JPH02500225A - ループバック導体グリッドを有するデジタイザシステム - Google Patents

ループバック導体グリッドを有するデジタイザシステム

Info

Publication number
JPH02500225A
JPH02500225A JP63502992A JP50299288A JPH02500225A JP H02500225 A JPH02500225 A JP H02500225A JP 63502992 A JP63502992 A JP 63502992A JP 50299288 A JP50299288 A JP 50299288A JP H02500225 A JPH02500225 A JP H02500225A
Authority
JP
Japan
Prior art keywords
coil
conductor
signal
polarity
conductors
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
JP63502992A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0545977B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
ランドメイヤー，ウォルド，ローレンス
Original Assignee
カルカンプ　インコーポレーテッド
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 カルカンプ　インコーポレーテッド filed Critical カルカンプ　インコーポレーテッド
Publication of JPH02500225A publication Critical patent/JPH02500225A/ja
Publication of JPH0545977B2 publication Critical patent/JPH0545977B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
JP63502992A 1987-03-16 1988-03-14 ループバック導体グリッドを有するデジタイザシステム Granted JPH02500225A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26,217 1987-03-16
US07/026,217 US4734546A (en) 1987-03-16 1987-03-16 Digitizer system with loopback conductor grid

Publications (2)

Publication Number Publication Date
JPH02500225A true JPH02500225A (ja) 1990-01-25
JPH0545977B2 JPH0545977B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-07-12

Family

ID=21830533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63502992A Granted JPH02500225A (ja) 1987-03-16 1988-03-14 ループバック導体グリッドを有するデジタイザシステム

Country Status (8)

Country Link
US (1) US4734546A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0362211B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPH02500225A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1279119C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3871393D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
HK (1) HK97092A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SG (1) SG96992G (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
WO (1) WO1988007247A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3889182T2 (de) * 1987-08-24 1994-10-13 Wacom Co Ltd Koordinateneingabesystem mit einem Eingabeschreibstift.
FR2647240B1 (fr) * 1989-05-22 1995-06-16 Schlumberger Ind Sa Table a numeriser
US4990726A (en) * 1989-11-07 1991-02-05 Summagraphics Corporation Digitized controller for position locator
US4996393A (en) * 1990-04-03 1991-02-26 Summagraphics Corporation Digitizer tablet with split-current conductor array
US5194699A (en) * 1990-04-03 1993-03-16 Summagraphics Corporation Digitizer tablet with fixed incremented grid portions
US5051545A (en) * 1990-04-06 1991-09-24 Summagraphics Corporation Digitizer with serpentine conductor grid having non-uniform repeat increment
US5210380A (en) * 1990-04-06 1993-05-11 Summagraphics Corporation Digitizer with serpentine-type conductor grid having uniform conductor repeat increments
US5045645A (en) * 1990-05-22 1991-09-03 Calcomp Inc. Digitizer system with passive pointer
US5124509A (en) * 1991-01-15 1992-06-23 Calcomp, Inc. Digitizer with capacitive and inductive coupling
US5345044A (en) * 1991-04-29 1994-09-06 Calcomp, Inc. Cordless digitizer using electromagnetic locating signals
US5136125A (en) * 1991-05-06 1992-08-04 International Business Machines Corporation Sensor grid for an electromagnetic digitizer tablet
US5134253A (en) * 1991-06-13 1992-07-28 Calcomp, Inc. Digitizer employing loopback conductor pattern using rotation sequencing
US5276282A (en) * 1992-04-15 1994-01-04 International Business Machines Optimal scan sequence for RF magnetic digitizers
US5434372A (en) * 1993-08-19 1995-07-18 Acer Peripherals, Inc. Position detecting apparatus with coils of opposite loop direction
US20030062889A1 (en) * 1996-12-12 2003-04-03 Synaptics (Uk) Limited Position detector
US6249234B1 (en) 1994-05-14 2001-06-19 Absolute Sensors Limited Position detector
US6788221B1 (en) 1996-06-28 2004-09-07 Synaptics (Uk) Limited Signal processing apparatus and method
JP2002502497A (ja) 1997-05-28 2002-01-22 シナプティクス（ユーケー）リミテッド 変換器および製造方法
US5986646A (en) * 1997-07-22 1999-11-16 Ace Cad Enterprise Co., Ltd. Method and apparatus for finding the location of a pointing instrument on a tablet
US6011545A (en) * 1997-07-23 2000-01-04 Numoncis, Inc. Multi-panel digitizer
GB9720954D0 (en) 1997-10-02 1997-12-03 Scient Generics Ltd Commutators for motors
GB9721891D0 (en) 1997-10-15 1997-12-17 Scient Generics Ltd Symmetrically connected spiral transducer
GB9811151D0 (en) 1998-05-22 1998-07-22 Scient Generics Ltd Rotary encoder
US6396005B2 (en) 1998-06-15 2002-05-28 Rodgers Technology Center, Inc. Method and apparatus for diminishing grid complexity in a tablet
DE69911641T2 (de) 1998-11-27 2004-08-05 Synaptics (Uk) Ltd., Harston Positionssensor
US7019672B2 (en) * 1998-12-24 2006-03-28 Synaptics (Uk) Limited Position sensor
EP1412912B1 (en) * 2001-05-21 2008-06-18 Synaptics (UK) Limited Position sensor
GB2403017A (en) * 2002-03-05 2004-12-22 Synaptics Position sensor
WO2003105072A2 (en) * 2002-06-05 2003-12-18 Synaptics (Uk) Limited Signal transfer method and apparatus
GB0317370D0 (en) * 2003-07-24 2003-08-27 Synaptics Uk Ltd Magnetic calibration array
GB0319945D0 (en) * 2003-08-26 2003-09-24 Synaptics Uk Ltd Inductive sensing system
US20080186248A1 (en) * 2007-02-01 2008-08-07 Chia-Jui Yeh Large-Sized Electromagnetic Digital Board With Segmented Frame Antenna
EP1956470A1 (en) * 2007-02-11 2008-08-13 Waltop International Corp. Large-sized electromagnetic digital board with segmented frame antenna
EP2145158B1 (en) 2007-05-10 2018-03-07 Cambridge Integrated Circuits Limited Transducer
RU2413969C1 (ru) * 2009-06-23 2011-03-10 Закрытое Акционерное Общество "Научно-Производственная Коммерческая Фирма "Элтан Лтд" Устройство ввода информации в эвм (дигитайзер)
RU2420783C2 (ru) * 2009-06-26 2011-06-10 Закрытое Акционерное Общество "Научно-Производственная Коммерческая Фирма "Элтан Лтд" Широкоформатное устройство ввода информации в эвм (интерактивная доска)
GB2488389C (en) 2010-12-24 2018-08-22 Cambridge Integrated Circuits Ltd Position sensing transducer
GB2503006B (en) 2012-06-13 2017-08-09 Cambridge Integrated Circuits Ltd Position sensing transducer
CN105204702B (zh) 2015-09-25 2018-04-20 京东方科技集团股份有限公司 电磁电容触摸屏

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819857A (en) * 1971-11-17 1974-06-25 Tokyo Shibaura Electric Co Electromagnetic induction type pattern input apparatus
US4029899A (en) * 1974-11-20 1977-06-14 National Research Development Corporation Position indicator
US4418242A (en) * 1980-03-04 1983-11-29 Fujitsu Limited Coordinate reading apparatus
JPS5921077B2 (ja) * 1981-12-28 1984-05-17 富士通株式会社 座標読取装置
US4423286A (en) * 1982-07-21 1983-12-27 Talos Systems, Inc. Apparatus and method for determining the position of a driven coil within a grid of spaced conductors
US4570033A (en) * 1983-09-09 1986-02-11 Numonics Corporation Polyphase digitizer
US4552991A (en) * 1983-11-03 1985-11-12 Numonics Corporation Absolute position coordinate determining device employing a single phase difference measurement to determine cursor position
US4560830A (en) * 1983-12-22 1985-12-24 Schlumberger Technology Corporation Digitizer tablet with coarse and fine position determination
ES2026845T3 (es) * 1985-12-18 1992-05-16 Aristo Graphic Systeme Gmbh & Co Kg Bandeja de digitalizacion y procedimiento para su activacion.
US4661656A (en) * 1986-01-16 1987-04-28 Kurta Corporation Graphic tablet and method
JPS6344224A (ja) * 1986-08-08 1988-02-25 Seiko Instr & Electronics Ltd 電磁誘導型座標読取装置

Also Published As

Publication number Publication date
JPH0545977B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-07-12
US4734546A (en) 1988-03-29
EP0362211A1 (en) 1990-04-11
SG96992G (en) 1992-12-04
EP0362211A4 (en) 1990-12-05
CA1279119C (en) 1991-01-15
EP0362211B1 (en) 1992-05-20
DE3871393D1 (de) 1992-06-25
WO1988007247A1 (en) 1988-09-22
HK97092A (en) 1992-12-11

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