Acquiring multiple capacitive partial profiles with orthogonal sensor electrodes
US9501169B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 2014 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Jul 31, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04108
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments include a method, input device, and processing system for driving a plurality of sensor electrodes for capacitive sensing. The method includes acquiring a first capacitive partial profile by driving a capacitive sensing signal onto a first sensor electrode of a first plurality of sensor electrodes while driving a second sensor electrode of the first plurality of sensor electrodes with a substantially constant voltage. The method further includes acquiring a second capacitive partial profile by driving the capacitive sensing signal onto the second sensor electrode while driving the first sensor electrode with the substantially constant voltage, and determining a first capacitive profile based on at least the acquired first and second capacitive partial profiles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.