发明名称 |
Video camera apparatus |
摘要 |
A video camera includes a gate circuit for extracting a sharpness signal relative to an area which is set in a portion of a picture, a focus adjusting device for performing focus adjustment on the basis of the sharpness signal relative to the area, and an area selecting circuit for controlling the gate circuit to vary the area in size and determining a size of the area during a driving of a variator lens in accordance with a size of the area and a focal length used before the driving of the variator lens.
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申请公布号 |
US2005083430(A1) |
申请公布日期 |
2005.04.21 |
申请号 |
US20040968797 |
申请日期 |
2004.10.19 |
申请人 |
HIRASAWA MASAHIDE;YAMAZAKI TATSUYA;OHKAWARA HIROTO |
发明人 |
HIRASAWA MASAHIDE;YAMAZAKI TATSUYA;OHKAWARA HIROTO |
分类号 |
H04N5/232;(IPC1-7):H04N5/232 |
主分类号 |
H04N5/232 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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