WO2002084244A3 - Method and apparatus for force-based touch input - Google Patents

Method and apparatus for force-based touch input Download PDF

Info

Publication number
WO2002084244A3
WO2002084244A3 PCT/US2002/006498 US0206498W WO02084244A3 WO 2002084244 A3 WO2002084244 A3 WO 2002084244A3 US 0206498 W US0206498 W US 0206498W WO 02084244 A3 WO02084244 A3 WO 02084244A3
Authority
WO
WIPO (PCT)
Prior art keywords
capacitor plate
force
disclosed
elastic element
touch
Prior art date
Application number
PCT/US2002/006498
Other languages
French (fr)
Other versions
WO2002084244A2 (en
Inventor
Jerry B Roberts
Original Assignee
3M Innovative Properties Co
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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority to JP2002581948A priority Critical patent/JP2004531716A/en
Priority to KR10-2003-7013450A priority patent/KR20030088061A/en
Priority to EP02713727A priority patent/EP1428004A2/en
Publication of WO2002084244A2 publication Critical patent/WO2002084244A2/en
Publication of WO2002084244A3 publication Critical patent/WO2002084244A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • G06F3/04142—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position the force sensing means being located peripherally, e.g. disposed at the corners or at the side of a touch sensing plate
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F3/0447—Position sensing using the local deformation of sensor cells

Abstract

A force sensor for sensing a touch force applied to a touch surface (103a) is disclosed. The force sensor includes: a first element (106) including an elastic element and a first capacitor plate having a first capacitive surface, the elastic element including at least part of the first capacitor plate; and a second element (105) including a second capacitor plate (114) opposed to the first capacitor plate; wherein transmission of at least part of the touch force through the elastic element (106) contributes to a change in capacitance between the first capacitor plate (106) and the second capacitor plate (114). The elastic element (106) and the first capacitor plate may be integral. Other force sensors and methods for manufacturing said force sensors are also disclosed. Touch location devices suitable for use with the disclosed force sensors are also disclosed.
PCT/US2002/006498 2001-04-13 2002-03-05 Method and apparatus for force-based touch input WO2002084244A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2002581948A JP2004531716A (en) 2001-04-13 2002-03-05 Method and apparatus for force-based touch input
KR10-2003-7013450A KR20030088061A (en) 2001-04-13 2002-03-05 Method and apparatus for force-based touch input
EP02713727A EP1428004A2 (en) 2001-04-13 2002-03-05 Method and apparatus for force-based touch input

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/835,040 2001-04-13
US09/835,040 US20020149571A1 (en) 2001-04-13 2001-04-13 Method and apparatus for force-based touch input

Publications (2)

Publication Number Publication Date
WO2002084244A2 WO2002084244A2 (en) 2002-10-24
WO2002084244A3 true WO2002084244A3 (en) 2004-04-01

Family

ID=25268422

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/006498 WO2002084244A2 (en) 2001-04-13 2002-03-05 Method and apparatus for force-based touch input

Country Status (6)

Country Link
US (3) US20020149571A1 (en)
EP (1) EP1428004A2 (en)
JP (1) JP2004531716A (en)
KR (1) KR20030088061A (en)
CN (1) CN1256653C (en)
WO (1) WO2002084244A2 (en)

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