Serial network fault detection, isolation and restorative device
US5535192A · kind A · utility
11Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1995 |
| Grant date | Jul 9, 1996 |
| Priority date | — |
| Expiry date | Jan 31, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/437
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A serial network fault isolation device for use in a network hub has receive and transmit buffers connected to the network. An isolation switch which allows the receive buffer to receive network signals while the transmit buffer sends signals such as media access control (MAC) frames supplied by the hub processor. A decoder connected to the receive buffer recognizes received (MAC) frames and interrupts the hub processor which reads the MAC frame. An idle character generator also under control of the hub processor is used to synchronize the circuit when the hub processor inserts the fault isolation device in the network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.