| 摘要 |
<p>PURPOSE:To improve the processing efficiency in camera shake detection by incorporating an A/D converter and plural registers storing A/D-converted results corresponding to inputs plurally inputted from a camera shake detecting device in a microcomputer. CONSTITUTION:Four inputs which are inputted from a camera shake detection circuit, exist in the A/D converter incorporated in a CPU 1, and the A/D- converted result of each input ch0-ch3 is stored in a corresponding A/D- converted result register. When the A/D conversion is finished being performed four times, A/D conversion finish interruption processing is started and the values of each A/D-converted result register are read in and the sum or the mean value of such values is calculated. Thus, the influence of high frequency noise produced in the camera shake detection circuit is restrained and the processing required for detecting the camera shake is simplified and the efficiency of the processing is improved.</p> |
