BE571726A - - Google Patents
Info
- Publication number
- BE571726A BE571726A BE571726A BE571726A BE571726A BE 571726 A BE571726 A BE 571726A BE 571726 A BE571726 A BE 571726A BE 571726 A BE571726 A BE 571726A BE 571726 A BE571726 A BE 571726A
- 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
- H04R1/227—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only using transducers reproducing the same frequency band
-
- 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
- H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
- H04R1/2892—Mountings or supports for transducers
- H04R1/2896—Mountings or supports for transducers 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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR771501A FR73899E (fr) | 1958-07-30 | 1958-07-30 | Dispositif haut-parleur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE571726A true BE571726A (xx) | 1959-04-03 |
Family
ID=8707130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE571726A BE571726A (xx) | 1958-07-30 | 1958-10-03 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE571726A (xx) |
| FR (2) | FR1196858A (xx) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3074503A (en) * | 1961-01-19 | 1963-01-22 | Jr Barry Cool | Loud speaker enclosures |
| US3393764A (en) * | 1966-12-27 | 1968-07-23 | Curtiss R. Schafer | Loudspeaker systems |
| DE2725346C3 (de) * | 1977-06-04 | 1981-05-14 | Josef Wilhelm 8725 Arnstein Manger | Lautsprecher |
| US4501934A (en) * | 1983-07-18 | 1985-02-26 | W2 Vehicle Design And Development | Loudspeaker system |
| DE3918654A1 (de) * | 1989-06-08 | 1990-12-13 | Manfred Dipl Ing Diestertich | Lautsprecher |
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1957
- 1957-10-07 FR FR1196858D patent/FR1196858A/fr not_active Expired
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1958
- 1958-07-30 FR FR771501A patent/FR73899E/fr not_active Expired
- 1958-10-03 BE BE571726A patent/BE571726A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1196858A (fr) | 1959-11-26 |
| FR73899E (fr) | 1960-09-12 |