发明授权
- 专利标题: Drive device
- 专利标题(中): 驱动装置
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申请号: US33024申请日: 1987-03-31
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公开(公告)号: US4779032A公开(公告)日: 1988-10-18
- 发明人: Yuji Sakaegi , Nobuo Fukushima
- 申请人: Yuji Sakaegi , Nobuo Fukushima
- 申请人地址: JPX Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX61-074019 19860331
- 主分类号: G11B19/28
- IPC分类号: G11B19/28 ; G11B19/20 ; G11B21/02 ; G11B21/08 ; G11B31/00 ; H02P5/46 ; H04N5/77 ; H04N5/781 ; H04N9/793 ; G05B19/40
摘要:
A recording apparatus having a recording head for recording video signals on a magnetic disc as the disc rotates, comprises a servo motor, a circuit for generating a feedback signal representing the rotating state of the servo motor, a head moving member for changing over the recording position of the recording head relative to the magnetic disc, and a control circuit for performing a first sequence of controlling the rotating state of the servo motor in response to the feedback signal and a second sequence of controlling the moving state of the head moving member time-dividedly in response to generation of the feedback signal, so that the apparatus is constructed without the necessity of using a standard timing generating source solely used for controlling the movement of the head.
公开/授权文献
- US6040042A Composite plastics film or sheet 公开/授权日:2000-03-21
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