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 (en])

Applications Claiming Priority (1)

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

Publications (1)

Publication Number	Publication Date
LU29932A1 true LU29932A1 (en])

Family

ID=3877841

Family Applications (1)

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

Country Status (5)

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

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

Also Published As

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

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