JPS5443619A - Character input device - Google Patents

Character input device

Info

Publication number
JPS5443619A
JPS5443619A JP11023677A JP11023677A JPS5443619A JP S5443619 A JPS5443619 A JP S5443619A JP 11023677 A JP11023677 A JP 11023677A JP 11023677 A JP11023677 A JP 11023677A JP S5443619 A JPS5443619 A JP S5443619A
Authority
JP
Japan
Prior art keywords
pen
driving
detection
circuit
lines
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
JP11023677A
Other languages
Japanese (ja)
Other versions
JPS569728B2 (en
Inventor
Mikio Suzuki
Tamotsu Mochizuki
Haruhiko Yoshida
Toshiyasu Hamao
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP11023677A priority Critical patent/JPS5443619A/en
Publication of JPS5443619A publication Critical patent/JPS5443619A/en
Publication of JPS569728B2 publication Critical patent/JPS569728B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To increase the reliability and the durability as well as the operational performance with a miniature size for the character input device, by using the electromagnetic coupling type input pen.
CONSTITUTION: Control circuit 11 controls driving circuit 12 to select sequentially the optional adjacent two lines among driving line groups d1Wdm of the tablet and then to supply (13) the driving pulse current. At the same time, circuit 11 controls sensor switch 14 to select sequentially the adjacent two lines among detection line groups S1WSn as well as to generate the voltage proportional to the time change of the driving pulse current via the electromagnetic induction. On the other hand, the desired position is indicated by data input pen 15, and the detection voltage is supplied to the selected sense line pair only when the desired part is pressed. In this case, the magnetic substance of pen 15 increases the mutual inductance between the driving coil and the detection coil. Thus, the signal featuring the phase error of 90° is detected (16), and phase detection 17 is carried out when the detected signal exceeds the threshold level. And then the address is generated (18). In this way, the character corresponding to the positions pressed by pen 15 is supplied.
COPYRIGHT: (C)1979,JPO&Japio
JP11023677A 1977-09-13 1977-09-13 Character input device Granted JPS5443619A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11023677A JPS5443619A (en) 1977-09-13 1977-09-13 Character input device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11023677A JPS5443619A (en) 1977-09-13 1977-09-13 Character input device

Publications (2)

Publication Number Publication Date
JPS5443619A true JPS5443619A (en) 1979-04-06
JPS569728B2 JPS569728B2 (en) 1981-03-03

Family

ID=14530542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11023677A Granted JPS5443619A (en) 1977-09-13 1977-09-13 Character input device

Country Status (1)

Country Link
JP (1) JPS5443619A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4841290A (en) * 1986-09-25 1989-06-20 Mitsubishi Denki Kabushiki Kaisha Display unit
JPH0744301A (en) * 1994-01-10 1995-02-14 Wacom Co Ltd Position pointer for coorinate input device
WO2017183526A1 (en) * 2016-04-22 2017-10-26 株式会社ワコム Electronic pen and electronic pen body

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4841290A (en) * 1986-09-25 1989-06-20 Mitsubishi Denki Kabushiki Kaisha Display unit
JPH0744301A (en) * 1994-01-10 1995-02-14 Wacom Co Ltd Position pointer for coorinate input device
WO2017183526A1 (en) * 2016-04-22 2017-10-26 株式会社ワコム Electronic pen and electronic pen body
JPWO2017183526A1 (en) * 2016-04-22 2018-11-22 株式会社ワコム Electronic pen and electronic pen body

Also Published As

Publication number Publication date
JPS569728B2 (en) 1981-03-03

Similar Documents

Publication Publication Date Title
JPS6484325A (en) Multiplex input detecting system in pressure sensitive type input device
JPS55121156A (en) Core disconnection detection unit
JPS5652159A (en) Contour control system
JPS5443619A (en) Character input device
JPS5644977A (en) Pattern information input system
JPS5534770A (en) Electromagnetic coupling type input device
JPS53102711A (en) Information retrieving device for magnetic tape
JPS5544902A (en) Relay life testing system
JPS532045A (en) Coordinates read method and its device
JPS5247708A (en) Magnetic recorder-reproducer system
JPS553074A (en) Electromagnetic coupling multi-item input device
JPS53148329A (en) Tablet input unit
JPS55134485A (en) Electromagnetic coupling pattern input device
JPS53109456A (en) Interrupt control unit for data processing unit
JPS5387629A (en) Error detection system of control memory
JPS5390815A (en) Electromagnetic coupling type data input device
JPS51150239A (en) Page input unit
JPS5433982A (en) Cheque system in control system of n c controller
JPS55143649A (en) Information input device
JPS576451A (en) Retrieving circuit of magnetic recording and reproducing device
JPS51149739A (en) Method of conbisming number of prges of magnetic passbook
JPS554652A (en) Electromagnetic coupled pattern input device
JPS52104834A (en) Portable simple data collector
JPS52113709A (en) Track switching control circuit
JPS5374332A (en) Microprogram control unit