Invention Grant
- Patent Title: Image pickup apparatus with white balance control
- Patent Title (中): 具有白平衡控制的摄像设备
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Application No.: US11683658Application Date: 2007-03-08
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Publication No.: US07995111B2Publication Date: 2011-08-09
- Inventor: Satoshi Nakayama , Hiromi Matsuda
- Applicant: Satoshi Nakayama , Hiromi Matsuda
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Cowan, Liebowitz & Latman, P.C.
- Priority: JP6-088599 19940426
- Main IPC: H04N9/73
- IPC: H04N9/73

Abstract:
An image pickup apparatus having an image pickup device and an extracting range changing device. The changing device changes an extracting range of an image signal regarded as an achromatic signal, output from the image pickup device, based on a result of comparison with a current brightness and a stored brightness. A white balance control device of the image pickup apparatus controls on a basis of the gain correction signal obtained from the image signal extracted from the range changed by the extracting range changing device.
Public/Granted literature
- US20070146499A1 IMAGE PICKUP APPARATUS Public/Granted day:2007-06-28
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