BE487179A - - Google Patents

Info

Publication number
BE487179A
BE487179A BE487179DA BE487179A BE 487179 A BE487179 A BE 487179A BE 487179D A BE487179D A BE 487179DA BE 487179 A BE487179 A BE 487179A
Authority
BE
Belgium
Application number
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.)
Publication of BE487179A publication Critical patent/BE487179A/xx

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 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
    • 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)
BE487179D 1948-02-04 BE487179A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK979919X 1948-02-04

Publications (1)

Publication Number Publication Date
BE487179A true BE487179A (enrdf_load_html_response)

Family

ID=8156368

Family Applications (1)

Application Number Title Priority Date Filing Date
BE487179D BE487179A (enrdf_load_html_response) 1948-02-04

Country Status (2)

Country Link
BE (1) BE487179A (enrdf_load_html_response)
FR (1) FR979919A (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1087170B (de) * 1955-02-19 1960-08-18 Akustische Lautsprecheranordnung fuer Rundfunk- und Fernsehgeraete mit mindestens einem Tieftonlautsprecher und mindestens einem Hochtonsystem

Also Published As

Publication number Publication date
FR979919A (fr) 1951-05-07

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