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    • 61. 发明授权
    • Apparatus and method for calibrating video displays
    • 用于校准视频显示器的装置和方法
    • US5923366A
    • 1999-07-13
    • US869126
    • 1997-06-04
    • Toshiyuki KawashimaMie TomiukaTatsuya Watanabe
    • Toshiyuki KawashimaMie TomiukaTatsuya Watanabe
    • H04N9/28H04N17/04H04N17/00
    • H04N17/045H04N9/28
    • A system for performing beam convergence in video displays. The system is implemented through one or more convergence sensors, which are exposed to two distinct convergence test patterns. The first test pattern partially overlaps with one or more of the sensors to define a first covered area for each overlapped sensor, the portion of each sensor that is not overlapped defining a first uncovered area. The second test pattern overlaps the entirety of the first uncovered area for each sensor, the portion of each sensor that is not overlapped, therefore being the first covered area for each sensor. The output of the sensors when exposed to the first test pattern and the output of the sensors when exposed to the second test pattern are used to perform beam convergence calculations. The test patterns are selected in such a manner as to reduce the dynamic range requirement for the sensor output A/D converter(s).
    • 用于在视频显示器中执行光束会聚的系统。 该系统通过一个或多个会聚传感器实现,它们暴露于两个不同的收敛测试模式。 第一测试图案部分地与一个或多个传感器重叠以限定每个重叠传感器的第一覆盖区域,每个传感器的不重叠的部分限定第一未覆盖区域。 第二测试图案与每个传感器的第一未覆盖区域的整体重叠,每个传感器的不重叠的部分因此是每个传感器的第一覆盖区域。 当暴露于第一测试图案时,传感器的输出和当暴露于第二测试图案时传感器的输出被用于执行波束收敛计算。 选择测试图案以减少传感器输出A / D转换器的动态范围要求。