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1. 发明授权

US5231332A AC electric field emission suppression in CRT image displays 失效
标题翻译： CRT图像显示中的交流电场发射抑制
公开(公告)号：US5231332A
公开(公告)日：1993-07-27
申请号：US868922
申请日：1992-04-15
申请人： Gregory J. Beaumont , Wayne D. Grocki
发明人： Gregory J. Beaumont , Wayne D. Grocki
IPC分类号： H01J29/00 , H04N3/185
CPC分类号： H04N3/185 , H01J29/003 , H01J2229/0015
摘要： An AC electric field emission suppressor for use in a CRT imaging system cancels the ripple voltage on the ultor voltage that generates the undesired emission. Ripple-cancelling pulses are derived from the horizontal deflection circuit and are capacitively coupled through the CRT wall to cancel the ripple voltage and suppress the undesired emission.
摘要翻译：用于CRT成像系统的AC电场发射抑制器抵消产生不期望的发射的阳极电压的纹波电压。纹波消除脉冲从水平偏转电路得到，并通过CRT壁电容耦合，以消除纹波电压并抑制不需要的发射。

2. 发明授权

US5382875A Stray magnetic field suppresser for CRT image displays 失效
标题翻译：用于CRT图像显示的杂散磁场抑制器
公开(公告)号：US5382875A
公开(公告)日：1995-01-17
申请号：US927705
申请日：1992-08-10
申请人： Wayne D. Grocki , Christopher S. DeWaal
发明人： Wayne D. Grocki , Christopher S. DeWaal
IPC分类号： H01J29/00 , H01J29/06
CPC分类号： H01J29/003 , H01J2229/0015
摘要： A stray magnetic field suppression system for use in a CRT image display suppresses a stray magnetic field that emanates from the horizontal deflection coil of a beam-deflecting yoke which is energized by sawtooth waveform pulses from a horizontal oscillator. The system comprises two series-connected magnetic coil assemblies in conjunction with a capacitor and activated by the sawtooth waveform pulses. The capacitor serves to integrate the pulses, enabling the suppression system to form an effective field for suppressing a stray magnetic field when the magnetic coil assemblies are interposed in the path of the stray magnetic field on opposite sides of the yoke.
摘要翻译：用于CRT图像显示器的杂散磁场抑制系统抑制由来自水平振荡器的锯齿波形脉冲激励的光束偏转磁轭的水平偏转线圈发出的杂散磁场。该系统包括两个串联连接的电磁线圈组件，与电容器结合并由锯齿波形脉冲激活。电容器用于集成脉冲，使得抑制系统能够形成用于当磁性线圈组件插入在磁轭的相对侧上的杂散磁场的路径中时抑制杂散磁场的有效场。

3. 发明授权

US5311099A Pulse driver for CRT stray magnetic field cancelling circuit 失效
标题翻译： CRT杂散磁场消除电路的脉冲驱动器
公开(公告)号：US5311099A
公开(公告)日：1994-05-10
申请号：US998092
申请日：1992-12-28
申请人： Wayne D. Grocki
发明人： Wayne D. Grocki
IPC分类号： H01J29/00 , H04N3/185 , H01J29/06
CPC分类号： H04N3/185 , H01J29/003 , H01J2229/0015
摘要： A CRT image display emanates an undesired stray magnetic field that originates in the horizontal deflection coil of a beam-deflecting yoke energized by pulses from a horizontal oscillator circuit. A novel drop-in auxiliary pulse generator substantially electrically independent of the CRT image display, and synchronized with the output of the horizontal oscillator circuit, provides for energizing systems or devices that can suppress the stray magnetic field. The auxiliary pulse generator relieves the CRT horizontal oscillator of the burden of energizing a system for suppressing the stray magnetic field.
摘要翻译： CRT图像显示器产生不期望的杂散磁场，其源于由来自水平振荡器电路的脉冲激励的光束偏转轭的水平偏转线圈。基本上电独立于CRT图像显示器并与水平振荡器电路的输出同步的新颖的辅助脉冲发生器提供能够抑制杂散磁场的通电系统或装置。辅助脉冲发生器消除了CRT水平振荡器对用于抑制杂散磁场的系统通电的负担。

4. 发明授权

US5208510A CRT magnetic field cancelling device 失效
标题翻译： CRT磁场消除装置
公开(公告)号：US5208510A
公开(公告)日：1993-05-04
申请号：US814125
申请日：1991-12-30
申请人： Wayne D. Grocki
发明人： Wayne D. Grocki
IPC分类号： H01J29/00
CPC分类号： H01J29/003 , H01J2229/0015
摘要： A stray magnetic field cancelling device for a cathode ray tube comprises an elongated member of adjustable length composed of at least two magnetizable metal plates in slidable relationship enveloped by an electromagnetic coil. The device is physically isolated from the yoke a distance effective to exert minimum effect on the yoke deflection fields. Also, the device is oriented transversely to the centerline of the cathode ray tube so as to generate a cancelling magnetic field in opposed relationship with, and transverse to, the stray magnetic field. A simple mechanical adjustment provides for adapting the device to CRTs of varying sizes.
摘要翻译：用于阴极射线管的杂散磁场消除装置包括可调长度的细长构件，其由至少两个由电磁线圈包围的可滑动关系的可磁化金属板组成。该装置与磁轭物理上隔离有效地对磁轭偏转场施加最小影响的距离。而且，器件横向于阴极射线管的中心线定向，从而产生与杂散磁场相对关系并横向于杂散磁场的抵消磁场。简单的机械调整提供了使设备适应不同尺寸的CRT。

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