摘要:
A device, system, and computer-readable medium for an interactive whiteboard including an interface which receives a first control signal from a touch-sensitive display surface and a second control signal from a codec, the first control signal identifying a position on the touch-sensitive display surface, and the second control signal identifying a codec setting of the codec; and a processor which calculates, based on the first control signal and the second control signal, a corresponding position on a display screen of a computing device to the position on the touch-sensitive display surface, and which sends the corresponding position to the computing device.