Local area network with fault-checking, priorities and redundant backup
US4847837A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1986 |
| Grant date | Jul 11, 1989 |
| Priority date | — |
| Expiry date | Nov 7, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A redundant error-detecting and correcting local area networked computer system (10) having a plurality of nodes (16) each including a network connector board (20') for connecting to an interfacing transceiver (18) attached to a network cable (12, 14). The system comprises a first network cable (12) disposed along a path to interconnect the nodes. The first cable includes a plurality of first interfacing transceivers. A second network cable (14) includes a plurality of second interfacing transceivers. A plurality of three position switches (48) each having a signal input, three outputs for individual selective connection to the input, and a control input for receiving signals designating which of the outputs is to be connected to the signal input are provided. Master switch (50) is provided for receiving directive signals for outputting addressed switch position signals to the three position switches. Finally, there is a monitor and control computer (30) for monitoring the status of the networked computer system by sending messages to the nodes and receiving and verifying messages therefrom and for sending control signals to the master switch to cause the master switch to cause res…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.