GB1318734A - Electrostatic electroacoustic transducer - Google Patents
Electrostatic electroacoustic transducerInfo
- Publication number
- GB1318734A GB1318734A GB4134270A GB4134270A GB1318734A GB 1318734 A GB1318734 A GB 1318734A GB 4134270 A GB4134270 A GB 4134270A GB 4134270 A GB4134270 A GB 4134270A GB 1318734 A GB1318734 A GB 1318734A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fibres
- perforated
- pressure
- electret
- aug
- 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
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP44067613A JPS4815867B1 (fr) | 1969-08-28 | 1969-08-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1318734A true GB1318734A (en) | 1973-05-31 |
Family
ID=13349963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4134270A Expired GB1318734A (en) | 1969-08-28 | 1970-08-27 | Electrostatic electroacoustic transducer |
Country Status (6)
Country | Link |
---|---|
US (1) | US3646280A (fr) |
JP (1) | JPS4815867B1 (fr) |
CA (1) | CA933277A (fr) |
FR (1) | FR2059726B1 (fr) |
GB (1) | GB1318734A (fr) |
ZA (1) | ZA705815B (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2330800A1 (de) * | 1973-06-16 | 1975-01-09 | Sennheiser Electronic | Elektroakustischer wandler nach dem elektrostatischen prinzip und verfahren zu dessen herstellung |
US8300858B2 (en) | 2007-09-27 | 2012-10-30 | Yamaha Corporation | Electrostatic speaker |
TWI499313B (zh) * | 2007-09-27 | 2015-09-01 | Yamaha Corp | 靜電擴音器 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4840084B1 (fr) * | 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 (fr) * | 1971-11-04 | 1977-06-10 | ||
CA989514A (en) * | 1972-09-08 | 1976-05-18 | Loh-Yi Chang | Electromechanical transducer and method of making same |
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 |
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 (fr) | 2012-12-20 | 2014-06-26 | The Regents Of The University Of California | Haut-parleur en graphène électrostatique |
US9179221B2 (en) * | 2013-07-18 | 2015-11-03 | Infineon Technologies Ag | MEMS devices, interface circuits, and methods of making thereof |
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 US US67187A patent/US3646280A/en not_active Expired - Lifetime
- 1970-08-26 CA CA091665A patent/CA933277A/en not_active Expired
- 1970-08-27 GB GB4134270A patent/GB1318734A/en not_active Expired
- 1970-08-28 FR FR7031537A patent/FR2059726B1/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2330800A1 (de) * | 1973-06-16 | 1975-01-09 | Sennheiser Electronic | Elektroakustischer wandler nach dem elektrostatischen prinzip und verfahren zu dessen herstellung |
US8300858B2 (en) | 2007-09-27 | 2012-10-30 | Yamaha Corporation | Electrostatic speaker |
TWI499313B (zh) * | 2007-09-27 | 2015-09-01 | Yamaha Corp | 靜電擴音器 |
Also Published As
Publication number | Publication date |
---|---|
ZA705815B (en) | 1971-04-28 |
JPS4815867B1 (fr) | 1973-05-17 |
DE2042351B2 (de) | 1972-07-27 |
US3646280A (en) | 1972-02-29 |
FR2059726A1 (fr) | 1971-06-04 |
FR2059726B1 (fr) | 1974-04-26 |
DE2042351A1 (de) | 1972-03-02 |
CA933277A (en) | 1973-09-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |