Multiplex communication system
US4745596A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1986 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Jul 11, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/40273
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A multiplex communication system suitable for use in a vehicle is disclosed. The system comprises a single signal line and a plurality of nodes or communication units connected to the single signal line. Each node is assigned a specific node address and has a microcomputer which includes a transceiver section connected to the signal line for outputting data in the form of a start-stop signal thereto and for receiving data therefrom. The data outputted from each node includes source address data representative of the specific node address of a respective one of the nodes and destination address data representative of the specific node address of one of the nodes to which the data is to be transmitted. Each of the nodes stores the data received from the signal line when the destination address data included in the received data coincides with the node address thereof. The transceiver sections of the nodes cooperate with the signal line to form a preferential circuit wherein one of two signal levels of each of the start-stop signals simultaneously outputted onto the signal line has a priority over the other of the two signal levels. The microcomputer of each of the nodes is so program…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.