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    • 61. 发明授权
    • Synchronizing signal separating circuit with controlled flywheel stage
    • 同步信号分离电路与受控飞轮级
    • US5608460A
    • 1997-03-04
    • US323963
    • 1994-10-17
    • Albrecht RothermelCarlos Correa
    • Albrecht RothermelCarlos Correa
    • H04N5/08
    • H04N5/08
    • A synchronizing signal separating circuit for a television receiver, comprising: a source of a video signal having a line synchronizing signal component; a line synchronizing signal component separator having an amplitude selective stage and having a flywheel stage imparting a response time constant to the separator which enhances noise immunity; a delay circuit for the video signal, for example a multiple line delay, coupled ,between the video signal source and the separator; a control circuit coupled to the video signal source and evaluating the time positions of line synchronizing pulses of a plurality of successive lines to identify a kind of line phase disturbance in which the line phase of an entire raster is displaced, the control circuit supplying a control signal to the separator indicative of the kind of phase disturbance; and, the flywheel stage being temporarily rendered inoperative responsive to the control signal, for example by temporarily decreasing the response time of the separator, upon identification of the kind of line phase disturbance in which the line phase of an entire raster is displaced. The control circuit may comprise: a second line synchronizing signal component separator; a phase comparator; a digital memory for phase deviations determined by the phase comparator; and, a counter for phase deviatons which generates the control signal upon reaching a predetermined number of phase deviations.
    • 一种用于电视接收机的同步信号分离电路,包括:具有线路同步信号分量的视频信号源; 线路同步信号分量分离器,其具有振幅选择级,并且具有赋予分离器响应时间常数的飞轮级,这增强了抗噪声能力; 视频信号源和分离器之间的用于视频信号的延迟电路,例如多行延迟,耦合在一起; 耦合到所述视频信号源的控制电路,并且评估多个连续线的行同步脉冲的时间位置,以识别整个光栅的线相位偏移的线相位干扰的种类,所述控制电路提供控制 向分离器发出信号,指示相位扰动的种类; 并且,在确定整个光栅的线相位被移位的线路相位干扰的种类的识别之后,例如通过临时减小分离器的响应时间,飞轮级在响应于控制信号时暂时变得不可操作。 控制电路可以包括:第二线路同步信号分量分离器; 相位比较器 由相位比较器确定的用于相位偏差的数字存储器; 以及用于相位偏差的计数器,其在达到预定数量的相位偏差时产生控制信号。
    • 62. 发明授权
    • Method and apparatus for processing video image signals
    • 用于处理视频图像信号的方法和装置
    • US08687115B2
    • 2014-04-01
    • US11793092
    • 2005-12-12
    • Ingo Tobias DoserCarlos CorreaCedric Thebault
    • Ingo Tobias DoserCarlos CorreaCedric Thebault
    • H04N7/01H04N11/20
    • G09G3/2092G09G3/007G09G3/346G09G2300/0439G09G2310/0224G09G2320/0261G09G2340/0407
    • An imager achieves a desired image resolution by successively reproducing partial images which complement each other. The imager assigns pixels from an input image to the respective partial images according to complementing patterns that correspond to the pixel pattern of the imager. The imager reproduces the complementing pattern at different spatial positions, such that the complementing patterns merge. In order to avoid perceived double imaging of moving objects the image signal provided to the imager is assembled from an original image and a motion compensated interpolated image, which is derived from at least two consecutive images. Accordingly, every other partial image that is reproduced is derived from an interpolated image and takes into account movement of objects in the image that takes place between two consecutive images. In one embodiment the partial images are re-combined into one full image in a sequence that anticipates the distribution of the pixels used in the imaging device.
    • 成像器通过连续地再现彼此互补的部分图像来实现期望的图像分辨率。 成像器根据对应于成像器的像素图案的补码图案将输入图像的像素分配给各个部分图像。 成像器在不同的空间位置再现补码图案,使得补码图案合并。 为了避免感觉到的移动物体的双重成像,提供给成像器的图像信号是从原始图像和从至少两个连续图像导出的运动补偿内插图像组装的。 因此,再现的每个其他部分图像从内插图像导出,并且考虑在两个连续图像之间发生的图像中的对象的移动。 在一个实施例中,部分图像以预期成像装置中使用的像素的分布的序列重新组合成一个完整图像。
    • 63. 发明授权
    • Method and apparatus for processing video pictures
    • 用于处理视频图像的方法和装置
    • US08576263B2
    • 2013-11-05
    • US11999565
    • 2007-12-06
    • Carlos CorreaSébastien WeitbruchMohamed Abdallah
    • Carlos CorreaSébastien WeitbruchMohamed Abdallah
    • G09G5/10G09G3/38
    • G09G3/2022G09G3/2029G09G3/28G09G2320/0261G09G2320/0266G09G2320/0271G09G2360/16
    • A method and apparatus for processing video pictures for dynamic false contour effect compensation. Each video picture is divided into at least a first type and second type of area according to the video gradient of the picture. A specific video gradient range is associated to each type. First and second sets of sub-field code words are allocated to the first and second types respectively. The second set is a subset of the first set. The pixels of the first and second types are encoded with the first and second sets of sub-field code words respectively. For at least one horizontal line of pixels including pixels of the first and second type, the area of second type is extended until the next pixel in the first type area is a pixel encoded by a sub-field code word belonging to both first and second set of sub-field code words.
    • 一种用于处理动态假轮廓效果补偿的视频图像的方法和装置。 根据图像的视频梯度,每个视频图像被分成至少第一类型和第二类型的区域。 特定的视频渐变范围与每种类型相关联。 第一和第二组子字段代码字分别分配给第一和第二类型。 第二组是第一组的子集。 第一和第二类型的像素分别用第一和第二组子字段代码字编码。 对于包括第一和第二类型的像素的至少一个水平线像素,第二类型的区域被扩展,直到第一类型区域中的下一个像素是由属于第一和第二类型的子字段代码字编码的像素 一组子字段代码字。
    • 65. 发明授权
    • Reduction of phosphor lag artifacts on display devices
    • 降低显示设备上的荧光滞后伪影
    • US08520151B2
    • 2013-08-27
    • US12798947
    • 2010-04-14
    • Carlos CorreaCedric Thebault
    • Carlos CorreaCedric Thebault
    • H04N5/16H04N9/12G09G3/30
    • G09G3/2003G09G2320/0242G09G2320/0257G09G2320/0261G09G2320/106
    • Luminous elements of the three colors red, green and blue of video display devices have a different response time. Therefore, a colored edge and trail appear at edges in direction of a moving object. In order to reduce the disturbing character of such colored edges and trails, a horizontal spatial equalization of the response time of luminous elements having a shorter response time by low-pass filtering a component signal of the video component signals for driving luminous elements having a shorter response time dependent on a horizontal speed of changes of the component signal is recommended to reduce phosphor lag artifacts on display devices. The arrangement for processing video component signals of different color comprises a compensation unit which according to a preferred embodiment is realized by a FIR filter and a horizontal speed correction unit supplied with a horizontal and vertical motion estimation signal.
    • 视频显示设备的红,绿,蓝三色发光元件具有不同的响应时间。 因此,在移动物体的方向上的边缘出现着色的边缘和轨迹。 为了减少这种彩色边缘和痕迹的干扰特性,通过对具有较短的发光元件的视频分量信号的分量信号进行低通滤波,对具有较短响应时间的发光元件响应时间的水平空间均衡 建议响应时间取决于分量信号变化的水平速度,以减少显示设备上的磷光体滞后伪影。 用于处理不同颜色的视频分量信号的装置包括一个补偿单元,该补偿单元根据优选实施例由FIR滤波器和被提供水平和垂直运动估计信号的水平速度校正单元来实现。
    • 67. 发明授权
    • Method and apparatus for power level control of a display device
    • 一种用于显示装置的功率电平控制的方法和装置
    • US08279214B2
    • 2012-10-02
    • US11595294
    • 2006-11-09
    • Carlos CorreaCédric ThebaultRainer Zwing
    • Carlos CorreaCédric ThebaultRainer Zwing
    • G09G5/00
    • G09G3/2944G09G2320/0626G09G2360/16
    • The invention concerns a video processing for improving the picture quality of picture which are displayed on display devices like plasma display panels and all kind of display devices based on the principle of duty cycle modulation of light emission and for reducing the average power dissipation. The basic idea behind the invention is to generate only the required amount of sustain pulses that effectively produce light and to avoid generating unnecessary sustain pulses. To this end, the video range of the input video is increased in order to be equal to a nominal range, 255 in the case of a 8-bit coding, and a power level mode with a reduced number of sustain pulses is selected to keep constant the brightness of the image. The number of sustain pulses that do not produce light is reduced.
    • 本发明涉及一种视频处理,用于根据发光的占空比调制原理和用于降低平均功耗的方式,提高在等离子体显示面板和各种显示装置等显示装置上显示的画面的画面质量。 本发明的基本思想是仅产生所需量的有效产生光的维持脉冲,并避免产生不必要的维持脉冲。 为此,输入视频的视频范围增加以便等于标称范围,在8位编码的情况下为255,并且选择具有减少的维持脉冲数的功率电平模式以保持 恒定图像的亮度。 不产生光的维持脉冲的数量减少。
    • 68. 发明授权
    • Method and apparatus for power level control in a display device
    • 显示装置中功率电平控制的方法和装置
    • US07986316B2
    • 2011-07-26
    • US11594290
    • 2006-11-08
    • Carlos CorreaCédric ThebaultRainer Zwing
    • Carlos CorreaCédric ThebaultRainer Zwing
    • G09G5/00
    • G09G3/2946G09G2320/0626G09G2360/16
    • The invention relates to a method for power level control of a display device and an apparatus for carrying out the method. Classically, a power level mode defining a subfield organization to be used for subfield coding is selected as a function of the average power level of the picture to be displayed for keeping constant the power consumption of the display device. According to the invention, it is proposed to select the power level mode as a function of the input frame frequency in such a way as to have as little as possible deviations from nominal peak white and full white values at the same time that an overloading of the panel power supply is prevented. More particularly, the number of sustain pulses within the video frame and selected by the power level mode is modified as a function of the input frame frequency.
    • 本发明涉及一种显示装置的功率电平控制方法及其实施方法。 通常,定义要用于子场编码的子场组织的功率电平模式被选择为要显示的图像的平均功率电平的函数,以保持显示装置的功耗恒定。 根据本发明,提出了将功率电平模式选择为输入帧频率的函数,使得与标称峰值白色和全白色值的偏差尽可能小,同时使得 防止面板电源。 更具体地,根据输入帧频率修改视频帧内的由功率电平模式选择的维持脉冲的数量。
    • 70. 发明授权
    • Method and apparatus for controlling a display device
    • 用于控制显示装置的方法和装置
    • US07773161B2
    • 2010-08-10
    • US10433169
    • 2001-11-19
    • Carlos CorreaSébastien WeitbruchDidier DoyenJonathan Kervec
    • Carlos CorreaSébastien WeitbruchDidier DoyenJonathan Kervec
    • G09G3/28H04N5/66
    • G09G3/2051G09G3/2029G09G3/204G09G3/2927G09G3/2937G09G2320/0247G09G2320/0261G09G2320/0266G09G2320/0276H04N5/21H04N5/70H04N9/30
    • The invention deals with the large area flicker effect reduction in display devices like plasma display panels, in which the light output is controlled by small pulses over a whole frame period and the amount of small pulses determine the brightness of the light output. The invention proposes an adaptation of the known principle of sub-field grouping for large area flicker reduction for the specific sub-field coding process called incremental sub-field coding, in which only those sub-field code words are taken for display driving having the characteristic that there is never a sub-field inactivated between two activated sub-fields or never a sub-field is activated between two inactivated sub-fields.For this specific sub-field coding it is proposed to make the sub-field grouping in a simple manner, where all the odd sub-fields are grouped together in one group (G1) and all the even sub-fields are grouped together in a second group (G2). Despite the fact that some luminance differences are present in the groups it has been proved, that this sub-field grouping leads to a very efficient large area flicker reduction because of its complementary behaviour to the required dithering technique.
    • 本发明涉及诸如等离子体显示面板的显示装置中的大面积闪烁效应的降低,其中光输出在整个帧周期内由小脉冲控制,并且小脉冲的量决定光输出的亮度。 本发明提出了对于称为增量子场编码的特定子场编码处理的用于大面积闪烁减少的子场分组的已知原理的适应,其中仅采用那些子字段代码字用于具有 在两个未激活的子字段之间激活两个激活的子字段之间永远不会被激活的子字段或从不会有一个子字段的特征。 对于这种特定的子场编码,提出以简单的方式进行子场分组,其中所有奇数子场被分组在一个组(G1)中,并且所有偶数子场被分组在一起 第二组(G2)。 尽管已经证明在组中存在一些亮度差异的事实,但是由于其对所需的抖动技术的补充行为,该子场分组导致非常有效的大面积闪烁降低。