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1. 发明授权

US3866210A X-y alphanumeric character generator for oscilloscopes 失效
标题翻译： X-Y用于振荡器的ALPHANUMERIC CHARACTER发生器
公开(公告)号：US3866210A
公开(公告)日：1975-02-11
申请号：US39747773
申请日：1973-09-14
申请人： NASA
发明人： LOKERSON DONALD C , BOSTON RONALD E
IPC分类号： G01R13/02 , G01R13/22 , G09G1/00 , G06F3/14
CPC分类号： G09G1/002 , G01R13/02 , G01R13/22
摘要： A method and apparatus is disclosed by which any general purpose external trigger laboratory oscilloscope can be utilized to display alphanumeric characters. Each character to be displayed is composed of a plurality of segments appearing at various segment positions in various segment rows to define a conventional matrix, various ones of the segments being displayed during each horizontal sweep of the oscilloscope trace. In between character segments to be displayed, or when no display is desired, the trace is effectively blanked by a vertical clamping voltage so as to position the oscilloscope trace in an off-screen position. The ''''clamping'''' technique of the invention, i.e., biasing the oscilloscope trace to an off-screen position when no character segment is to be displayed, eliminates the necessity of providing Z-axis modulation to effect blanking.
摘要翻译：公开了一种方法和装置，通过该方法和装置可以使用任何通用外部触发实验室示波器来显示字母数字字符。要显示的每个字符由出现在各个段行中的各个段位置处的多个段组成，以定义常规矩阵，在示波器轨迹的每个水平扫描期间显示各个段。在要显示的字符段之间，或者当不需要显示时，迹线被垂直钳位电压有效地消隐，以便将示波器轨迹定位在离屏位置。本发明的“夹紧”技术，即当不显示字符段时，将示波器轨迹偏置到离屏位置，消除了提供Z轴调制以实现消隐的必要性。

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