| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technique which can more effectively and efficiently perform AFC (Automatic Frequency Control) operation. <P>SOLUTION: A receiving device is provided with an oscillation means 36 of a voltage control type which outputs a frequency to be a reference of a receiving frequency, a frequency displacement detection means 26 which detects displacement of the receiving frequency to a received frequency, and a control voltage adjustment means 26 which adjusts control voltage to be impressed to the oscillation means for compensation of the frequency displacement. It is provided with a means 26 to calculate sensitivity for control voltage of the oscillation means based on the first and the second frequency displacement which are detected by the frequency displacement detection means, and difference of the control voltage regarding to these frequency displacement. <P>COPYRIGHT: (C)2007,JPO&INPIT |
