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11. 发明授权

US06194848B1 Automatic magnetic field compensator for a CRT 失效
标题翻译： CRT自动磁场补偿器
公开(公告)号：US06194848B1
公开(公告)日：2001-02-27
申请号：US09186365
申请日：1998-11-05
申请人： Sang-Hae Lee
发明人： Sang-Hae Lee
IPC分类号： G09G104
CPC分类号： H04N9/29 , H01J2229/0038
摘要： An apparatus for automatically compensating for the deflection of electron beam in a cathode ray tube display by the earth's magnetic field (EMF) detects the EMF at the installation site of the cathode ray tube display by the EMF detector comprising a plurality of magnetic sensors for sensing the x, y, z component of magnetic field. A pulse generator and a counter transform each detected component of the EMF into a predetermined gate signal and then output the gate signal to the microcomputer. The microcomputer compares the gate signal indicative of the detected EMF with a reference signal stored in the internal memory to obtain a compensation value. The microcomputer further outputs the compensation value to a processor, which automatically compensates for the deflection of electron beam in a cathode ray tube.
摘要翻译：用于通过地球磁场（EMF）自动补偿阴极射线管显示器中的电子束的偏转的装置通过EMF检测器检测阴极射线管显示器的安装位置处的EMF，该EMF检测器包括用于感测的多个磁传感器磁场的x，y，z分量。脉冲发生器和计数器将EMF的每个检测分量变换成预定的门信号，然后将门信号输出到微计算机。微型计算机将指示检测到的EMF的门信号与存储在内部存储器中的参考信号进行比较，以获得补偿值。微计算机还向处理器输出补偿值，该处理器自动补偿阴极射线管中电子束的偏转。

12. 发明授权

US5751112A CRT magnetic compensating circuit with parallel amorphous wires in the sensor 失效
标题翻译： CRT磁补偿电路在传感器中具有并联非晶线
公开(公告)号：US5751112A
公开(公告)日：1998-05-12
申请号：US698389
申请日：1996-08-15
申请人： Akio Monma , Yasunori Yamanobe , Takashi Sato
发明人： Akio Monma , Yasunori Yamanobe , Takashi Sato
IPC分类号： G01R33/02 , G01R33/025 , G01R33/04 , H01J29/00 , H04N3/24 , H04N9/29
CPC分类号： G01R33/04 , G01R33/025 , G01R33/063 , H01J29/003 , H04N9/29 , H01J2229/0038
摘要： A magnetic compensating circuit includes a magnetic sensor (1), a control circuit (2) for generating a signal for magnetic compensation, and coils (3) for magnetic compensation. The magnetic sensor has a pair of amorphous magnetic substance wires (101) arranged in parallel, coils (102) for providing the pair of amorphous magnetic substance wires with bias magnetic fields in directions opposite to each other, a high-frequency power source (105) for supplying the pair of amorphous magnetic substance wires with high-frequency currents, and circuits (106, 107, 108, 109) for outputting a potential difference derived from the output of the pair of amorphous magnetic substance wires. Thus, this magnetic compensating circuit is capable of detecting a minute external magnetic field with high accuracy.
摘要翻译：磁补偿电路包括磁传感器（1），用于产生用于磁补偿的信号的控制电路（2）和用于磁补偿的线圈（3）。磁传感器具有平行排列的一对非晶磁性体线（101），线圈（102），用于使一对非晶磁性体线彼此相反的方向提供偏置磁场，高频电源（105）），以及用于输出由一对非晶磁性物质线的输出导出的电位差的电路（106,107,108,109）。因此，这种磁补偿电路能够高精度地检测微小的外部磁场。

13. 发明授权

US5742128A Apparatus for mitigating the effects of ambient magnetic fields on the operation of a CRT 失效
标题翻译：用于减轻环境磁场对CRT操作的影响的装置
公开(公告)号：US5742128A
公开(公告)日：1998-04-21
申请号：US651448
申请日：1996-05-22
申请人： Winfield Scott Bearce , Christopher N. Haywood , John Druchunas
发明人： Winfield Scott Bearce , Christopher N. Haywood , John Druchunas
IPC分类号： H01J29/00 , H04N9/29
CPC分类号： H04N9/29 , H01J29/003 , H01J2229/0038 , H01J2229/0053
摘要： Apparatus for mitigating the adverse effects of magnetic interference on the operation of a CRT is provided. More specifically, magnetic sensors are placed in a gap formed between a front bezel and a rear enclosure comprising a magnetic shield enclosing all but the viewing surface of a CRT. The gap serves to concentrate the on-axis magnetic field and the resultant signal from the sensors is amplified to drive current through a compensation coil located inside the front bezel and in front of the viewing surface of the CRT. The current generates a compensation field that mitigates the incoming on-axis magnetic field. The ambient magnetic field is also sensed by a three axis magnetic sensing assemblage located outside the magnetic shield. The output of the sensing arrangement is operated on to produce a trigger to start a degauss cycle. A resonant degauss circuit, including a degauss coil also disposed around the inside of the front bezel and in front of the viewing surface of the CRT, is driven by a balanced bridge rail switch which repeatedly reverses the polarity of the voltage across the resonant circuit. This produces a high voltage squarewave that serves to drive current through the degauss coil. This generates a degauss field which degausses the CRT.
摘要翻译：提供了用于减轻磁干扰对CRT操作的不利影响的装置。更具体地说，磁传感器被放置在形成在前挡板和后围壳之间的间隙中，该间隙包括围绕除CRT观察表面之外的所有磁屏蔽的磁屏蔽。该间隙用于集中在轴上的磁场，并且来自传感器的合成信号被放大，以驱动电流通过位于前挡板内的补偿线圈并在CRT的观察表面前方。电流产生一个减小输入的轴上磁场的补偿场。环境磁场也由位于磁屏蔽外部的三轴磁感应组件感测到。感测装置的输出被操作以产生启动消磁循环的触发器。包括围绕前挡板的内部并且在CRT的观察表面前方布置的消磁线圈的谐振消磁电路由平衡的桥轨开关驱动，该开关重复地反转谐振电路两端的电压的极性。这产生用于驱动电流通过消磁线圈的高电压方波。这产生消磁CRT的消磁场。

14. 发明授权

US5017832A Magnetic cancelling apparatus for color cathode-ray tube 失效
标题翻译：用于彩色阴极射线管的磁性消除装置
公开(公告)号：US5017832A
公开(公告)日：1991-05-21
申请号：US426849
申请日：1989-10-26
申请人： Hidenori Takita
发明人： Hidenori Takita
IPC分类号： H01J29/00 , H04N9/29
CPC分类号： H04N9/29 , H01J29/003 , H01J2229/003 , H01J2229/0038
摘要： A magnetic cancelling apparatus for a color cathode-ray tube which is to cancel external magnetic fields acting on the color cathode-ray tube, can prevent deterioration of the screen color purity. The apparatus includes a magnetic sensor for detecting a magnetic field in a predetermined direction acting on the cathode-ray tube. The output of the magnetic sensor is amplified and then fed to a cancelling coil, thereby permitting the screen purity to be kept in best condition even under change in direction of the external magnetic field such as the geomagnetism.
摘要翻译：用于消除作用在彩色阴极射线管上的外部磁场的用于彩色阴极射线管的磁性消除装置可以防止屏幕颜色纯度的劣化。该装置包括用于检测作用在阴极射线管上的预定方向上的磁场的磁传感器。磁传感器的输出被放大，然后被馈送到消除线圈，从而即使在诸如地磁的外部磁场的方向改变的情况下也可以将丝网纯度保持在最佳状态。

15. 发明授权

US4996461A Closed loop bucking field system 失效
标题翻译：闭环补偿现场系统
公开(公告)号：US4996461A
公开(公告)日：1991-02-26
申请号：US404147
申请日：1989-09-07
申请人： Robert Bentley
发明人： Robert Bentley
IPC分类号： H04N3/23 , H01J29/00 , H04N9/29
CPC分类号： H04N9/29 , H01J29/003 , H01J2229/003 , H01J2229/0038
摘要： A system for improving the operation of a cathode ray tube (CRT) is disclosed whereby interference caused by external magnetic fields is mitigated. The system comprises a CRT having a CRT magnetic shield housing and at least one electromagnetic field sensor disposed adjacent to the inner surface of the CRT housing. Sensors form to generate a reference magnetic field and to generate a sensor output signal in response to the detection of both the reference field and an external field as sensed within the housing. A bucking field coil drive circuit is provided in electrical communication with the field sensor, the drive circuit being operative to generate a bucking field coil drive signal responsive to the field sensor output signal. A bucking field coil is disposed circumferentially about the CRT and is driven by the bucking field coil drive signal. The bucking field coil generates a bucking electromagnetic field in opposition to the sensed external magnetic field, thereby opposing and reducing the degrading effects of the external magnetic field on the CRT display.

16. 发明申请

US20090262237A1 High Deflection Angle CRT Display 审中-公开
标题翻译：高偏转角CRT显示
公开(公告)号：US20090262237A1
公开(公告)日：2009-10-22
申请号：US11990534
申请日：2006-06-14
申请人： Richard Hugh Miller
发明人： Richard Hugh Miller
IPC分类号： H04N9/22
CPC分类号： H04N9/29 , H01J29/76 , H01J2229/0038 , H04N9/22
摘要： A display has a panel (3) connected to a funnel (5). An electron gun assembly (13) positioned in a neck (4) at a narrow end of the funnel is provided for directing electron beams toward a screen (12) on the panel. The display includes a yoke (14) to scan the beams across the screen, a degauss coil positioned on the funnel for degaussing the display, and a DC canceller coil (72) for counteracting beam displacement caused by North/South magnetic fields. The display can include a means to dynamically correct beam landing errors, additional coils near the wide end of the funnel to further assist in correcting beam landing errors, and a magnetic field sensor (17) to sense ambient magnetic fields and generate signal to appropriate drivers to correct for beam landing errors.
摘要翻译：显示器具有连接到漏斗（5）的面板（3）。设置在漏斗的窄端处的颈部（4）中的电子枪组件（13）用于将电子束导向面板上的屏幕（12）。显示器包括用于扫描横跨屏幕的光束的磁轭（14），位于漏斗上的消磁线圈用于消磁显示器，以及用于抵消由北/南磁场引起的光束位移的DC消除器线圈（72）。显示器可以包括用于动态地校正光束着落误差的装置，在漏斗的宽端附近的附加线圈以进一步帮助校正光束着落误差;以及磁场传感器（17），用于感测环境磁场并产生信号到适当的驱动器纠正光束着陆误差。

17. 发明授权

US06246448B1 Purity adjustment device for video display appliance 失效
标题翻译：视频显示设备的纯度调节装置
公开(公告)号：US06246448B1
公开(公告)日：2001-06-12
申请号：US08929440
申请日：1997-09-12
申请人： Kwang Ho Park
发明人： Kwang Ho Park
IPC分类号： H04N565
CPC分类号： H01J29/003 , H01J2229/0038 , H04N9/29
摘要： A purity adjustment device for a video display appliance which automatically compensates for a purity of a picture displayed on a CRT screen that is varied due to the change of the earth magnetic field by electromagnetic deflection using a purity coil. The picture adjustment device includes an initial value determining section for determining a first voltage corresponding to an earth magnetic field of a specified place where a purity of a picture displayed on the CRT presents white, an earth magnetic field detecting coil for detecting the earth magnetic field of a present place where the video display appliance is located, and producing a second voltage corresponding to the detected earth magnetic field, a comparison-amplifying section for comparison-amplifying a third voltage, in which the first and second voltages are superimposed together, with reference to an input reference voltage, an amplifying section for amplifying an output of the comparison-amplifying section to produce a purity compensation voltage, and a purity coil for producing a magnetic field for controlling a position of electron beams scanned on a screen of the CRT in accordance with the purity compensation voltage.
摘要翻译：一种用于视频显示设备的纯度调节装置，其自动补偿由于通过使用纯度线圈的电磁偏转引起的地球磁场变化而在CRT屏幕上显示的图像的纯度。图像调整装置包括：初始值确定部，用于确定与CRT上显示的图像的纯度呈现白色的指定场所的地球磁场对应的第一电压，用于检测接地磁场的地磁场检测线圈和产生对应于检测到的地球磁场的第二电压的比较放大部分，用于将第一和第二电压叠加在一起的第三电压进行比较放大，与第参考输入参考电压，放大部分，用于放大比较放大部分的输出以产生纯度补偿电压;以及纯度线圈，用于产生用于控制在CRT屏幕上扫描的电子束位置的磁场按照纯度补偿电压。

18. 发明授权

US5614791A Cathode ray tube 失效
标题翻译：阴极射线管
公开(公告)号：US5614791A
公开(公告)日：1997-03-25
申请号：US673015
申请日：1996-07-01
申请人： Hisao Kume , Hiromu Hosokawa , Minoru Watanabe , Kenichiro Takayanagi
发明人： Hisao Kume , Hiromu Hosokawa , Minoru Watanabe , Kenichiro Takayanagi
IPC分类号： H04N9/29 , H01J29/00 , H01J29/56
CPC分类号： H01J29/003 , H01J2229/0038 , H01J2229/0053
摘要： A cathode ray tube apparatus can accurately, easily and automatically correct influences exerted on both of a beam landing drift and an image distortion drift by terrestrial magnetism applied to a cathode ray tube (CRT). A correction current based on an output of a terrestrial magnetism sensor (45) is supplied to a Z-axis correction coil (41) and an X--X axis correction coil (42). A terrestrial magnetism component (B.sub.H cos.theta.) of Z-axis direction is canceled by a correction magnetic flux generated by the Z-axis correction coil (41), and a terrestrial magnetism component (B.sub.H sin.theta.) of X-axis direction is canceled by the X--X axis correction coil (42), whereby a beam landing drift and a image distortion drift are corrected automatically.
摘要翻译：阴极射线管装置可以准确，容易且自动地校正施加到阴极射线管（CRT）的地面磁场对束着陆漂移和图像失真漂移两者的影响。基于地磁传感器（45）的输出的校正电流被提供给Z轴校正线圈（41）和X-X轴校正线圈（42）。通过由Z轴校正线圈（41）产生的校正磁通来消除Z轴方向的地磁分量（BHcosθ），并且X轴方向的地磁分量（BHsinθ）被取消通过XX轴校正线圈（42），从而自动校正光束着地偏移和图像失真漂移。

19. 发明授权

US5510677A Method for correcting the effect of terrestrial magnetism on electron beam tracking 失效
标题翻译：用于校正地磁对电子束跟踪的影响的方法
公开(公告)号：US5510677A
公开(公告)日：1996-04-23
申请号：US273074
申请日：1994-07-11
申请人： Masaru Nagashima
发明人： Masaru Nagashima
IPC分类号： H01J9/00 , H04N9/29 , H05B37/02 , H01J29/06
CPC分类号： H01J9/003 , H04N9/29 , H01J2229/0038
摘要： A method and apparatus for correcting the tracking of an electron beam which includes the steps of generating a supplemental magnetic field, generating a reverse magnetic field and removing the correcting magnetic field. The direction of the supplemental magnetic field is substantially the same as the direction of a terrestrial magnetism. The reverse magnetic field substantially offsets the terrestrial magnetism.
摘要翻译：一种用于校正电子束跟踪的方法和装置，包括产生补充磁场，产生反向磁场和去除校正磁场的步骤。补充磁场的方向基本上与地磁方向相同。反向磁场大大抵消了地磁。

20. 发明授权

US5488270A Color CRT display apparatus 失效
标题翻译：彩色CRT显示设备
公开(公告)号：US5488270A
公开(公告)日：1996-01-30
申请号：US230550
申请日：1994-04-20
申请人： Hidenori Takita , Tatsuhiro Hirakawa
发明人： Hidenori Takita , Tatsuhiro Hirakawa
IPC分类号： H01J29/76 , G09G1/00 , H01J29/00 , H04N9/28 , H01J29/56
CPC分类号： H01J29/003 , H01J2229/0038
摘要： A color CRT display apparatus in which the polarity and the strength of the external magnetic field in the tube direction of a CRT are detected by a magnet detecting element, and a current corresponding to the strength of the external magnetic field is supplied to a compensating coil which is wound around a funnel portion between a display panel and a deflection yoke and at a place where a purity rotation and a raster rotation by said external magnetic field in said tube direction are simultaneously compensated, thereby both the purity rotation and the raster rotation can be automatically compensated in an optimum state.
摘要翻译：一种彩色CRT显示装置，其中通过磁体检测元件检测CRT的管方向上的外部磁场的极性和强度，并且将与外部磁场强度相对应的电流提供给补偿线圈其围绕显示面板和偏转线圈之间的漏斗部分并且在同时补偿由所述管方向上的所述外部磁场的纯度旋转和光栅旋转的位置，从而纯度旋转和光栅旋转均可在最佳状态下自动补偿。

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