Patent ID: 8552762

Claim:
A wire-OR matching circuit having low power consumption, comprising: an input inverter for inverting an input-enabling signal to generate a middle signal; a power switch coupled between the input inverter and a first voltage source for controlling the first voltage source to power the input inverter according to a power switch control signal; wherein when the power switch control signal represents “turn on,” the first voltage source powers the input inverter through the power switch; a logic processor for receiving a periodic pulse signal and an output-enabling signal, and outputting the power switch control signal according thereto; wherein when the periodic pulse signal represents “turn on,” the power switch control signal represents “turn on;” wherein when the periodic pulse signal represents “turn off” and the output-enabling signal represents “not enabled,” the power switch control signal represents “turn off;” wherein when the periodic pulse signal represents “turn off” and the output-enabling signal represents “enabled,” the power switch control signal represents “turn on;” wherein the periodic pulse signal represents “turn on” each one predetermined period, and keeps a predetermined pulse width; a disabling module for controlling the middle signal to represent a first predetermined logic according to a control signal; wherein when the control signal represents “disabled” or the input-enabling signal represents “not enabled,” the middle signal represents the first predetermined logic; wherein when the control signal represents “not disabled,” and the input-enabling signal represents “enabled,” the middle signal represents a second predetermined logic; and an output inverter for inverting the middle signal to generate the output-enabling signal; wherein when the middle signal represents the first predetermined logic, the output-enabling signal represents “not enabled;” wherein when the middle signal represents the second predetermined logic, the output-enabling signal represents “enabled”.