Touch location sensing system and method employing sensor data fitting to a predefined curve
US9201556B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2006 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Feb 1, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and devices for determining the location of a touch implement relative to a touch locating sensing device involve developing touch signals at a touch sensor in response to a touch implement on or near the touch surface. Data associated with the touch signals is fitted to a predefined curve. The predefined curve is preferably defined by a charged sphere near a conducting plane, the charged sphere representative of an end of the touch implement and the conducting plane representative of the touch surface. A location of the touch implement is determined relative to the touch surface using the predefined curve to which the data is fitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.