Secure data transfer on a handheld communications device
US8345866B2 · kind B2 · utility
2Cited by
0References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2009 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Nov 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/061
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A handheld communications device comprises a display device, and a data processor that is in communication with the display device. The data processor is configured to generate an encryption key, and vary a visual output of the display device in accordance with a bit sequence of the encryption key. The varying visual output comprises a sequence of colors rendered on the display device and/or brightness levels output by the display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.