Patent ID: 6040677
Filing Date: 2000-03-21
Classification: G02B,H02P

Abstract:
A stepping motor driving apparatus for a camera, comprising:a digital still camera having an image pickup device, a memory capable of storing image data produced by said image pickup device, and a display capable of displaying said image data;a 1-2 phase excitation type stepping motor;said camera having a mode of normal drive control and high precision drive control of said camera;a drive controller which drives said stepping motor by 1-2 phase excitation;wherein, when said camera is in said mode of normal drive control responsive to image data being displayed on said display but not being recorded in said memory, said drive controller always stops said stepping motor at a 1-phase excitation position by de-energizing said stepping motor at said 1-phase excitation position, andwherein, when said camera is in said mode of high precision control responsive to image data being recorded in said memory, said drive controller stops said stepping motor at one of said 1-phase excitation position and a 2-phase excitation position without stopping excitation of said stepping motor.