Single-wire transmission interface and single-wire transmission method and power supply system adopting single-wire transmission method

A single-wire transmission interface, comprising:

• a decoder for receiving and decoding a transmission signal to generating a corresponding decoded signal, wherein the transmission signal includes alternating high and low levels, and wherein a time period of one of the high and low levels defines a reference time and a time period of the other of the high and low levels defines a content time;
• the decoder including:
• a first time calculation circuit for calculating the reference time to generate a reference time indication signal;
• a second time calculation circuit for calculating the content time to generate a content time indication signal;
• and
• a comparison circuit for comparing the reference time indication signal with the content time indication signal, to generate the decoded signal.