公开(公告)号：US06201569B1

公开(公告)日：2001-03-13

申请号：US08868572

申请日：1997-06-04

申请人： Toshiyuki Kawashima ,  Mie Tomiuka ,  Tatsuya Watanabe ,  Shigeyuki Sano

发明人： Toshiyuki Kawashima ,  Mie Tomiuka ,  Tatsuya Watanabe ,  Shigeyuki Sano

IPC分类号： H04N1700

CPC分类号： H04N9/28 ,  H04N17/04

摘要： A system and method for controlling a video display blanking signal so as to maintain a full display screen while minimizing interference with the displayed picture. To control the blanking signal one or more photosensors are placed at the periphery of the display screen. When a CRT overscans the screen at a sensor's location, the light from the CRT is incident on the sensor and the sensor generates a signal proportional to the amount of incident light. The sensor signal is used to adjust the CRT scan such that the CRT scan covers the screen but does not degrade the displayed picture.

摘要翻译： 一种用于控制视频显示消隐信号以便保持全屏显示同时最小化对所显示图像的干扰的系统和方法。 为了控制消隐信号，一个或多个光电传感器放置在显示屏的周围。 当CRT在传感器的位置超过屏幕时，来自CRT的光入射到传感器上，并且传感器产生与入射光量成比例的信号。 传感器信号用于调整CRT扫描，使得CRT扫描覆盖屏幕，但不会降低显示的图像。

公开(公告)号：US5923366A

公开(公告)日：1999-07-13

申请号：US869126

申请日：1997-06-04

申请人： Toshiyuki Kawashima ,  Mie Tomiuka ,  Tatsuya Watanabe

发明人： Toshiyuki Kawashima ,  Mie Tomiuka ,  Tatsuya Watanabe

IPC分类号： H04N9/28 ,  H04N17/04 ,  H04N17/00

CPC分类号： H04N17/045 ,  H04N9/28

摘要： 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).

摘要翻译： 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。