GB1426391A - Transducer device - Google Patents
Transducer deviceInfo
- Publication number
- GB1426391A GB1426391A GB2928973A GB2928973A GB1426391A GB 1426391 A GB1426391 A GB 1426391A GB 2928973 A GB2928973 A GB 2928973A GB 2928973 A GB2928973 A GB 2928973A GB 1426391 A GB1426391 A GB 1426391A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnet
- june
- pad
- transducer
- permanent magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/02—Loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US26525072A | 1972-06-22 | 1972-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1426391A true GB1426391A (en) | 1976-02-25 |
Family
ID=23009664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2928973A Expired GB1426391A (en) | 1972-06-22 | 1973-06-20 | Transducer device |
Country Status (16)
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8295537B2 (en) | 2010-03-31 | 2012-10-23 | Bose Corporation | Loudspeaker moment and torque balancing |
| US8295536B2 (en) | 2010-03-31 | 2012-10-23 | Bose Corporation | Moving magnet levered loudspeaker |
| US9055370B2 (en) | 2012-08-31 | 2015-06-09 | Bose Corporation | Vibration-reducing passive radiators |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2507704C3 (de) * | 1975-02-22 | 1980-07-24 | Dr. Kuhn & Co Gmbh, 5000 Koeln | Sprechhilfegerät für Kehlkopfoperierte |
| JPS5723994Y2 (US07494231-20090224-C00006.png) * | 1976-12-03 | 1982-05-24 | ||
| DE2810459C3 (de) * | 1977-03-14 | 1986-11-13 | Sergej Valentinovič Čeljabinsk Burundukov | Elektrodynamischer Wandler von mechanischen Schwingungen in elektrische Signale und umgekehrt, Stereo- und Monophonie-Tonköpfe und elektrodynamisches Mikrophon |
| JPS5664514A (en) * | 1979-10-29 | 1981-06-01 | Dx Antenna Co Ltd | Filter |
| US4385210A (en) * | 1980-09-19 | 1983-05-24 | Electro-Magnetic Corporation | Electro-acoustic planar transducer |
| DE3208678A1 (de) * | 1982-03-10 | 1983-09-22 | Siemens AG, 1000 Berlin und 8000 München | Sprechanbahnungsgeraet |
| FR2549335B1 (fr) * | 1983-07-13 | 1985-10-31 | Corselli Laurent | Haut-parleur a modulation magnetique |
| JPH0761193B2 (ja) * | 1991-07-23 | 1995-06-28 | ボディソニック株式会社 | 電気・機械振動変換器 |
| CN102158170B (zh) * | 2002-09-26 | 2013-01-02 | 精工爱普生株式会社 | 驱动机构 |
| CN103718567B (zh) * | 2011-07-21 | 2017-09-08 | 喜恩吉股份有限公司 | 安装自共振型发声扬声器的方法 |
| JP5668233B1 (ja) | 2014-03-26 | 2015-02-12 | 株式会社サウンドファン | 万能スピーカ |
| TWI610576B (zh) * | 2016-08-15 | 2018-01-01 | 緯創資通股份有限公司 | 揚聲器 |
| GB201619516D0 (en) * | 2016-11-18 | 2017-01-04 | Cooper Technologies Co | Electroacoustic driver and related loudspeaker/sounder |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2110153A (en) * | 1934-10-19 | 1938-03-08 | Philips Nv | Magnetic system |
| US2492255A (en) * | 1944-12-26 | 1949-12-27 | John O Angehrn | Sealed-coil type vibratory magnet loudspeaker |
| DE1037510B (de) * | 1957-01-09 | 1958-08-28 | Johann Distler K G | Elektromagnetischer Wandler |
| US3076062A (en) * | 1959-10-30 | 1963-01-29 | Dyna Magnetic Devices Inc | Hearing-aid sound transducer |
| US3501358A (en) * | 1967-08-30 | 1970-03-17 | Gen Electric | Method of making permanent magnet material powders having superior magnetic characteristics |
| DE1762107A1 (de) * | 1968-04-08 | 1970-04-30 | Lothar Kuhnert | Rundlautsprecher |
| US3651283A (en) * | 1968-12-18 | 1972-03-21 | Audio Arts Inc | Loudspeaker having elongated rectangular moving coil |
| US3625779A (en) * | 1969-08-21 | 1971-12-07 | Gen Electric | Reduction-fusion process for the production of rare earth intermetallic compounds |
| US3655464A (en) * | 1970-04-30 | 1972-04-11 | Gen Electric | Process of preparing a liquid sintered cobalt-rare earth intermetallic product |
| US3655463A (en) * | 1970-04-30 | 1972-04-11 | Gen Electric | Sintered cobalt-rare earth intermetallic process using solid sintering additive |
| US3682715A (en) * | 1970-08-24 | 1972-08-08 | Gen Electric | Sintered cobalt-rare earth intermetallic product including samarium and lanthanum and permanent magnets produced therefrom |
-
1972
- 1972-06-22 US US00265250A patent/US3798391A/en not_active Expired - Lifetime
-
1973
- 1973-05-24 CA CA172,164A patent/CA963571A/en not_active Expired
- 1973-05-26 DE DE2326960A patent/DE2326960C3/de not_active Expired
- 1973-05-30 IE IE864/73A patent/IE37725B1/xx unknown
- 1973-06-13 IT IT25299/73A patent/IT989118B/it active
- 1973-06-14 FR FR7321658A patent/FR2202420B1/fr not_active Expired
- 1973-06-19 NL NL7308542A patent/NL7308542A/xx not_active Application Discontinuation
- 1973-06-20 GB GB2928973A patent/GB1426391A/en not_active Expired
- 1973-06-20 ES ES416111A patent/ES416111A1/es not_active Expired
- 1973-06-21 SU SU7301932098A patent/SU583783A3/ru active
- 1973-06-21 CH CH906773A patent/CH559993A5/xx not_active IP Right Cessation
- 1973-06-21 SE SE7308813A patent/SE388103B/xx unknown
- 1973-06-22 BE BE132588A patent/BE801293A/xx not_active IP Right Cessation
- 1973-06-22 JP JP48069934A patent/JPS5013027A/ja active Pending
- 1973-06-22 KR KR7300986A patent/KR780000424B1/ko active
-
1977
- 1977-09-22 HK HK494/77A patent/HK49477A/xx unknown
-
1980
- 1980-12-02 JP JP1980172258U patent/JPS6019436Y2/ja not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8295537B2 (en) | 2010-03-31 | 2012-10-23 | Bose Corporation | Loudspeaker moment and torque balancing |
| US8295536B2 (en) | 2010-03-31 | 2012-10-23 | Bose Corporation | Moving magnet levered loudspeaker |
| US9055370B2 (en) | 2012-08-31 | 2015-06-09 | Bose Corporation | Vibration-reducing passive radiators |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5690099U (US07494231-20090224-C00006.png) | 1981-07-18 |
| JPS5013027A (US07494231-20090224-C00006.png) | 1975-02-10 |
| FR2202420A1 (US07494231-20090224-C00006.png) | 1974-05-03 |
| DE2326960C3 (de) | 1981-05-14 |
| CA963571A (en) | 1975-02-25 |
| ES416111A1 (es) | 1976-06-16 |
| US3798391A (en) | 1974-03-19 |
| IE37725B1 (en) | 1977-09-28 |
| HK49477A (en) | 1977-09-30 |
| IE37725L (en) | 1973-12-22 |
| SE388103B (sv) | 1976-09-20 |
| FR2202420B1 (US07494231-20090224-C00006.png) | 1980-04-18 |
| DE2326960A1 (de) | 1974-01-10 |
| JPS6019436Y2 (ja) | 1985-06-11 |
| CH559993A5 (US07494231-20090224-C00006.png) | 1975-06-13 |
| BE801293A (fr) | 1973-10-15 |
| SU583783A3 (ru) | 1977-12-05 |
| DE2326960B2 (de) | 1980-10-02 |
| NL7308542A (US07494231-20090224-C00006.png) | 1973-12-27 |
| IT989118B (it) | 1975-05-20 |
| KR780000424B1 (en) | 1978-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |