Transcapacitive touch and force sensing in an input device
US10372259B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2016 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Jan 9, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04107
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An example input device for force and proximity sensing includes a plurality of touch electrodes including touch transmitter electrodes and touch receiver electrodes, and a force electrode layer including a plurality of force electrodes. The input device further includes a resilient material layer disposed between the plurality of touch electrodes and the force electrode layer. The input device further includes a processing system coupled to the plurality of touch electrodes and the plurality of force electrodes, the processing system configured to: drive the transmitter electrodes with touch transmitter signals and acquire a transcapacitive proximity measurement from the touch receiver electrodes; and drive the plurality of force electrodes with force transmitter signals and acquire a transcapacitive force measurement from either the touch transmitter electrodes or the touch receiver electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.