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JPS5559532A - Position input device - Google Patents

Position input device

Info

Publication number
JPS5559532A
JPS5559532A JP13341378A JP13341378A JPS5559532A JP S5559532 A JPS5559532 A JP S5559532A JP 13341378 A JP13341378 A JP 13341378A JP 13341378 A JP13341378 A JP 13341378A JP S5559532 A JPS5559532 A JP S5559532A
Authority
JP
Japan
Prior art keywords
wire
amplifier
sense
driving
loop
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.)
Pending
Application number
JP13341378A
Other languages
Japanese (ja)
Inventor
Masamichi Shiyudo
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP13341378A priority Critical patent/JPS5559532A/en
Publication of JPS5559532A publication Critical patent/JPS5559532A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a low-cost and high-controllability position input device by using the sense wire forming a loop, the driving wire group which contains the parallel part to the sense wire to have the electromagnetic connection, and the input pen containing the sense amplifier and the high magnetic conductivity component each.
CONSTITUTION: Sence wire 1 forming the sense loop plus driving wire groups 2 and 2' containing the parallel part to wire 1 are distributed to secure the electromagnetic induction connection with wire 1. Driving wires 2 and 2' feature the opposite current directions to each other to sence loop 1. And the both ends of wire 1 are put into sense amplifier 3 along with installation of the input pen containing the high magnetic conductivity component 4. When the pulse current (a) is supplied to wire 2, signal (b) is obtained from amplifier 3 to be made to correspond to bit 1. In the same way, signal (c) corresponding to bit 0 is obtained from amplifier 3 when wire 2' is driven. In this connection, if driving current (d) and (e) are flown to amplifier 3 at the different time, detection signal (f) is obtained from amplifier 3. As a result, the number of the driving circuit and the sense amplifier can be decreased to obtain a low-cost device.
COPYRIGHT: (C)1980,JPO&Japio
JP13341378A 1978-10-30 1978-10-30 Position input device Pending JPS5559532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13341378A JPS5559532A (en) 1978-10-30 1978-10-30 Position input device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13341378A JPS5559532A (en) 1978-10-30 1978-10-30 Position input device

Publications (1)

Publication Number Publication Date
JPS5559532A true JPS5559532A (en) 1980-05-06

Family

ID=15104179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13341378A Pending JPS5559532A (en) 1978-10-30 1978-10-30 Position input device

Country Status (1)

Country Link
JP (1) JPS5559532A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014232530A (en) * 2013-05-28 2014-12-11 三星ディスプレイ株式會社Ｓａｍｓｕｎｇ Ｄｉｓｐｌａｙ Ｃｏ．，Ｌｔｄ． Display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014232530A (en) * 2013-05-28 2014-12-11 三星ディスプレイ株式會社Ｓａｍｓｕｎｇ Ｄｉｓｐｌａｙ Ｃｏ．，Ｌｔｄ． Display device

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