公开(公告)号：US20060125718A1

公开(公告)日：2006-06-15

申请号：US10525182

申请日：2003-08-05

申请人： Sebastien Weitbruch ,  Rainer Zwing ,  Carlos Correa

发明人： Sebastien Weitbruch ,  Rainer Zwing ,  Carlos Correa

IPC分类号： G09G3/28

CPC分类号： G09G3/2051 ,  G09G3/2022 ,  G09G3/288 ,  G09G2320/0276

摘要： A plasma display panel is a pure linear display and does not provide a non-linear gamma behaviour like a CRT so that an artificial gamma function has to be applied to the signal in digital form. This gamma function increases the quantization steps in the dark areas whereas the quantization steps will be reduced in the luminous areas. The basic idea is to apply an adaptive noise filtering after the gammatization process. The adaptive filtering is a specific filtering which is adapted to the gammatization quantization noise. In other words, the filtering will be maximum for dark areas and its efficacy will be automatically decreased when the luminance of the area is increasing.

摘要翻译： 等离子体显示面板是纯线性显示器，并且不提供诸如CRT的非线性伽马行为，使得必须以数字形式将人造伽马功能应用于信号。 该伽马函数增加了暗区域中的量化步长，而在发光区域中的量化步长将会降低。 基本思想是在恶意化过程之后应用自适应噪声滤波。 自适应滤波是适应于伽玛化量化噪声的特定滤波。 换句话说，对于暗区域，滤波将是最大的，并且当区域的亮度增加时，其功效将自动降低。

公开(公告)号：US20060066517A1

公开(公告)日：2006-03-30

申请号：US11224547

申请日：2005-09-12

申请人： Sebastien Weitbruch ,  Carlos Correa ,  Cedric Thebault

发明人： Sebastien Weitbruch ,  Carlos Correa ,  Cedric Thebault

IPC分类号： G09G3/28

CPC分类号： G09G3/2092 ,  G09G3/2007 ,  G09G3/2022 ,  G09G3/28 ,  G09G2320/0626 ,  G09G2360/16

摘要： The present invention relates to a method and an apparatus for generating subfield codes for pictures displayed on a display device like plasma display panels (PDPs) or display devices wherein the grey level of the pixels of the pictures displayed by the display device is obtained by modulating the number of light pulses per frame or sustain pulses (PWM for Pulse Width Modulation), the number of sustain pulses per subfield of the frame depending on the power average level of the picture to be displayed. The video levels of the pictures are first transcoded into luminance codes and then coded into subfield codes. In order to reduce the memory size required for implementing this transcoding, offset values between luminance codes are stored in a look-up table instead of storing the luminance codes. The luminance codes are then regenerated in the controller of the display device.

摘要翻译： 本发明涉及一种用于生成显示在诸如等离子体显示面板（PDP）或显示装置的显示装置上的图像的子场编码的方法和装置，其中由显示装置显示的图像的像素的灰度级通过调制 每帧的光脉冲的数量或维持脉冲的数量（用于脉冲宽度调制的PWM），根据要显示的图像的功率平均水平，帧的每个子场的维持脉冲数。 图像的视频电平首先被转码成亮度代码，然后被编码成子字段代码。 为了减少实现该代码转换所需的存储器大小，亮度代码之间的偏移值被存储在查找表中，而不是存储亮度代码。 然后在显示装置的控制器中重新生成亮度代码。

公开(公告)号：US20060017746A1

公开(公告)日：2006-01-26

申请号：US11186471

申请日：2005-07-21

申请人： Sebastien Weithbruch ,  Cedric Thebault ,  Carlos Correa

发明人： Sebastien Weithbruch ,  Cedric Thebault ,  Carlos Correa

IPC分类号： G09G5/00

CPC分类号： G09G3/2066

摘要： For improving the grey scale portrayal, several dithering methods are used: Cell-based dithering, multi-mask dithering or error diffusion. Each of them has specific disadvantages. A simple combination of them does not bring expected advantages. However, an improvement is obtained if the result of the multi-mask dithering is used for controlling the error diffusion by a switch, for example.

摘要翻译： 为了改善灰度图形，使用了几种抖动方法：基于单元的抖动，多掩码抖动或误差扩散。 他们每个都有特定的缺点。 它们的简单组合不会带来预期的优势。 然而，例如，如果将多掩模抖动的结果用于通过开关来控制误差扩散，则获得了改进。

公开(公告)号：US20050225503A1

公开(公告)日：2005-10-13

申请号：US11098090

申请日：2005-04-04

申请人： Sebastien Weitbruch ,  Cedric Thebault ,  Carlos Correa

发明人： Sebastien Weitbruch ,  Cedric Thebault ,  Carlos Correa

IPC分类号： G09G3/20 ,  G09F9/313 ,  G09G3/28 ,  H01J17/49

CPC分类号： G09G3/2022 ,  G09G3/2092 ,  G09G3/288 ,  G09G3/2946 ,  G09G2300/0408 ,  G09G2320/0285

摘要： A universal Power Timing Controller (PTC) unit intended for controlling the image memory and the line power boards of a Plasma Display Panel (PDP) is discribed. The PTC is responsible for generating control signals for the power boards of the PDP in order that they produce the correct waveforms (e.g. priming, erasing, addressing, sustaining . . . ) to be applied on the lines of cells of the PDP and control signals for the image memory of the PDP. According to the invention, the PTC has a fully programmable structure. The PTC comprises programmable memories or LUTs (look-up tables) in which the data defining the display mode of the panel and data defining elementary control signals required by the line power boards for processing operations associated to each phase period of the frame are stored.

摘要翻译： 描述了用于控制等离子体显示面板（PDP）的图像存储器和线路电源板的通用功率定时控制器（PTC）单元。 PTC负责为PDP的电源板产生控制信号，以便它们产生正确的波形（例如启动，擦除，寻址，维持...）以应用于PDP的单元线路和控制信号 用于PDP的图像存储器。 根据本发明，PTC具有完全可编程的结构。 PTC包括可编程存储器或LUT（查找表），其中存储定义面板的显示模式的数据和定义线路电源板所需的用于处理与帧的每个相位周期相关联的操作的基本控制信号的数据。

公开(公告)号：US06753832B2

公开(公告)日：2004-06-22

申请号：US09894314

申请日：2001-06-28

申请人： Sebastien Weitbruch ,  Carlos Correa ,  Rainer Zwing

发明人： Sebastien Weitbruch ,  Carlos Correa ,  Rainer Zwing

IPC分类号： G09G328

CPC分类号： G09G3/2007 ,  G09G3/2803 ,  G09G3/297 ,  G09G2310/0216 ,  G09G2310/0218 ,  G09G2310/0221

摘要： An improved addressing scheme for plasma display panel control comprises partitioning the panel into a number of sections and splitting the addressing period into correspondingly small addressing periods for each section. By varying the time distance between successive addressing periods of the sections from one sub-field to the other, at least for the sub-fields with higher weights, a better spread of the energy input and output of the plasma display panel is achieved and the power supply circuit for the display panel may be constructed with less expensive components.

摘要翻译： 用于等离子体显示面板控制的改进的寻址方案包括将面板划分成多个部分，并将寻址周期分成相应的每个部分的小寻址周期。 通过将部分的连续寻址周期之间的时间距离从一个子场改变到另一个，至少对于具有较高权重的子场，可以实现等离子体显示面板的能量输入和输出的更好的扩展，并且 用于显示面板的电源电路可以由较便宜的部件构成。

公开(公告)号：US5517247A

公开(公告)日：1996-05-14

申请号：US132148

申请日：1993-10-05

申请人： Carlos Correa ,  John Stolte

发明人： Carlos Correa ,  John Stolte

IPC分类号： H04N7/01 ,  H04N5/44

CPC分类号： H04N7/012 ,  H04N7/0132

摘要： Video signals of interlaced form are first converted to progressive scan (non-interlaced) form and then picture elements are generated that lie between the "progressive" picture elements and are interpolated by a vertical one-half (1/2) line shuffling by application of a vertical averaging. The interpolated picture elements are buffer stored and are read out again at twice the frame repetition rate whereby each second line of the stored interpolated picture elements is emitted delayed in time by 10 milli-seconds. Fields in the format 100 Hz, 2:1 interlace thereby ensue. Advantageously, interpolated picture elements are used in all of the output fields thereby avoiding picture disturbences at the frame rate (25 Hz) of the original video signal. For increasing the subjective vertical sharpness, a vertical peaking may additionally be carried out.

摘要翻译： 隔行扫描形式的视频信号首先转换为逐行扫描（非隔行扫描）形式，然后生成位于“渐进”像素之间的图像元素，并通过应用程序的垂直二分之一（1/2）线进行内插 的垂直平均。 内插图像元素被缓冲存储，并且以帧重复率的两倍再次读出，由此存储的内插图像元素的每个第二行在时间上延迟10毫秒。 格式为100 Hz，2：1交错的字段随之而来。 有利地，在所有输出场中使用内插图像元素，从而避免原始视频信号的帧速率（25Hz）下的图像干扰。 为了增加主观垂直锐度，可以另外执行垂直峰值。

公开(公告)号：US08576216B2

公开(公告)日：2013-11-05

申请号：US12818251

申请日：2010-06-18

申请人： Carlos Correa ,  Cédric Thébault

发明人： Carlos Correa ,  Cédric Thébault

IPC分类号： G06F3/038 ,  G09G5/00 ,  G09G3/28

CPC分类号： G09G3/293 ,  G09G2310/02 ,  G09G2310/0213 ,  G09G2330/021

摘要： Method and apparatus for reducing driver energy consumption of drivers of a display device each supplied by an input codeword as e.g. for data drivers of a plasma display panel supplied by sequences of subfield data bits in form of a codeword comprising a predetermined number of bits are recommended, wherein the apparatus comprises a driver transition energy limitation circuit for toggling bits of the input codeword applied to the driver transition energy limitation circuit and providing a codeword reducing the driver energy consumption. A toggle map, which is generated from a combination of a transition map determining a bit in the input codeword if toggled reduces energy consumption and a flag map determining a number of least significant bits exceeding a cell energy limit value, is applied to an input codeword for the driver to toggle bits of said input codeword for reducing driver energy consumption without a perceivable image quality degradation. Method and apparatus are advantageously applicable for driver overheat protection and eco mode to reduce driver energy consumption without a perceivable image quality degradation.

摘要翻译： 用于降低由输入码字提供的显示装置的驱动器的驱动器能量消耗的方法和装置，例如， 对于由包括预定位数的码字形式的子场数据位序列提供的等离子体显示面板的数据驱动器是推荐的，其中该装置包括用于切换应用于该驱动器的输入码字的位的驱动器转移能量限制电路 过渡能量限制电路，并提供减少驾驶员能量消耗的码字。 从确定输入码字中的比特的转换图的组合如果切换生成的切换图则减少能量消耗，并且将确定超过小区能量限制值的最低有效比特数的标志图应用于输入码字 用于驱动器切换所述输入码字的位以减少驾驶员的能量消耗，而不会有可察觉的图像质量下降。 方法和装置有利地适用于驾驶员过热保护和环保模式以降低驾驶员的能量消耗，而不会有可察觉的图像质量下降。

公开(公告)号：US08502892B2

公开(公告)日：2013-08-06

申请号：US12452556

申请日：2008-06-16

申请人： Cedric Thebault ,  Sebastien Weitbruch ,  Carlos Correa

发明人： Cedric Thebault ,  Sebastien Weitbruch ,  Carlos Correa

IPC分类号： H04N9/64

CPC分类号： H04N5/3675 ,  H04N5/374 ,  H04N9/045 ,  H04N9/09 ,  H04N2209/049

摘要： A device for correcting a defect pixel value of a CMOS image sensor unit is proposed, the image sensor unit comprising at least a first and a second pixel array. The image sensor unit is arranged to project the same image onto each pixel array. The correcting device comprises at least a first and a second input channel for receiving pixel values of the first and the second pixel array, respectively. The processing device is operable to replace the defect pixel value by a corrected pixel value, which is determined from values of neighboring pixels to the defect pixel of the same pixel array. The corrected pixel value is evaluated with respect to values of a corresponding pixel and its neighboring pixels of the second pixel array at the same location as the defect pixel of the first pixel array in respect to the projected image.

摘要翻译： 提出了一种用于校正CMOS图像传感器单元的缺陷像素值的装置，所述图像传感器单元至少包括第一和第二像素阵列。 图像传感器单元布置成将相同的图像投影到每个像素阵列上。 校正装置包括至少第一和第二输入通道，用于分别接收第一和第二像素阵列的像素值。 处理装置可操作以将缺陷像素值替换为从相邻像素的值到相同像素阵列的缺陷像素确定的校正像素值。 相对于与第一像素阵列的相对于投影图像的缺陷像素相同的位置处的第二像素阵列的相应像素及其相邻像素的值来评估校正像素值。

公开(公告)号：US08502750B2

公开(公告)日：2013-08-06

申请号：US11707417

申请日：2008-02-16

申请人： Cédric Thebault ,  Carlos Correa ,  Sébastien Weitbruch

发明人： Cédric Thebault ,  Carlos Correa ,  Sébastien Weitbruch

IPC分类号： G09G3/28

CPC分类号： G09G3/2944 ,  G09G3/2803 ,  G09G2320/0271 ,  G09G2330/045 ,  G09G2360/16

摘要： The picture quality on a plasma display panel shall be improved when the contrast and/or the brightness are reduced. This is achieved by estimating the reduction of the dynamic occurring in the front-end of the data processing of the plasma display device and by compensating it in the back-end. Specifically, the gain and/or offset of the video input data are adjusted and the power level of the adjusted video data is measured. The resulting power level information is updated on the basis of an attenuation information. The updated power level is used for the power management and the level of the video data being reduced in the front-end is increased on the basis of the attenuation information. Thus, the dynamic of the video and, as a result, the picture quality are improved.

公开(公告)号：US08212844B2

公开(公告)日：2012-07-03

申请号：US12156493

申请日：2008-06-02

申请人： Cedric Thebault ,  Carlos Correa ,  Sebastien Weitbruch

发明人： Cedric Thebault ,  Carlos Correa ,  Sebastien Weitbruch

IPC分类号： G09G5/02 ,  G09G5/10 ,  H04N7/24

CPC分类号： G09G3/20 ,  G09G3/2029 ,  G09G3/2051 ,  G09G2320/0233 ,  G09G2320/0266

摘要： A method and a device for encoding the video level of a pixel of a picture into a subfield code word in a display device using a PWM (Pulse Width Modulation) technology and subfields for displaying video picture. The bits of the subfield code word are computed recursively one after the other from the bit having the most significant weight to the bit having the least significant weight. In determining the state of a bit of the subfield code word, a first threshold and a second threshold is associated with the bit, the second threshold being greater than the first threshold, and the video level to be encoded by this bit and its following bits in the subfield code word are compared to the first and second thresholds. A state is allocated to the bit based on the comparison.

摘要翻译： 一种用于使用PWM（脉宽调制）技术和用于显示视频图像的子场，将图像的像素的视频电平编码为显示装置中的子字段码字的方法和装置。 从具有最高有效权重的位到具有最小有效权重的位，递归地计算子字段代码字的位。 在确定子字段代码字的位的状态时，第一阈值和第二阈值与该位相关联，第二阈值大于第一阈值，并且要由该位及其后续位进行编码的视频电平 将子字段代码字与第一和第二阈值进行比较。 基于比较将状态分配给该位。