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1. 发明申请

WO00019727A1 A DIGITAL CUT-OFF CONTROL LOOP FOR TV USING SPEEDING AND BLANKING CIRCUITS 审中-公开
标题翻译：数字切断控制环电视机使用速度和空白电路
公开(公告)号：WO00019727A1
公开(公告)日：2000-04-06
申请号：PCT/SG1998/000076
申请日：1998-09-25
IPC分类号： H04N9/64 , H04N9/72
CPC分类号： H04N9/645 , H04N9/72
摘要： An improved digital cut-off control loop for black level adjustment in a video processor for controlling RGB output signals. The improved circuit advantageously provides a higher resolution of the black level adjustment, and a short cut-off convergence time when the TV set is switched on. The improved circuit can also blank the RGB output when the cut-off control loop has not converged to the correct level.
摘要翻译：用于控制RGB输出信号的视频处理器中用于黑电平调整的改进的数字切断控制回路。改进的电路有利地提供黑电平调整的较高分辨率，以及当电视机接通时的短截止会聚时间。当截止控制回路没有收敛到正确的电平时，改进的电路也可以空白RGB输出。

2. 发明申请

WO9728525A3 BLACK LEVEL SETTING 审中-公开
标题翻译：黑色水平设置
公开(公告)号：WO9728525A3
公开(公告)日：1997-10-02
申请号：PCT/IB9700016
申请日：1997-01-16
申请人： PHILIPS ELECTRONICS NV , PHILIPS NORDEN AB
发明人： VAN DEN BROEKE LEENDERT ALBERT
IPC分类号： G09G1/00 , H04N5/16 , H04N5/59 , H04N9/16 , H04N9/64 , H04N9/72 , H04N17/04
CPC分类号： H04N5/59 , H04N5/16 , H04N9/645 , H04N9/72
摘要： In a method of black level and gain control setting, comprising the steps of applying (42) at least two mutually differing control values (Vd1, Vd2) in a first predetermined ratio, and controlling (35, 3, 7, 15) the black level and gain in response to the at least two mutually differing control values (Vd1, Vd2), at least mutually differing reference values (Iref1, Iref2) in a second predetermined ratio and corresponding to the at least two mutally differing control values (Vd1, Vd2) are applied (47) to the controlling step (35, 3, 7, 15), where a predetermined relationship exists between the first predetermined ratio and the second predetermined ratio, a first error value depending on a first control value (Vd1) and a first reference value (Iref1) is integrated (43) to obtain a black level setting value, and a second error value depending on a second control value (Vd2) and a second reference value (Iref2) is integrated (44) to obtain a gain setting value.

3. 发明申请

WO00038411A1 BLANKED DYNAMIC FOCUS POWER SUPPLY TRANSIENT ELIMINATION 审中-公开
标题翻译：空白动态聚焦电源瞬态消除
公开(公告)号：WO00038411A1
公开(公告)日：2000-06-29
申请号：PCT/US1999/030555
申请日：1999-12-21
IPC分类号： G09G1/00 , H04N3/26 , H04N5/68 , H04N9/72
CPC分类号： H04N3/26
摘要： In order to accurately measure a low current bias in an automatic kine bias (AKB) circuit during several video lines that immediately follow vertical retrace, dynamic focus is interrupted by deactivating a dynamic focus voltage amplifier. The amplifier draws its power from a horizontal flyback transformer. In order to avoid a horizontal transient which may occur when the dynamic focus voltage amplifier is reactivated after being deactivated during a vertical blanking interval, the dynamic focus amplifier draws a current during vertical blanking which approximates the average current drawn during vertical scan.
摘要翻译：为了在几个立即跟随垂直回扫的视频行中精确测量自动电位偏置（AKB）电路中的低电流偏置，通过停用动态聚焦电压放大器来中断动态聚焦。放大器从水平回扫变压器吸取功率。为了避免当在垂直消隐间隔期间停用动态聚焦电压放大器被重新激活之后可能发生的水平瞬变，动态聚焦放大器在垂直扫描期间绘制一个电流，其近似垂直扫描期间平均电流。

4. 发明申请

WO99048295A1 VIDEO SIGNAL CORRECTION APPARATUS FOR SATELLITE RECEIVER 审中-公开
标题翻译：卫星接收机视频信号校正装置
公开(公告)号：WO99048295A1
公开(公告)日：1999-09-23
申请号：PCT/US1999/005357
申请日：1999-03-11
IPC分类号： H04N5/445 , H04N7/16 , H04N9/64 , H04N9/72 , H04N21/47
CPC分类号： H04N9/64 , H04N5/44513 , H04N7/165 , H04N9/72 , H04N21/431 , H04N21/47 , H04N21/6143 , H04N21/6547
摘要： An apparatus (40), method and system for transmitting a video signal and picture correction information via a satellite transmission system. Mechanisms (45, 50) for receiving a transmitted video signal and correction information and for processing (52, 53, 57) a received video signal based on the correction information before display.
摘要翻译：一种用于经由卫星传输系统发送视频信号和图像校正信息的装置（40），方法和系统。用于接收发送的视频信号和校正信息并基于显示之前的校正信息处理（52,53,57）接收的视频信号的机构（45,50）。

5. 发明申请

WO2008024424A2 METHOD AND APPARATUS FOR DC RESTORATION USING FEEDBACK 审中-公开
标题翻译：使用反馈进行DC恢复的方法和设备
公开(公告)号：WO2008024424A2
公开(公告)日：2008-02-28
申请号：PCT/US2007/018608
申请日：2007-08-21
申请人： RGB SYSTEMS, INC. , HALL, Raymond, William , PARRECO, Donald, E.
发明人： HALL, Raymond, William , PARRECO, Donald, E.
IPC分类号： H04N9/72
CPC分类号： H04N9/72
摘要： A feedback circuit for restoration of DC in video signals is presented. A sample pulse representing the back porch of an incoming video signal is generated from the horizontal sync signal. The sample pulse triggers a sample and hold circuit to acquire the correct offset voltage in the output signal during this back porch period. The offset voltage feeds back through a summing node upstream of either the circuit causing the offset or an input amplifier thereby restoring the video signal to the desired DC voltage level with respect to ground.
摘要翻译：给出了用于视频信号中的DC恢复的反馈电路。表示输入视频信号的后沿的采样脉冲是从水平同步信号产生的。采样脉冲触发采样和保持电路，以在后沿周期期间获取输出信号中正确的偏移电压。偏移电压通过引起偏移的电路或输入放大器的上游的求和节点反馈，由此将视频信号恢复到相对于地面的期望DC电压电平。

6. 发明申请

WO2004066638A1 DISPLAY DEVICE COMPRISING A CATHODE RAY TUBE 审中-公开
标题翻译：包含阴极射线管的显示装置
公开(公告)号：WO2004066638A1
公开(公告)日：2004-08-05
申请号：PCT/IB2003/006164
申请日：2003-12-18
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , BHAT, Janardhana , WU, Chun, H.
发明人： BHAT, Janardhana , WU, Chun, H.
IPC分类号： H04N9/72
CPC分类号： H04N9/72
摘要： The display device has a cathode ray tube (T), which has an electron gun (G) for generating an electron beam and an outer conductive layer (AD). A video processing circuitry (VP) provides a video signal (Vo) having a black level (BLR, BLG, BLB) to a video amplifier (VA) for modulating the electron beam. The video processing circuitry (VP) has black level controlling circuitry (BL) for controlling the black level (BLR, BLG, BLB) of the video signal (Vo). A sensing circuit (S) senses a black current level of the electron beam corresponding to the black level of the video signal (Vo) and feeds back information about the black current level to the black level controlling circuitry (BL) for stabilizing the black current level. The sensing circuit (S) is coupled to a node (X) to which the outer conductive layer (AD) and one of the output terminals of a high-tension generator (H) are coupled.
摘要翻译：显示装置具有阴极射线管（T），其具有用于产生电子束的电子枪（G）和外部导电层（AD）。视频处理电路（VP）向视频放大器（VA）提供具有黑电平（BLR，BLG，BLB）的视频信号（Vo），用于调制电子束。视频处理电路（VP）具有用于控制视频信号（Vo）的黑电平（BLR，BLG，BLB）的黑电平控制电路（BL）。感测电路（S）感测对应于视频信号（Vo）的黑电平的电子束的黑电流电平，并将关于黑电流电平的信息反馈给黑电平控制电路（BL），以稳定黑电流水平。感测电路（S）耦合到外部导电层（AD）和高压发生器（H）的输出端子中的一个耦合到的节点（X）。

7. 发明申请

WO2003027994A3 DISPLAY SYSTEM COMPRISING A VIDEO PROCESSOR 审中-公开
公开(公告)号：WO2003027994A3
公开(公告)日：2003-04-03
申请号：PCT/IB2002/003967
申请日：2002-09-26
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人： MILLER, William, G. , LARAMIE, Mark , KECK, Gregg, W.
IPC分类号： H04N9/72
摘要： A display system (10) which includes a cathode ray tube (CRT) feedback current replacement circuit (20) to simulate the cathode feedback current directly from the from the red, green and blue output biases of the drive signals of the video processor (13). Furthermore, the display system (10) applies vertical blanking to the driving stage (16) when the biases are applied so that these biases will not be visible during a vertical underscanned condition. Shifting the generation of the cathode feedback current prior to the application of the blanking prevents any significant distortion, modification or skewing of the cathode feedback current sensed by the AKB sensing circuitry (19) of the video processor (13).

8. 发明申请

WO01015460A1 GAMMA MATCHING OF A VIDEO PROCESSOR BY MEANS OF TWO MEASURED CURRENTS 审中-公开
标题翻译：通过两个测量电流的视频处理器的GAMMA匹配
公开(公告)号：WO01015460A1
公开(公告)日：2001-03-01
申请号：PCT/EP2000/004894
申请日：2000-05-30
IPC分类号： H04N9/72 , H04N9/69
CPC分类号： H04N9/72
摘要： Recent circuit concepts inject measurement lines, for cutoff and drive control of the cathode current, into each colour channel during the vertical frame blanking period. Owing to the physically dependent exponential beam current characteristic profile as a function of the cathode control voltage (VK), the exponent gamma of the characteristic profile and the ratio of two cathode components (IK1 and IK2) are in this case used to form control reference values for cutoff and drive control, this process being started in each case from a fixed value of the exponent gamma or of the ratio of the two cathode currents (IK1 and IK2). However, it has been found that, if a fixed value is assumed for the exponent gamma or for the ratio of the two cathode currents (IK1 and IK2), it is not possible to achieve an optimum result for displaying monochrome pictures. Thus, according to the invention, the exponent gamma is defined as a function of the colour tube (1). The aim in this case is to reduce a gamma -dependent DC voltage offset (u0f) to zero.
摘要翻译：最近的电路概念在垂直帧消隐期间将用于截止和驱动阴极电流的测量线注入每个颜色通道。由于作为阴极控制电压（VK）的函数的物理依赖指数束电流特性曲线，特征曲线的指数γ和两个阴极组件（IK1和IK2）的比值在这种情况下用于形成控制参考用于截止和驱动控制的值，该过程在每种情况下从指数γ的固定值或两个阴极电流（IK1和IK2）的比率开始。然而，已经发现，如果对于指数γ或两个阴极电流（IK1和IK2）的比率假设固定值，则不可能实现用于显示单色图像的最佳结果。因此，根据本发明，指数γ被定义为彩色管（1）的函数。在这种情况下的目的是将伽马相关的直流电压偏移（u0f）降低到零。

9. 发明申请

WO2004017642A1 SIMPLIFIED OFFSET CURRENT REDUCING CIRCUIT FOR AUTO KINE BIAS (AKB) 审中-公开
标题翻译：简化偏移电流减少电路，用于自动旋转偏置（AKB）
公开(公告)号：WO2004017642A1
公开(公告)日：2004-02-26
申请号：PCT/US2003/025647
申请日：2003-08-14
申请人： THOMSON LICENSING S.A. , RENEAU, Daniel, Lee
发明人： RENEAU, Daniel, Lee
IPC分类号： H04N9/72
CPC分类号： H04N9/72
摘要： The disclosed embodiments relate to a current reduction circuit that reduces offset current from at least one driver circuit. The current reduction circuit comprises circuitry that measures the offset current and produces a measurement current and circuitry that receives the measurement current and responds by maintaining an auto kine bias measurement voltage within a predetermined range.
摘要翻译：所公开的实施例涉及减少来自至少一个驱动器电路的偏移电流的电流减小电路。电流减小电路包括测量偏移电流并产生测量电流的电路，并且产生接收测量电流并通过将自动测量偏置测量电压维持在预定范围内来进行响应的电路。

10. 发明申请

WO2002073979A1 CIRCUIT FOR COMBINING AKB AND BEAM CURRENT LIMITING AND PROJECTION TELEVISION SYSTEM UTILIZING SAME 审中-公开
标题翻译：用于组合AKB和光束电流限制和投影电视系统的电路
公开(公告)号：WO2002073979A1
公开(公告)日：2002-09-19
申请号：PCT/IB2002/000696
申请日：2002-03-08
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人： MILLER, William, G.
IPC分类号： H04N9/72
CPC分类号： H04N5/74 , H04N5/59 , H04N5/68 , H04N9/645
摘要： A video control circuit for use in a projection television system utilizes combined automatic kinescope bias (AKB) control, and average individual beam current sensing and limiting in respective cathode ray tubes (CRTR, CRTG, CRTB). The control circuit includes a video processor (V1) and a feedback circuit (F). The feedback circuit (F) feeds back proportions of red (R), green (G) and blue (B) cathode currents driving the corresponding cathode ray tubes (CRTR, CRTG, CRTB) to the video processor (V1). Based on the proportions fed back, the video processor (V1) applies automatic kinescope bias control by adjusting black levels of the respective cathode currents (R, G, B). The feedback circuit (F) includes at least one average beam current sensing circuit (A) for sensing the proportion of one of the cathode currents (R, G, B). In case the proportion of one of the cathode currents (R,G,B) exceeds a predetermined value the feedback circuit (F) feeds back a beam limiting signal (VABL) to the video processor (V1) for introducing a gain reduction in video gain stages to limit the red (R), green (G) and blue (B) cathode currents.
摘要翻译：用于投影电视系统的视频控制电路利用组合的自动显像管偏置（AKB）控制以及在各个阴极射线管（CRTR，CRTG，CRTB）中的平均单独的光束电流感测和限制。控制电路包括视频处理器（V1）和反馈电路（F）。反馈电路（F）反馈驱动相应的阴极射线管（CRTR，CRTG，CRTB）的红色（R），绿色（G）和蓝色（B）阴极电流到视频处理器（V1）的比例。基于反馈的比例，视频处理器（V1）通过调节各个阴极电流（R，G，B）的黑电平来应用自动显象管偏置控制。反馈电路（F）包括用于感测阴极电流（R，G，B）之一的比例的至少一个平均束电流检测电路（A）。在阴极电流（R，G，B）之一的比例超过预定值的情况下，反馈电路（F）将光束限制信号（VABL）反馈到视频处理器（V1），以引入视频中的增益减小增益级限制红（R），绿（G）和蓝（B）阴极电流。

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