Calibration for pressure effects on touch sensor panels
US9459738B2 · kind B2 · utility
13Cited by
13References
26Claims
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Key dates
| Filing date | Jun 6, 2012 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | Oct 21, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch sensor panel which has been calibrated to be insensitive to effects from an external force applied to the panel is provided. Touch sense circuitry settings are adjusted during a calibration procedure so that when a force is exerted on the device, no change in the touch signal DC level is seen. In this way, the ability of the touch sensor panel to detect touch or proximity events is not affected by a force being applied to the panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.