The blending coefficients of font glyphs undergo alpha correction to compensate for a lack of gamma correction in text rendering processes. A transit time from a change of a characteristic quantity of the exhaust gas in front of the adjusting device until the appearance behind the adjusting device detected by a sensor is compared to a specified transit time threshold value. In order to reduce the length between the semiconductor die and the leads, the lead tips on the one side are extended to positions close to the die pad, and the intervals between adjoining leads on the one side are smaller than those on the other side. The current control circuit provides a voltage control signal to the current source of the matchline to adjust the amount of current applied to the matchline in response to the voltage of the matchline. The base station then uses the information to properly code and modulate data prior to transmission such that the transmitted data can be received by the terminal at the desired level of performance.