Encrypting image data based on paper fiber properties, printing encrypted image, and decrypting encrypted image
US8031377B2 · kind B2 · utility
7Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2008 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Dec 21, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/3281
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image forming apparatus includes a paper fiber reading unit that reads fiber properties of a paper sheet; an encryption unit that encrypts at least a part of an input image based on the fiber properties read by the paper fiber reading unit; and a printing unit that prints an encrypted image portion encrypted by the encryption unit and an image including information representing the fiber properties read by the paper fiber reading unit on the paper sheet whose fiber properties are read by the paper fiber reading unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.