| 摘要 |
A method for operating a KVM switch with independent OSD and control channels comprises the steps of: receiving a functional instruction from the operation and control device; outputting a switch signal to turn off the picture of the selected computer, and starting the channel for the OSD signals; retrieving a pre-stored OSD background picture, and outputting the OSD background video signal and the control command to the OSD processing chip and OSD video switching circuit, and displaying via the monitor; inputting a functional instruction to select an OSD operation picture; outputting the selected OSD operating picture to the OSD processing chip and then to the monitor; inputting a functional instruction to stop the OSD operation; the OSD control system unit enabling the OSD video switching circuit to turn off the channel of the OSD signals, and controlling to switch back to the picture of the computer. |
