JPS57106988A - Coordinate reader - Google Patents

Coordinate reader

Info

Publication number
JPS57106988A
JPS57106988A JP55182570A JP18257080A JPS57106988A JP S57106988 A JPS57106988 A JP S57106988A JP 55182570 A JP55182570 A JP 55182570A JP 18257080 A JP18257080 A JP 18257080A JP S57106988 A JPS57106988 A JP S57106988A
Authority
JP
Japan
Prior art keywords
plane plate
amplitude
phase
coils
magnetic field
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
JP55182570A
Other languages
Japanese (ja)
Other versions
JPS5818667B2 (en
Inventor
Yukio Takeda
Tsutomu Jinno
Naoto Tanabe
Yoshitami Aono
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 JP55182570A priority Critical patent/JPS5818667B2/en
Publication of JPS57106988A publication Critical patent/JPS57106988A/en
Publication of JPS5818667B2 publication Critical patent/JPS5818667B2/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
    • G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means

Landscapes

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

Abstract

PURPOSE:To improve readout precision at the end part of a plane plate by linearly varying the phase of a magnetic field, perpendicular to the plane plate, in accordance with a position on the plane plate, by providing a means of varying the current amplitude of each coil arranged on the plane plate. CONSTITUTION:In the direction of the width A of the plane plate 2 of a coordinate reader, coils 3-1, 3-2...3-N having the same characteristics are arrayed in a line and then energized by power voltages e'1...e'N from AC power sources 4-1...4-N. In this case, when the amplitude of an optional voltage e'n is A'n and a phase angle is phin, the amplitude A'n decreases gradually more the coil 3-1 and 3-N at both the end parts than coils at the center part. Then, the phase of a magnetic field perpendicular (Y direction) to the plane plate 2 is varied with regard to the position on the plane plate 2 to improve readout precision at the end part of the plane plate 2.
JP55182570A 1980-12-23 1980-12-23 coordinate reading device Expired JPS5818667B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55182570A JPS5818667B2 (en) 1980-12-23 1980-12-23 coordinate reading device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55182570A JPS5818667B2 (en) 1980-12-23 1980-12-23 coordinate reading device

Publications (2)

Publication Number Publication Date
JPS57106988A true JPS57106988A (en) 1982-07-03
JPS5818667B2 JPS5818667B2 (en) 1983-04-14

Family

ID=16120582

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55182570A Expired JPS5818667B2 (en) 1980-12-23 1980-12-23 coordinate reading device

Country Status (1)

Country Link
JP (1) JPS5818667B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018026017A (en) * 2016-08-10 2018-02-15 株式会社ジャパンディスプレイ Input detection device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6114066A (en) * 1984-06-28 1986-01-22 Shin Kobe Electric Mach Co Ltd Die for casting grid body of lead storage battery
JPS6138772A (en) * 1984-07-31 1986-02-24 Shin Kobe Electric Mach Co Ltd Lattice body casting metallic mold for lead battery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018026017A (en) * 2016-08-10 2018-02-15 株式会社ジャパンディスプレイ Input detection device

Also Published As

Publication number Publication date
JPS5818667B2 (en) 1983-04-14

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