KVM video and OSD switch
US7889277B2 · kind B2 · utility
0Cited by
24References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2009 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Oct 23, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2370/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A high speed video switch in a KVM system using discrete Radio Frequency (RF) switch circuits. The RF switch circuits are configured into a multiplexed circuit to route video signals from a selected host computer to a target monitor. Voltage converters are used to provide control signals of the proper voltage to the RF switch circuits. Peaking operational amplifiers are used to compensate for the roll-off effect caused by the video connectors. An On Screen Display (OSD) switch using the RF switches is used to rapidly switch between the OSD data and host computer video for display to the target operator control center monitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.