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

Claim 5:
6. A method for identifying video signal source, comprising:
transmitting a first video data and a first identification code to a receiver control unit of a receiver device by a first transmitter device;
combining the first video data and a first identification image corresponding to the first identification code as a first combined video data by the receiver control unit of the receiver device;
outputting the first combined video data to a display device by the receiver control unit of the receiver device; and
transmitting a second video data and a second identification code by a second transmitter device, combining the second video data and a second identification image corresponding to the second identification code as a second combined video data by the receiver control unit of the receiver device, 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 the display device by the receiver control unit of the receiver device;
wherein the source of the first video data is an information processing device, and the first identification code is a network IP address of the information processing device, a hardware serial number after manufacture of the first transmitter device, or a obtained user's personal information when the information processing device executes a communication software;
wherein 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 first prompt instruction to the first transmitter device.