FR1227457A - Improvements to sound transmitters comprising an acoustic source and a reflector - Google Patents

Improvements to sound transmitters comprising an acoustic source and a reflector

Info

Publication number
FR1227457A
FR1227457A FR788711A FR788711A FR1227457A FR 1227457 A FR1227457 A FR 1227457A FR 788711 A FR788711 A FR 788711A FR 788711 A FR788711 A FR 788711A FR 1227457 A FR1227457 A FR 1227457A
Authority
FR
France
Prior art keywords
reflector
acoustic source
sound transmitters
transmitters
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
FR788711A
Other languages
French (fr)
Inventor
Joseph-Henri Leon
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
Priority to FR788711A priority Critical patent/FR1227457A/en
Application granted granted Critical
Publication of FR1227457A publication Critical patent/FR1227457A/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
    • H04R1/32—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
FR788711A 1959-03-07 1959-03-07 Improvements to sound transmitters comprising an acoustic source and a reflector Expired FR1227457A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR788711A FR1227457A (en) 1959-03-07 1959-03-07 Improvements to sound transmitters comprising an acoustic source and a reflector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR788711A FR1227457A (en) 1959-03-07 1959-03-07 Improvements to sound transmitters comprising an acoustic source and a reflector

Publications (1)

Publication Number Publication Date
FR1227457A true FR1227457A (en) 1960-08-22

Family

ID=8712172

Family Applications (1)

Application Number Title Priority Date Filing Date
FR788711A Expired FR1227457A (en) 1959-03-07 1959-03-07 Improvements to sound transmitters comprising an acoustic source and a reflector

Country Status (1)

Country Link
FR (1) FR1227457A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710464A1 (en) * 1986-04-01 1987-10-15 Canon Kk SOUND RADIATION SYSTEM

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710464A1 (en) * 1986-04-01 1987-10-15 Canon Kk SOUND RADIATION SYSTEM

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