LU29932A1 - - Google Patents

Info

Publication number
LU29932A1
LU29932A1 LU29932DA LU29932A1 LU 29932 A1 LU29932 A1 LU 29932A1 LU 29932D A LU29932D A LU 29932DA LU 29932 A1 LU29932 A1 LU 29932A1
Authority
LU
Luxembourg
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 LU29932A1 publication Critical patent/LU29932A1/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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
    • H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line for loudspeaker transducers
    • 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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
    • H04R1/2842—Enclosures comprising vibrating or resonating arrangements of the bandpass type for loudspeaker transducers
LU29932D 1949-02-14 LU29932A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE683822X 1949-02-14

Publications (1)

Publication Number Publication Date
LU29932A1 true LU29932A1 (fr)

Family

ID=3877841

Family Applications (1)

Application Number Title Priority Date Filing Date
LU29932D LU29932A1 (fr) 1949-02-14

Country Status (5)

Country Link
BE (1) BE487335A (fr)
FR (1) FR1012303A (fr)
GB (1) GB683822A (fr)
LU (1) LU29932A1 (fr)
NL (1) NL78413C (fr)

Also Published As

Publication number Publication date
FR1012303A (fr) 1952-07-08
BE487335A (fr)
GB683822A (en) 1952-12-03
NL78413C (fr)

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