Acquiring multiple capacitive partial profiles for interleaved capacitive sensing
US9678599B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 1, 2016 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Nov 1, 2036 |
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 operating a plurality of sensor electrodes for capacitive sensing. The method includes acquiring a first capacitive partial profile by driving a first 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 a second 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 capacitive partial profile and the second capacitive partial profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.