Patent ID: 11956563
Assignee: BENQ CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 11:
12. A method for identifying video signal source, comprising:
assigning a first identification code to a first transmitter device and assigning a second identification code to a second transmitter device by a receiver control unit of a receiver device; and
performing the following steps by the receiver control unit of the receiver device when the receiver control unit of the receiver device receives a first video data from the first transmitter device and a second video data from the second transmitter device at the same time:
combining the first video data and a first identification image corresponding to the first identification code as a first combined video data;
combining the second video data and a second identification image corresponding to the second identification code as a second combined video data; and
combining the first combined video data and the second combined video data as a split screen video data and outputting the split screen video data to a display device;

wherein when the first transmitter device transmits the first video data to a second transmission module of the receiver device, the receiver control unit of the receiver device sends a first prompt instruction to request a first indication device of the first transmitter device to show the first identification image;
wherein the source of the first video data is an information processing device, the first transmitter device is connected to the information processing device;
wherein the receiver device, the first transmitter device, and the second transmitter device are portable;
wherein the first video data corresponds to a first video region on a display screen of the display device, a user operation position is provided by a user input device;
wherein whether the user operation position is located in the first video region is determined by the receiver control unit, when it is determined that the user operation position is located in the first video region, the receiver control unit sends a second prompt instruction to the first transmitter device.