Communication system and communication apparatus
US6009528A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 1996 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | Dec 30, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99939
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication system includes a communication apparatus for connecting a first network to a second network, wherein a packet transmitted by a transmitting station in the first network by way of the communication apparatus to a receiving station in the second network is relayed selectively by the communication apparatus to the second network. First authentication information is created, in part, according to predetermined key information and the packet is transmitted with the header information thereof including the first authentication information. First authentication information in the header information of the packet is compared with second authentication information created, in part, according to predetermined key information, by the communication apparatus in order to determine whether or not the packet is to be relayed to the second network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.