Optical image encryption and decryption processes
US5715316A · kind A · utility
45Cited by
14References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1993 |
| Grant date | Feb 3, 1998 |
| Priority date | — |
| Expiry date | Oct 25, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09C5/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method of encrypting and decrypting images comprising the steps of creation of an encrypted image by alteration of the original image and decrypting the image by means of a decrypting optic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.