Method and apparatus for placing data onto plain paper
US5337362A · kind A · utility
161Cited by
5References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1993 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | Apr 15, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K1/121
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for placing digital data on plain paper. One embodiment of the present invention allows for the digital data to undergo encryption before being placed on the plain paper. In one embodiment, a photocopier is used for transferring digital encrypted data to and from a plain piece of paper. The photocopier allows digital data to be stored onto plain paper after encryption, such that the digital data is secure. The photocopier also includes a device to recognize the encrypted digitized pixels on the page such that they may be decrypted and the original image reproduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.