FR2100906A1 - - Google Patents
Info
- Publication number
- FR2100906A1 FR2100906A1 FR7125768A FR7125768A FR2100906A1 FR 2100906 A1 FR2100906 A1 FR 2100906A1 FR 7125768 A FR7125768 A FR 7125768A FR 7125768 A FR7125768 A FR 7125768A FR 2100906 A1 FR2100906 A1 FR 2100906A1
- 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
-
- 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
- H04R19/02—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1970069759U JPS4912598Y1 (US07488766-20090210-C00029.png) | 1970-07-14 | 1970-07-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2100906A1 true FR2100906A1 (US07488766-20090210-C00029.png) | 1972-03-24 |
| FR2100906B1 FR2100906B1 (US07488766-20090210-C00029.png) | 1975-10-10 |
Family
ID=13412034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7125768A Expired FR2100906B1 (US07488766-20090210-C00029.png) | 1970-07-14 | 1971-07-13 |
Country Status (6)
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2199242A1 (US07488766-20090210-C00029.png) * | 1972-09-08 | 1974-04-05 | Uniroyal Ltd | |
| WO1995014362A1 (de) * | 1993-11-14 | 1995-05-26 | Koenig Florian Meinhard | Mehrkanalkopfhörer mit gesteuerter abstrahlcharakteristik |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3980838A (en) * | 1974-02-20 | 1976-09-14 | Tokyo Shibaura Electric Co., Ltd. | Plural electret electroacoustic transducer |
| US3894243A (en) * | 1974-06-06 | 1975-07-08 | Us Navy | Polymeric transducer array |
| US3970862A (en) * | 1974-06-25 | 1976-07-20 | The United States Of America As Represented By The Secretary Of The Navy | Polymeric sensor of vibration and dynamic pressure |
| CA1025994A (en) * | 1975-07-08 | 1978-02-07 | Uniroyal Ltd. | Electromechanical transducer |
| US4379951A (en) * | 1977-04-20 | 1983-04-12 | Gabr Saad Z M | Electro-acoustic transducer means |
| NL7802688A (nl) * | 1978-03-13 | 1979-09-17 | Philips Nv | Inrichting voor het omzetten van akoestische in elektrische trillingen en omgekeerd, voor- zien van tenminste een kondensator elektreet- element aangesloten op een elektronische schakeling. |
| US4207442A (en) * | 1978-05-15 | 1980-06-10 | Freeman Miller L | Driver circuit for electrostatic transducers |
| DE3003178C2 (de) * | 1980-01-30 | 1983-08-04 | Sennheiser Electronic Kg, 3002 Wedemark | Elektroakustischer Wandler nach dem elektrostatischem Prinzip |
| CH642504A5 (en) * | 1981-06-01 | 1984-04-13 | Asulab Sa | Hybrid electroacoustic transducer |
| DK572483A (da) * | 1983-08-19 | 1985-02-20 | Lectret Sa | Akustisk transor og fremgangsmaade til fremstilling af denne |
| US4872148A (en) * | 1984-03-08 | 1989-10-03 | Polaroid Corporation | Ultrasonic transducer for use in a corrosive/abrasive environment |
| US5054081B1 (en) * | 1985-04-02 | 1994-06-28 | Roger A West | Electrostatic transducer with improved bass response utilizing distributed bass resonance energy |
| CA1284837C (en) * | 1987-06-18 | 1991-06-11 | Highwood Audio Inc. | Audio transducer |
| US20060082158A1 (en) * | 2004-10-15 | 2006-04-20 | Schrader Jeffrey L | Method and device for supplying power from acoustic energy |
| TWM344699U (en) * | 2008-05-08 | 2008-11-11 | Jetvox Acoustic Corp | Dual band coaxial earphone |
| US8855350B2 (en) * | 2009-04-28 | 2014-10-07 | Cochlear Limited | Patterned implantable electret microphone |
| WO2011123552A1 (en) * | 2010-03-30 | 2011-10-06 | Otologics, Llc | Low noise electret microphone |
| TWI483623B (zh) * | 2012-09-14 | 2015-05-01 | Fortune Grand Technology Inc | 揚聲器單體 |
| CN106028228B (zh) * | 2016-07-25 | 2021-06-11 | 山东共达电声股份有限公司 | 一种振膜及具有该振膜的音响设备 |
| USD1000422S1 (en) * | 2021-04-14 | 2023-10-03 | Crestron Electronics, Inc. | Loudspeaker grille |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR34837E (US07488766-20090210-C00029.png) * | 1927-10-21 | |||
| DE494221C (de) * | 1926-06-05 | 1930-03-20 | Vogt Hans | Einrichtung zur Umsetzung akustischer Schwingungen in elektrische und umgekehrt vermittels elektrostatischer Felder |
-
1970
- 1970-07-14 JP JP1970069759U patent/JPS4912598Y1/ja not_active Expired
-
1971
- 1971-07-12 DE DE2134706A patent/DE2134706B2/de not_active Ceased
- 1971-07-13 CA CA118,040A patent/CA953017A/en not_active Expired
- 1971-07-13 FR FR7125768A patent/FR2100906B1/fr not_active Expired
- 1971-07-14 GB GB3313871A patent/GB1352407A/en not_active Expired
-
1973
- 1973-06-26 US US00373816A patent/US3821492A/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR34837E (US07488766-20090210-C00029.png) * | 1927-10-21 | |||
| DE494221C (de) * | 1926-06-05 | 1930-03-20 | Vogt Hans | Einrichtung zur Umsetzung akustischer Schwingungen in elektrische und umgekehrt vermittels elektrostatischer Felder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2199242A1 (US07488766-20090210-C00029.png) * | 1972-09-08 | 1974-04-05 | Uniroyal Ltd | |
| WO1995014362A1 (de) * | 1993-11-14 | 1995-05-26 | Koenig Florian Meinhard | Mehrkanalkopfhörer mit gesteuerter abstrahlcharakteristik |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2134706B2 (de) | 1974-04-18 |
| JPS4912598Y1 (US07488766-20090210-C00029.png) | 1974-03-28 |
| GB1352407A (en) | 1974-05-08 |
| DE2134706A1 (de) | 1972-01-20 |
| US3821492A (en) | 1974-06-28 |
| CA953017A (en) | 1974-08-13 |
| FR2100906B1 (US07488766-20090210-C00029.png) | 1975-10-10 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |