FR671411A - Improvement in membrane diffusers - Google Patents

Improvement in membrane diffusers

Info

Publication number
FR671411A
FR671411A FR671411DA FR671411A FR 671411 A FR671411 A FR 671411A FR 671411D A FR671411D A FR 671411DA FR 671411 A FR671411 A FR 671411A
Authority
FR
France
Prior art keywords
improvement
membrane diffusers
diffusers
membrane
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
Roger-Emile Logerot
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 FR671411A publication Critical patent/FR671411A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
    • H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
FR671411D 1929-03-13 1929-03-13 Improvement in membrane diffusers Expired FR671411A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR671411T 1929-03-13

Publications (1)

Publication Number Publication Date
FR671411A true FR671411A (en) 1929-12-12

Family

ID=9016950

Family Applications (1)

Application Number Title Priority Date Filing Date
FR671411D Expired FR671411A (en) 1929-03-13 1929-03-13 Improvement in membrane diffusers

Country Status (1)

Country Link
FR (1) FR671411A (en)

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