Patent ID: 8015334

Claim:
A power-on signal transmitting system, comprising: a first electronic device comprising a power-on control unit; a second electronic device comprising a power-on detection unit; and a cable comprising: at least one information wiring coupled between the first electronic device and the second electronic device, the at least one information wiring being used for transmitting an information signal between the first electronic device and the second electronic device; and a signal level wiring coupled to the power-on control unit and the power-on detection unit respectively, the signal level wiring being used for providing a first reference level when the second electronic device is at a power-on state; wherein the power-on control unit of the first electronic device is used for sending a power-on signal to the second electronic device through the signal level wiring of the cable when the second electronic device is at a power-off state, the power-on detection unit of the second electronic device sensing the power-on signal and switching the second electronic device from the power-off state to the power-on state.