Capacitive field tuning for detecting touches on objects placed on a touchscreen
US11740710B1 · kind B1 · utility
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2References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 7, 2021 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | Dec 7, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04108
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for capacitive field tuning for detecting touches on objects are disclosed. For example, an identity of an object placed on a touch-sensitive surface is determined and signal impedance characteristics associated with the object are also determined. The signal impedance characteristics may be utilized to determine tuning settings to apply to capacitive sensors such that the capacitive field of the device extends from the touch-sensitive surface to a touch surface of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.