Displaying useful information on a display element
US8912997B2 · kind B2 · utility
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52Claims
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Key dates
| Filing date | Jan 27, 2009 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Jul 23, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F9/30
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
For displaying useful information (25) on a display element (21) of a terminal device (20), display data comprising useful information (25) are displayed (S2) on the display element (21), and light signals (18) are emitted (S3) to the display element (21) by a light signal unit (12) of a portable data carrier (10), wherein the display data are so displayed (S2) on the display element (21), and the light signals (18) so emitted (S3) to the terminal device (20), that a viewer of the display element (21) can recognize (S5) the useful information (25).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.