发明名称 Video zooming method and video camera adopting the same
摘要 A video zooming method and video camera adopting the same prevents a near object from becoming out of focus when zooming. The video camera selects a tele-state (high-power magnification) according to input from a user to perform a zooming operation and then checks a focusing state. When the lens is in focus, a zooming operation is performed while zoom lens position information and corresponding focus lens position information are stored; when the lens is out of focus, optical zooming and focusing operations are performed using the just-previously stored focus lens position information and the corresponding zoom lens position information. Then, a digital zooming operation is performed with respect to the video signal obtained from the optical zooming and focusing operations. Thus, although an automatic focusing is performed when zooming the zoom lens, a near object is prevented from becoming out of focus when the magnification is high-power or greater.
申请公布号 US6654053(B1) 申请公布日期 2003.11.25
申请号 US19970901409 申请日期 1997.07.28
申请人 SAMSUNG ELECTRONICS CO., LTD. 发明人 HWANG DEOG-WON
分类号 G02B7/08;G02B7/10;G02B7/36;G03B5/00;H04N5/228;H04N5/232;H04N5/262;(IPC1-7):H04N5/262 主分类号 G02B7/08
代理机构 代理人
主权项
地址