Patent ID: 7231402
Filing Date: 2007-06-12
Classification: H04N,Y10S

Abstract:
1. Video signal switching apparatus for supplying video signals from a one of a plurality of video sources to a display device, the apparatus including: a digital video signal switching circuit including a plurality of source digital video interface each connectable to a one of the plurality of video sources, a display digital video interface connectable to the display and a digital video data switch selectively providing a video signal path between the display interface and a one of the source interfaces; an analogue video switching circuit including a plurality of source analogue video interfaces each connectable to a one of the plurality of video sources, a monitor analogue video interface connectable to the display and an analogue video data switch selectively providing a video signal path between the monitor interface and a one of the source interfaces; wherein the analogue and digital video interfaces are associated in pairs; an analogue video source connected to a source analogue video interface of a first pair; a digital video source connected to a source digital video interface of a second pair not the same as the first pair; and a display connected to both the monitor analogue and digital interfaces such that the display will display an image for only a one of the video sources at a time; and control circuitry which provides a selection signal causing the analogue and digital video switching circuits to switch in synchrony.