Patent ID: 8153974
Filing Date: 2012-04-10
Classification: A61B,G03B,H04B

Abstract:
1. An electronic device comprising: a receiving device, receiving transmission information from an opposing device by detecting laser light emitted from the opposing device, the opposing device provided with a first emission unit for emitting laser light and with a first modulating unit for modulating the laser light emitted from the first emission unit according to the transmission information, and by demodulating the transmission information from the detection result of the laser light; a separation distance detection unit, determining whether or not there has been a change in the separation distance to the opposing device of a threshold value or above; and a first control unit, issuing a warning or halting emission of the laser light from the opposing device when determination is made by the separation distance detection unit that the separation distance to the opposing device has changed by the threshold value or above.