Reducing ion-migration and corrosion in electrodes
US9244574B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2012 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | May 28, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04107
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention generally provide a processing system for an input device including a sensor module having sensor circuitry. The sensor module may be coupled to transmitter electrodes, receiver electrodes, and a shield electrode. The sensor module may be configured for transmitting transmitter signals with the transmitter electrodes, receiving resulting signals with the receiver electrodes, and transitioning the shield electrode from a first voltage to a second voltage during a non-sensing time period. The resulting signals may include effects which correspond to the transmitter signals. The input device may further include a determination module configured for determining positional information for an input object based at least in part on the resulting signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.