Patent ID: 9473710
Filing Date: 2016-10-18
CPC Classification: G06F,H04N

Claim Text:
1. A video signal termination detection system, comprising: an input configured to connect to a video driver that produces a video signal having a driver video signal type; an output configured to connect to a video receiver that operates with a receiver video signal type; a detection circuit connected between the input and the output and configured to detect the receiver video signal type of the video receiver and to output a detection signal; a conversion circuit configured to receive the video signal from the video driver and to convert the driver video signal type to the receiver video signal type of the video receiver if the driver video signal type is different from the receiver video signal type of the video receiver; a video interrupt switch configured to interrupt the video signal; a test voltage supply for supplying a test voltage to the system when the video signal is interrupted by the video interrupt switch, the supplying of the test voltage being controlled by at least one test voltage switch; and a controller configured to control at least one of the video interrupt switch, the test voltage switch, and the conversion circuit based on the detection signal received from the detection circuit; wherein the controller is configured to shut off the input, switch on the test voltage, determine the receiver video signal type, disconnect the test voltage, and reconnect the input to supply the receiver video signal type to the video receiver.