IN164852B - - Google Patents
Info
- Publication number
- IN164852B IN164852B IN143/CAL/87A IN143CA1987A IN164852B IN 164852 B IN164852 B IN 164852B IN 143CA1987 A IN143CA1987 A IN 143CA1987A IN 164852 B IN164852 B IN 164852B
- Authority
- IN
- India
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
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Transducers For Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863609461 DE3609461A1 (de) | 1986-03-20 | 1986-03-20 | Elektroakustischer wandler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN164852B true IN164852B (pt) | 1989-06-17 |
Family
ID=6296885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN143/CAL/87A IN164852B (pt) | 1986-03-20 | 1987-02-25 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4779246A (pt) |
| JP (1) | JPS62227300A (pt) |
| DE (1) | DE3609461A1 (pt) |
| FR (1) | FR2596229A1 (pt) |
| IN (1) | IN164852B (pt) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4783821A (en) * | 1987-11-25 | 1988-11-08 | The Regents Of The University Of California | IC processed piezoelectric microphone |
| CN1015289B (zh) * | 1988-08-10 | 1992-01-01 | 西门子公司 | 电声转换器 |
| US4918672A (en) * | 1988-08-11 | 1990-04-17 | Niles Parts Co., Ltd. | Ultrasonic distance sensor |
| IT216578Z2 (it) * | 1989-05-15 | 1991-09-16 | Face Standard Ind | Capsula piezoceramica per apparecchi telefonici. |
| ES2069759T3 (es) * | 1990-05-14 | 1995-05-16 | Alcatel Dial Face Spa | Transductor piezoelectrico. |
| DE9114727U1 (de) * | 1991-11-27 | 1993-04-01 | Werma Signalgeräte GmbH, 7201 Rietheim-Weilheim | Piezoelektrischer Summer |
| SE506195C2 (sv) * | 1993-03-29 | 1997-11-17 | Goesta Lange | Hydrofonsystem för övervakning av ledningsnät |
| US5828768A (en) * | 1994-05-11 | 1998-10-27 | Noise Cancellation Technologies, Inc. | Multimedia personal computer with active noise reduction and piezo speakers |
| US5406161A (en) * | 1994-05-24 | 1995-04-11 | Industrial Technology Research Institute | Piezoelectric composite receiver |
| US5638456A (en) * | 1994-07-06 | 1997-06-10 | Noise Cancellation Technologies, Inc. | Piezo speaker and installation method for laptop personal computer and other multimedia applications |
| JP3301262B2 (ja) * | 1995-03-28 | 2002-07-15 | 松下電器産業株式会社 | 弾性表面波装置 |
| US5901231A (en) | 1995-09-25 | 1999-05-04 | Noise Cancellation Technologies, Inc. | Piezo speaker for improved passenger cabin audio systems |
| DE19538677C2 (de) * | 1995-10-17 | 1998-12-17 | Endress Hauser Gmbh Co | Anordnung zur Überwachung eines vorbestimmten Füllstands einer Flüssigkeit in einem Behälter |
| US5780958A (en) * | 1995-11-03 | 1998-07-14 | Aura Systems, Inc. | Piezoelectric vibrating device |
| US5838805A (en) * | 1995-11-06 | 1998-11-17 | Noise Cancellation Technologies, Inc. | Piezoelectric transducers |
| JP2947198B2 (ja) * | 1997-01-28 | 1999-09-13 | 日本電気株式会社 | 圧電トランス |
| WO1998058416A1 (en) | 1997-06-19 | 1998-12-23 | Nct Group, Inc. | Loudspeaker assembly |
| US6278790B1 (en) * | 1997-11-11 | 2001-08-21 | Nct Group, Inc. | Electroacoustic transducers comprising vibrating panels |
| US6181797B1 (en) | 1999-01-09 | 2001-01-30 | Noise Cancellation Technologies, Inc. | Piezo speaker for improved passenger cabin audio systems |
| US7247978B2 (en) * | 2004-12-14 | 2007-07-24 | Rakon Limited | Acceleration tolerant piezoelectric resonator |
| US8280080B2 (en) * | 2009-04-28 | 2012-10-02 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | Microcap acoustic transducer device |
| JP5377077B2 (ja) * | 2009-05-25 | 2013-12-25 | 株式会社オーディオテクニカ | コンデンサヘッドホンユニット |
| DK2263808T3 (da) * | 2009-06-19 | 2014-06-10 | Sonovia Holdings Llc | Dobbeltfrekvens-ultralydstransducer |
| GB2476244B (en) * | 2009-12-16 | 2013-04-03 | Rolls Royce Plc | A transducer assembly |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE759888A (fr) * | 1969-12-05 | 1971-06-04 | Siemens Ag | Transducteur electro-acoustique, notamment microphone pour installations telephoniques |
| IT1066823B (it) * | 1975-12-30 | 1985-03-12 | Sits Soc It Telecom Siemens | Trasduttore elettroacustico particolarmente del tipo a lamina piezoceramica |
| JPS5370784A (en) * | 1976-12-07 | 1978-06-23 | Seiko Instr & Electronics Ltd | Support structure of piezoelectric vibrator body |
| US4267479A (en) * | 1977-09-16 | 1981-05-12 | Citizen Watch Co., Ltd. | Mounting clips for thickness shear piezoelectric oscillator |
| US4379211A (en) * | 1980-10-14 | 1983-04-05 | Telephonics Corporation | Arcuately tensioned piezoelectric diaphragm microphone |
| US4431937A (en) * | 1981-10-26 | 1984-02-14 | Sfe Technologies | Piezoelectric crystal assembly including protective mounting and covering means |
| DE3212660A1 (de) * | 1982-04-05 | 1983-10-06 | Siemens Ag | Druckwandler |
| DE3402657A1 (de) * | 1984-01-26 | 1985-08-01 | Siemens AG, 1000 Berlin und 8000 München | Piezoelektrischer wandler |
| FR2562352B1 (fr) * | 1984-03-30 | 1989-10-20 | Cepe | Resonateur piezo-electrique |
| DE3504011A1 (de) * | 1985-02-06 | 1986-08-07 | Siemens AG, 1000 Berlin und 8000 München | Kontaktierung schwingender bauelemente mittels leitgummi |
-
1986
- 1986-03-20 DE DE19863609461 patent/DE3609461A1/de not_active Withdrawn
-
1987
- 1987-02-24 US US07/017,981 patent/US4779246A/en not_active Expired - Fee Related
- 1987-02-25 IN IN143/CAL/87A patent/IN164852B/en unknown
- 1987-03-12 FR FR8703393A patent/FR2596229A1/fr active Pending
- 1987-03-18 JP JP62061427A patent/JPS62227300A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US4779246A (en) | 1988-10-18 |
| FR2596229A1 (fr) | 1987-09-25 |
| JPS62227300A (ja) | 1987-10-06 |
| DE3609461A1 (de) | 1987-09-24 |