) IL37872A (fr)
NL (1) NL7108370A (fr)

Also Published As

Publication number Publication date
DE2139098B2 (de) 1976-11-25
GB1360411A (en) 1974-07-17
CA974457A (en) 1975-09-16
IL37872A0 (en) 1971-12-29
NL7108370A (fr) 1972-04-21
IL37872A (en) 1973-11-28
DE2139098A1 (de) 1972-04-20
BE772298A (fr) 1972-03-17
AU3214771A (en) 1973-02-15

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Legal Events

Date Code Title Description
ST Notification of lapse