Patent ID: 7928767

Claim:
A method capable of increasing a responding speed of a buffer and prolonging a lifespan of the buffer, comprising: detecting an edge of an input signal of the buffer; triggering a pulse signal with a predetermined period according to the detected edge of the input signal; biasing a voltage-sharing transistor of the buffer by a first voltage; shifting a voltage level of the input signal to the first voltage when the input signal is at a first predetermined voltage level and shifting the voltage level of the input signal to a second voltage when the input signal is at a second predetermined voltage level; transmitting the shifted input signal to a transmitting transistor of the buffer, wherein the transmitting transistor is coupled between a second voltage source and the voltage-sharing transistor, the transmitting transistor receives the second voltage transmitted from the second voltage source, and the voltage-sharing transistor is coupled between an output end of the buffer and the transmitting transistor; combining the shifted input signal with the pulse signal for driving the transmitting transistor of the buffer; and combining the pulse signal and the first voltage for driving the voltage-sharing transistor.