NL281794A - - Google Patents
Info
- Publication number
- NL281794A NL281794A NL281794DA NL281794A NL 281794 A NL281794 A NL 281794A NL 281794D A NL281794D A NL 281794DA NL 281794 A NL281794 A NL 281794A
- Authority
- NL
- Netherlands
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
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 |
|---|---|---|---|
| US129629A US3118979A (en) | 1961-08-07 | 1961-08-07 | Electrostatic transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL281794A true NL281794A (en) |
Family
ID=22440870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL281794D NL281794A (en) | 1961-08-07 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3118979A (en) |
| DE (1) | DE1190040B (en) |
| GB (1) | GB1014781A (en) |
| NL (1) | NL281794A (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3300585A (en) * | 1963-09-04 | 1967-01-24 | Northern Electric Co | Self-polarized electrostatic microphone-semiconductor amplifier combination |
| DE1437420C3 (en) * | 1964-07-21 | 1978-06-22 | Elly 1000 Berlin Neumann Geb. Kosak | Directional condenser microphone capsule |
| US3736436A (en) * | 1971-11-04 | 1973-05-29 | Mc Donnell Douglas Corp | Electret pressure transducer |
| US3868624A (en) * | 1972-12-29 | 1975-02-25 | Us Navy | Apparatus for mapping acoustic fields |
| US3980838A (en) * | 1974-02-20 | 1976-09-14 | Tokyo Shibaura Electric Co., Ltd. | Plural electret electroacoustic transducer |
| US4081626A (en) * | 1976-11-12 | 1978-03-28 | Polaroid Corporation | Electrostatic transducer having narrowed directional characteristic |
| US4204244A (en) * | 1978-01-23 | 1980-05-20 | Motorola, Inc. | Electromechanical pressure transducer |
| US4178621A (en) * | 1978-01-23 | 1979-12-11 | Motorola, Inc. | Electromechanical pressure transducer |
| US4160882A (en) * | 1978-03-13 | 1979-07-10 | Driver Michael L | Double diaphragm electrostatic transducer each diaphragm comprising two plastic sheets having different charge carrying characteristics |
| US4598590A (en) * | 1984-09-14 | 1986-07-08 | At&T Bell Laboratories | Electret transducer for blood pressure measurement |
| CA1277415C (en) * | 1986-04-11 | 1990-12-04 | Lorne A. Whitehead | Elastomer membrane enhanced electrostatic transducer |
| US5450498A (en) * | 1993-07-14 | 1995-09-12 | The University Of British Columbia | High pressure low impedance electrostatic transducer |
| US5395592A (en) * | 1993-10-04 | 1995-03-07 | Bolleman; Brent | Acoustic liquid processing device |
| US10687148B2 (en) * | 2016-01-28 | 2020-06-16 | Sonion Nederland B.V. | Assembly comprising an electrostatic sound generator and a transformer |
| CN109819379A (en) * | 2018-12-29 | 2019-05-28 | 瑞声科技（南京）有限公司 | Vibrating diaphragm and microphone device |
| CN212344045U (en) * | 2020-06-30 | 2021-01-12 | 歌尔股份有限公司 | Vibrating diaphragm and sound production device using same |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE350499C (en) * | 1922-03-21 | Joseph Engl Dr | Electrostatic telephone | |
| US1777170A (en) * | 1928-03-12 | 1930-09-30 | United Reproducers Patents Cor | Acoustic device |
| US1767657A (en) * | 1929-08-09 | 1930-06-24 | Ephraim Banning | Capacity reproducer |
| US1826952A (en) * | 1929-10-21 | 1931-10-13 | Ephraim Banning | Acoustic condenser diaphragm |
| US1975801A (en) * | 1930-12-15 | 1934-10-09 | Sound Lab Corp Ltd | Microphone |
| US2009520A (en) * | 1933-06-29 | 1935-07-30 | Reisz Eugen | Electroacoustic device |
| DE884516C (en) * | 1940-12-09 | 1953-07-27 | Siemens Ag | Electrostatic microphone |
| DE892773C (en) * | 1941-04-17 | 1953-10-12 | Siemens Ag | Condenser microphone |
| DE864696C (en) * | 1942-04-01 | 1953-01-26 | Telefunken Gmbh | Condenser microphone |
| US2944119A (en) * | 1957-12-20 | 1960-07-05 | Philco Corp | Transducers |
| US3041418A (en) * | 1960-01-14 | 1962-06-26 | Rca Corp | Transducers |
-
0
- NL NL281794D patent/NL281794A/xx unknown
-
1961
- 1961-08-07 US US129629A patent/US3118979A/en not_active Expired - Lifetime
-
1962
- 1962-07-31 DE DEW32709A patent/DE1190040B/en active Pending
- 1962-08-02 GB GB29679/62A patent/GB1014781A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1190040B (en) | 1965-04-01 |
| US3118979A (en) | 1964-01-21 |
| GB1014781A (en) | 1965-12-31 |