US20030067447A1 - Touch screen with selective touch sources - Google Patents

Touch screen with selective touch sources Download PDF

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Publication number
US20030067447A1
US20030067447A1 US10/052,695 US5269502A US2003067447A1 US 20030067447 A1 US20030067447 A1 US 20030067447A1 US 5269502 A US5269502 A US 5269502A US 2003067447 A1 US2003067447 A1 US 2003067447A1
Authority
US
United States
Prior art keywords
touch
touch sensor
contact point
user
switch
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.)
Abandoned
Application number
US10/052,695
Other languages
English (en)
Inventor
Bernard Geaghan
Robert Moshrefzadeh
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.)
3M Innovative Properties Co
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US10/052,695 priority Critical patent/US20030067447A1/en
Assigned to 3M INNOVATIVE PROPERTIES COMPANY reassignment 3M INNOVATIVE PROPERTIES COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GEAGHAN, BERNARD O., MOSHREFZADEH, ROBERT S.
Priority to PCT/US2002/019949 priority patent/WO2003007227A2/en
Priority to KR1020047000236A priority patent/KR100908942B1/ko
Priority to AT02744578T priority patent/ATE475146T1/de
Priority to EP02744578A priority patent/EP1405253B1/en
Priority to CA002452339A priority patent/CA2452339A1/en
Priority to CNB02813687XA priority patent/CN1290050C/zh
Priority to JP2003512915A priority patent/JP4167174B2/ja
Priority to DE60237083T priority patent/DE60237083D1/de
Priority to TW091114527A priority patent/TWI223201B/zh
Publication of US20030067447A1 publication Critical patent/US20030067447A1/en
Priority to US11/179,185 priority patent/US7453444B2/en
Priority to JP2005328325A priority patent/JP4413183B2/ja
Priority to US12/254,339 priority patent/US8159472B2/en
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K11/00—Methods or arrangements for graph-reading or for converting the pattern of mechanical parameters, e.g. force or presence, into electrical signal
    • G06K11/06—Devices for converting the position of a manually-operated writing or tracing member into an electrical signal
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0444—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single conductive element covering the whole sensing surface, e.g. by sensing the electrical current flowing at the corners
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger

Definitions

  • Electrodes 220 are bonded to and electrically connected with conductive surface 213 . Electrodes 220 serve two purposes: first, they connect the conductive surface to amplifiers 222 through wires 224 ; and second, the electrodes are arranged around the edge of conductive surface 213 in a pattern that distributes the current flowing in the conductive surface in a linear, orthogonal flow.
  • the construction of capacitive sensors in electrode patterns is known to those skilled in the art, as disclosed in U.S. Pat. Nos. 4,198,539 and 4,371,746, both to Pepper, Jr.
  • Processor 216 may send position information to a CPU 242 for further processing.
  • Typical magnitudes of electrical parameters for the touch systems described above, using features of touch system 400 as examples, are: for voltage 427 , about 1 to 30 V peak-to-peak at 10 kHz to 200 kHz; for voltage 454 , about 1 to 30 V peak-to-peak at 10 kHz to 200 kHz; for voltage 464 , 1 to 30 V peak to peak at 10 kHz to 200 kHz; for touch capacitance 430 , about 100 to 2000 pf; and for body-to-ground impedance 436 , about 50 to 2000 pf with a resistance typically less than about 100 ⁇ if a user makes direct electrical contact with ground 438 .
  • Body impedance 434 is typically in the range of about 20 to 300 k ⁇ .
  • signal modifiers 452 and 466 may adjust the phase relationship of voltages 454 and 464 relative to voltage 427 and current measuring devices 428 , 450 and 462 may make phase sensitive current measuring devices.
  • An alternative to using different voltage phases as a way to distinguish between voltage signals is to use voltage signal frequencies (as mentioned throughout). If frequencies were used for this purpose, frequency adjusters would replace phase shifters and current measuring devices would make frequency sensitive current measurements rather than phase sensitive current measurements.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Computer Hardware Design (AREA)
  • Artificial Intelligence (AREA)
  • Position Input By Displaying (AREA)
  • Electronic Switches (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Air Bags (AREA)
  • Input From Keyboards Or The Like (AREA)
  • User Interface Of Digital Computer (AREA)
  • Push-Button Switches (AREA)
  • Electrophonic Musical Instruments (AREA)
US10/052,695 2001-07-09 2002-01-18 Touch screen with selective touch sources Abandoned US20030067447A1 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US10/052,695 US20030067447A1 (en) 2001-07-09 2002-01-18 Touch screen with selective touch sources
KR1020047000236A KR100908942B1 (ko) 2001-07-09 2002-06-24 선택적 터치 소스를 구비하는 터치 스크린
CNB02813687XA CN1290050C (zh) 2001-07-09 2002-06-24 有选择性触摸源的触摸屏
DE60237083T DE60237083D1 (de) 2001-07-09 2002-06-24 Berührungsempfindlicher bildschirm mit selektiven berührungsquellen
AT02744578T ATE475146T1 (de) 2001-07-09 2002-06-24 Berührungsempfindlicher bildschirm mit selektiven berührungsquellen
EP02744578A EP1405253B1 (en) 2001-07-09 2002-06-24 Touch screen with selective touch sources
CA002452339A CA2452339A1 (en) 2001-07-09 2002-06-24 Touch screen with selective touch sources
PCT/US2002/019949 WO2003007227A2 (en) 2001-07-09 2002-06-24 Touch screen with selective touch sources
JP2003512915A JP4167174B2 (ja) 2001-07-09 2002-06-24 選択的タッチソースを備えるタッチスクリーン
TW091114527A TWI223201B (en) 2001-07-09 2002-07-01 Touch screen with selective touch sources
US11/179,185 US7453444B2 (en) 2001-07-09 2005-07-12 Touch screen with selective touch sources
JP2005328325A JP4413183B2 (ja) 2001-07-09 2005-11-14 車両タッチスクリーン装置とその制御方法
US12/254,339 US8159472B2 (en) 2001-07-09 2008-10-20 Touch screen with selective touch sources

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30400701P 2001-07-09 2001-07-09
US10/052,695 US20030067447A1 (en) 2001-07-09 2002-01-18 Touch screen with selective touch sources

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/179,185 Continuation US7453444B2 (en) 2001-07-09 2005-07-12 Touch screen with selective touch sources

Publications (1)

Publication Number Publication Date
US20030067447A1 true US20030067447A1 (en) 2003-04-10

Family

ID=26730952

Family Applications (3)

Application Number Title Priority Date Filing Date
US10/052,695 Abandoned US20030067447A1 (en) 2001-07-09 2002-01-18 Touch screen with selective touch sources
US11/179,185 Expired - Fee Related US7453444B2 (en) 2001-07-09 2005-07-12 Touch screen with selective touch sources
US12/254,339 Expired - Fee Related US8159472B2 (en) 2001-07-09 2008-10-20 Touch screen with selective touch sources

Family Applications After (2)

Application Number Title Priority Date Filing Date
US11/179,185 Expired - Fee Related US7453444B2 (en) 2001-07-09 2005-07-12 Touch screen with selective touch sources
US12/254,339 Expired - Fee Related US8159472B2 (en) 2001-07-09 2008-10-20 Touch screen with selective touch sources

Country Status (10)

Country Link
US (3) US20030067447A1 (enExample)
EP (1) EP1405253B1 (enExample)
JP (2) JP4167174B2 (enExample)
KR (1) KR100908942B1 (enExample)
CN (1) CN1290050C (enExample)
AT (1) ATE475146T1 (enExample)
CA (1) CA2452339A1 (enExample)
DE (1) DE60237083D1 (enExample)
TW (1) TWI223201B (enExample)
WO (1) WO2003007227A2 (enExample)

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WO2003007227A2 (en) 2003-01-23
US8159472B2 (en) 2012-04-17
CN1290050C (zh) 2006-12-13
KR20040015335A (ko) 2004-02-18
ATE475146T1 (de) 2010-08-15
JP4413183B2 (ja) 2010-02-10
JP2004535026A (ja) 2004-11-18
CN1529869A (zh) 2004-09-15
CA2452339A1 (en) 2003-01-23
JP4167174B2 (ja) 2008-10-15
JP2006117242A (ja) 2006-05-11
KR100908942B1 (ko) 2009-07-22
DE60237083D1 (de) 2010-09-02
TWI223201B (en) 2004-11-01
EP1405253B1 (en) 2010-07-21
US7453444B2 (en) 2008-11-18
US20060022959A1 (en) 2006-02-02
EP1405253A2 (en) 2004-04-07
WO2003007227A3 (en) 2003-10-30

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