FR715367A - Improvements in sound production, reproduction and transformation devices - Google Patents

Improvements in sound production, reproduction and transformation devices

Info

Publication number
FR715367A
FR715367A FR715367DA FR715367A FR 715367 A FR715367 A FR 715367A FR 715367D A FR715367D A FR 715367DA FR 715367 A FR715367 A FR 715367A
Authority
FR
France
Prior art keywords
reproduction
sound production
transformation devices
transformation
devices
Prior art date
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
Other languages
French (fr)
Inventor
Francois-Xavier-Loui
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 filed Critical
Application granted granted Critical
Publication of FR715367A publication Critical patent/FR715367A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/24—Tensioning by means acting directly on free portions of diaphragm or cone

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR715367D 1930-08-11 1930-08-11 Improvements in sound production, reproduction and transformation devices Expired FR715367A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR715367T 1930-08-11

Publications (1)

Publication Number Publication Date
FR715367A true FR715367A (en) 1931-12-02

Family

ID=9088890

Family Applications (1)

Application Number Title Priority Date Filing Date
FR715367D Expired FR715367A (en) 1930-08-11 1930-08-11 Improvements in sound production, reproduction and transformation devices

Country Status (1)

Country Link
FR (1) FR715367A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0330423A2 (en) * 1988-02-26 1989-08-30 Yasuhiro Shinjo Loudspeaker diaphragm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0330423A2 (en) * 1988-02-26 1989-08-30 Yasuhiro Shinjo Loudspeaker diaphragm
EP0330423A3 (en) * 1988-02-26 1991-01-16 Yasuhiro Shinjo Loudspeaker diaphragm

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