Patent ID: 8487674

Claim:
A reset circuit comprising: a first connection jack to connect to a first power supply to receive power from a first power supply, wherein the first power supply provides voltage to a processing integrated circuit (IC); a second connection jack to connect to a second power supply to receive power from a second power supply, wherein the second power supply provides voltage different from the voltage provided by the first power supply; a reset IC electrically connected to the first connection jack and to reset the processing IC; a voltage response module electrically connected to the second connection jack, to output a first response signal when voltage provided by the second power supply is abnormal, and output a second response signal when the voltage provided by the second power supply is normal; and a control module electrically connected to the voltage response module and the reset IC, to output a first voltage which is less than the voltage provided by the first power supply when the voltage response module outputs a first response signal, and output a second voltage which is equal to the voltage provided by the first power supply when the voltage response module outputs a second response signal; wherein when the voltage received by the reset IC is changed from the first voltage to the second voltage, the reset IC outputs a reset signal to reset the processing IC.