BE400733A - - Google Patents
Info
- Publication number
- BE400733A BE400733A BE400733DA BE400733A BE 400733 A BE400733 A BE 400733A BE 400733D A BE400733D A BE 400733DA BE 400733 A BE400733 A BE 400733A
- 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
- H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
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- 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
- H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
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)
- Circuit For Audible Band Transducer (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US650391A US1967223A (en) | 1933-01-06 | 1933-01-06 | Vibration transmitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE400733A true BE400733A (pt) |
Family
ID=24608704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE400733D BE400733A (pt) | 1933-01-06 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1967223A (pt) |
| BE (1) | BE400733A (pt) |
| FR (1) | FR766483A (pt) |
| GB (1) | GB430921A (pt) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2518805A (en) * | 1945-08-24 | 1950-08-15 | Massa Frank | Resonant chamber for microphones |
| US2713396A (en) * | 1950-05-24 | 1955-07-19 | Ernest A Tavares | Novel, small, extended low frequency response, loudspeaker enclosure |
| US2820526A (en) * | 1952-07-10 | 1958-01-21 | Ernest A Tavares | Sound producing system |
| DE1004232B (de) * | 1952-11-18 | 1957-03-14 | Ernst Romen | Nahtlose Membran aus Faserstoff, insbesondere fuer Lautsprecher |
| US2805729A (en) * | 1953-09-15 | 1957-09-10 | Read Oliver | Loudspeaker enclosure |
| GB765183A (en) * | 1954-01-05 | 1957-01-02 | Donald Maynard Chave | Improvements in or relating to loudspeakers |
| US2903084A (en) * | 1956-06-14 | 1959-09-08 | Howard R Johnson | Speaker assembly |
| US3151699A (en) * | 1963-04-10 | 1964-10-06 | Hartley D Peavey | Portable sounding apparatus |
| US3403235A (en) * | 1965-03-17 | 1968-09-24 | Newmarkets Inc | Wide-range loudspeaker |
| US3410400A (en) * | 1965-11-26 | 1968-11-12 | Allen Bradley Co | Reciprocating air column sifter |
| US3845246A (en) * | 1973-03-28 | 1974-10-29 | Gte Sylvania Inc | Speaker system |
| US6700987B2 (en) * | 2000-08-25 | 2004-03-02 | Matsushita Electric Industrial Co., Ltd. | Loudspeaker |
| US7073624B2 (en) * | 2002-07-31 | 2006-07-11 | Harman International Industries, Incorporated | Loudspeaker baffle isolation system |
| JP4594127B2 (ja) * | 2005-02-17 | 2010-12-08 | パイオニア株式会社 | スピーカー装置用のフレーム及びスピーカー装置 |
| JP2006229517A (ja) * | 2005-02-17 | 2006-08-31 | Pioneer Electronic Corp | スピーカー装置用のフレーム及びスピーカー装置 |
| US8276706B2 (en) * | 2008-06-27 | 2012-10-02 | Rgb Systems, Inc. | Method and apparatus for a loudspeaker assembly |
-
0
- BE BE400733D patent/BE400733A/xx unknown
-
1933
- 1933-01-06 US US650391A patent/US1967223A/en not_active Expired - Lifetime
- 1933-12-27 GB GB36416/33A patent/GB430921A/en not_active Expired
-
1934
- 1934-01-04 FR FR766483D patent/FR766483A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR766483A (fr) | 1934-06-28 |
| US1967223A (en) | 1934-07-24 |
| GB430921A (en) | 1935-06-27 |