Encrypting touch-sensitive display
US8456429B2 · kind B2 · utility
6Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2009 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Mar 29, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/83
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A hardware encryption device comprises: a touch panel controller; and a cryptographic engine in communication with the touch panel controller. The touch panel controller receives co-ordinates from the cryptographic engine corresponding to an area on a touch panel selected by a user. The cryptographic engine is operable to discriminate between a selection in a secure area on a screen and a selection in a non-secure area on a screen, and to action the selection differently depending on whether the selection is in a secure area or a non-secure area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.