Self-capacitence sensor and sensor array sensitivity calibration method using secondary mutual capacitence measurements
US10572087B2 · kind B2 · utility
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28Claims
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Key dates
| Filing date | Jul 26, 2018 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | Jul 26, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/960705
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods are disclosed for using a combination of mutual and self-capacitance sensors to determine when an object, such as a finger, has made contact with a controller, regardless of the size of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.