| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of electrooptical converters and optic/electric converters at the time of using a feed forward system for compensating distortion in an optical communication system using a TDD (time division duplex) system transmitting and receiving with different timings on the same frequency. SOLUTION: Switches 31 and 32 controlled by TDD control circuits 101 and 102 are provided in order to share optical transmission lines 52 and 53 by incoming and outgoing lines concerning opposing electrooptical converters 1 and 2. An the time of transmitting a signal to the converter 2 from the converter 1, the switches 31 and 32 are switched to make an error removing loop 200. |
