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    • 6. 发明授权
    • 자동화이트밸런스 및 자동블랙밸런스 공용회로 및 방법
    • 自动白平衡和自动黑平衡通用电路和方法
    • KR1019930006900B1
    • 1993-07-24
    • KR1019890020745
    • 1989-12-31
    • 삼성전자주식회사
    • 전병관엄영구
    • H04N9/73
    • H04N9/735
    • The circuit includes a colour signal processor (20) for variably processing selected colour signals of the video signals. A first comparator responds to the first selected colour signals for providing an automatic white balance signal. A second comparator responsive to the second selected colour signals provides an automatic black balance signal. A controller responsive to the automative white and black balance signals, balances the whiteness and the blackness level of the video signals, upon reception of a user's command signal representative of either the balancing of the whiteness or the blackness level and a vertical synchronising signal. The process contemplates a key check sequence, an automatic white balance control sequence, an automatic black balance control sequence, and an information output sequence.
    • 电路包括用于可变地处理视频信号的所选颜色信号的颜色信号处理器(20)。 第一比较器响应于第一选择的颜色信号以提供自动白平衡信号。 响应于第二选择的颜色信号的第二比较器提供自动黑平衡信号。 响应于自动白平衡信号和黑平衡信号的控制器,在接收到表示白度或黑度级别的平衡和垂直同步信号的用户的命令信号时,平衡视频信号的白度和黑度级别。 该过程考虑了键检查序列,自动白平衡控制序列,自动黑平衡控制序列和信息输出序列。