FR827276A - Improvements to electrodynamic loudspeakers - Google Patents

Improvements to electrodynamic loudspeakers

Info

Publication number
FR827276A
FR827276A FR827276DA FR827276A FR 827276 A FR827276 A FR 827276A FR 827276D A FR827276D A FR 827276DA FR 827276 A FR827276 A FR 827276A
Authority
FR
France
Prior art keywords
electrodynamic loudspeakers
electrodynamic
loudspeakers
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
Michel Yardeny
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 FR827276A publication Critical patent/FR827276A/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
FR827276D 1937-01-07 1937-01-07 Improvements to electrodynamic loudspeakers Expired FR827276A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR827276T 1937-01-07

Publications (1)

Publication Number Publication Date
FR827276A true FR827276A (en) 1938-04-22

Family

ID=9283254

Family Applications (1)

Application Number Title Priority Date Filing Date
FR827276D Expired FR827276A (en) 1937-01-07 1937-01-07 Improvements to electrodynamic loudspeakers

Country Status (1)

Country Link
FR (1) FR827276A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501032A (en) * 1945-11-30 1950-03-21 Rca Corp Permanent magnet assembly for electrodynamic loud-speakers
US2997549A (en) * 1958-03-20 1961-08-22 Joseph A Hassan Loudspeaker construction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501032A (en) * 1945-11-30 1950-03-21 Rca Corp Permanent magnet assembly for electrodynamic loud-speakers
US2997549A (en) * 1958-03-20 1961-08-22 Joseph A Hassan Loudspeaker construction

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