Portable data support with watermark function
US9076007B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 3, 2006 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Sep 5, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A portable data carrier (1) includes a non-volatile memory (11), a processor (15) and a watermark application (131) executable by the processor (15) which is also stored on the data carrier (1). The watermark application (131) is configured to check (152) data (110, 140) stored on the data carrier (1) or data intended to be stored on the data carrier (1) as to the presence of a digital watermark, or to mark (151) such data (110, 140) with a digital watermark. The check (152) or marking (151) is carried out on the data carrier (1) and after the check (152) or marking (151) the checked or marked data (110, 140) are stored in the non-volatile memory (11) in order to remain there for an indefinite time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.