发明授权
- 专利标题： Moving driving device of camera
- 专利标题（中）： 移动相机的驱动装置
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申请号： US169449申请日： 1988-03-17
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公开(公告)号： US4849779A公开(公告)日： 1989-07-18
- 发明人: Kouji Yamamoto , Shinji Tominaga , Akira Yamanaka , Hiroshi Ueda , Nobuyuki Taniguchi , Ikushi Nakamura , Michihiro Iwata
- 申请人： Kouji Yamamoto , Shinji Tominaga , Akira Yamanaka , Hiroshi Ueda , Nobuyuki Taniguchi , Ikushi Nakamura , Michihiro Iwata
- 申请人地址： JPX Osaka
- 专利权人： Minolta Camera Kabushiki Kaisha
- 当前专利权人： Minolta Camera Kabushiki Kaisha
- 当前专利权人地址： JPX Osaka
- 优先权： JPX59-173261 19841114; JPX59-197143 19841228; JPX60-28848 19850227; JPX60-33950 19850308; JPX60-35962 19850312; JPX60-35963 19850312; JPX60-45490 19850327; JPX60-45491 19850327; JPX60-46676 19850328; JPX60-46677 19850328; JPX60-46678 19850328
- 主分类号： G03B7/091
- IPC分类号： G03B7/091 ; G03B7/16 ; G03B15/05 ; G03B17/42 ; G03B1/00
摘要：
The motor drive device according to the present invention drives a motor until a hold signal disappears and the motor is braked when the holding signal disappears. After a predetermined period from the time when the holding signal disappears, it is detected whether or not a completion position signal representing that the load has reached the normal complete position is output. If the completion position signal is not output, the motor is started again. The load is driven until the load reaches the position where the completion position signal is output, and then the motor is braked. Thus the load can be stopped at the correct position. Also, with the motor drive device according to the present invention, the motor may be braked after the load is driven by a predetermined amount. After a predetermined period has passed therefrom, it is detected whether or not a signal representing that the load is normally driven is output, and if the signal is not ouput, the motor is started again. The load is driven until the signal is output and then the motor is braked. Thus, the load can be correctly driven.
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