HK1054594A1 - 電子設備 - Google Patents

電子設備

Info

Publication number
HK1054594A1
HK1054594A1 HK03106805.9A HK03106805A HK1054594A1 HK 1054594 A1 HK1054594 A1 HK 1054594A1 HK 03106805 A HK03106805 A HK 03106805A HK 1054594 A1 HK1054594 A1 HK 1054594A1
Authority
HK
Hong Kong
Prior art keywords
electronic equipment
electronic
equipment
Prior art date
Application number
HK03106805.9A
Other languages
English (en)
Inventor
加藤一雄
Original Assignee
精工電子有限公司
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 精工電子有限公司 filed Critical 精工電子有限公司
Publication of HK1054594A1 publication Critical patent/HK1054594A1/zh

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/02Magnetic compasses
    • G01C17/28Electromagnetic compasses
    • G01C17/30Earth-inductor compasses
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B47/00Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/06Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached measuring instruments, e.g. pedometer, barometer, thermometer or compass
    • G04B47/065Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached measuring instruments, e.g. pedometer, barometer, thermometer or compass with a compass
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S33/00Geometrical instruments
    • Y10S33/01Magnetic

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electric Clocks (AREA)
  • Measuring Magnetic Variables (AREA)
  • Geophysics And Detection Of Objects (AREA)
HK03106805.9A 2001-09-06 2003-09-22 電子設備 HK1054594A1 (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001270281A JP2003075157A (ja) 2001-09-06 2001-09-06 電子機器

Publications (1)

Publication Number Publication Date
HK1054594A1 true HK1054594A1 (zh) 2003-12-05

Family

ID=19095952

Family Applications (1)

Application Number Title Priority Date Filing Date
HK03106805.9A HK1054594A1 (zh) 2001-09-06 2003-09-22 電子設備

Country Status (5)

Country Link
US (1) US6817106B2 (zh)
EP (1) EP1291618A3 (zh)
JP (1) JP2003075157A (zh)
CN (1) CN1407416A (zh)
HK (1) HK1054594A1 (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6992481B2 (en) * 2003-05-29 2006-01-31 Timex Group B. V. Method for compensating for predictable generated signals in an electronic device
KR100580628B1 (ko) * 2003-11-08 2006-05-16 삼성전자주식회사 이동물체의 진행방향 추정 방법 및 시스템
JP4120648B2 (ja) * 2005-02-23 2008-07-16 ヤマハ株式会社 携帯端末、携帯端末の制御方法、プログラムおよび記録媒体
JP4593440B2 (ja) * 2005-11-02 2010-12-08 Necカシオモバイルコミュニケーションズ株式会社 方位計測装置、及び、方位計測方法
JP4877018B2 (ja) * 2007-03-30 2012-02-15 Tdk株式会社 電流検出回路及びこの電流検出回路の初期化方法
FI120276B (fi) * 2007-05-21 2009-08-31 Suunto Oy Kompassilaite ja menetelmä kompassilaitteita varten
CN103884325B (zh) * 2012-12-21 2016-08-03 西安合众思壮导航技术有限公司 电子罗盘及带有该电子罗盘的设备
FI126012B (fi) 2012-12-31 2016-05-31 Suunto Oy Menetelmä ja laite suunnan määrittämiseksi magneettikentässä
TWI579577B (zh) 2015-06-29 2017-04-21 謝振傑 基於磁特性檢測技術的檢測方法、造影方法與相關裝置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4668100A (en) * 1985-09-03 1987-05-26 Citizen Watch Co., Ltd. Electronic equipment with geomagnetic direction sensor
US5269065A (en) * 1990-03-20 1993-12-14 Casio Computer Co., Ltd. Compass including means for displaying constellation data
US5247278A (en) * 1991-11-26 1993-09-21 Honeywell Inc. Magnetic field sensing device
DE4319146C2 (de) * 1993-06-09 1999-02-04 Inst Mikrostrukturtechnologie Magnetfeldsensor, aufgebaut aus einer Ummagnetisierungsleitung und einem oder mehreren magnetoresistiven Widerständen
US5642046A (en) * 1994-06-08 1997-06-24 Magknowledge Inc. Low power magnetometer circuits requiring a single switching cycle
US5600611A (en) * 1995-10-04 1997-02-04 Timex Corporation Wrist mountable compass
US5764541A (en) * 1995-12-22 1998-06-09 Hermann Finance Corporation Ltd. Microprocessor controlled sensor signal conditioning circuit
US6084406A (en) * 1997-04-01 2000-07-04 Precision Navigation, Inc. Half-cycle saturable-core magnetometer circuit
US6014025A (en) * 1998-02-24 2000-01-11 Methode Electronics, Inc. PWM flux-gate circuit for measuring magnitude and direction of a magnetic field
US6445171B2 (en) * 1999-10-29 2002-09-03 Honeywell Inc. Closed-loop magnetoresistive current sensor system having active offset nulling

Also Published As

Publication number Publication date
JP2003075157A (ja) 2003-03-12
EP1291618A3 (en) 2004-08-25
US20030041466A1 (en) 2003-03-06
CN1407416A (zh) 2003-04-02
US6817106B2 (en) 2004-11-16
EP1291618A2 (en) 2003-03-12

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