公开(公告)号：US20080297511A1

公开(公告)日：2008-12-04

申请号：US12128372

申请日：2008-05-28

申请人： Yu-Pin CHOU ,  Szu-Ping CHEN ,  Yu Jen LIN

发明人： Yu-Pin CHOU ,  Szu-Ping CHEN ,  Yu Jen LIN

IPC分类号： G06T17/00 ,  G09G5/02

CPC分类号： G06T1/60 ,  G09G3/28 ,  G09G3/36 ,  G09G5/005 ,  G09G2310/08 ,  G09G2340/0414 ,  G09G2340/0421

摘要： The invention discloses a mode detection circuit and a method thereof, for detecting an image signal, the image signal includes a horizontal resolution and the vertical resolution. The mode detection circuit includes a measuring unit, a calculation unit, and a decision unit. The measuring unit receives a clock signal and is used to count the clock signal to output a first counting value and the second counting value. The calculation unit is used to perform the calculation with the first counting value and the second counting value and thereby outputting a calculating value, wherein the calculating value outputted by the calculation unit is corresponding to the ratio of the first counting value to the second counting value. The decision unit is used to determine the horizontal resolution or the vertical resolution according to the calculating value.

摘要翻译： 本发明公开了一种模式检测电路及其方法，用于检测图像信号，图像信号包括水平分辨率和垂直分辨率。 模式检测电路包括测量单元，计算单元和判定单元。 测量单元接收时钟信号，并用于对时钟信号进行计数以输出第一计数值和第二计数值。 计算单元用于执行具有第一计数值和第二计数值的计算，从而输出计算值，其中由计算单元输出的计算值对应于第一计数值与第二计数值的比率 。 决策单元用于根据计算值确定水平分辨率或垂直分辨率。