发明授权
- 专利标题: Circuit for performing white balance correction using two color temperature sensors
- 专利标题(中): 使用两个色温传感器执行白平衡校正的电路
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申请号: US925943申请日: 1986-11-03
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公开(公告)号: US4739393A公开(公告)日: 1988-04-19
- 发明人: Mitsuo Seki , Keiichi Tanii
- 申请人: Mitsuo Seki , Keiichi Tanii
- 申请人地址: JPX Osaka
- 专利权人: Sanyo Electric Co., Ltd.
- 当前专利权人: Sanyo Electric Co., Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX60-247472 19851105; JPX60-247473 19851105; JPX60-284969 19851218
- 主分类号: H04N9/73
- IPC分类号: H04N9/73
摘要:
A circuit for performing white balance correction using two color temperature sensors includes an image sensor for converting an image of an object to a color image signal, a luminance signal/color signal separator for separating an output of the image sensor into a luminance signal and a color signal, and at least one level correction means for correcting a level of the color signal output from the luminance signal/color signal separator, based on a first white balance correction signal or a second white balance correction signal supplied through a switching or disabling means. A first white balance correction signal generator is provided independently of the image sensor and generates the first white balance correction signal correlating to a color temperature of the object. A second white balance correction signal generator generates the second white balance correction signal correlating to the color temperature of the object, based on the luminance signal output from the luminance signal/color signal separator and the color signal having the level corrected by the level correction means.
公开/授权文献
- US6114380A Difluoro statone analogs 公开/授权日:2000-09-05
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