FR473046A - Système acoustique, applicable aux phonographes, microphones, instruments de musique, avertisseurs et appareils de surdité - Google Patents

Système acoustique, applicable aux phonographes, microphones, instruments de musique, avertisseurs et appareils de surdité

Info

Publication number
FR473046A
FR473046A FR473046DA FR473046A FR 473046 A FR473046 A FR 473046A FR 473046D A FR473046D A FR 473046DA FR 473046 A FR473046 A FR 473046A
Authority
FR
France
Prior art keywords
phonographs
horns
microphones
applicable
hearing aids
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
Lecomte Celinat
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR473046A publication Critical patent/FR473046A/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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—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

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR473046D 1913-09-04 1913-09-04 Système acoustique, applicable aux phonographes, microphones, instruments de musique, avertisseurs et appareils de surdité Expired FR473046A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR473046T 1913-09-04

Publications (1)

Publication Number Publication Date
FR473046A true FR473046A (fr) 1914-12-28

Family

ID=1511159

Family Applications (1)

Application Number Title Priority Date Filing Date
FR473046D Expired FR473046A (fr) 1913-09-04 1913-09-04 Système acoustique, applicable aux phonographes, microphones, instruments de musique, avertisseurs et appareils de surdité

Country Status (1)

Country Link
FR (1) FR473046A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915134A (en) * 1958-04-29 1959-12-01 John J Braund Loudspeaker apparatus
US3027964A (en) * 1958-06-24 1962-04-03 Ampex Loudspeaker
US3972385A (en) * 1973-01-17 1976-08-03 Onkyo Kabushiki Kaisha Horn speaker
US4040503A (en) * 1973-01-17 1977-08-09 Onkyo Kabushiki Kaisha Horn speaker
US4091891A (en) * 1973-01-17 1978-05-30 Onkyo Kabushiki Kaisha Horn speaker

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915134A (en) * 1958-04-29 1959-12-01 John J Braund Loudspeaker apparatus
US3027964A (en) * 1958-06-24 1962-04-03 Ampex Loudspeaker
US3972385A (en) * 1973-01-17 1976-08-03 Onkyo Kabushiki Kaisha Horn speaker
US4040503A (en) * 1973-01-17 1977-08-09 Onkyo Kabushiki Kaisha Horn speaker
US4091891A (en) * 1973-01-17 1978-05-30 Onkyo Kabushiki Kaisha Horn speaker

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