Method and apparatus for active isolation of communications ports
US7117282B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2004 |
| Grant date | Oct 3, 2006 |
| Priority date | — |
| Expiry date | Sep 12, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/385
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for isolating communications ports that allows access to a communications system for status and/or maintenance purposes via one communications port while preventing access to same system via the other remaining communications ports are disclosed. The isolation is achieved by an active isolation circuit that precludes a communication with the communication system as long as a signal generated by that communication system indicates that the port should be actively isolated. One preferred embodiment uses the Data Terminal Ready (DTR) signal as an input to the active isolation circuit to actively isolate the selected communication ports. This abstract is provided as a tool for those searching for relevant disclosures, and not as a limitation on the scope of the claims.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.