The movement of a shift rail in an automatic gear transmission system, wherein each shift rail is connected to an associated actuator, is controlled with an electrical control signal. An effective rotation angle is typically created in the formed stress metal springs, defining a looped spring structure. The method for adaptive color correction, comprises steps of: providing a luminance value of a pixel: determining a weighting value corresponding to said luminance value of said pixel, wherein said weighting value substantially increases when said luminance value increases; and adjusting chrominance of said pixel according to said weighting value. A transmitter 176 transmits, to a control-side transfer unit 114, data requested to be transferred by the selected DMAC 170. The voltage adjusting circuit is configured to adjust a power supply voltage and an input voltage provided to the at least one inverter based on a current flowing in the replica inverter.