NL22539C - - Google Patents
Info
- Publication number
- NL22539C NL22539C NL22539DA NL22539C NL 22539 C NL22539 C NL 22539C NL 22539D A NL22539D A NL 22539DA NL 22539 C NL22539 C NL 22539C
- Authority
- NL
- Netherlands
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
- H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/127—Non-planar diaphragms or cones dome-shaped
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US127023A US1707545A (en) | 1926-08-04 | 1926-08-04 | Acoustic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL22539C true NL22539C (ru) |
Family
ID=22427925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL22539D NL22539C (ru) | 1926-08-04 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US1707545A (ru) |
| BE (1) | BE344484A (ru) |
| DE (1) | DE540540C (ru) |
| FR (1) | FR636818A (ru) |
| GB (1) | GB275571A (ru) |
| NL (1) | NL22539C (ru) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE968466C (de) * | 1952-02-23 | 1958-02-20 | Siemens Ag | Druckkammerlautsprecher, insbesondere mit Kalottenmembran |
| US4157741A (en) * | 1978-08-16 | 1979-06-12 | Goldwater Alan J | Phase plug |
| US4310065A (en) * | 1979-05-11 | 1982-01-12 | Chromalloy Electronics Corporation | Radial horn |
| US4718517A (en) * | 1986-02-27 | 1988-01-12 | Electro-Voice, Inc. | Loudspeaker and acoustic transformer therefor |
| US4882562A (en) * | 1986-03-11 | 1989-11-21 | Turbosound Limited | Adaptor for coupling plural compression drivers to a common horn |
| GB0202284D0 (en) | 2002-01-31 | 2002-03-20 | Martin Audio Ltd | Directional loudspeaker |
| US20060034475A1 (en) * | 2004-08-16 | 2006-02-16 | Geddes Earl R | Compression driver plug |
| JP5268203B2 (ja) | 2008-08-14 | 2013-08-21 | ハーマン インターナショナル インダストリーズ インコーポレイテッド | 直接放射ラウドスピーカのためのフェイズプラグおよび音響レンズ |
| FR2955445B1 (fr) | 2010-01-15 | 2013-06-07 | Phl Audio | Transducteur electrodynamique a dome et suspension interne |
| FR2955446B1 (fr) | 2010-01-15 | 2015-06-05 | Phl Audio | Transducteur electrodynamique a dome et suspension flottante |
| FR2955444B1 (fr) | 2010-01-15 | 2012-08-03 | Phl Audio | Systeme de haut-parleur coaxial a chambre de compression |
-
0
- NL NL22539D patent/NL22539C/xx active
- BE BE344484D patent/BE344484A/xx unknown
-
1926
- 1926-08-04 US US127023A patent/US1707545A/en not_active Expired - Lifetime
-
1927
- 1927-06-14 GB GB15795/27A patent/GB275571A/en not_active Expired
- 1927-06-18 DE DEE35832D patent/DE540540C/de not_active Expired
- 1927-06-29 FR FR636818D patent/FR636818A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE344484A (ru) | |
| FR636818A (fr) | 1928-04-17 |
| GB275571A (en) | 1928-07-12 |
| DE540540C (de) | 1932-01-09 |
| US1707545A (en) | 1929-04-02 |