DE69933065D1 - Magnetpolunempfindlicher Schalter - Google Patents

Magnetpolunempfindlicher Schalter

Info

Publication number
DE69933065D1
DE69933065D1 DE69933065T DE69933065T DE69933065D1 DE 69933065 D1 DE69933065 D1 DE 69933065D1 DE 69933065 T DE69933065 T DE 69933065T DE 69933065 T DE69933065 T DE 69933065T DE 69933065 D1 DE69933065 D1 DE 69933065D1
Authority
DE
Germany
Prior art keywords
magnetic pole
switch
hall effect
effect sensor
pole insensitive
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
DE69933065T
Other languages
English (en)
Other versions
DE69933065T2 (de
Inventor
Alberto Bilotti
Glenn A Forrest
Ravi Vig
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.)
Allegro Microsystems Inc
Original Assignee
Allegro Microsystems Inc
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 Allegro Microsystems Inc filed Critical Allegro Microsystems Inc
Application granted granted Critical
Publication of DE69933065D1 publication Critical patent/DE69933065D1/de
Publication of DE69933065T2 publication Critical patent/DE69933065T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/95—Proximity switches using a magnetic detector
    • H03K17/9517—Proximity switches using a magnetic detector using galvanomagnetic devices

Landscapes

  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Electronic Switches (AREA)
  • Hall/Mr Elements (AREA)
  • Measuring Magnetic Variables (AREA)
  • Keying Circuit Devices (AREA)
  • Transceivers (AREA)
  • Telephone Set Structure (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
DE69933065T 1998-09-18 1999-09-03 Magnetpolunempfindlicher Schalter Expired - Lifetime DE69933065T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US15693998A 1998-09-18 1998-09-18
US156939 1998-09-18
US09/338,668 US6356741B1 (en) 1998-09-18 1999-06-22 Magnetic pole insensitive switch circuit
US338668 1999-06-22

Publications (2)

Publication Number Publication Date
DE69933065D1 true DE69933065D1 (de) 2006-10-12
DE69933065T2 DE69933065T2 (de) 2007-08-16

Family

ID=26853668

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69918839T Expired - Lifetime DE69918839T2 (de) 1998-09-18 1999-09-03 Magnetpolunempfindlicher schalterkreis
DE69933065T Expired - Lifetime DE69933065T2 (de) 1998-09-18 1999-09-03 Magnetpolunempfindlicher Schalter

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69918839T Expired - Lifetime DE69918839T2 (de) 1998-09-18 1999-09-03 Magnetpolunempfindlicher schalterkreis

Country Status (9)

Country Link
US (4) US6356741B1 (de)
EP (2) EP1112583B1 (de)
JP (1) JP3693918B2 (de)
KR (1) KR100429344B1 (de)
AT (2) ATE338339T1 (de)
CA (1) CA2343409C (de)
DE (2) DE69918839T2 (de)
MX (1) MXPA01002613A (de)
WO (1) WO2000017901A1 (de)

Families Citing this family (121)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6356741B1 (en) * 1998-09-18 2002-03-12 Allegro Microsystems, Inc. Magnetic pole insensitive switch circuit
ATE349680T1 (de) 1999-09-17 2007-01-15 Melexis Nv Multimedialer hall-effekt sensor
KR20010055059A (ko) * 1999-12-09 2001-07-02 윤종용 무선 단말기의 홀 스위치
US7248713B2 (en) 2000-09-11 2007-07-24 Micro Bar Technology, Inc. Integrated automatic telephone switch
US6760457B1 (en) 2000-09-11 2004-07-06 Micro Ear Technology, Inc. Automatic telephone switch for hearing aid
KR100350504B1 (ko) * 2000-10-31 2002-08-28 삼성전자 주식회사 접이형 휴대용 무선단말기에서의 파워 제어 장치
TW481397U (en) * 2000-11-21 2002-03-21 Hon Hai Prec Ind Co Ltd Device with automatically opened lid
GB2371022B (en) * 2000-12-29 2005-01-12 Nokia Mobile Phones Ltd A portable communication device
JP4304871B2 (ja) * 2001-02-28 2009-07-29 日本電気株式会社 携帯電話機
US6906511B2 (en) * 2001-05-08 2005-06-14 Analog Devices, Inc. Magnetic position detection for micro machined optical element
JP2003204383A (ja) * 2001-10-26 2003-07-18 Nec Corp 携帯電話機
JP2003188949A (ja) * 2001-12-21 2003-07-04 Nec Corp 携帯電話装置及びそのデータ保護方法とプログラム
KR100442625B1 (ko) * 2002-04-11 2004-08-02 삼성전자주식회사 단말기의 플립 또는 폴더의 개폐 인식에 이용되는 홀이펙트 스위치의 오동작을 처리하는 회로 및 방법
US20050007094A1 (en) * 2002-08-13 2005-01-13 Hill John P. Two wire hall device output detection circuit
US7447325B2 (en) * 2002-09-12 2008-11-04 Micro Ear Technology, Inc. System and method for selectively coupling hearing aids to electromagnetic signals
US7369671B2 (en) * 2002-09-16 2008-05-06 Starkey, Laboratories, Inc. Switching structures for hearing aid
US8284970B2 (en) 2002-09-16 2012-10-09 Starkey Laboratories Inc. Switching structures for hearing aid
US20040056651A1 (en) * 2002-09-19 2004-03-25 Daniele Marietta Bersana System for detecting a flip-lid position of a personal electronic device
JP3811454B2 (ja) * 2003-01-29 2006-08-23 インターナショナル・ビジネス・マシーンズ・コーポレーション 近接検出装置、ポータブルコンピュータ、近接検出方法、及びプログラム
JP2004310659A (ja) * 2003-04-10 2004-11-04 Matsushita Electric Ind Co Ltd 情報処理装置
WO2005090639A2 (en) * 2004-03-17 2005-09-29 Kennecott Utah Copper Corporation Monitoring electrolytic cell currents
DE102004029941B3 (de) * 2004-06-21 2005-12-15 Infineon Technologies Ag System zur Auswertung eines Sensorsignals
US7471967B2 (en) * 2004-10-26 2008-12-30 Pantech Co., Ltd. Wireless communication terminal with an opening/closing sensing function using a plurality of magnetic pole sensors and method therefor
JP4779342B2 (ja) * 2004-11-25 2011-09-28 パナソニック電工株式会社 無線センサ装置
US9774961B2 (en) 2005-06-05 2017-09-26 Starkey Laboratories, Inc. Hearing assistance device ear-to-ear communication using an intermediate device
US8041066B2 (en) 2007-01-03 2011-10-18 Starkey Laboratories, Inc. Wireless system for hearing communication devices providing wireless stereo reception modes
US20070139195A1 (en) * 2005-12-19 2007-06-21 Yucheng Jin Security system employing a hall effect sensor
DE102006014795B4 (de) * 2006-03-29 2017-05-11 Infineon Technologies Ag Vorrichtung, Mobiltelefon, Optoelektronisches Halbleiterbauteil und Verfahren zur Datenübertragung zwischen durch ein Gelenk verbundene Baueinheiten
US8208642B2 (en) 2006-07-10 2012-06-26 Starkey Laboratories, Inc. Method and apparatus for a binaural hearing assistance system using monaural audio signals
KR101107668B1 (ko) * 2006-09-07 2012-01-25 알프스 덴키 가부시키가이샤 자기검출장치
JP2010157002A (ja) * 2007-04-19 2010-07-15 Alps Electric Co Ltd 電子機器
EP2000814B1 (de) * 2007-06-04 2011-10-26 Melexis NV Magnetfeld-Richtungs-Sensor
JP5048771B2 (ja) * 2007-06-11 2012-10-17 アルプス電気株式会社 磁気検出装置及び電気製品
US8008908B2 (en) * 2007-06-25 2011-08-30 Allegro Microsystems, Inc. Low power magnetic field sensor
US20090251406A1 (en) * 2008-04-02 2009-10-08 Philip Seibert System and Method for Selective Activation and Deactivation of an Information Handling System Input Output Device
US8222888B2 (en) * 2008-09-29 2012-07-17 Allegro Microsystems, Inc. Micro-power magnetic switch
KR200451755Y1 (ko) * 2008-10-14 2011-01-10 김형일 초순수 제조기의 프론트판넬 구조
US8089270B2 (en) * 2009-03-10 2012-01-03 Allegro Microsystems, Inc. Magnetic field detector having a variable threshold
GB0904240D0 (en) 2009-03-12 2009-04-22 Aviza Technology Ltd Apparatus for chemically etching a workpiece
US8222774B2 (en) * 2009-03-27 2012-07-17 Dell Products L.P. System and method for enclosing information handling system component devices
US8058864B2 (en) * 2009-04-17 2011-11-15 Allegro Microsystems, Inc. Circuits and methods for providing a magnetic field sensor with an adaptable threshold
US8260381B2 (en) * 2009-12-04 2012-09-04 Research In Motion Limited Apparatus and method for detecting physical state and holster presence
US9420385B2 (en) 2009-12-21 2016-08-16 Starkey Laboratories, Inc. Low power intermittent messaging for hearing assistance devices
US8264310B2 (en) * 2010-09-17 2012-09-11 Apple Inc. Accessory device for peek mode
US8143982B1 (en) 2010-09-17 2012-03-27 Apple Inc. Foldable accessory device
US8395465B2 (en) * 2010-09-17 2013-03-12 Apple Inc. Cover for an electric device
US8242868B2 (en) 2010-09-17 2012-08-14 Apple Inc. Methods and apparatus for configuring a magnetic attachment system
US8390412B2 (en) * 2010-09-17 2013-03-05 Apple Inc. Protective cover
US8289115B2 (en) * 2010-09-17 2012-10-16 Apple Inc. Sensor fusion
US8344836B2 (en) 2010-09-17 2013-01-01 Apple Inc. Protective cover for a tablet computer
US8390411B2 (en) * 2010-09-17 2013-03-05 Apple Inc. Tablet device
US8786279B2 (en) 2011-02-25 2014-07-22 Allegro Microsystems, Llc Circuit and method for processing signals generated by a plurality of sensors
US9062990B2 (en) 2011-02-25 2015-06-23 Allegro Microsystems, Llc Circular vertical hall magnetic field sensing element and method with a plurality of continuous output signals
US8669759B2 (en) 2011-03-31 2014-03-11 Infineon Technologies Ag Omnipolar magnetic switches
US8729890B2 (en) 2011-04-12 2014-05-20 Allegro Microsystems, Llc Magnetic angle and rotation speed sensor with continuous and discontinuous modes of operation based on rotation speed of a target object
US8860410B2 (en) 2011-05-23 2014-10-14 Allegro Microsystems, Llc Circuits and methods for processing a signal generated by a plurality of measuring devices
US8890518B2 (en) 2011-06-08 2014-11-18 Allegro Microsystems, Llc Arrangements for self-testing a circular vertical hall (CVH) sensing element and/or for self-testing a magnetic field sensor that uses a circular vertical hall (CVH) sensing element
US8793085B2 (en) 2011-08-19 2014-07-29 Allegro Microsystems, Llc Circuits and methods for automatically adjusting a magnetic field sensor in accordance with a speed of rotation sensed by the magnetic field sensor
US8922206B2 (en) 2011-09-07 2014-12-30 Allegro Microsystems, Llc Magnetic field sensing element combining a circular vertical hall magnetic field sensing element with a planar hall element
TWI442074B (zh) * 2011-09-23 2014-06-21 Acer Inc 電子裝置與防呆方法
US9285438B2 (en) 2011-09-28 2016-03-15 Allegro Microsystems, Llc Circuits and methods for processing signals generated by a plurality of magnetic field sensing elements
US9046383B2 (en) 2012-01-09 2015-06-02 Allegro Microsystems, Llc Systems and methods that use magnetic field sensors to identify positions of a gear shift lever
US9182456B2 (en) 2012-03-06 2015-11-10 Allegro Microsystems, Llc Magnetic field sensor for sensing rotation of an object
WO2013147726A1 (en) * 2012-03-25 2013-10-03 Intel Corporation Orientation sensing computing devices
US10215550B2 (en) 2012-05-01 2019-02-26 Allegro Microsystems, Llc Methods and apparatus for magnetic sensors having highly uniform magnetic fields
US9219477B2 (en) * 2012-11-21 2015-12-22 Daesung Electric Co., Ltd. Non-contact switch
US9606190B2 (en) 2012-12-21 2017-03-28 Allegro Microsystems, Llc Magnetic field sensor arrangements and associated methods
US9417295B2 (en) 2012-12-21 2016-08-16 Allegro Microsystems, Llc Circuits and methods for processing signals generated by a circular vertical hall (CVH) sensing element in the presence of a multi-pole magnet
US8749005B1 (en) 2012-12-21 2014-06-10 Allegro Microsystems, Llc Magnetic field sensor and method of fabricating a magnetic field sensor having a plurality of vertical hall elements arranged in at least a portion of a polygonal shape
US9548443B2 (en) 2013-01-29 2017-01-17 Allegro Microsystems, Llc Vertical Hall Effect element with improved sensitivity
US9377285B2 (en) 2013-02-13 2016-06-28 Allegro Microsystems, Llc Magnetic field sensor and related techniques that provide varying current spinning phase sequences of a magnetic field sensing element
US9389060B2 (en) 2013-02-13 2016-07-12 Allegro Microsystems, Llc Magnetic field sensor and related techniques that provide an angle error correction module
US9099638B2 (en) 2013-03-15 2015-08-04 Allegro Microsystems, Llc Vertical hall effect element with structures to improve sensitivity
CN104065367B (zh) 2013-03-20 2017-11-07 江苏多维科技有限公司 一种低功耗磁电阻开关传感器
TW201443614A (zh) * 2013-05-10 2014-11-16 Hon Hai Prec Ind Co Ltd 筆記本電腦
US9733106B2 (en) 2013-05-24 2017-08-15 Allegro Microsystems, Llc Magnetic field sensor to detect a magnitude of a magnetic field in any direction
WO2014189733A1 (en) 2013-05-24 2014-11-27 Allegro Microsystems, Llc Magnetic field sensor for detecting a magnetic field in any direction above thresholds
US9400164B2 (en) 2013-07-22 2016-07-26 Allegro Microsystems, Llc Magnetic field sensor and related techniques that provide an angle correction module
US9312473B2 (en) 2013-09-30 2016-04-12 Allegro Microsystems, Llc Vertical hall effect sensor
US9341682B2 (en) 2013-10-29 2016-05-17 Infineon Technologies Ag Systems and methods having omnipolar comparators for magnetic switches
US10120042B2 (en) 2013-12-23 2018-11-06 Allegro Microsystems, Llc Magnetic field sensor and related techniques that inject a synthesized error correction signal into a signal channel to result in reduced error
US9574867B2 (en) 2013-12-23 2017-02-21 Allegro Microsystems, Llc Magnetic field sensor and related techniques that inject an error correction signal into a signal channel to result in reduced error
US9547048B2 (en) 2014-01-14 2017-01-17 Allegro Micosystems, LLC Circuit and method for reducing an offset component of a plurality of vertical hall elements arranged in a circle
US10649043B2 (en) 2014-04-28 2020-05-12 Infineon Technologies Ag Magnetic field sensor device configured to sense with high precision and low jitter
KR102174724B1 (ko) 2014-04-30 2020-11-06 주식회사 해치텍 복수의 홀 센서그룹을 이용한 센싱 시스템 및 이를 이용한 장치
US9753097B2 (en) 2014-05-05 2017-09-05 Allegro Microsystems, Llc Magnetic field sensors and associated methods with reduced offset and improved accuracy
US10003379B2 (en) 2014-05-06 2018-06-19 Starkey Laboratories, Inc. Wireless communication with probing bandwidth
US9448288B2 (en) 2014-05-20 2016-09-20 Allegro Microsystems, Llc Magnetic field sensor with improved accuracy resulting from a digital potentiometer
TWI533108B (zh) * 2014-05-22 2016-05-11 緯創資通股份有限公司 可攜式電子裝置
CN204013472U (zh) * 2014-06-24 2014-12-10 中兴通讯股份有限公司 一种按键
JP6413501B2 (ja) * 2014-08-29 2018-10-31 富士ゼロックス株式会社 開閉検知装置及びこれを用いた開閉装置、処理装置
US9823092B2 (en) 2014-10-31 2017-11-21 Allegro Microsystems, Llc Magnetic field sensor providing a movement detector
US9638766B2 (en) 2014-11-24 2017-05-02 Allegro Microsystems, Llc Magnetic field sensor with improved accuracy resulting from a variable potentiometer and a gain circuit
EP3361275B1 (de) 2015-01-14 2019-12-25 Allegro MicroSystems, LLC Integrierter magnetfeldsensor und verfahren zum ein- und ausschalten einer last
US9970996B2 (en) 2015-01-20 2018-05-15 Allegro Microsystems, Llc Methods and apparatus for generating a threshold signal in a magnetic field sensor
US9684042B2 (en) 2015-02-27 2017-06-20 Allegro Microsystems, Llc Magnetic field sensor with improved accuracy and method of obtaining improved accuracy with a magnetic field sensor
US11163022B2 (en) 2015-06-12 2021-11-02 Allegro Microsystems, Llc Magnetic field sensor for angle detection with a phase-locked loop
US10024689B2 (en) 2015-09-17 2018-07-17 Apple Inc. Using magnets to detect a state of a cover
EP3144769B1 (de) * 2015-09-21 2019-12-25 HOLYGO Corporation Elektronische vorrichtung
WO2017051091A1 (fr) * 2015-09-24 2017-03-30 Essilor International (Compagnie Generale D'optique) Monture electronique pour dispositif optique et procede de fonctionnement de ladite monture electronique
KR101723176B1 (ko) * 2015-11-10 2017-04-05 주식회사 인터엠 믹싱 앰프의 볼륨조절장치 및 볼륨조절방법
US9921080B2 (en) * 2015-12-18 2018-03-20 Datalogic Ip Tech S.R.L. Using hall sensors to detect insertion and locking of a portable device in a base
US9739847B1 (en) 2016-02-01 2017-08-22 Allegro Microsystems, Llc Circular vertical hall (CVH) sensing element with signal processing
US10481220B2 (en) 2016-02-01 2019-11-19 Allegro Microsystems, Llc Circular vertical hall (CVH) sensing element with signal processing and arctangent function
US9739848B1 (en) 2016-02-01 2017-08-22 Allegro Microsystems, Llc Circular vertical hall (CVH) sensing element with sliding integration
US10338642B2 (en) 2016-05-20 2019-07-02 Honeywell International Inc. Hall switch with adaptive threshold
US10385964B2 (en) 2016-06-08 2019-08-20 Allegro Microsystems, Llc Enhanced neutral gear sensor
US10585147B2 (en) 2016-06-14 2020-03-10 Allegro Microsystems, Llc Magnetic field sensor having error correction
US9999107B1 (en) 2016-12-14 2018-06-12 Allegro Microsystems, Llc Light emitting diode driver for dimming and on/off control
US10739164B2 (en) 2017-01-27 2020-08-11 Allegro Microsystems, Llc Circuit for detecting motion of an object
US10495701B2 (en) 2017-03-02 2019-12-03 Allegro Microsystems, Llc Circular vertical hall (CVH) sensing element with DC offset removal
US10627458B2 (en) 2017-09-25 2020-04-21 Allegro Microsystems, Llc Omnipolar schmitt trigger
US10823586B2 (en) 2018-12-26 2020-11-03 Allegro Microsystems, Llc Magnetic field sensor having unequally spaced magnetic field sensing elements
US11152938B2 (en) * 2019-04-30 2021-10-19 Allegro Microsystems, Llc Magnetic switch with toggle and de-bounce functionality
US10921341B2 (en) 2019-05-09 2021-02-16 Allegro Microsystems, Llc Methods and apparatus for generating a uniform response in a magnetic field sensor
US11237020B2 (en) 2019-11-14 2022-02-01 Allegro Microsystems, Llc Magnetic field sensor having two rows of magnetic field sensing elements for measuring an angle of rotation of a magnet
US11280637B2 (en) 2019-11-14 2022-03-22 Allegro Microsystems, Llc High performance magnetic angle sensor
US11294000B1 (en) 2020-10-01 2022-04-05 Allegro Microsystems, Llc Magnetic field sensor with an adjustable threshold for stray field immunity
US11802922B2 (en) 2021-01-13 2023-10-31 Allegro Microsystems, Llc Circuit for reducing an offset component of a plurality of vertical hall elements arranged in one or more circles
US11473935B1 (en) 2021-04-16 2022-10-18 Allegro Microsystems, Llc System and related techniques that provide an angle sensor for sensing an angle of rotation of a ferromagnetic screw
US11892524B1 (en) 2022-10-13 2024-02-06 Allegro Microsystems, Llc Reduced area magnetic field sensor topology

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US544283A (en) * 1895-08-13 Conduit for electric conductors for railways
US3846697A (en) * 1972-11-14 1974-11-05 Airpax Electronics Digital pickup
FR2388248A1 (fr) 1977-04-20 1978-11-17 Radiotechnique Compelec Detecteur de position a effet hall
NO802936L (no) 1979-10-08 1981-04-09 Duraplug Elect Ltd Elektrisk bryteranordning
US4296410A (en) * 1980-02-25 1981-10-20 Sprague Electric Company Two-state Hall element proximity sensor device with lamp indicator
US4355209A (en) 1980-12-29 1982-10-19 Gte Automatic Electric Labs Inc. Programmable line circuit
JPS6248160A (ja) 1985-08-27 1987-03-02 Fujitsu Ltd 電話機用フツクスイツチ
US4745363A (en) 1986-07-16 1988-05-17 North American Philips Corporation Non-oriented direct coupled gear tooth sensor using a Hall cell
US4761569A (en) 1987-02-24 1988-08-02 Sprague Electric Company Dual trigger Hall effect I.C. switch
US4859941A (en) 1987-03-18 1989-08-22 Sprague Electric Company Proximity selectro with integral magnet, pole-piece plate and pair of magnetic transducers
JP2570654B2 (ja) 1987-12-08 1997-01-08 日本精工株式会社 変位検出装置
US5789915A (en) 1989-02-17 1998-08-04 Nartron Corporation Magnetic field energy responsive position sensing apparatus and method
US5402064A (en) * 1992-09-02 1995-03-28 Santa Barbara Research Center Magnetoresistive sensor circuit with high output voltage swing and temperature compensation
JP2833964B2 (ja) 1993-06-28 1998-12-09 日本電気株式会社 折畳型携帯電話機
US5442283A (en) * 1993-09-03 1995-08-15 Allegro Microsystems, Inc. Hall-voltage slope-activated sensor
US5570016A (en) * 1994-06-01 1996-10-29 General Motors Corporation Method and apparatus for detecting crankshaft angular position
US5541562A (en) 1994-10-16 1996-07-30 Honeywell Inc. Apparatus for sensing the closure of a door
US5666410A (en) 1995-12-05 1997-09-09 Mclane; Jerry Automatic sterilizer for telephones and the method of use therefore
US5686894A (en) 1996-01-03 1997-11-11 Vig; Ravi Two terminal I.C. magnetic-field detector for use in a liquid level sensor and having an anti-slosh feature
JPH09266666A (ja) * 1996-03-28 1997-10-07 Rohm Co Ltd 昇圧回路とその制御回路
JPH09294060A (ja) 1996-04-26 1997-11-11 Nippon Arefu:Kk 無接点型磁気スイッチ
US6035211A (en) * 1996-12-19 2000-03-07 Ericsson Inc. Dual use speaker for both voice communication and signalling
US5867021A (en) 1997-02-11 1999-02-02 Hancock; Peter G. Method and apparatus for sensing the position of a ferromagnetic object
US5861796A (en) 1997-04-18 1999-01-19 Easton Corporation Multiple position hall effect switch with lever actuator biasing mechanism
US6014008A (en) 1998-01-22 2000-01-11 Ericsson, Inc. Battery identification system
US6356741B1 (en) * 1998-09-18 2002-03-12 Allegro Microsystems, Inc. Magnetic pole insensitive switch circuit

Also Published As

Publication number Publication date
ATE271715T1 (de) 2004-08-15
WO2000017901A1 (en) 2000-03-30
DE69918839T2 (de) 2004-12-16
US6356741B1 (en) 2002-03-12
CA2343409C (en) 2007-01-16
KR100429344B1 (ko) 2004-04-29
JP2002525947A (ja) 2002-08-13
US20060197522A1 (en) 2006-09-07
KR20010075146A (ko) 2001-08-09
EP1487000B1 (de) 2006-08-30
US20020068533A1 (en) 2002-06-06
EP1487000A1 (de) 2004-12-15
CA2343409A1 (en) 2000-03-30
US20040027772A1 (en) 2004-02-12
DE69933065T2 (de) 2007-08-16
EP1112583B1 (de) 2004-07-21
MXPA01002613A (es) 2002-04-08
DE69918839D1 (de) 2004-08-26
US7307824B2 (en) 2007-12-11
US7085119B2 (en) 2006-08-01
EP1112583A1 (de) 2001-07-04
JP3693918B2 (ja) 2005-09-14
ATE338339T1 (de) 2006-09-15
US6622012B2 (en) 2003-09-16

Similar Documents

Publication Publication Date Title
DE69933065D1 (de) Magnetpolunempfindlicher Schalter
DE60336917D1 (de) Integrierter stromsensor
DE69633683D1 (de) Magnetkreisanordnung mit einander gegenüberliegenden Permanentmagneten
BR9500823A (pt) Sensor de posição
EP0294636A3 (de) Stromfühler
SE9800355L (sv) Portabel kommunikationsanordning med ett rörligt element och en givare för detektering av dess position
ATE166490T1 (de) Elektromechanisches schaltgerät sowie anordnung mit mehreren derartigen schaltgeräten
DE59504833D1 (de) Näherungsschalter mit magnetfeldempfindlichem sensor
ATE190775T1 (de) Elektronisch kommutierter aussenläufermotor
DE60007270D1 (de) Positionsgeber
HK1013729A1 (en) A magnetoresistive sensor and method of making the same
FR2786266B1 (fr) Capteur de position a sonde de hall
SE9202401D0 (sv) Roerelsesensor av induktiv typ
DE3860712D1 (de) Stoerfeldfester naeherungsschalter.
DE3687547D1 (de) Beruehrungslos arbeitende naeherungsschalteinrichtung.
WO2004051297A3 (en) Use of a ring magnet to achieve a magnetic sensor pulse train output
CA2562985A1 (en) Magnetic pole insensitive switch circuit
ATE154861T1 (de) Annäherungsschalter
DE69113732T2 (de) Magnetkreis mit Permanentmagnet.
WO2002013387A8 (en) Switch assembly
DE50111154D1 (de) Beschleunigungsmessvorrichtung
DE69703053D1 (de) Elektromagnetischer Transdukter mit multipolaren Permanentmagneten
DK0388622T3 (da) Tryktransmitter
KR970003465U (ko) 자계 감지 센서회로
RU94028419A (ru) Радиоэлемент "кадистор"

Legal Events

Date Code Title Description
8364 No opposition during term of opposition