Adaptive thresholding for touch screen input
US9310919B2 · kind B2 · utility
1Cited by
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13Claims
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Key dates
| Filing date | Sep 11, 2014 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Oct 18, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04111
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An adaptive threshold approach is applied to detect true touch signals and filter out increased noise signals. More specifically, statistics regarding the signals from a touch screen are used to create a touch signal threshold that changes with the statistics of the touch signals. Accordingly, the threshold can automatically move higher in high noise situations and lower in low noise situations. So configured, fewer noise signals are erroneously interpreted as touches for the device associated with the touch screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.