| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technology for predicting the length of the period where the level of a rectangular signal is the same. <P>SOLUTION: A period width prediction circuit 598 for predicting the period width where the level of the rectangular signal is the same comprises a variation position detection section 706 for detecting, as a variation position, the time position where the level of the rectangle signal varies, a period width measurement section 594 for measuring, as the period width, the length from the variation position to the next variation position, past period width storage sections 702 and 704 for storing, as the past period width, a plurality of period widths measured by the period width measurement section, and a predicted period width calculation section 710 for calculating the predicted period width RA as a predicted value of the next period width based on the variation in past period width. <P>COPYRIGHT: (C)2010,JPO&INPIT |
