Video signal transmission switching apparatus

A video signal switching apparatus, connected between a plurality of video signal source devices and a display device, the video signal switching apparatus comprising:

• a controller;
• a plurality of USB Type-C interfaces, coupled to the controller, and configured to be respectively coupled to the plurality of video signal sources, wherein each USB Type-C interface includes at least one specific channel;
• a video output interface, which is separate from the plurality of USB Type-C interfaces, coupled to the controller, and configured to be coupled to the display device;
• and
• a switching module, coupled at one end to the specific channels of the plurality of USB Type-C interfaces and at another end to the video output interface,
• wherein the switching module is configured to detect a specific signal generated by the display device, and based thereon, to generate a pre-defined signal on at least one of the specific channels of the plurality of USB Type-C interfaces, and wherein the controller re-performs handshaking with a corresponding one of the plurality of video signal sources in response to detecting the pre-defined signal on the at least one specific channel.

A video signal switching apparatus, connected between a plurality of video signal source devices and a plurality of display devices, the video signal switching apparatus comprising:

• a controller;
• a plurality of USB Type-C interfaces, coupled to the controller, and configured to be respectively coupled to the plurality of video signal sources, wherein each USB Type-C interface includes at least one specific channel;
• a plurality of video output interfaces, which are separate from the plurality of USB Type-C interfaces, coupled to the controller, and configured to be respectively coupled to the plurality of display devices;
• and
• a switching module, coupled at one end to the specific channels of the plurality of USB Type-C interfaces and at another end to the plurality of video output interfaces,
• wherein the switching module is configured to detect a specific signal generated by at least one of the plurality of display devices, and based thereon, to generate a pre-defined signal on at least one of the specific channels of the plurality of USB Type-C interfaces, and wherein the controller re-performs handshaking with a corresponding one of the plurality of video signal sources in response to detecting the pre-defined signal on the at least one specific channel.