NL78413C - - Google Patents

Info

Publication number
NL78413C
NL78413C NL78413DA NL78413C NL 78413 C NL78413 C NL 78413C NL 78413D A NL78413D A NL 78413DA NL 78413 C NL78413 C NL 78413C
Authority
NL
Netherlands
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 NL78413C publication Critical patent/NL78413C/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

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
NL78413D 1949-02-14 NL78413C (fr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
NL78413C true NL78413C (fr)

Family

ID=3877841

Family Applications (1)

Application Number Title Priority Date Filing Date
NL78413D NL78413C (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
LU29932A1 (fr)
BE487335A (fr)
GB683822A (en) 1952-12-03
FR1012303A (fr) 1952-07-08

Similar Documents

Publication Publication Date Title
AT166754B (fr)
AT193848B (fr)
BE155588A (fr)
BE437616A (fr)
BE449134A (fr)
BE457200A (fr)
BE476015A (fr)
BE476643A (fr)
BE476829A (fr)
BE479156A (fr)
BE480597A (fr)
BE480618A (fr)
BE482756A (fr)
BE483443A (fr)
BE483689A (fr)
BE485768A (fr)
BE485770A (fr)
BE486689A (fr)
BE486819A (fr)
BE487077A (fr)
BE487289A (fr)
BE487335A (fr)
BE487425A (fr)
BE487428A (fr)
BE487564A (fr)