Patent ID: 10389443

Abstract:
Markers 200-0˜200-3 emit light, according to control by as server 100, in accordance with a light emission pattern. On the other hand, a mobile device 300 distinguishes a reference signal and a numerical signal based on a mode of light emission of the markers 200-0˜200-3, and displays, upon receiving the numerical signal, a numerical value at a position of the marker 200 corresponding to the numerical signal in a frame, and displays, upon receiving the reference signal, ongoing reception of an ID at a position of the marker 200-0 corresponding to the reference signal in the frame. Furthermore, the mobile device 300 displays, at timing when all of the reference signals and the numerical signals are received, at a position of the marker 200-0 in the frame, a plurality of numerical values and units of the plurality of numerical values being integrated.