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    • 1. 发明授权
    • Method for measuring convergence by using a mixed color pattern
    • 通过使用混合色彩图案来测量收敛的方法
    • US06552755B1
    • 2003-04-22
    • US09625408
    • 2000-07-25
    • Wan-Soo KimChang-Gun Lee
    • Wan-Soo KimChang-Gun Lee
    • H04N928
    • H04N17/02H04N9/28
    • A method for measuring a convergence of color CRT uses a combination pattern among Red(R), Green(G) and Blue(B) colors on a white pattern when measuring convergence by using a color camera so that convergence is measured with a high degree of precision. The method sequentially generates two test patterns after mixing two colors chosen from among red(R), green(G), and blue(B) colors, e.g., mixtures of red(R)/blue(B) and green(G)/blue(B). Images are independently obtained of the two test patterns formed on the color CRT screen, and a signal conversion is performed based on each independently obtained pattern image to produce image information. The image information is stored and a convergence of the stored image information for each test pattern is calculated.
    • 用于测量彩色CRT的会聚的方法在通过使用彩色照相机测量会聚时在白色图案上使用Red(R),Green(G)和Blue(B)颜色之中的组合图案,从而以高度 的精度。 在从红(R),绿(G)和蓝(B)颜色中选择的两种颜色混合后,顺序产生两种测试图案,例如红(R)/蓝(B)和绿(G)/ 蓝色(B)。 独立地获得形成在彩色CRT屏幕上的两个测试图案的图像,并且基于每个独立获得的图案图像执行信号转换以产生图像信息。 存储图像信息,并计算每个测试图案所存储的图像信息的收敛。
    • 2. 发明授权
    • Method and apparatus for measuring convergence with respect to a color CRT using a color CCD camera
    • 使用彩色CCD照相机测量相对于彩色CRT的会聚的方法和装置
    • US06483313B1
    • 2002-11-19
    • US09629856
    • 2000-08-01
    • Wan-Soo KimChang-Gun Lee
    • Wan-Soo KimChang-Gun Lee
    • G01R3124
    • H04N17/02H04N9/28H04N17/04
    • An apparatus and method are provided for measuring convergence of the Red-Green-Blue (R.G.B.) signals of a color cathode ray tube (CRT) using a color charge coupled device (CCD) camera. A uniform R.G.B. brightness value is picked up by the color CCD camera at all positions of the CRT screen when the color CCD camera images the screen, thus enabling convergence to be more accurately measured and adjusted. Test patterns having a constant R.G.B. brightness value are displayed on the screen of the CRT by a pattern generator. The displayed test patterns are picked up by the color CCD camera, and when the R.G.B. brightness values differ from a corresponding reference brightness value, a controller adjusts the intensity of each of the R.G.B. signals of each test pattern by suitably controlling the pattern generator. A uniform R.G.B. brightness value is thus provided for all test patterns displayed on the CRT screen. Only after the R.G.B. brightness value has been made uniform is convergence measured, thereby increasing the reliability of the convergence measurement data.
    • 提供一种用于使用彩色电荷耦合器件(CCD)照相机测量彩色阴极射线管(CRT)的红 - 绿 - 蓝(R.G.B.)信号的会聚的装置和方法。 制服 当彩色CCD摄像机对屏幕进行成像时,通过彩色CCD摄像机在CRT屏幕的所有位置拾取亮度值,从而使得能够更准确地测量和调整收敛。 测试模式具有常数R.G.B. 亮度值通过图案发生器显示在CRT的屏幕上。 显示的测试图案由彩色CCD相机拾取,当R.G.B. 亮度值与相应的参考亮度值不同,控制器调节每个R.G.B.的强度。 通过适当地控制图案发生器,每个测试图案的信号。 制服 因此,为CRT屏幕上显示的所有测试图案提供亮度值。 只有在R.G.B.之后 亮度值已经均匀化是收敛测量的,从而提高了收敛测量数据的可靠性。