公开(公告)号：US20090262310A1

公开(公告)日：2009-10-22

申请号：US12400094

申请日：2009-03-09

申请人： Chang-Jung Wen ,  Jung-Chi Chen ,  Chih-Hui Chang

发明人： Chang-Jung Wen ,  Jung-Chi Chen ,  Chih-Hui Chang

IPC分类号： G03B21/14

CPC分类号： G03B21/147

摘要： A picture correction systems and a method are provided. The system includes a circular variable resistance unit and a control unit. The circular variable resistance unit includes at least two circular resistance coils and a control stick. One of the circular resistance coils receives a voltage. The control stick is disposed on the inner rims of the circular resistance coils to be electrically connected with the circular resistance coils. The control stick rolls along the inner rims of the circular resistance coils. The circular variable resistance unit generates a loop voltage according to a position of the control stick being located at the inner rims of the circular resistance coils. The control unit receives the loop voltage, and performs a picture correction for a projector according to the loop voltage.

摘要翻译： 提供了图像校正系统和方法。 该系统包括一个圆形可变电阻单元和一个控制单元。 圆形可变电阻单元包括至少两个圆形电阻线圈和控制棒。 一个圆形电阻线圈接收电压。 控制棒设置在圆形电阻线圈的内圈上以与圆形电阻线圈电连接。 控制棒沿着圆形电阻线圈的内缘滚动。 环形可变电阻单元根据位于圆形电阻线圈的内缘处的控制棒的位置产生回路电压。 控制单元接收环路电压，根据环路电压对投影机进行图像校正。