BE424560A - - Google Patents
Info
- Publication number
- BE424560A BE424560A BE424560DA BE424560A BE 424560 A BE424560 A BE 424560A BE 424560D A BE424560D A BE 424560DA BE 424560 A BE424560 A BE 424560A
- 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
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US110646A US2135610A (en) | 1936-11-13 | 1936-11-13 | Horn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE424560A true BE424560A (en) |
Family
ID=22334140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE424560D BE424560A (en) | 1936-11-13 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2135610A (en) |
| BE (1) | BE424560A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2458038A (en) * | 1942-08-29 | 1949-01-04 | Rca Corp | Acoustical apparatus |
| US3852529A (en) * | 1973-01-10 | 1974-12-03 | Motorola Inc | Acoustic horn |
| US4580655A (en) * | 1983-10-05 | 1986-04-08 | Jbl Incorporated | Defined coverage loudspeaker horn |
| US4776428A (en) * | 1987-11-16 | 1988-10-11 | Belisle Acoustique Inc. | Sound projection system |
| US7177437B1 (en) | 2001-10-19 | 2007-02-13 | Duckworth Holding, Llc C/O Osc Audio Products, Inc. | Multiple aperture diffraction device |
| US8718310B2 (en) | 2001-10-19 | 2014-05-06 | Qsc Holdings, Inc. | Multiple aperture speaker assembly |
| US7299893B2 (en) * | 2003-02-21 | 2007-11-27 | Meyer Sound Laboratories, Incorporated | Loudspeaker horn and method for controlling grating lobes in a line array of acoustic sources |
| US7275621B1 (en) | 2005-01-18 | 2007-10-02 | Klipsch, Llc | Skew horn for a loudspeaker |
| GB2425436B (en) * | 2005-04-21 | 2007-06-06 | Martin Audio Ltd | Acoustic loading device for loudspeakers |
| ITRM20060637A1 (en) * | 2006-11-30 | 2008-06-01 | B & C Speakers S P A | ACOUSTIC WAVE GUIDE AND ELECTROACOUSTIC SYSTEM INCLUDING SUCH WAVE GUIDE |
| JP5501289B2 (en) * | 2011-05-23 | 2014-05-21 | リンナイ株式会社 | Gas stove |
| CN109891494B (en) * | 2016-10-21 | 2023-07-11 | 哈曼国际工业有限公司 | Acoustic component, acoustic device and acoustic system |
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0
- BE BE424560D patent/BE424560A/xx unknown
-
1936
- 1936-11-13 US US110646A patent/US2135610A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2135610A (en) | 1938-11-08 |