JPS4815867B1 - - Google Patents
Info
- Publication number
- JPS4815867B1 JPS4815867B1 JP44067613A JP6761369A JPS4815867B1 JP S4815867 B1 JPS4815867 B1 JP S4815867B1 JP 44067613 A JP44067613 A JP 44067613A JP 6761369 A JP6761369 A JP 6761369A JP S4815867 B1 JPS4815867 B1 JP S4815867B1
- Authority
- JP
- Japan
- 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.)
- Pending
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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP44067613A JPS4815867B1 (et) | 1969-08-28 | 1969-08-28 | |
| ZA705815A ZA705815B (en) | 1969-08-28 | 1970-08-24 | An electrostatic electroacoustic transducer |
| US67187A US3646280A (en) | 1969-08-28 | 1970-08-26 | Backplate for electret loudspeaker |
| CA091665A CA933277A (en) | 1969-08-28 | 1970-08-26 | Electrostatic electroacoustic transducer |
| DE19702042351 DE2042351C (de) | 1969-08-28 | 1970-08-26 | Elektrostatischer elektroakustischer Wandler |
| GB4134270A GB1318734A (en) | 1969-08-28 | 1970-08-27 | Electrostatic electroacoustic transducer |
| FR7031537A FR2059726B1 (et) | 1969-08-28 | 1970-08-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP44067613A JPS4815867B1 (et) | 1969-08-28 | 1969-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4815867B1 true JPS4815867B1 (et) | 1973-05-17 |
Family
ID=13349963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP44067613A Pending JPS4815867B1 (et) | 1969-08-28 | 1969-08-28 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3646280A (et) |
| JP (1) | JPS4815867B1 (et) |
| CA (1) | CA933277A (et) |
| FR (1) | FR2059726B1 (et) |
| GB (1) | GB1318734A (et) |
| ZA (1) | ZA705815B (et) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4840084B1 (et) * | 1969-11-19 | 1973-11-28 | ||
| US3787642A (en) * | 1971-09-27 | 1974-01-22 | Gte Automatic Electric Lab Inc | Electrostatic transducer having resilient electrode |
| JPS5221364B2 (et) * | 1971-11-04 | 1977-06-10 | ||
| CA989514A (en) * | 1972-09-08 | 1976-05-18 | Loh-Yi Chang | Electromechanical transducer and method of making same |
| DE2330800C3 (de) * | 1973-06-16 | 1981-10-01 | Sennheiser Electronic Kg, 3002 Wedemark | Elektroakustischer Wandler nach dem elektrostatischen Prinzip und Verfahren zu dessen Herstellung |
| US3896274A (en) * | 1973-10-04 | 1975-07-22 | Thermo Electron Corp | Electret earphone |
| JP4103877B2 (ja) * | 2004-09-22 | 2008-06-18 | セイコーエプソン株式会社 | 静電型超音波トランスデューサ及び超音波スピーカ |
| DE102007014577A1 (de) * | 2007-03-23 | 2008-09-25 | Sennheiser Electronic Gmbh & Co. Kg | Kapazitiver Aufnahmewandler und Mikrofon |
| US8559660B2 (en) * | 2007-07-12 | 2013-10-15 | Industrial Technology Research Institute | Electrostatic electroacoustic transducers |
| TWI343756B (en) * | 2009-08-10 | 2011-06-11 | Ind Tech Res Inst | Flat loudspeaker structure |
| JP5262288B2 (ja) * | 2007-09-27 | 2013-08-14 | ヤマハ株式会社 | 静電型スピーカ |
| US8300858B2 (en) | 2007-09-27 | 2012-10-30 | Yamaha Corporation | Electrostatic speaker |
| TWI419577B (zh) * | 2009-12-23 | 2013-12-11 | Ind Tech Res Inst | 揚聲器的製造方法與裝置 |
| TWM395976U (en) * | 2010-06-30 | 2011-01-01 | Tsung-Hung Wu | Electret electroacoustic transducer |
| TW201204062A (en) * | 2010-07-15 | 2012-01-16 | Taiwan Electrets Electronics Co Ltd | Electrostatic speaker and manufacturing method thereof and conducting plate of the speaker |
| WO2014100012A1 (en) | 2012-12-20 | 2014-06-26 | The Regents Of The University Of California | Electrostatic graphene speaker |
| US9179221B2 (en) * | 2013-07-18 | 2015-11-03 | Infineon Technologies Ag | MEMS devices, interface circuits, and methods of making thereof |
| JP7370039B2 (ja) * | 2019-07-12 | 2023-10-27 | 国立研究開発法人産業技術総合研究所 | 音圧－電気信号変換装置及びその変換方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1469120A (fr) * | 1964-12-28 | 1967-02-10 | Matsushita Electric Ind Co Ltd | Microphone à condensateur |
| US3373251A (en) * | 1965-02-23 | 1968-03-12 | Shure Bros | Electrostatic transducer |
-
1969
- 1969-08-28 JP JP44067613A patent/JPS4815867B1/ja active Pending
-
1970
- 1970-08-24 ZA ZA705815A patent/ZA705815B/xx unknown
- 1970-08-26 CA CA091665A patent/CA933277A/en not_active Expired
- 1970-08-26 US US67187A patent/US3646280A/en not_active Expired - Lifetime
- 1970-08-27 GB GB4134270A patent/GB1318734A/en not_active Expired
- 1970-08-28 FR FR7031537A patent/FR2059726B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2042351B2 (de) | 1972-07-27 |
| FR2059726B1 (et) | 1974-04-26 |
| ZA705815B (en) | 1971-04-28 |
| DE2042351A1 (de) | 1972-03-02 |
| US3646280A (en) | 1972-02-29 |
| FR2059726A1 (et) | 1971-06-04 |
| CA933277A (en) | 1973-09-04 |
| GB1318734A (en) | 1973-05-31 |