公开(公告)号：US06630791B2

公开(公告)日：2003-10-07

申请号：US10120326

申请日：2002-04-10

申请人： Yukio Uchida ,  Tomoaki Iwamoto ,  Katsuyo Iwasaki

发明人： Yukio Uchida ,  Tomoaki Iwamoto ,  Katsuyo Iwasaki

IPC分类号： H01J152

CPC分类号： H01J29/003 ,  H01J2229/0015

摘要： Two closed-loop coils are respectively set at the top or the bottom of a cathode ray tube. These two closed-loop coils serves in a pair as a cancel coil. Each closed-loop coil is positioned so as to make an interlinkage with the magnetic field leakage that escapes from the deflection yoke, a part of the closed-loop coil running almost in parallel to the top or bottom edge of an effective display region of a front panel.

公开(公告)号：US06215258B1

公开(公告)日：2001-04-10

申请号：US09407923

申请日：1999-09-29

申请人： Tomohiro Sakata ,  Mitsuya Masuda ,  Yukio Uchida ,  Tomoaki Iwamoto

发明人： Tomohiro Sakata ,  Mitsuya Masuda ,  Yukio Uchida ,  Tomoaki Iwamoto

IPC分类号： G09G104

CPC分类号： H04N3/26 ,  H01J2229/4841

摘要： A dynamic focus circuit enables ideal focusing characteristics to be obtained across the entire screen of a wide-angled cathode ray tube, by generating a dynamic focus voltage having a flat-bottomed waveform through the addition of a simple circuit to a conventional analog circuit. If an S-shaping voltage method is used, the voltage of a signal induced in a secondary coil of a step-up transformer for raising the voltage of a parabolic waveform signal having a horizontal deflection period switches the gain for converting the parabolic waveform signal to a dynamic focus voltage, according to whether the induced voltage exceeds a specified reference value. If the induced voltage does not exceed the specified reference value, the parabolic waveform signal is converted to the dynamic focus voltage at a gain of less than one. If a DAF (Dynamic Focus) signal generating IC is used, a gain control voltage for controlling a gain of the parabolic waveform signal generated by the DAF signal generating IC is altered so that the gain is smaller than one at the approximate midpoint of a horizontal deflection period, and increases as it moves out to the edges of the screen.

摘要翻译： 动态聚焦电路通过通过向常规模拟电路添加简单电路而产生具有平底波形的动态聚焦电压，从而可以在广角阴极射线管的整个屏幕上获得理想的聚焦特性。 如果使用S整形电压方法，则升压变压器的次级线圈中感应的信号的电压用于提高具有水平偏转周期的抛物面波形信号的电压，将用于将抛物线波形信号转换的增益切换为 动态聚焦电压，根据感应电压是否超过规定的参考值。 如果感应电压不超过规定的参考值，则抛物线波形信号以小于1的增益转换为动态聚焦电压。 如果使用DAF（动态聚焦）信号发生IC，则改变用于控制由DAF信号产生IC产生的抛物线波形信号的增益的增益控制电压，使得增益小于在水平方向的大致中点处的增益 偏转周期，并且随着其移动到屏幕的边缘而增加。

公开(公告)号：US06404133B1

公开(公告)日：2002-06-11

申请号：US09536038

申请日：2000-03-27

申请人： Yukio Uchida ,  Tomoaki Iwamoto ,  Katsuyo Iwasaki

发明人： Yukio Uchida ,  Tomoaki Iwamoto ,  Katsuyo Iwasaki

IPC分类号： H01J152

CPC分类号： H01J29/003 ,  H01J2229/0015

摘要： Two closed-loop coils are respectively set at the top or the bottom of a cathode ray tube. These two closed-loop coils serves in a pair as a cancel coil. Each closed-loop coil is positioned so as to make an interlinkage with the magnetic field leakage that escapes from the deflection yoke, a part of the closed-loop coil running almost in parallel to the top or bottom edge of an effective display region of a front panel.

摘要翻译： 两个闭环线圈分别设置在阴极射线管的顶部或底部。 这两个闭环线圈成对地用作消除线圈。 每个闭环线圈被定位成与从偏转线圈逸出的磁场泄漏形成互连，闭环线圈的一部分几乎平行于一个有效显示区域的顶部或底部边缘 前面板。

公开(公告)号：US06294884B1

公开(公告)日：2001-09-25

申请号：US09290129

申请日：1999-04-12

申请人： Yukio Uchida ,  Tomoaki Iwamoto

发明人： Yukio Uchida ,  Tomoaki Iwamoto

IPC分类号： G09G104

CPC分类号： G09G1/04 ,  G09G2320/02 ,  H04N3/233 ,  H04N5/68

摘要： A vertical deflection circuit for a color picture tube apparatus, which reduces a white horizontal belt-like area that appears near vertical center of a color picture tube screen, caused by the operation of a convergence correction circuit using switching characteristics of a diode. The circuit comprises a vertical deflection yoke and a vertical linearity correction circuit connected to the vertical deflection yoke. The vertical deflection yoke has a vertical deflection coil, a convergence correction circuit using a diode as a switch, and a vertical coma aberration correction coil. An impedance of the vertical linearity correction circuit varies within a range where a vertical deflection current is in the vicinity of 0 A so as to reduce an impedance of the vertical deflection circuit.

摘要翻译： 一种用于彩色显象管装置的垂直偏转电路，其通过使用二极管的开关特性的会聚校正电路的操作而导致在彩色显像管屏幕的垂直中心附近出现的白色水平带状区域。 电路包括垂直偏转线圈和连接到垂直偏转线圈的垂直线性校正电路。 垂直偏转线圈具有垂直偏转线圈，使用二极管作为开关的会聚校正电路和垂直彗形像差校正线圈。 垂直线性校正电路的阻抗在垂直偏转电流在0A附近的范围内变化，以减小垂直偏转电路的阻抗。

公开(公告)号：US6147454A

公开(公告)日：2000-11-14

申请号：US186431

申请日：1998-11-05

申请人： Yukio Uchida ,  Tomoaki Iwamoto ,  Tomohiro Sakata

发明人： Yukio Uchida ,  Tomoaki Iwamoto ,  Tomohiro Sakata

IPC分类号： H01J29/00 ,  H04N9/29 ,  H01J29/56

CPC分类号： H01J29/003 ,  H04N9/29 ,  H01J2229/0015 ,  H01J2229/8634

摘要： A display unit that enables reduction in number of additional parts, decrease in leakage magnetic field in a VLF band generated from the display unit in all directions at low cost, and suppression of the leakage magnetic field to the specified value or less according to MPR-II Standard with tolerance is provided. The display unit comprises a cathode-ray tube having a neck portion, a deflection yoke 2 that is mounted at a predetermined position on a periphery of the neck portion, and a driving circuit 3 that has a coil 4 and drives the deflection yoke 2. The driving circuit 3 (the coil 4) is provided at such a position and in such a direction that a magnetic field E.sub.2 generated from the driving circuit 3 (the coil 4) cancels out a leakage magnetic field generated E.sub.1 from the deflection yoke 2 substantially at the position in front of and 50 cm away from the center of a face panel of the cathode-ray tube.

摘要翻译： 一种显示单元，其能够减少附加部件的数量，以低成本在所有方向上从显示单元产生的VLF频带中的泄漏磁场减小，并且根据MPR-抑制将泄漏磁场抑制到指定值以下。 提供了具有公差的II标准。 显示单元包括具有颈部的阴极射线管，安装在颈部周边的预定位置的偏转线圈2和具有线圈4并驱动偏转线圈2的驱动电路3。 驱动电路3（线圈4）设置在从驱动电路3（线圈4）产生的磁场E2基本上抵消来自偏转线圈2的产生的E1的泄漏磁场的位置和方向上 在阴极射线管的面板的中心前方和距离中心50cm的位置处。