FR814659A - Loud speaker - Google Patents

Loud speaker

Info

Publication number
FR814659A
FR814659A FR814659DA FR814659A FR 814659 A FR814659 A FR 814659A FR 814659D A FR814659D A FR 814659DA FR 814659 A FR814659 A FR 814659A
Authority
FR
France
Prior art keywords
loud speaker
loud
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
French (fr)
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR814659A publication Critical patent/FR814659A/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 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • 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
FR814659D 1935-12-16 1936-12-07 Loud speaker Expired FR814659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE479549X 1935-12-16

Publications (1)

Publication Number Publication Date
FR814659A true FR814659A (en) 1937-06-28

Family

ID=6542427

Family Applications (1)

Application Number Title Priority Date Filing Date
FR814659D Expired FR814659A (en) 1935-12-16 1936-12-07 Loud speaker

Country Status (2)

Country Link
FR (1) FR814659A (en)
GB (1) GB479549A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402375A1 (en) * 1977-09-06 1979-03-30 Selmin Sas METHOD AND DEVICES FOR OMNIDIRECTIONAL ACOUSTIC WAVES RADIATION

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544742A (en) * 1946-12-31 1951-03-13 Vibra Sonic Inc Cubic loud-speaker cabinet
GB2269960B (en) * 1992-08-20 1996-03-27 Canon Audio Ltd Sound output system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402375A1 (en) * 1977-09-06 1979-03-30 Selmin Sas METHOD AND DEVICES FOR OMNIDIRECTIONAL ACOUSTIC WAVES RADIATION

Also Published As

Publication number Publication date
GB479549A (en) 1938-02-08

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