System and a process for transmission of secure faxes
US5587809A · kind A · utility
23Cited by
6References
1Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 3, 1996 |
| Grant date | Dec 24, 1996 |
| Priority date | — |
| Expiry date | Jan 3, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/3218
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention concerns a system and process for sending secure faxes that include a sending fax machine (20); a receiving fax machine (23); and a registered fax server (21). One of the fax machines is provided with a security module that assures document integrity, produces and verifies digital signatures and combats replays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.