| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication device capable of executing signal transmission and reception by a voltage or a current with high accuracy.SOLUTION: A communication device 10 which executes transmission and reception of a signal to/from a communication target 2 through a transmission path 11 disposed between the communication device 10 and the communication target 2, includes: a voltage detection unit 12 for detecting voltages V1, V2 at the transmission path 11 output from the communication target 2 as each voltage signal from the communication target 2; a current conduction unit 13 for making a current conduct to the transmission path 11 as a current signal to the communication target 2; and current maintenance means 14, SW1 and SW2 for maintaining the magnitude of the current made to conduct by the current conduction unit 13 when the voltage detected by the voltage detection unit 12 varies while the current is made to conduct by the current conduction unit 13. |
