发明名称 Camera focus control according to extraction range size and/or zoom rate
摘要 An image pickup apparatus is provided with a focus detecting device for detecting a state of focus from a picked-up image signal outputted from an image sensor, and an electronic zoom device for electrically magnifying the picked-up image signal. The image pickup apparatus is arranged to control an operation characteristic of the focus detecting device on the basis of the operating state of the electronic zoom device.
申请公布号 US6166770(A) 申请公布日期 2000.12.26
申请号 US19960685178 申请日期 1996.07.18
申请人 CANON KABUSHIKI KAISHA 发明人 YASUDA, HITOSHI
分类号 H04N5/232;(IPC1-7):H04N5/232 主分类号 H04N5/232
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