JPS5798081A - Coordinate reader - Google Patents

Coordinate reader

Info

Publication number
JPS5798081A
JPS5798081A JP55173755A JP17375580A JPS5798081A JP S5798081 A JPS5798081 A JP S5798081A JP 55173755 A JP55173755 A JP 55173755A JP 17375580 A JP17375580 A JP 17375580A JP S5798081 A JPS5798081 A JP S5798081A
Authority
JP
Japan
Prior art keywords
magnetic field
coordinates
processing unit
detector
phase
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.)
Granted
Application number
JP55173755A
Other languages
Japanese (ja)
Other versions
JPS607289B2 (en
Inventor
Tsutomu Jinno
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP55173755A priority Critical patent/JPS607289B2/en
Priority to US06/238,961 priority patent/US4418242A/en
Publication of JPS5798081A publication Critical patent/JPS5798081A/en
Publication of JPS607289B2 publication Critical patent/JPS607289B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/047—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using sets of wires, e.g. crossed wires
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)

Abstract

PURPOSE:To obtain accurate coordinate data independently of slope of a position detector without effect of external dielectric substance, by recognizing the phase changing to coordinates from the vector component of a rotating magnetic field. CONSTITUTION:At a magnetic field generator 22, when AC signals phase-shifted sequentially are applied from AC signal sources 35-38 to a magnetic field generating coil, the magnetic field generated with coils 31-34 reacts with a position detector 23 on a flat plate plane 21. The tip of the detector 23 is continuously moved between x coordinates 30-39 on the plate, and analog electric signals from the detector 23 are applied to a processing unit. In this case, almost linear relation can be obtained between the phase theta and the x coordinate of the analog electric signals given to the processing unit, and the coordinate data among the coordinates 30-29 can continuously be taken from the processing unit. This results from the continuous forming of cylindrical rotating magnetic field on the flat plate.
JP55173755A 1980-03-04 1980-12-11 coordinate reading device Expired JPS607289B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP55173755A JPS607289B2 (en) 1980-12-11 1980-12-11 coordinate reading device
US06/238,961 US4418242A (en) 1980-03-04 1981-02-27 Coordinate reading apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55173755A JPS607289B2 (en) 1980-12-11 1980-12-11 coordinate reading device

Publications (2)

Publication Number Publication Date
JPS5798081A true JPS5798081A (en) 1982-06-18
JPS607289B2 JPS607289B2 (en) 1985-02-23

Family

ID=15966529

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55173755A Expired JPS607289B2 (en) 1980-03-04 1980-12-11 coordinate reading device

Country Status (1)

Country Link
JP (1) JPS607289B2 (en)

Also Published As

Publication number Publication date
JPS607289B2 (en) 1985-02-23

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