公开(公告)号：US5933129A

公开(公告)日：1999-08-03

申请号：US864077

申请日：1997-05-28

申请人： Haruhisa Egami ,  Tohru Furuse

发明人： Haruhisa Egami ,  Tohru Furuse

IPC分类号： G01R13/24 ,  G01R13/28 ,  G09G1/16 ,  G09G5/36

CPC分类号： G09G1/162 ,  G01R13/245 ,  G01R13/28

摘要： A signal waveform display system for displaying waveforms of one or two input signals on a display screen is provided which comprises first-third input switching circuits, first and second trigger generators, first and second horizontal sweep generators, and a composite horizontal sweet generator. The trigger generators respectively generates first and second trigger pulses synchronously with the input signals provided thereto through the first and second input switching circuits. The sweep generators are triggered by the trigger pulses and generate first and second sweep signals having variable time periods, respectively. The composite sweep generator generates a composite sweep signal including lower portions of the first sweep signal which are smaller than a reference voltage, and upper portions of the second sweep signal which are higher than the reference voltage. The input signals are selectively provided to a vertical axis driving circuit, and the composite sweep signal is provided to a horizontal axis driving circuit, thereby the waveforms on different time scales can be laterally displayed on the screen.

摘要翻译： 提供一种用于在显示屏幕上显示一个或两个输入信号的波形的信号波形显示系统，其包括第一和第二输入切换电路，第一和第二触发发生器，第一和第二水平扫描发生器以及复合水平甜味发生器。 触发发生器分别通过第一和第二输入开关电路产生与其提供的输入信号同步的第一和第二触发脉冲。 扫描发生器由触发脉冲触发并分别产生具有可变时间段的第一和第二扫描信号。 复合扫描发生器产生包括小于参考电压的第一扫描信号的下部的复合扫描信号和高于参考电压的第二扫描信号的上部。 选择性地将输入信号提供给垂直轴驱动电路，并将复合扫描信号提供给水平轴驱动电路，从而可以在屏幕上横向显示不同时间尺度的波形。

公开(公告)号：US5526042A

公开(公告)日：1996-06-11

申请号：US305701

申请日：1994-09-14

申请人： Kentaro Ozawa ,  Haruhisa Egami

发明人： Kentaro Ozawa ,  Haruhisa Egami

IPC分类号： G01R13/28 ,  G01R13/32 ,  H04N5/265 ,  H04N17/00 ,  H04N17/02

CPC分类号： H04N17/00

摘要： An apparatus for displaying line and frame waveforms having different time-scales of a video signal on a display screen is described which comprises complex sweep signal generating means including a line sweep signal generating circuit 2, a frame sweep signal generating circuit 3 and a switching circuit 4, and horizontal axis drive circuit including a horizontal location arrangement circuit 5 and a horizontal axis drive circuit 6. The line and frame sweep signal generating circuits 2 and 3 generate line and frame sweep signals S.sub.2 and S.sub.3 synchronously with line and frame synchronization signals of the video signal, respectively, and the switching circuit 4 alternatively transfers the line and frame sweep signals S.sub.2 and S.sub.3, synchronously with the frame synchronization signal to generate a complex sweep signal S.sub.4.

摘要翻译： 描述了一种用于在显示屏幕上显示具有不同视频信号时间尺度的线和帧波形的装置，其包括复扫描信号产生装置，包括行扫描信号发生电路2，帧扫描信号发生电路3和切换电路 包括水平位置布置电路5和横轴驱动电路6的水平轴驱动电路。线和帧扫描信号发生电路2和3与线和帧扫描信号S2和S3同步地产生线和帧同步信号， 视频信号和开关电路4与帧同步信号同步地交替地传输线和帧扫描信号S2和S3，以产生复扫描信号S4。