Touch interface device having an electrostatic multitouch surface and method for controlling the device
US10379655B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2017 |
| Grant date | Aug 13, 2019 |
| Priority date | — |
| Expiry date | Jul 20, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04113
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch interface device comprising a touch surface, a first electrode coupled with the touch surface, a second electrode coupled with the touch surface, where when an appendage of an operator touches the touch surface above both the first electrode and the second electrode a first actuation electrical potential from the first electrode and a second actuation electric potential from the second electrode establish electric fields that pass from one of the first and second electrodes directly through the outermost layer of the appendage and return to the other of the first and second electrodes via the outermost layer of the appendage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.