FIELD: physics.
SUBSTANCE: interactive system, comprising: a transmitter configured to transmit the optical signal; and a projector, wherein the projector includes: a signal intensity setting unit, in which the information of the synchronization signal intensity is set; a signal intensity control unit configured to control the synchronization signal intensity based on the setting parameters of the signal intensity setting unit; a synchronization signal transmitting unit configured to transmit the synchronization signal; and an image capture unit configured to capture the optical signal image transmitted from the transmitter, and the transmitter includes: a receiving unit configured to receive the synchronization signal; and an optical signal transmitting unit configured to transmit the optical signal synchronously with the synchronization signal received by the receiving unit, wherein the projector further includes a synchronization signal receiving unit configured to receive the synchronization signal, and when the synchronization signal receiving unit receives the second synchronization signal from another projector, the synchronization signal transmitting unit transmits the synchronization signal synchronously with the second synchronization signal.
EFFECT: reducing synchronization signal interference with another projector by changing the synchronization signal intensity.
7 cl, 6 dwg
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