| 摘要 |
PURPOSE: A visible light communications device, system, and method are provided to increase the speed and rate of transmission. CONSTITUTION: A modulation part (12) modulates a transmission signal. A signal processing part processes a received signal. A light-emitting diode (LED) light-emitting part (13) and an LED light-receiving part (21) are individually equipped with a high-power LED. When operated in transmission mode, each of the LED light-emitting part and LED light-receiving part turns on and off the high-power LED according to the modulated transmission signal outputted from the modulation part. When operated in reception mode, each of the LED light-emitting part and LED light-receiving part delivers the received signal corresponding to a received optical signal to the signal processing part. [Reference numerals] (11) Line coding unit; (12) Modulator; (13) LED emitting unit; (21) LED receiving unit (derivative signal); (22) Integrator (demodulating signal); (AA,CC) Data; (BB) Light |
