Haptic display with simultaneous sensing and actuation
US10379616B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 20, 2015 |
| Grant date | Aug 13, 2019 |
| Priority date | — |
| Expiry date | Feb 20, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0445
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Touch interface devices and methods for producing multi-point haptics utilizing simultaneous sensing and actuation are disclosed. In one configuration, one or more electrodes connected to a front surface of a substrate are arranged in a pattern and connected to an electronic controller configured to produce a haptic effect by applying one or more voltages to the electrodes, and measure the locations of one or more touch points by applying one or more voltages to the electrodes. In another configuration the electronic controller is configured to produce a haptic effect by applying positive and/or negative voltages to the electrodes, and measure the locations of one or more touch points by applying positive and/or negative voltages to the electrodes. Also disclosed is a method for using a single set of electrodes on a substrate of a touch interface to simultaneously produce haptic effects on the substrate and measure finger locations relative to the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.