| 摘要 |
An optical communication system wherein a light emission circuit operates with reduced power consumption. The optical communication system is used in a communication network wherein communication is had between a control node and plural controlled nodes using light rays amplitude-modulated with carrier modulation signals over 6 MHz. The control node transmits a transmission permission signal to each controlled node, which starts or interrupts light emission with desired transient characteristics by having reference to the transmission permission signal. For example, the amplitude of the infrared light rays is increased or decreased over e.g., a period as indicated at I1. |
