Network system enabling transmission control
US7047407B2 · kind B2 · utility
22Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2002 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | May 28, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/2803
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network system capable of preventing the leakage of a confidential file by an inadvertent act of a transmitting party and capable of meeting the requirement for an arbitrary file format is disclosed. A label indicating a security level (“confidential” or “unclassified”) is attached to the file in a client terminal, which transmits the labeled file outside. A transmission management program on a gateway server checks the label of the file, and in the case where the security level is “unclassified”, transmits the file to an external network. Also, a label management program manages the labeled file in the client terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.