Input device and method with pressure-sensitive layer
US9383881B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2010 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Aug 7, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0447
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Devices and methods are provided that facilitate improved input device performance. Specifically, the devices and methods facilitate input using a pressure-sensitive layer whose electrical admittivity changes in response to pressure applied to a touch surface. An input device is provided that comprises a plurality of sensor electrodes including a set of primary sensor electrodes and a set of secondary sensor electrodes. Each primary sensor electrode is electrically coupled to at least one secondary sensor electrode to form a set of electrical admittances. In one embodiment, the pressure-sensitive layer is located between the sensor electrodes and the touch surface, such that changes in the admittivity of the pressure-sensitive layer in response to pressure on the touch surface cause corresponding changes in the admittances between the primary and secondary sensor electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.