DE69525091D1 - Magnetsresistives Mikrophon und akustische Sensoreinrichtungen - Google Patents

Magnetsresistives Mikrophon und akustische Sensoreinrichtungen

Info

Publication number
DE69525091D1
DE69525091D1 DE69525091T DE69525091T DE69525091D1 DE 69525091 D1 DE69525091 D1 DE 69525091D1 DE 69525091 T DE69525091 T DE 69525091T DE 69525091 T DE69525091 T DE 69525091T DE 69525091 D1 DE69525091 D1 DE 69525091D1
Authority
DE
Germany
Prior art keywords
magnet
sensor devices
acoustic sensor
resistant microphone
microphone
Prior art date
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.)
Expired - Lifetime
Application number
DE69525091T
Other languages
English (en)
Inventor
Sungho Jin
Larry Allen Marcus
Mark Thomas Mccormack
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
AT&T Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AT&T Corp filed Critical AT&T Corp
Application granted granted Critical
Publication of DE69525091D1 publication Critical patent/DE69525091D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/02—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by magnetic means, e.g. reluctance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
DE69525091T 1994-03-30 1995-03-21 Magnetsresistives Mikrophon und akustische Sensoreinrichtungen Expired - Lifetime DE69525091D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/220,318 US5450372A (en) 1994-03-30 1994-03-30 Magnetoresistive microphone and acoustic sensing devices

Publications (1)

Publication Number Publication Date
DE69525091D1 true DE69525091D1 (de) 2002-03-14

Family

ID=22823077

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69525091T Expired - Lifetime DE69525091D1 (de) 1994-03-30 1995-03-21 Magnetsresistives Mikrophon und akustische Sensoreinrichtungen

Country Status (5)

Country Link
US (1) US5450372A (de)
EP (1) EP0675669B1 (de)
JP (1) JP3044178B2 (de)
KR (1) KR950035511A (de)
DE (1) DE69525091D1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5985356A (en) 1994-10-18 1999-11-16 The Regents Of The University Of California Combinatorial synthesis of novel materials
US5856008A (en) * 1997-06-05 1999-01-05 Lucent Technologies Inc. Article comprising magnetoresistive material
SG106612A1 (en) 2001-05-29 2004-10-29 Sony Electronics Singapore Pte A force sensing device
DE10354281B4 (de) * 2003-11-20 2012-10-25 Marco Systemanalyse Und Entwicklung Gmbh Sensor
IT1395564B1 (it) * 2009-09-01 2012-10-16 Bianchelli Dispositivo multifunzione per uso domestico e/o commerciale
JP5429013B2 (ja) * 2010-04-12 2014-02-26 ヤマハ株式会社 物理量センサ及びマイクロフォン
RU2535646C2 (ru) * 2013-05-13 2014-12-20 Общество с ограниченной ответственностью "Наноэлектронные системы" Вибродатчик
CN104219613B (zh) * 2014-03-20 2017-11-10 江苏多维科技有限公司 一种磁电阻音频采集器
JP6745774B2 (ja) * 2017-09-20 2020-08-26 株式会社東芝 センサ及び電子機器
CN108924720B (zh) * 2018-06-25 2020-07-24 歌尔股份有限公司 Mems麦克风
CN109275080B (zh) * 2018-08-06 2020-07-24 歌尔股份有限公司 一种传感器
CN109211281B (zh) * 2018-08-06 2019-10-22 歌尔股份有限公司 一种传感器
CN110455401B (zh) * 2019-08-28 2021-10-19 江苏多维科技有限公司 一种高灵敏度磁阻声波传感器及阵列装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967368A (en) * 1972-10-11 1976-07-06 International Business Machines Corporation Method for manufacturing and using an internally biased magnetoresistive magnetic transducer
JPS6160135U (de) * 1984-09-27 1986-04-23
AU569828B2 (en) * 1986-04-17 1988-02-18 Nihon Radiator Co., Ltd. Pressure transducer
US4745812A (en) * 1987-03-25 1988-05-24 The United States Of America As Represented By The Secretary Of The Army Triaxial tactile sensor
JPH04290979A (ja) * 1991-03-20 1992-10-15 Hitachi Ltd 磁気センサ、磁気センサを持つ位置検出装置および磁気センサを利用したトルク検出装置、モータ制御装置、あるいはこのトルク検出装置を有する電動パワーステアリング装置
JP3088519B2 (ja) * 1991-10-23 2000-09-18 財団法人生産開発科学研究所 磁気抵抗効果素子
US5208789A (en) * 1992-04-13 1993-05-04 Lectret S. A. Condenser microphones based on silicon with humidity resistant surface treatment

Also Published As

Publication number Publication date
JPH0884398A (ja) 1996-03-26
EP0675669B1 (de) 2002-01-23
JP3044178B2 (ja) 2000-05-22
US5450372A (en) 1995-09-12
KR950035511A (ko) 1995-12-30
EP0675669A1 (de) 1995-10-04

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Legal Events

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