公开(公告)号：US5378946A

公开(公告)日：1995-01-03

申请号：US55838

申请日：1993-04-30

申请人： Gerd Reime

发明人： Gerd Reime

IPC分类号： H03K5/1532 ,  H03K5/1536 ,  H04N5/14 ,  H03K5/153 ,  H03K5/22

CPC分类号： H04N5/142

摘要： Two edge detectors (12, 13) at the input (10.1) and the output (10.2) of a delay line (10) of the edge detector arrangement (11) generate detection signals of identical shape at the detected signal edges of a signal traveling over the delay line. The delay time of the delay line is selected so that the two detection signals partly overlap in time. A subtraction arrangement (16) generates, from the two detection signals, a difference signal that contains, in the overlap region, a zero crossing that can be detected by a zero crossing detector (17). At the time of this zero crossing, the zero crossing detector generates the switching edge of an edge detection signal that controls, for example, a signal switcher (9).

摘要翻译： 在边缘检测器装置（11）的延迟线（10）的输入端（10.1）和输出端（10.2）处的两个边缘检测器（12,13）产生在信号行进的检测信号边缘处具有相同形状的检测信号 在延迟线上。 选择延迟线的延迟时间，使得两个检测信号在时间上部分重叠。 减法装置（16）从两个检测信号产生在重叠区域中包含可由过零检测器（17）检测的过零点的差分信号。 在该零交叉时，过零检测器产生控制例如信号切换器（9）的边缘检测信号的切换边缘。