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    • 51. 发明申请
    • HIGH-VOLTAGE AUTOMATIC CHANGEOVER SWITCH
    • 高压自动切换开关
    • US20080078922A1
    • 2008-04-03
    • US11777639
    • 2007-07-13
    • Yaohong LIUYumei CHENHuaping TANGJianjun GAOXinshui YANFeng GAOWei JIAXiaotian LIANGJinsheng LIUDe WEIWei YINDan ZHANGChong GUQinghui ZHANG
    • Yaohong LIUYumei CHENHuaping TANGJianjun GAOXinshui YANFeng GAOWei JIAXiaotian LIANGJinsheng LIUDe WEIWei YINDan ZHANGChong GUQinghui ZHANG
    • F16P3/14G01J1/42
    • H01H31/20
    • A high-voltage automatic changeover switch, includes a support and a control circuit board mounted on the support. In one embodiment, the support includes an insulating frame, four high-voltage contacts mounted on each of two opposite plates of the insulating frame, four high-voltage contacts on the same plate being pair-to-pair arranged, the high-voltage contacts at the corresponding positions on the two plates being pair-to-pair arranged. A motor is provided on the support, and when switching the high voltages, the control circuit board controls the rotation of the motor to automatically switch the connection relation between the high-voltage contact pairs. Embodiments of the switch have a voltage-resistance of above 50 KV, allowing a pulse current of not less than 500 A to pass through, and good contact performance and a high stability. In one aspect, the high-voltage automatic changeover switch performs automatic switching of power source high voltages in an accelerator system, so that the accelerator obtains electron beams with different energies, thus allowing an expanded scope of application of the accelerator, including updating and upgrading of non-destructive testing systems, custom container inspection systems, and high-energy CT systems.
    • 一种高压自动切换开关,包括支撑件和安装在支撑件上的控制电路板。 在一个实施例中,支撑件包括绝缘框架,安装在绝缘框架的两个相对板板中的每一个上的四个高压触点,同一板上的四个高压触点成对配对,高压触点 在两个板上的对应位置成对配对。 在支架上设有电机,当切换高电压时,控制电路板控制电动机的转动,自动切换高电压触点对之间的连接关系。 开关的实施例具有高于50KV的电压,允许不小于500A的脉冲电流通过,良好的接触性能和高稳定性。 一方面,高压自动切换开关在加速器系统中进行电源高电压的自动切换,使得加速器获得具有不同能量的电子束,从而允许加速器的应用范围扩大,包括更新和升级 非破坏性测试系统,定制容器检查系统和高能CT系统。
    • 56. 发明授权
    • Method and apparatus for ringing and halo control
    • 用于振铃和晕环控制的方法和装置
    • US08502894B2
    • 2013-08-06
    • US12649746
    • 2009-12-30
    • Patricia Wei Yin Chiang
    • Patricia Wei Yin Chiang
    • H04N5/208G06K9/40
    • H04N5/208
    • A system is disclosed for reducing artifacts in images and video, such as ringing or halo artifacts. The system may include an edge detector and a gain controller. The edge detector may create an edge image used by the gain controller to create a gain image, and the gain image may be used to reduce artifacts in an image. The gain controller may, for a current pixel in the edge image, compute the maximum value of the edge image over a window containing the current pixel. The gain controller may also perform averaging to determine a maximum edge value and a current edge value, and may also use a ratio of the current edge value and the maximum edge value to determine a gain to be applied to a pixel of an image.
    • 公开了一种用于减少图像和视频中的伪影的系统,例如振铃或光晕伪影。 系统可以包括边缘检测器和增益控制器。 边缘检测器可以创建由增益控制器使用的边缘图像以产生增益图像,并且增益图像可以用于减少图像中的伪像。 对于边缘图像中的当前像素,增益控制器可以在包含当前像素的窗口上计算边缘图像的最大值。 增益控制器还可以执行平均以确定最大边缘值和当前边缘值,并且还可以使用当前边缘值和最大边缘值的比率来确定要施加到图像的像素的增益。