Abnormality monitor method and abnormality monitor system in a network
US6154859A · kind A · utility
142Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1998 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | Apr 14, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/0811
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In an abnormality monitor system of a network, when it is determined that a data transmission function is impaired as a data transmission line is broken or an abnormality occurs in a communication IC, a CPU sends abnormality occurrence information indicating abnormality occurrence and the abnormality occurrence point from a slave station unit to a master station unit through a communication line provided separately from the data transmission line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.