| 摘要 |
An image reading apparatus according to the present invention allows the period of generation of a load signal NRD, the load value in counter circuits 21 and 31 , and the comparative value in pulse generator circuits 22 and 32 to be changed corresponding to the multiplication rate of a PLL circuit 14 . Accordingly, the pulse width and the phase length of the signals generated in signal generator circuits 12 A and 12 B are enhanced in the controllable accuracy by increasing the multiplication rate of the PLL circuit 14 . Hence, even if the driving frequency is lowered, the pulse width and the phase length of the signals generated in signal generator circuits 12 A and 12 B can favorably be maintained in the controllable accuracy.
|
