FR1178337A - Dispositif de conversion électro-acoustique - Google Patents

Dispositif de conversion électro-acoustique

Info

Publication number
FR1178337A
FR1178337A FR1178337DA FR1178337A FR 1178337 A FR1178337 A FR 1178337A FR 1178337D A FR1178337D A FR 1178337DA FR 1178337 A FR1178337 A FR 1178337A
Authority
FR
France
Prior art keywords
electro
conversion device
acoustic conversion
acoustic
conversion
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)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1178337A publication Critical patent/FR1178337A/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; ELECTRIC HEARING AIDS; 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 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
FR1178337D 1956-07-11 1957-07-09 Dispositif de conversion électro-acoustique Expired FR1178337A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN12473A DE1058557B (de) 1956-07-11 1956-07-11 Elektroakustische UEbertragungsvorrichtung

Publications (1)

Publication Number Publication Date
FR1178337A true FR1178337A (fr) 1959-05-06

Family

ID=7339592

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1178337D Expired FR1178337A (fr) 1956-07-11 1957-07-09 Dispositif de conversion électro-acoustique

Country Status (2)

Country Link
DE (1) DE1058557B (fr)
FR (1) FR1178337A (fr)

Also Published As

Publication number Publication date
DE1058557B (de) 1959-06-04

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