Optical Transmission Method

摘要

A first communication unit, acting as the initiator of the communication, outputs an optical wake-up pulse sequence (5), and is ready to receive optical response pulses (8) from a second communication unit reacting to the wake-up pulse sequence. When these pulses are received, the first communication unit stops transmitting the wake-up pulse sequence. The wake-up sequence comprises regular light-free signal states in which the second communication unit sends a response pulse sequence.