IN150914B - - Google Patents
Info
- Publication number
- IN150914B IN150914B IN656/CAL/79A IN656CA1979A IN150914B IN 150914 B IN150914 B IN 150914B IN 656CA1979 A IN656CA1979 A IN 656CA1979A IN 150914 B IN150914 B IN 150914B
- 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
- H04R17/02—Microphones
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2831411A DE2831411C2 (de) | 1978-07-17 | 1978-07-17 | Elektroakustischer Wandler mit mit piezoelektrischer Schicht versehener Membran |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN150914B true IN150914B (US07923587-20110412-C00001.png) | 1983-01-15 |
Family
ID=6044619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN656/CAL/79A IN150914B (US07923587-20110412-C00001.png) | 1978-07-17 | 1979-06-27 |
Country Status (11)
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3007834A1 (de) * | 1980-02-29 | 1981-09-17 | Siemens AG, 1000 Berlin und 8000 München | Elektroakustischer wandler |
| DE3007773A1 (de) * | 1980-02-29 | 1981-09-17 | Siemens AG, 1000 Berlin und 8000 München | Elektroakustischer wandler |
| DE3007808A1 (de) * | 1980-02-29 | 1981-09-10 | Siemens AG, 1000 Berlin und 8000 München | Elektroakustischer wandler |
| DE3107344A1 (de) * | 1981-02-26 | 1982-11-18 | Siemens AG, 1000 Berlin und 8000 München | Anordnung zur frequenzgangverbesserung von elektroakustischen wandlern |
| DE3127406C2 (de) * | 1981-07-10 | 1986-03-27 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Modulationsvorrichtung zur optischen Signalübertragung |
| US4607186A (en) * | 1981-11-17 | 1986-08-19 | Matsushita Electric Industrial Co. Ltd. | Ultrasonic transducer with a piezoelectric element |
| US4418248A (en) * | 1981-12-11 | 1983-11-29 | Koss Corporation | Dual element headphone |
| US4413198A (en) * | 1981-12-30 | 1983-11-01 | Motorola, Inc. | Piezoelectric transducer apparatus |
| EP0085194A1 (en) * | 1982-01-19 | 1983-08-10 | Hugo R. Michiels | Electro-acoustical converter |
| FR2542552B1 (fr) * | 1983-03-07 | 1986-04-11 | Thomson Csf | Transducteur electroacoustique a diaphragme piezo-electrique |
| CA1202713A (en) * | 1984-03-16 | 1986-04-01 | Beverley W. Gumb | Transmitter assembly for a telephone handset |
| ATE28715T1 (de) * | 1984-04-11 | 1987-08-15 | Siemens Ag | Piezoelektrisch-akustischer wandler fuer elektroakustische kapseln mit konstruktionsausfuehrung fuer die montage. |
| EP0182822A1 (de) * | 1984-06-12 | 1986-06-04 | WOLF, Ottokar John | Telefonhygiene |
| GB2164819B (en) * | 1984-09-19 | 1988-09-28 | Gibson Dawson Joseph | Microphone |
| DE3518819A1 (de) * | 1985-05-24 | 1986-11-27 | Siemens AG, 1000 Berlin und 8000 München | Elektroakustischer wandler |
| DE3602351C1 (de) * | 1986-01-27 | 1986-12-11 | Endress + Hauser GmbH + Co., 79689 Maulburg | Schallwandlersystem |
| JPS63143621U (US07923587-20110412-C00001.png) * | 1987-03-12 | 1988-09-21 | ||
| JPS6427322U (US07923587-20110412-C00001.png) * | 1987-08-11 | 1989-02-16 | ||
| US4918738A (en) * | 1988-12-05 | 1990-04-17 | Federal Signal Corporation | Structural assembly for housing an acoustical system |
| JPH0727715Y2 (ja) * | 1989-02-06 | 1995-06-21 | 株式会社東芝 | ハンドセット |
| WO2002052894A1 (en) * | 2000-12-22 | 2002-07-04 | Brüel & Kjær Sound & Vibration Measurement A/S | A micromachined capacitive transducer |
| JP4540659B2 (ja) * | 2006-12-19 | 2010-09-08 | 岩崎通信機株式会社 | 送話器 |
| US20150139457A1 (en) * | 2012-06-06 | 2015-05-21 | Nec Casio Mobile Communications, Ltd. | Speaker device and electronic device |
| EP3169082A1 (en) * | 2015-10-20 | 2017-05-17 | Sonion Nederland B.V. | Microphone assembly with suppressed frequency response |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1069685B (de) * | 1959-11-26 | Wien Dipl.-Ing. Dr. techn. Walter Fiala | Elektroakustischer W'andler mit Reibungshemmung | |
| NL78163C (US07923587-20110412-C00001.png) * | 1950-05-11 | |||
| DE1076182B (de) * | 1957-02-21 | 1960-02-25 | F & H Schumann G M B H | Filteranordnung fuer elektro-akustische Wandler |
| DE1288146B (de) * | 1962-10-31 | 1969-01-30 | Siemens Ag | Elektroakustischer Wandler |
| DE1462228B2 (de) * | 1965-09-30 | 1971-12-09 | Siemens AG, 1000 Berlin u. 8000 München | Mikrofon mit vormembran |
| BE759888A (fr) * | 1969-12-05 | 1971-06-04 | Siemens Ag | Transducteur electro-acoustique, notamment microphone pour installations telephoniques |
| US3708702A (en) * | 1970-12-02 | 1973-01-02 | Siemens Ag | Electroacoustic transducer |
| ZA728218B (en) * | 1971-11-23 | 1973-07-25 | Plessey Ducon Ltd | Microphone damping |
| CH528197A (de) * | 1971-12-20 | 1972-09-15 | Ibm | Gehäuseanordnung mit einem elektro-akustischen Wandler, und Verwendung derselben in einem Telefonapparat einer Nachrichtenübertragungsanlage mit PCM-Codierung |
-
1978
- 1978-07-17 DE DE2831411A patent/DE2831411C2/de not_active Expired
-
1979
- 1979-06-19 AT AT79102027T patent/ATE1659T1/de not_active IP Right Cessation
- 1979-06-19 EP EP79102027A patent/EP0007436B1/de not_active Expired
- 1979-06-27 IN IN656/CAL/79A patent/IN150914B/en unknown
- 1979-07-03 US US06/054,408 patent/US4292561A/en not_active Expired - Lifetime
- 1979-07-11 GB GB7924086A patent/GB2025734B/en not_active Expired
- 1979-07-16 BR BR7904532A patent/BR7904532A/pt unknown
- 1979-07-16 ZA ZA00793580A patent/ZA793580B/xx unknown
- 1979-07-16 JP JP54089381A patent/JPS596119B2/ja not_active Expired
- 1979-07-16 AR AR277317A patent/AR216604A1/es active
- 1979-07-16 AU AU48931/79A patent/AU524112B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| BR7904532A (pt) | 1980-04-08 |
| DE2831411C2 (de) | 1983-10-06 |
| GB2025734B (en) | 1982-11-24 |
| US4292561A (en) | 1981-09-29 |
| JPS5514800A (en) | 1980-02-01 |
| ZA793580B (en) | 1980-06-25 |
| DE2831411A1 (de) | 1980-01-31 |
| EP0007436B1 (de) | 1982-10-13 |
| AU524112B2 (en) | 1982-09-02 |
| GB2025734A (en) | 1980-01-23 |
| AU4893179A (en) | 1980-01-24 |
| AR216604A1 (es) | 1979-12-28 |
| JPS596119B2 (ja) | 1984-02-09 |
| EP0007436A1 (de) | 1980-02-06 |
| ATE1659T1 (de) | 1982-10-15 |
