FR715266A - Perfectionnements apportés à l'émission de sons par les récepteurs radiophoniques et les machines parlantes - Google Patents

Perfectionnements apportés à l'émission de sons par les récepteurs radiophoniques et les machines parlantes

Info

Publication number
FR715266A
FR715266A FR715266DA FR715266A FR 715266 A FR715266 A FR 715266A FR 715266D A FR715266D A FR 715266DA FR 715266 A FR715266 A FR 715266A
Authority
FR
France
Prior art keywords
sounds
emission
radio receivers
talking machines
talking
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)
French (fr)
Inventor
Pilade Fabbri
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 FR715266A publication Critical patent/FR715266A/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)
  • Details Of Audible-Bandwidth Transducers (AREA)
FR715266D 1930-04-02 1931-02-27 Perfectionnements apportés à l'émission de sons par les récepteurs radiophoniques et les machines parlantes Expired FR715266A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT384973X 1930-04-02

Publications (1)

Publication Number Publication Date
FR715266A true FR715266A (fr) 1931-11-28

Family

ID=11246049

Family Applications (1)

Application Number Title Priority Date Filing Date
FR715266D Expired FR715266A (fr) 1930-04-02 1931-02-27 Perfectionnements apportés à l'émission de sons par les récepteurs radiophoniques et les machines parlantes

Country Status (3)

Country Link
BE (1) BE377735A (cs)
FR (1) FR715266A (cs)
GB (1) GB384973A (cs)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1012641B (de) * 1954-04-27 1957-07-25 Akg Akustische Kino Geraete Anordnung an Schallwandlern zur Glaettung der Frequenzcharakteristik
FR2459599A1 (fr) * 1979-06-14 1981-01-09 Lagarrigue Jacques Enceinte acoustique de salon a tuyaux
DE3843050A1 (de) * 1987-12-25 1989-07-06 Yamaha Corp Elektrischer akustikwandler

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142353A (en) * 1962-10-25 1964-07-28 Carmine V Todisco Speaker enclosure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1012641B (de) * 1954-04-27 1957-07-25 Akg Akustische Kino Geraete Anordnung an Schallwandlern zur Glaettung der Frequenzcharakteristik
FR2459599A1 (fr) * 1979-06-14 1981-01-09 Lagarrigue Jacques Enceinte acoustique de salon a tuyaux
DE3843050A1 (de) * 1987-12-25 1989-07-06 Yamaha Corp Elektrischer akustikwandler
DE3843050C2 (de) * 1987-12-25 1998-01-15 Yamaha Corp Elektrischer Akustikwandler

Also Published As

Publication number Publication date
BE377735A (cs)
GB384973A (en) 1932-12-15

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