JPS5632839B1 - - Google Patents
Info
- Publication number
- JPS5632839B1 JPS5632839B1 JP1382871A JP1382871A JPS5632839B1 JP S5632839 B1 JPS5632839 B1 JP S5632839B1 JP 1382871 A JP1382871 A JP 1382871A JP 1382871 A JP1382871 A JP 1382871A JP S5632839 B1 JPS5632839 B1 JP S5632839B1
- 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 (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1382871A JPS5632839B1 (fr) | 1971-03-11 | 1971-03-11 | |
GB939772A GB1387453A (en) | 1971-03-11 | 1972-02-29 | Electrostatic electro-acoustic transducer |
US00230435A US3833770A (en) | 1971-03-11 | 1972-02-29 | Electrostatic acoustic transducer |
CA136,566A CA947856A (en) | 1971-03-11 | 1972-03-08 | Electrostatic acoustic transformer |
FR7208419A FR2186799B1 (fr) | 1971-03-11 | 1972-03-10 | |
DE19722211729 DE2211729A1 (de) | 1971-03-11 | 1972-03-10 | Elektrostatisch-akustischer Wandler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1382871A JPS5632839B1 (fr) | 1971-03-11 | 1971-03-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5632839B1 true JPS5632839B1 (fr) | 1981-07-30 |
Family
ID=11844119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1382871A Pending JPS5632839B1 (fr) | 1971-03-11 | 1971-03-11 |
Country Status (6)
Country | Link |
---|---|
US (1) | US3833770A (fr) |
JP (1) | JPS5632839B1 (fr) |
CA (1) | CA947856A (fr) |
DE (1) | DE2211729A1 (fr) |
FR (1) | FR2186799B1 (fr) |
GB (1) | GB1387453A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110996237A (zh) * | 2018-05-14 | 2020-04-10 | 董耀斌 | 一种电子发生器、一种净电荷发生装置及一种静电扬声器 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7313455A (nl) * | 1973-10-01 | 1975-04-03 | Philips Nv | Mikrofoon met elektrostatische capsule. |
US3921167A (en) * | 1974-06-14 | 1975-11-18 | Ibm | Capacitive circuitboard |
US4331840A (en) * | 1980-02-22 | 1982-05-25 | Lectret S.A. | Electret transducer with tapered acoustic chamber |
NL8004351A (nl) * | 1980-07-30 | 1982-03-01 | Philips Nv | Elektreetomzetter. |
JPH02149199A (ja) * | 1988-11-30 | 1990-06-07 | Matsushita Electric Ind Co Ltd | エレクトレットコンデンサマイクロホン |
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 |
US8184833B2 (en) * | 2007-12-14 | 2012-05-22 | Sony Ericsson Mobile Communications Ab | Electrostatic speaker arrangement for a mobile device |
US20100079379A1 (en) * | 2008-09-26 | 2010-04-01 | Sony Ericsson Mobile Communications Ab | Portable communication device having an electroluminescent driven haptic keypad |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3008013A (en) * | 1954-07-20 | 1961-11-07 | Ferranti Ltd | Electrostatic loudspeakers |
US3160715A (en) * | 1960-11-15 | 1964-12-08 | Gussing Nils Torsten Alson | Electrostatic loudspeakers |
US3118022A (en) * | 1961-08-07 | 1964-01-14 | Bell Telephone Labor Inc | Electroacoustic transducer |
FR1354631A (fr) * | 1962-05-22 | 1964-03-06 | Western Electric Co | Transducteur électroacoustique |
-
1971
- 1971-03-11 JP JP1382871A patent/JPS5632839B1/ja active Pending
-
1972
- 1972-02-29 GB GB939772A patent/GB1387453A/en not_active Expired
- 1972-02-29 US US00230435A patent/US3833770A/en not_active Expired - Lifetime
- 1972-03-08 CA CA136,566A patent/CA947856A/en not_active Expired
- 1972-03-10 DE DE19722211729 patent/DE2211729A1/de active Pending
- 1972-03-10 FR FR7208419A patent/FR2186799B1/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110996237A (zh) * | 2018-05-14 | 2020-04-10 | 董耀斌 | 一种电子发生器、一种净电荷发生装置及一种静电扬声器 |
Also Published As
Publication number | Publication date |
---|---|
US3833770A (en) | 1974-09-03 |
CA947856A (en) | 1974-05-21 |
FR2186799A1 (fr) | 1974-01-11 |
DE2211729A1 (de) | 1972-09-28 |
FR2186799B1 (fr) | 1975-03-07 |
GB1387453A (en) | 1975-03-19 |