发明名称 |
White balance control system. |
摘要 |
<p>Quantity of light of blue projected on a screen is detected. A ratio of the detected quantity of the light to a whole quantity is calculated. The calculated ratio is compared with a reference ratio, and a deviation of the calculated ratio from the reference ratio is corrected so as to provide a white balance.</p> |
申请公布号 |
EP0440216(A2) |
申请公布日期 |
1991.08.07 |
申请号 |
EP19910101238 |
申请日期 |
1991.01.30 |
申请人 |
PIONEER ELECTRONIC CORPORATION |
发明人 |
AJIMA, KOHSUKE, C/O OHMORI KOUJOU |
分类号 |
H04N9/73 |
主分类号 |
H04N9/73 |
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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