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公开(公告)号：EP0064757A3
公开(公告)日：1984-06-06
申请号：EP82104042
申请日：1982-05-10
申请人： HITACHI, LTD.
摘要： A color television receiver includes a color picture tube having three electron guns including cathodes and heaters therefor, respectively, and an automatic cutoff adjusting circuit for adding a reference voltage signal substantially at a black level to a luminance signal during an interval begin ning substantially at the end of a vertical lanking period, and for detecting cathode currents flowing toward the cathodes during the above-described interval to control cathode voltages for the cathodes for keeping the cathode currents at a predetermined level by way of feedback of voltages proportional to the cathode currents. There is provided a circuit for applying a positive voltage to each of the heaters during the above-described interval to reduce a potential difference between the heater and corresponding one of the cathodes to thereby lower a leakage current flowing between the cathode and the heater.
摘要翻译： 一种彩色电视接收机包括分别具有三个电子枪的彩色显象管，它们分别包括阴极和加热器，以及一个自动切断调节电路，用于在基本上在结束时间间隔开始的间隔期间将基本上处于黑电平的基准电压信号加到亮度信号上 并且用于检测在上述间隔期间流向阴极的阴极电流，以控制阴极的阴极电压，以通过与阴极电流成比例的电压的反馈将阴极电流保持在预定水平。 提供了一种用于在上述间隔期间向每个加热器施加正电压的电路，以减小加热器和相应一个阴极之间的电位差，从而降低在阴极和加热器之间流动的漏电流。
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2.发明公开
公开(公告)号：EP0635160A4
公开(公告)日：1995-07-05
申请号：EP94901606
申请日：1993-11-19
申请人： CHEN HSING YAO
发明人： CHEN HSING-YAO
CPC分类号： H04N9/20 , H01J29/481 , H01J29/50 , H01J2229/507
摘要： A multi-beam electron gun (60) for a color cathode ray tube (CRT) includes a plurality of vertically spaced, horizontal inline beams, where each inline array of beams provides the three primary colors and adjacent inline beam arrays simultaneously trace adjacent horizontal scan lines (72a, 72b), where each inline array of beams provides three primary colors and adjacent inline beam arrays simultaneously trace adjacent horizontal scan lines (83a, 83b) on the color CRT's display screen (61). Each inline array of beams is modulated in accordance with that portion of the video image which they form allowing adjacent, vertically spaced inline arrays to write different video image information on the screen in simultaneously forming adjacent portions of the color video image. Simultaneously providing color video image information on more than one horizontal scan line allows for a reduction in horizontal scan frequency and associated magnetic deflection yoke operating criteria, and also increases beam dwell time on the screen's phosphor elements allowing for a reduction in individual beam current without sacrificing video image brightness while improving video image resolution.
摘要翻译： 用于彩色阴极射线管（CRT）的多光束电子枪包括多个垂直间隔的水平内联光束，其中每个线内阵列提供红色，绿色和蓝色三个原色以及相邻的在线光束阵列同时追踪 彩色CRT显示屏上的相邻水平扫描线。 梁的每个水平直列阵列中的光束聚焦在显示屏上的公共点上，三个光束一致地横过屏幕偏转。 根据它们形成的每个视频图像的一部分来调制每个线阵列，允许相邻的垂直间隔的在线阵列在屏幕上写入不同的视频图像信息，同时形成彩色视频图像的相邻部分。 同时在多于一个水平扫描线上提供彩色视频图像信息允许降低水平扫描频率和相关的磁偏转线圈操作标准，并且还增加了屏幕的荧光体元件上的光束驻留时间，从而允许减少单个光束电流而不牺牲 视频图像亮度，同时提高视频图像分辨率。 在一个实施例中，通过向G1控制网格中的分段导电部分提供视频驱动信号来调制单个波束，其中每个导电部分包括光束通过孔，或者在另一个实施例中，每个阴极与每个阴极对准，并且引导发射的电子通过 G1控制网格中的相关孔径。
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3.发明公开
公开(公告)号：EP0024477A2
公开(公告)日：1981-03-11
申请号：EP80102580.0
申请日：1980-05-09
发明人： Ainscow, Frank
IPC分类号： H04N9/20
摘要： Multibeam cathode ray tube apparatus incorporates control circuits for maintaining the relative intensity of the beams over a range of settings of the brightness control. As applied to a three beam colour tube, at least two, and preferably all three, of the electron guns have each a control circuit located between the control grid (V g1 ) and a variable voltage source (V) which constitutes the brightness control of the display. A potentiometer (R,) allows the voltage (V) to be variably attenuated and a second potentiometer (R 2 ) acting in conjunction with a current source (1) allows the attenuated voltage to have a variable voltage added thereto. The potentiometers (R, and R 2 ) for each electron gun are adjusted to bring the brightness versus control voltage characteristic for each gun into coincidence. The current source (I) may be constituted by a fixed resistor and a fixed voltage. The invention is also applicable to multibeam monochrome tubes.
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公开(公告)号：EP3198880A1
公开(公告)日：2017-08-02
申请号：EP15845221.9
申请日：2015-06-26
申请人： Thomson Licensing
CPC分类号： H01H21/282 , H01H9/226 , H04N5/64
摘要： An electronic device is provided that includes an electronic component within the electronic device, a kill switch; an access door providing access to the electronic component and the kill switch and a latch for securing access to the electronic component in a closed position and for giving access to the electronic component in an open position. The latch activates the kill switch in the open position, independently of a position of the access door.
摘要翻译： 提供了机顶盒或网关设备，其包括：顶部; 在垂直定向的电子设备内的电子部件; 网关内的终止交换机; 作为门的一部分的检修门，其中检修门提供对电子部件和停用开关的访问; 以及用于固定所述电子部件并启动所述停止开关的闩锁，其中，当所述存取门关闭时，所述闩锁位于所述电子部件与所述存取门之间。
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5.发明授权Methods and apparatus for reducing electromagnetic interference emisson from a cathode ray tube video display system 失效从阴极射线管的视频显示装置降低电磁干扰的方法和装置
公开(公告)号：EP0527577B1
公开(公告)日：1999-05-06
申请号：EP92306975.1
申请日：1992-07-30
发明人： Rindal, Abraham E.
IPC分类号： H04N9/20
CPC分类号： H04N9/20
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公开(公告)号：EP3198880A4
公开(公告)日：2018-07-11
申请号：EP15845221
申请日：2015-06-26
申请人： THOMSON LICENSING
CPC分类号： H01H21/282 , H01H9/226 , H04N5/64
摘要： An electronic device is provided that includes an electronic component within the electronic device, a kill switch; an access door providing access to the electronic component and the kill switch and a latch for securing access to the electronic component in a closed position and for giving access to the electronic component in an open position. The latch activates the kill switch in the open position, independently of a position of the access door.
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公开(公告)号：EP0492574A1
公开(公告)日：1992-07-01
申请号：EP91122106.7
申请日：1991-12-23
申请人： HITACHI, LTD.
发明人： Ogino, Masanori , Yamada, Takeo , Ikeda, Miyuki , Fujikura, Tsuneo Hamingu Hitachi E207, , Fujiwara, Takahiko , Nakagiri, Etsuhiro
CPC分类号： H04N9/645
摘要： A cathode ray tube display in which a signal (22-6') for detection of a cathode current is inserted into a part of a vertical blanking period of a video signal to be displayed, a cathode current corresponding to the signal for detection is detected, and a cathode voltage or a grid voltage is negative feedback controlled so that the detected cathode current becomes constant, thereby stabilizing the cathode current, wherein the display has a local overscan circuit (21, 22) for executing a vertical scan on the screen by a width larger than a predetermined scan width only at a timing of the cathode current detecting signal inserted for a vertical blanking period, and even in the case where an underscan system to scan by a width smaller than a predetermined display screen width is used as a scan system of the screen display, it is prevented that a harmful visible display image by the cathode current detecting signal appears on the screen.
摘要翻译： 一种阴极射线管显示器，其中用于检测阴极电流的信号（22-6'）插入到要显示的视频信号的垂直消隐期的一部分中，检测与用于检测的信号相对应的阴极电流 并且阴极电压或电网电压被负反馈控制，使得检测到的阴极电流变得恒定，从而稳定阴极电流，其中显示器具有局部过扫描电路（21,22），用于在屏幕上执行垂直扫描 仅在垂直消隐期间插入的阴极电流检测信号的定时，大于预定扫描宽度的宽度，并且即使在以小于预定显示画面宽度的宽度扫描的欠扫描系统被使用为 屏幕显示的扫描系统，防止了阴极电流检测信号的有害可见显示图像出现在屏幕上。
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公开(公告)号：EP0020910A1
公开(公告)日：1981-01-07
申请号：EP80102084.3
申请日：1980-04-18
发明人： Judd, Ian David , Paton, Andrew
IPC分类号： H04N9/20
CPC分类号： H04N9/20
摘要： Information about the position of an electron beam in a shadow mask colour cathode-ray tube is obtained by detecting a signal representative of the electron beam current intercepted by the shadow mask. The signal may be derived by detecting the current generated by the electron beam in the shadow mask, or in the conductive layer at the tube screen, or by detecting the difference between the electron beam currents in the mask and at the screen. In the latter case, the shadow mask 2 and the conductive layer 3 are connected respectively to the ends of the primary winding 6 of a transformer. The difference currents are detected by a secondary winding 9. A centre tap 8 of the primary winding is connected to the tube EHT. EHT isolation may also be achieved by optical or capacitive decoupling. The shadow mask may have shaped apertures to generate distinctive difference currents. In a preferred embodiment the apertures are slits or rows of slots extending from one side to the other of the shadow mask and a line raster is such that each line coincides with a different slit.
摘要翻译： 通过检测表示由荫罩截取的电子束电流的信号，获得关于阴影阴极射线管中的电子束的位置的信息。 该信号可以通过检测由荫罩中的电子束或管屏的导电层产生的电流，或通过检测掩模中的电子束电流与屏幕之间的差异来得到。 在后一种情况下，荫罩2和导电层3分别连接到变压器的初级绕组6的端部。 差分电流由次级绕组9检测。初级绕组的中心抽头8连接到管EHT。 EHT隔离也可以通过光学或电容去耦实现。 荫罩可以具有形状的孔以产生不同的差异电流。 在优选实施例中，孔是从荫罩的一侧延伸到另一侧的狭缝或一排槽，并且线光栅使得每条线与不同的狭缝重合。
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公开(公告)号：EP0492574B1
公开(公告)日：1995-09-27
申请号：EP91122106.7
申请日：1991-12-23
申请人： HITACHI, LTD.
发明人： Ogino, Masanori , Yamada, Takeo , Ikeda, Miyuki , Fujikura, Tsuneo Hamingu Hitachi E207, , Fujiwara, Takahiko , Nakagiri, Etsuhiro
CPC分类号： H04N9/645
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10.发明公开Methods and apparatus for reducing electromagnetic interference emisson from a cathode ray tube video display system 失效从阴极射线管的视频显示装置降低电磁干扰的方法和装置。
公开(公告)号：EP0527577A1
公开(公告)日：1993-02-17
申请号：EP92306975.1
申请日：1992-07-30
发明人： Rindal, Abraham E.
IPC分类号： H04N9/20
CPC分类号： H04N9/20
摘要： Video signals for each primary color are delayed in time relative to every other primary color video signals. When displayed on a cathode ray tube ("CRT") display, the time delayed video signals will result in a separated color pattern for each image displayed. Separated color images are subsequently realigned through use of electron beam deflection controls affecting the horizontal and vertical displacement of electron beams for each color. Measurement of EMI at a far field point varies between zero (no EMI) and no reduction in measurable EMI, depending on the frequency of the video signals and the amount of time delay induced therein. In alternative embodiments, time shifting of video signals may be accomplished either by discrete filter components, simple propagation delay lines.
摘要翻译： 对于各原色的视频信号被延迟在时间上相对于每个其他基色的视频信号。 当阴极射线管显示（“CRT”）显示器，所述时间延迟的视频信号将导致显示的每个图像的颜色分离的图案。 分离彩色图像通过使用电子束偏转控制影响电子束的各种颜色的水平和垂直位移的随后重新对准。 在远场点的EMI测量零（没有EMI）和可测量的EMI没有减少之间变化，这取决于视频信号的频率和时间延迟在其中感应出的量。 在可替换的实施例中，视频信号的时移可以由分立的滤波器元件，简单传播延时线来实现。
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