BE528649A - - Google Patents
Info
- Publication number
- BE528649A BE528649A BE528649DA BE528649A BE 528649 A BE528649 A BE 528649A BE 528649D A BE528649D A BE 528649DA BE 528649 A BE528649 A BE 528649A
- Authority
- BE
- Belgium
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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE1133412X | 1954-05-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE528649A true BE528649A (xx) |
Family
ID=3893713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE528649D BE528649A (xx) | 1954-05-06 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE528649A (xx) |
| DE (1) | DE1048605B (xx) |
| FR (1) | FR1133412A (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2926740A (en) * | 1957-09-11 | 1960-03-01 | Holland Standards Inc | Acoustic control device for loudspeakers |
| ES187409Y (es) * | 1973-01-05 | 1974-08-16 | Portela Seijo | Bafle acustico para altavoces. |
-
0
- DE DENDAT1048605D patent/DE1048605B/de active Pending
- BE BE528649D patent/BE528649A/xx unknown
-
1955
- 1955-05-06 FR FR1133412D patent/FR1133412A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1048605B (xx) | |
| FR1133412A (fr) | 1957-03-27 |