Elastomeric wave tactile interface
US8253703B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 2009 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | May 4, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/014
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A tactile interface includes a plurality of individually controllable drivers positioned about a perimeter of a tensioned elastomeric material. Each driver includes a first electrode, a second electrode, and a piezoelectric material. A top surface of the first electrode is coupled to the tensioned elastomeric material. The piezoelectric material is disposed between a top surface of the second electrode and a bottom surface of the first electrode. Driver circuitry can apply control information to each of the plurality of individually controllable drivers to produce a wave pattern in the tensioned elastomeric material. Some example methods of providing a tactile image on a tactile interface include producing a time-varying potential difference across the top electrode and the bottom electrode of the drivers so that a standing wave pattern can be created in the elastomeric material. The tactile image can be formed by modulating a subset of the plurality of drivers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.