FR672063A - Haut-parleur - Google Patents

Haut-parleur

Info

Publication number
FR672063A
FR672063A FR672063DA FR672063A FR 672063 A FR672063 A FR 672063A FR 672063D A FR672063D A FR 672063DA FR 672063 A FR672063 A FR 672063A
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
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 FR672063A publication Critical patent/FR672063A/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
    • H04R1/22—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)
  • Diaphragms For Electromechanical Transducers (AREA)
FR672063D 1928-04-27 1929-03-25 Haut-parleur Expired FR672063A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL310526X 1928-04-27

Publications (1)

Publication Number Publication Date
FR672063A true FR672063A (fr) 1929-12-23

Family

ID=19783620

Family Applications (1)

Application Number Title Priority Date Filing Date
FR672063D Expired FR672063A (fr) 1928-04-27 1929-03-25 Haut-parleur

Country Status (2)

Country Link
FR (1) FR672063A (fr)
GB (1) GB310526A (fr)

Also Published As

Publication number Publication date
GB310526A (en) 1930-04-03

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