JPS5644978A - Coordinate input device - Google Patents

Coordinate input device

Info

Publication number
JPS5644978A
JPS5644978A JP11942079A JP11942079A JPS5644978A JP S5644978 A JPS5644978 A JP S5644978A JP 11942079 A JP11942079 A JP 11942079A JP 11942079 A JP11942079 A JP 11942079A JP S5644978 A JPS5644978 A JP S5644978A
Authority
JP
Japan
Prior art keywords
force
panel
offset
applied onto
applying state
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
JP11942079A
Other languages
Japanese (ja)
Other versions
JPS6221126B2 (en
Inventor
Yoshimitsu Oshima
Masao Hotta
Keiichi Miyamoto
Norio Yokozawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11942079A priority Critical patent/JPS5644978A/en
Priority to US06/177,058 priority patent/US4389711A/en
Priority to EP80302819A priority patent/EP0025282B1/en
Priority to DE8080302819T priority patent/DE3067543D1/en
Publication of JPS5644978A publication Critical patent/JPS5644978A/en
Publication of JPS6221126B2 publication Critical patent/JPS6221126B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To measure and compensate the offset value without troubling the user, by providing a means which discriminates the force applying state and the no- force applying state from each other in the touch panel.
CONSTITUTION: When force is not applied onto the panel, induced noise dependent upon the commercial frequency propagated to the panel through a part of the human body for contact by conductive film 3 is not generated. At this time, outputs of force detectors 2a, 2b and 2c which detect magnitudes of components of the force at three fulcrums of the external force applied to one point on panel 1 are taken into offset holding circuits 6a, 6b and 6c through amplifiers 5a, 5b and 5c. When force is applied onto panel 1 as offset, the signal having offset eliminated by subtraction in subtracting circuits 7a, 7b and 7c is input to coordinate operating circuit 10 to obtain input position coordinates.
COPYRIGHT: (C)1981,JPO&Japio
JP11942079A 1979-08-17 1979-09-19 Coordinate input device Granted JPS5644978A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP11942079A JPS5644978A (en) 1979-09-19 1979-09-19 Coordinate input device
US06/177,058 US4389711A (en) 1979-08-17 1980-08-11 Touch sensitive tablet using force detection
EP80302819A EP0025282B1 (en) 1979-08-17 1980-08-15 Touch sensitive tablet using force detection
DE8080302819T DE3067543D1 (en) 1979-08-17 1980-08-15 Touch sensitive tablet using force detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11942079A JPS5644978A (en) 1979-09-19 1979-09-19 Coordinate input device

Publications (2)

Publication Number Publication Date
JPS5644978A true JPS5644978A (en) 1981-04-24
JPS6221126B2 JPS6221126B2 (en) 1987-05-11

Family

ID=14761012

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11942079A Granted JPS5644978A (en) 1979-08-17 1979-09-19 Coordinate input device

Country Status (1)

Country Link
JP (1) JPS5644978A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59500177A (en) * 1981-12-17 1984-02-02 ボカ−・ホ−ルディングス・プロプラエタリ−・リミテッド Improvement of floating walkway
JPS60164221A (en) * 1984-02-07 1985-08-27 Nippon Signal Co Ltd:The Position detector
JPS616727A (en) * 1984-06-20 1986-01-13 Nec Home Electronics Ltd Position calibrating method for coordinate input device
JPS61156276A (en) * 1984-12-28 1986-07-15 リズム時計工業株式会社 Running track display unit for vehicle
JPS61166583A (en) * 1985-01-18 1986-07-28 リズム時計工業株式会社 Running track display unit for vehicle
WO2012056795A1 (en) * 2010-10-27 2012-05-03 アルプス電気株式会社 Input device and display device
JP2021511569A (en) * 2018-01-23 2021-05-06 ケンブリッジ タッチ テクノロジーズ リミテッドＣａｍｂｒｉｄｇｅ Ｔｏｕｃｈ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｌｉｍｉｔｅｄ Pressure signal processing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05179628A (en) * 1991-12-27 1993-07-20 Hokubu:Kk Free panel futon-type (japanese mattress type) basket and its execution method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59500177A (en) * 1981-12-17 1984-02-02 ボカ−・ホ−ルディングス・プロプラエタリ−・リミテッド Improvement of floating walkway
JPS60164221A (en) * 1984-02-07 1985-08-27 Nippon Signal Co Ltd:The Position detector
JPS616727A (en) * 1984-06-20 1986-01-13 Nec Home Electronics Ltd Position calibrating method for coordinate input device
JPS61156276A (en) * 1984-12-28 1986-07-15 リズム時計工業株式会社 Running track display unit for vehicle
JPH0336434B2 (en) * 1984-12-28 1991-05-31 Rhythm Watch Co
JPS61166583A (en) * 1985-01-18 1986-07-28 リズム時計工業株式会社 Running track display unit for vehicle
JPH0335671B2 (en) * 1985-01-18 1991-05-29 Rhythm Watch Co
WO2012056795A1 (en) * 2010-10-27 2012-05-03 アルプス電気株式会社 Input device and display device
CN103250119A (en) * 2010-10-27 2013-08-14 阿尔卑斯电气株式会社 Input device and display device
CN103250119B (en) * 2010-10-27 2016-01-06 阿尔卑斯电气株式会社 Input equipment and display device
JP2021511569A (en) * 2018-01-23 2021-05-06 ケンブリッジ タッチ テクノロジーズ リミテッドＣａｍｂｒｉｄｇｅ Ｔｏｕｃｈ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｌｉｍｉｔｅｄ Pressure signal processing

Also Published As

Publication number Publication date
JPS6221126B2 (en) 1987-05-11

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