WO2011060114A3 - Touch sensitive device using threshold voltage signal - Google Patents
Touch sensitive device using threshold voltage signal Download PDFInfo
- Publication number
- WO2011060114A3 WO2011060114A3 PCT/US2010/056297 US2010056297W WO2011060114A3 WO 2011060114 A3 WO2011060114 A3 WO 2011060114A3 US 2010056297 W US2010056297 W US 2010056297W WO 2011060114 A3 WO2011060114 A3 WO 2011060114A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- touch sensitive
- threshold voltage
- sensitive device
- voltage signal
- receive
- Prior art date
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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
- G06F3/04184—Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally
-
- 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
- G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
-
- 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
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
Abstract
A touch sensitive apparatus having a plurality of drive electrodes and a plurality of receive electrodes, the drive electrodes and receive electrodes capacitively coupled to each other. A touch measurement circuit configured to identify touch events on the touch sensitive device by comparing a first time period to a second time period. The first time period can be, for example, representative of a length of time a periodic receive signal carried by a receive electrode is above or below a threshold voltage level.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010800518735A CN102763060A (en) | 2009-11-16 | 2010-11-11 | Touch sensitive device using threshold voltage signal |
EP10830691A EP2502133A2 (en) | 2009-11-16 | 2010-11-11 | Touch sensitive device using threshold voltage signal |
JP2012538962A JP2013511094A (en) | 2009-11-16 | 2010-11-11 | Touch-sensitive device using threshold voltage signal |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/618,874 US8773366B2 (en) | 2009-11-16 | 2009-11-16 | Touch sensitive device using threshold voltage signal |
US12/618,874 | 2009-11-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011060114A2 WO2011060114A2 (en) | 2011-05-19 |
WO2011060114A3 true WO2011060114A3 (en) | 2011-10-13 |
Family
ID=43992388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2010/056297 WO2011060114A2 (en) | 2009-11-16 | 2010-11-11 | Touch sensitive device using threshold voltage signal |
Country Status (6)
Country | Link |
---|---|
US (1) | US8773366B2 (en) |
EP (1) | EP2502133A2 (en) |
JP (1) | JP2013511094A (en) |
CN (1) | CN102763060A (en) |
TW (1) | TW201140410A (en) |
WO (1) | WO2011060114A2 (en) |
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Also Published As
Publication number | Publication date |
---|---|
US8773366B2 (en) | 2014-07-08 |
JP2013511094A (en) | 2013-03-28 |
US20110115717A1 (en) | 2011-05-19 |
CN102763060A (en) | 2012-10-31 |
TW201140410A (en) | 2011-11-16 |
EP2502133A2 (en) | 2012-09-26 |
WO2011060114A2 (en) | 2011-05-19 |
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