FR2199242A1 - - Google Patents
Info
- Publication number
- FR2199242A1 FR2199242A1 FR7332357A FR7332357A FR2199242A1 FR 2199242 A1 FR2199242 A1 FR 2199242A1 FR 7332357 A FR7332357 A FR 7332357A FR 7332357 A FR7332357 A FR 7332357A FR 2199242 A1 FR2199242 A1 FR 2199242A1
- Authority
- FR
- France
- 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.)
- Granted
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
- H04R19/00—Electrostatic transducers
- H04R19/01—Electrostatic transducers characterised by the use of electrets
- H04R19/013—Electrostatic transducers characterised by the use of electrets for loudspeakers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49005—Acoustic transducer
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA151,244A CA989514A (en) | 1972-09-08 | 1972-09-08 | Electromechanical transducer and method of making same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2199242A1 true FR2199242A1 (ru) | 1974-04-05 |
| FR2199242B1 FR2199242B1 (ru) | 1978-11-03 |
Family
ID=4094380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7332357A Expired FR2199242B1 (ru) | 1972-09-08 | 1973-09-07 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3894333A (ru) |
| JP (1) | JPS49101017A (ru) |
| CA (1) | CA989514A (ru) |
| DE (1) | DE2345285A1 (ru) |
| FR (1) | FR2199242B1 (ru) |
| GB (1) | GB1444763A (ru) |
| NL (1) | NL7312472A (ru) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4382328A (en) * | 1981-01-02 | 1983-05-10 | Janszen Arthur A | Method of making stationary electrodes for electrostatic transducers |
| US4533794A (en) * | 1983-05-23 | 1985-08-06 | Beveridge Harold N | Electrode for electrostatic transducer |
| SE505752C2 (sv) * | 1995-12-22 | 1997-10-06 | Tore Fors | Högtalare |
| US6760462B1 (en) | 2003-01-09 | 2004-07-06 | Eminent Technology Incorporated | Planar diaphragm loudspeakers with non-uniform air resistive loading for low frequency modal control |
| RU2440693C2 (ru) * | 2006-01-03 | 2012-01-20 | Транспарент Саунд Текнолоджи БИ.ВИ.,NL | Электростатические акустические системы и способы |
| TWI343756B (en) * | 2009-08-10 | 2011-06-11 | Ind Tech Res Inst | Flat loudspeaker structure |
| TWM395976U (en) * | 2010-06-30 | 2011-01-01 | Tsung-Hung Wu | Electret electroacoustic transducer |
| CN102843628B (zh) * | 2011-06-24 | 2015-01-07 | 富祐鸿科技股份有限公司 | 耳机发声结构及其组装方法 |
| US8699740B2 (en) * | 2011-07-22 | 2014-04-15 | Fortune Grand Technology Inc. | Headphone sound-generating structure and method of assembling same |
| CN106341748A (zh) * | 2015-07-17 | 2017-01-18 | 富祐鸿科技股份有限公司 | 静电耳机发声结构 |
| US10231060B2 (en) * | 2015-12-23 | 2019-03-12 | Sennheiser Electronic Gmbh & Co. Kg | Electrostatic headphones |
| US10697230B2 (en) | 2018-02-27 | 2020-06-30 | Taylor Made Group, Llc | High strength window or door system |
| US11496838B2 (en) * | 2020-04-18 | 2022-11-08 | Audeze, Llc | Electroacoustic transducer assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1247401B (de) * | 1964-10-24 | 1967-08-17 | Tesla Np | Elektretmikrophon und Verfahren zu dessen Montage |
| FR2021232A1 (ru) * | 1968-10-22 | 1970-07-17 | Kureha Chemical Ind Co Ltd | |
| GB1230404A (ru) * | 1967-05-15 | 1971-05-05 | ||
| FR2067388A1 (ru) * | 1969-11-19 | 1971-08-20 | Pioneer Electronic Corp | |
| FR2100906A1 (ru) * | 1970-07-14 | 1972-03-24 | Pioneer Electronic Corp |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3389226A (en) * | 1964-12-29 | 1968-06-18 | Gen Electric | Electrostatic loudspeaker |
| JPS4815867B1 (ru) * | 1969-08-28 | 1973-05-17 |
-
1972
- 1972-09-08 CA CA151,244A patent/CA989514A/en not_active Expired
-
1973
- 1973-05-11 US US359568A patent/US3894333A/en not_active Expired - Lifetime
- 1973-09-05 GB GB4178273A patent/GB1444763A/en not_active Expired
- 1973-09-07 DE DE19732345285 patent/DE2345285A1/de active Pending
- 1973-09-07 FR FR7332357A patent/FR2199242B1/fr not_active Expired
- 1973-09-07 JP JP48101020A patent/JPS49101017A/ja active Pending
- 1973-09-14 NL NL7312472A patent/NL7312472A/xx not_active Application Discontinuation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1247401B (de) * | 1964-10-24 | 1967-08-17 | Tesla Np | Elektretmikrophon und Verfahren zu dessen Montage |
| GB1230404A (ru) * | 1967-05-15 | 1971-05-05 | ||
| FR2021232A1 (ru) * | 1968-10-22 | 1970-07-17 | Kureha Chemical Ind Co Ltd | |
| FR2067388A1 (ru) * | 1969-11-19 | 1971-08-20 | Pioneer Electronic Corp | |
| FR2100906A1 (ru) * | 1970-07-14 | 1972-03-24 | Pioneer Electronic Corp |
Also Published As
| Publication number | Publication date |
|---|---|
| CA989514A (en) | 1976-05-18 |
| NL7312472A (ru) | 1974-03-12 |
| US3894333A (en) | 1975-07-15 |
| DE2345285A1 (de) | 1974-03-21 |
| JPS49101017A (ru) | 1974-09-25 |
| FR2199242B1 (ru) | 1978-11-03 |
| GB1444763A (en) | 1976-08-04 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |