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FR673659A - Sound reproducer - Google Patents

Sound reproducer

Info

Publication number
FR673659A
FR673659A FR673659DA FR673659A FR 673659 A FR673659 A FR 673659A FR 673659D A FR673659D A FR 673659DA FR 673659 A FR673659 A FR 673659A
Authority
FR
France
Prior art keywords
sound reproducer
reproducer
sound
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
Alexandre Renard
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 FR673659A publication Critical patent/FR673659A/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
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR673659D 1928-08-13 1928-08-13 Sound reproducer Expired FR673659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR673659T 1928-08-13

Publications (1)

Publication Number Publication Date
FR673659A true FR673659A (en) 1930-01-17

Family

ID=9018261

Family Applications (1)

Application Number Title Priority Date Filing Date
FR673659D Expired FR673659A (en) 1928-08-13 1928-08-13 Sound reproducer

Country Status (1)

Country Link
FR (1) FR673659A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072991A2 (en) * 1981-08-28 1983-03-02 Hitachi, Ltd. Speaker system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072991A2 (en) * 1981-08-28 1983-03-02 Hitachi, Ltd. Speaker system
EP0072991A3 (en) * 1981-08-28 1983-04-20 Hitachi, Ltd. Speaker system

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