Network interface apparatus and method for reducing conflicts through the use of times
US5378067A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1993 |
| Grant date | Jan 3, 1995 |
| Priority date | — |
| Expiry date | Sep 24, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/387
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network interface circuit is interconnected to a network terminal to enable the network terminal to communicate with other network terminals on a local terminal network. The network interface circuit includes an RS-485 transceiver including a driver and transmitter function. A status timer 42 controls a status line back to the network so as to indicate to the network terminal when the network is in use. A driver timer is present to automatically enable the driver function of the RS-485 circuit when a start bit is received from the network terminal, the driver timer being designed to insure that RS-485 transmitter function remains active until all the data has been transmitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.