发明授权
US5933187A Video camera apparatus with automatic focus operation dependent on
electronic zoom condition
失效
具有自动对焦操作的摄像机设备取决于电子变焦条件
- 专利标题： Video camera apparatus with automatic focus operation dependent on electronic zoom condition
- 专利标题（中）： 具有自动对焦操作的摄像机设备取决于电子变焦条件
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申请号： US632919申请日： 1996-04-16
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公开(公告)号： US5933187A公开(公告)日： 1999-08-03
- 发明人: Masahide Hirasawa , Tatsuya Yamazaki , Hiroto Ohkawara
- 申请人： Masahide Hirasawa , Tatsuya Yamazaki , Hiroto Ohkawara
- 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： JPX5-126182 19930527; JPX5-127077 19930528; JPX5-127078 19930528
- 主分类号： H04N5/232
- IPC分类号： H04N5/232 ; H04N5/262
摘要：
A video camera includes an image pickup device for photoelectrically converting into a video signal an optical image focused on a pickup surface of the device, a focus adjusting device for focusing the optical image on the image pickup surface, electronic magnification varying circuitry for electronically varying an image magnification by signal processing, and a control circuit for controlling an operation of the focus adjusting device in manners which differ depending on whether or not the image magnification is varied by the electronic magnification varying circuitry.
公开/授权文献
- US5090042A Videofluoroscopy system for in vivo motion analysis 公开/授权日：1992-02-18
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