FR868717A - Haut-parleur anti-tourbillonnaire - Google Patents

Haut-parleur anti-tourbillonnaire

Info

Publication number
FR868717A
FR868717A FR868717DA FR868717A FR 868717 A FR868717 A FR 868717A FR 868717D A FR868717D A FR 868717DA FR 868717 A FR868717 A FR 868717A
Authority
FR
France
Prior art keywords
swirl
speaker
swirl speaker
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
English (en)
Inventor
Andre Marie Bernard Charlin
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 FR868717A publication Critical patent/FR868717A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
FR868717D 1943-10-07 1939-04-05 Haut-parleur anti-tourbillonnaire Expired FR868717A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR53280T 1943-10-07

Publications (1)

Publication Number Publication Date
FR868717A true FR868717A (fr) 1942-01-14

Family

ID=8687858

Family Applications (2)

Application Number Title Priority Date Filing Date
FR868717D Expired FR868717A (fr) 1943-10-07 1939-04-05 Haut-parleur anti-tourbillonnaire
FR53280D Expired FR53280E (fr) 1943-10-07 1943-10-07 Haut parleur anti-tourbillonnaire

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR53280D Expired FR53280E (fr) 1943-10-07 1943-10-07 Haut parleur anti-tourbillonnaire

Country Status (1)

Country Link
FR (2) FR868717A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1159028B (de) * 1960-07-15 1963-12-12 Rca Corp Lautsprechersystem fuer stereophonische Wiedergabe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1159028B (de) * 1960-07-15 1963-12-12 Rca Corp Lautsprechersystem fuer stereophonische Wiedergabe

Also Published As

Publication number Publication date
FR53280E (fr) 1945-10-03

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