发明公开
EP0397239A1 Circuit arrangement for supplying a periodic, substantially parabolic signal
失效 - 权利终止
基本信息:
- 专利标题： Circuit arrangement for supplying a periodic, substantially parabolic signal
- 专利标题（中）：Schaltungsanordnung zum Liefern eines periodischen，im wesentlichenparabelförmigenSignals。
- 申请号：EP90201095.8 申请日：1990-05-02
- 公开(公告)号：EP0397239A1 公开(公告)日：1990-11-14
- 发明人： Ten Pierick, Hendrik , Chan, Kar Biu , Koelewijn, Steven Johannes
- 申请人： Philips Electronics N.V.
- 申请人地址： Groenewoudseweg 1 5621 BA Eindhoven NL
- 专利权人： Philips Electronics N.V.
- 当前专利权人： Philips Electronics N.V.
- 当前专利权人地址： Groenewoudseweg 1 5621 BA Eindhoven NL
- 代理机构： Steenbeek, Leonardus Johannes
- 优先权： NL8901147 19890508
- 主分类号： H03K4/04
- IPC分类号： H03K4/04 ; H03K4/02
摘要：
Circuit arrangement comprising a parabolic generator (2) for supplying a periodic, substantially parabolic signal to an output terminal during the trace time and an arcuate signal generator (3) for supplying an arcuate signal, which has the shape of, for example, half a sine wave, during the retrace time. At the start of the retrace time the arcuate signal and its derivative are given values which are substantially equal to the corresponding values of the parabolic signal at the end of the trace time. The arcuate signal generator is adapted to generate the arcuate signal in a time-discrete manner under the control of switching pulses supplied by a pulse circuit (4). The pulse circuit (4) is adapted to supply such a constant number of switching pulses for generating the arcuate signal at a variable retrace time that the arcuate signal and its derivative assume values which are substantially equal to the corresponding values of the parabolic signal at the start of the trace time.
摘要（中）：
电路装置包括抛物线发生器（2），用于在跟踪时间期间向输出端提供周期性的基本上抛物线的信号;以及弧形信号发生器（3），用于提供弓形信号，该弧形信号发生器具有例如半 正弦波，在回溯时间。 在回扫时间的开始，弓形信号及其导数被给出的值基本上等于跟踪时间结束时抛物线信号的相应值。 弧形信号发生器适于在由脉冲电路（4）提供的切换脉冲的控制下以时间离散的方式产生弓形信号。 脉冲电路（4）适于提供这样的常数数量的切换脉冲，用于在可变回扫时间产生弓形信号，弓形信号及其导数假定值基本上等于在 开始追踪时间。