Interface module with protection circuit and method of protecting an interface
US6167321A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1998 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Jun 25, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4077
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An interface module for a communications system includes a processing device and a peripheral device which are interconnected through a communications bus. The interface module includes a transceiver interface and a protection circuit. The protection circuit is positioned between the transceiver interface and a port configured to receive a signal from a terminal of the communications bus. The protection circuit is further configured to automatically provide a protection voltage to the transceiver interface if a power supply for the transceiver interface is inactive. The protection voltage is derived from the signal received at the terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.