| 摘要 |
PROBLEM TO BE SOLVED: To provide the space light transmitter that sends light efficiently. SOLUTION: The transmitter sends a signal by light projected in space between transmitters connected by a wired LAN. The transmitter is provided with a transmission discrimination means that discriminates whether or not a data signal is sent to an opposite device, a data storage section 10 that stores temporarily transmission data, a comparator 8 that compares the transmission data with received data and an output control section 9 that stops an output of the data to the LAN when the comparison of the transmission data and the received data indicates coincidence. In the case of transmission where the transmission discrimination means discriminates the transmission of the data signal to an opposite device, when the comparator 8 compares the transmission data with the received data and discriminates the coincidence, the output control section 9 stops output of data to the wired LAN. |
