| 摘要 |
In an interface circuit having a transmitting side circuit, a receiving side circuit and a transmission path connecting the transmitting side circuit and the receiving side circuit in a transmission system for transmitting a predetermined signal between the transmitting and receiving sides, the receiving side circuit has a receiver circuit having threshold control section for independently controlling a logical threshold value corresponding to rise of a received transmitting signal from low level to high level and a logical threshold value corresponding to fall of the received transmitting signal from high level to low level, and a control circuit for controlling the logical threshold values of the receiver circuit through the threshold control section in response to a voltage change in the transmitting signal.
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