| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce a bad influence on other electronic apparatuses due to conductive noise generated from a radio communication apparatus, without incurring cost increase or a large-sizing of the radio communication apparatus. <P>SOLUTION: The apparatus is equipped with a high-precision oscillator which is used for a communication operation in a radio communication portion and generates an operating clock signal to become a prescribed frequency when being divided by a prescribed division ratio, a low accuracy oscillator which is lower in accuracy than the high-precision oscillator and generates a first clock signal close to the prescribed frequency, a frequency divider, which divides the operating clock signal generated by the high accuracy oscillator at the prescribed division ratio and generates a second clock signal, and a control portion which controls the clock signal supplied to an electric power converter so as to switch it to the second clock signal, when an informed signal transmitted from a base station in the radio communication portion is received and to the first clock signal, when the informed signal stops being received. <P>COPYRIGHT: (C)2007,JPO&INPIT |
