FR2176634A1 - - Google Patents

Info

Publication number
FR2176634A1
FR2176634A1 FR7211691A FR7211691A FR2176634A1 FR 2176634 A1 FR2176634 A1 FR 2176634A1 FR 7211691 A FR7211691 A FR 7211691A FR 7211691 A FR7211691 A FR 7211691A FR 2176634 A1 FR2176634 A1 FR 2176634A1
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
FR7211691A
Other languages
French (fr)
Other versions
FR2176634B3 (it
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.)
PENNA MARIUS FR
Original Assignee
PENNA MARIUS FR
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 PENNA MARIUS FR filed Critical PENNA MARIUS FR
Priority to FR7211691A priority Critical patent/FR2176634B3/fr
Priority to DE19732314634 priority patent/DE2314634A1/de
Publication of FR2176634A1 publication Critical patent/FR2176634A1/fr
Application granted granted Critical
Publication of FR2176634B3 publication Critical patent/FR2176634B3/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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)
FR7211691A 1972-03-24 1972-03-24 Expired FR2176634B3 (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7211691A FR2176634B3 (it) 1972-03-24 1972-03-24
DE19732314634 DE2314634A1 (de) 1972-03-24 1973-03-23 Mehrkanal-stereo-lautsprecheranlage mit paarweise angeordneten lautsprechergruppen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7211691A FR2176634B3 (it) 1972-03-24 1972-03-24

Publications (2)

Publication Number Publication Date
FR2176634A1 true FR2176634A1 (it) 1973-11-02
FR2176634B3 FR2176634B3 (it) 1975-06-20

Family

ID=9096264

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7211691A Expired FR2176634B3 (it) 1972-03-24 1972-03-24

Country Status (2)

Country Link
DE (1) DE2314634A1 (it)
FR (1) FR2176634B3 (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5742691A (en) * 1997-02-21 1998-04-21 Ambourn; Paul R. Surround sound converter

Also Published As

Publication number Publication date
DE2314634A1 (de) 1973-10-04
FR2176634B3 (it) 1975-06-20

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Legal Events

Date Code Title Description
ST Notification of lapse