LU29932A1 - - Google Patents

Info

Publication number: LU29932A1
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.)

1949-02-14

Publication of LU29932A1 publication Critical patent/LU29932A1/xx

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)

LU29932D 1949-02-14 LU29932A1 (ko)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number	Publication Date
LU29932A1 true LU29932A1 (ko)

Family

ID=3877841

Family Applications (1)

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

Country Status (5)

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

0
- LU LU29932D patent/LU29932A1/xx unknown
- BE BE487335D patent/BE487335A/xx unknown
- NL NL78413D patent/NL78413C/xx active
1950
- 1950-02-10 GB GB3448/50A patent/GB683822A/en not_active Expired
- 1950-02-10 FR FR1012303D patent/FR1012303A/fr not_active Expired

Also Published As

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

Publication	Publication Date	Title
AT166754B (ko)	1950-09-25
AT193848B (ko)	1957-12-10
BE155588A (ko)
BE437616A (ko)
BE449134A (ko)
BE457200A (ko)
BE476015A (ko)
BE476643A (ko)
BE476829A (ko)
BE479156A (ko)
BE480597A (ko)
BE480618A (ko)
BE482756A (ko)
BE483443A (ko)
BE483689A (ko)
BE485768A (ko)
BE485770A (ko)
BE486689A (ko)	1949-01-31
BE486819A (ko)
BE487077A (ko)	1949-02-15
BE487289A (ko)
BE487335A (ko)
BE487425A (ko)
BE487428A (ko)
BE487564A (ko)