| 摘要 |
PROBLEM TO BE SOLVED: To improve the transfer rate of the cableless interface by using plural signals. SOLUTION: A parallel signal being a command from a controller 3 is converted into plural optical signals by a transmitter 4 (4a-4d) and polarized into a specific direction by a polarization filter 5 (5a-5d). Then the polarized signal passes only through a specific polarization filter 6 (6a-6d) and an optical signal is converted into an electric signal by a receiver 7 (7a-7d) to operate a controlled device 8. |
