公开(公告)号：EP1796065B1

公开(公告)日：2011-09-28

申请号：EP06125606.1

申请日：2006-12-07

申请人： Thomson Licensing

发明人： Thebault, Cédric ,  Correa, Carlos ,  Weitbruch, Sébastien

IPC分类号： G09G3/28

CPC分类号： G09G3/2803 ,  G09G3/2944 ,  G09G2320/0271 ,  G09G2320/0606 ,  G09G2320/0626 ,  G09G2320/066 ,  G09G2330/045 ,  G09G2360/16

摘要： A picture quality when reducing the brightness or the contrast of the picture on a plasma panel (1) shall be improved. For this purpose there is provided a driving apparatus including brightness/contrast control means (5) for receiving video input data for modifying the video levels of the video input data in accordance with external adjustment data and for outputting modified video data. First power measurement means (10) measure a power level of the modified video data and supply a first power level. Second power measurement means (11) measure a power level of the video input data and supply a second power level. Generator means (12) generate a third power level comprised between the first power level and the second power level or equal to the larger one to data processing means (6, 7, 8, 9). The data processing means (6, 7, 8, 9) calculate the maximum number of sustain pulses per frame applicable to the modified video data on the basis of the third power level and control the display of the modified video data on the plasma display panel (1).Thus, the number of gray levels can be increased and the picture quality improves significantly.

公开(公告)号：EP2006830A1

公开(公告)日：2008-12-24

申请号：EP08305259.7

申请日：2008-06-13

申请人： THOMSON Licensing

发明人： Thebault, Cedric ,  Correa, Carlos ,  Weitbruch, Sébastien

IPC分类号： G09G3/20

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

摘要： The invention relates to 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. It can be applied to every 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. According to the invention, for determining the state of a bit of the subfield code word, a first threshold and a second threshold is associated with said bit, said second threshold being greater than said 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. If the video level is lower than the first threshold, a state "OFF" is allocated to the bit. If the video level is greater than the second threshold, a state "ON" is allocated to the bit and if the video level is lying between the first and second thresholds, a state "ON" is allocated to the bit according to a predetermined criteria.

摘要翻译： 本发明涉及一种用于将图像的像素的视频电平编码为显示设备中的子域代码字的方法和设备。 它可以应用于每个使用PWM（脉宽调制）技术和显示视频图像子场的显示设备。 子字段代码字的比特从具有最高有效权重的比特一个接一个递归地计算到具有最低有效权重的比特。 根据本发明，为了确定子字段代码字的位的状态，第一阈值和第二阈值与所述位相关联，所述第二阈值大于所述第一阈值，并且由此编码的视频电平 比特及其在子字段码字中的后续比特与第一和第二阈值进行比较。 如果视频电平低于第一阈值，则向该位分配状态“OFF”。 如果视频电平大于第二阈值，则将状态“开启”分配给该位，并且如果视频电平位于第一和第二阈值之间，则根据预定标准将状态“开启”分配给该位 。

公开(公告)号：EP1615200A2

公开(公告)日：2006-01-11

申请号：EP05105568.9

申请日：2005-06-22

申请人： Thomson Licensing

发明人： Weitbruch, Sébastien ,  Thébault, Cédric ,  Schweer, Rainer

IPC分类号： G09G3/28

CPC分类号： G09G3/293 ,  G09G3/20 ,  G09G3/2022 ,  G09G5/18 ,  G09G2310/02 ,  G09G2330/06

摘要： The EMI spectrum of a display device is to comply with respective norms. Therefore, the clock for loading data into data drivers of a display panel is designed to be variable. Consequently, the electromagnetic radiation produced by the loading clock is broadened thereby reducing the peak amplitude. Thus, the limitations of radiation norms can be complied with.

摘要翻译： 的显示装置的EMI频谱是遵守respectivement准则。 因此，对于将数据加载到显示面板的数据驱动器的时钟被设计成是可变的。 因此，通过加载时钟所产生的电磁辐射变宽从而降低了峰值振幅。 因此，辐射规范的限制，可以得到遵守。

公开(公告)号：EP1361559A1

公开(公告)日：2003-11-12

申请号：EP03291000.2

申请日：2003-04-24

申请人： Thomson Licensing S.A.

发明人： Thebault, Cédric ,  Weitbruch, Sébastien ,  Hoelzemann, Herbert

IPC分类号： G09G3/28 ,  G09G5/02

CPC分类号： G09G3/2022 ,  G09G3/2003 ,  G09G3/204 ,  G09G3/22 ,  G09G3/28 ,  G09G2320/0242 ,  G09G2320/0257 ,  G09G2320/0261 ,  G09G2320/0266 ,  G09G2340/16

摘要： Since the phosphor lag effect results from the slowness of the green and red phosphors and since it is not possible to make these phosphors faster, the blue one has to be made slower in order to reduce the color trail effect. Therefore, a part of the blue component is artificially delayed. Only a certain percentage of the blue component of the actual frame is transmitted during the actual frame, whereas the rest of the blue component will be transmitted during the next frames. The dynamic false contour effect introduced by this video processing may be compensated by subfield shifting.

摘要翻译： 由于荧光体滞后效应是由绿色和红色荧光体的缓慢引起的，并且由于不可能使这些荧光体更快，所以为了减少色迹效应，必须使蓝色光更慢。 因此，蓝色部件的一部分被人为地延迟。 在实际帧中只发送实际帧的蓝色分量的一定百分比，而在下一帧期间将传输蓝色分量的其余部分。 通过该视频处理引入的动态假轮廓效果可以通过子场移位来补偿。

公开(公告)号：EP1361559B1

公开(公告)日：2015-07-29

申请号：EP03291000.2

申请日：2003-04-24

申请人： Thomson Licensing

发明人： Thebault, Cédric ,  Weitbruch, Sébastien ,  Hoelzemann, Herbert

IPC分类号： G09G3/28 ,  G09G5/02

CPC分类号： G09G3/2022 ,  G09G3/2003 ,  G09G3/204 ,  G09G3/22 ,  G09G3/28 ,  G09G2320/0242 ,  G09G2320/0257 ,  G09G2320/0261 ,  G09G2320/0266 ,  G09G2340/16

公开(公告)号：EP1936590A3

公开(公告)日：2012-04-11

申请号：EP07123403.3

申请日：2007-12-17

申请人： Thomson Licensing

发明人： Correa, Carlos ,  Weitbruch, Sébastien ,  Abdallah, Mohamed

IPC分类号： G09G3/28 ,  G09G3/20

CPC分类号： G09G3/2022 ,  G09G3/2029 ,  G09G3/28 ,  G09G5/026 ,  G09G2320/0261 ,  G09G2320/0266 ,  G09G2320/0271 ,  G09G2360/16

摘要： The present invention relates to a method and an apparatus for processing video pictures for dynamic false contour effect compensation. It comprises the steps of:
- dividing each of the video pictures into at least a first type of area and a second type of area according to the video gradient of the picture, a specific video gradient range being associated to each type of area,
- allocating a first set of sub-field code words to the first type of area and a second set of sub-field code words to the second type of area, the second set being a subset of the first set,
- encoding the pixels of the first type of area with the first set of sub-field code words and encoding the pixels of the second type of area with the second set of sub-field code words,

wherein, for at least one horizontal line of pixels comprising pixels of first type area and pixels of second type area, 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.

公开(公告)号：EP1821277A3

公开(公告)日：2010-02-17

申请号：EP07102607.4

申请日：2007-02-19

申请人： Thomson Licensing

发明人： Thebault, Cédric ,  Correa, Carlos ,  Weitbruch, Sébastien

IPC分类号： G09G3/28

CPC分类号： G09G3/2944 ,  G09G3/2803 ,  G09G2320/0271 ,  G09G2320/0606 ,  G09G2320/0626 ,  G09G2320/066 ,  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 (2) of the data processing of the plasma display device and by compensating it in the back-end (3). Specifically, the gain and/or offset of the video input data are adjusted (5) and the power level of the adjusted video data is measured (10). The resulting power level information is updated (13) on the basis of an attenuation information (12). The updated power level is used for the power management (9) and the level of the video data being reduced (5) in the front-end (2) is increased (14) 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：EP2009588A1

公开(公告)日：2008-12-31

申请号：EP08305268.8

申请日：2008-06-16

申请人： Thomson Licensing

发明人： Weitbruch, Sébastien ,  Zwing, Rainer ,  Thebault, Cedric

IPC分类号： G06Q30/00

CPC分类号： G06Q30/02

摘要： A subject of the invention is to ensure that a remote display device is only useable for a specific application like advertising or public information.
According to the invention, this object is solved by a method for distributing display information to a remote display device, comprising the steps of:
- providing (100) the remote display device with a signal comprising an activation key and the display information,
- providing (200) the control unit of the remote display device with a locking function using a control key, and
- comparing (300) the activation key to the control key and authorizing (400) the displaying of the display information by deactivating the locking function if the activation key is fitting with the control key.

摘要翻译： 本发明的一个主题是，以确保没有一个远程显示设备仅适用于像广告或公共信息的特定应用可用。 。根据本发明，则thisObject通过一种用于分发显示信息发送到远程显示装置，包括以下步骤解决： - 提供（100）与包含激活密钥和显示信息，的信号的远程显示设备 - 提供 （200）与使用控制键的锁定功能的远程显示装置的控制单元，以及 - 比较（300）通过停用的锁定功能，如果激活密钥到控制密钥和授权（400）的显示信息的显示 激活密钥与控制密钥嵌合。

公开(公告)号：EP1936590A2

公开(公告)日：2008-06-25

申请号：EP07123403.3

申请日：2007-12-17

申请人： Thomson Licensing

发明人： Correa, Carlos ,  Weitbruch, Sébastien ,  Abdallah, Mohamed

IPC分类号： G09G3/28 ,  G09G3/20

CPC分类号： G09G3/2022 ,  G09G3/2029 ,  G09G3/28 ,  G09G5/026 ,  G09G2320/0261 ,  G09G2320/0266 ,  G09G2320/0271 ,  G09G2360/16

摘要： The present invention relates to a method and an apparatus for processing video pictures for dynamic false contour effect compensation. It comprises the steps of:
- dividing each of the video pictures into at least a first type of area and a second type of area according to the video gradient of the picture, a specific video gradient range being associated to each type of area,
- allocating a first set of sub-field code words to the first type of area and a second set of sub-field code words to the second type of area, the second set being a subset of the first set,
- encoding the pixels of the first type of area with the first set of sub-field code words and encoding the pixels of the second type of area with the second set of sub-field code words,

wherein, for at least one horizontal line of pixels comprising pixels of first type area and pixels of second type area, 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.

摘要翻译： 本发明涉及用于处理用于动态假轮廓效果补偿的视频图片的方法和设备。 它包括以下步骤：根据图片的视频梯度将每个视频图片分成至少第一类型的区域和第二类型的区域，特定的视频梯度范围与每种类型的区域相关联; 将第一组子域代码字分配给第一类型的区域，将第二组子域代码字分配给第二类型的区域，第二组是第一组的子集， - 对第 第一类型的区域与第一组子域码字相关联，并用第二组子域码字对第二类型的区域的像素进行编码，其中，对于包括第一类型的像素的至少一个水平线像素 区域和第二类型区域的像素，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子字段码字集合的子字段码字编码的像素。

公开(公告)号：EP1821278A1

公开(公告)日：2007-08-22

申请号：EP07102610.8

申请日：2007-02-19

申请人： Thomson Licensing

发明人： Weitbruch, Sébastien ,  Thebault, Cédric ,  Correa, Carlos

IPC分类号： G09G3/28

CPC分类号： G09G3/2037 ,  G09G3/28 ,  G09G2320/0271 ,  G09G2330/045

摘要： Overheating in the drivers of a plasma display should be avoided. This object is solved by a method for driving a plasma display panel including the steps of serially receiving display data in form of a sequence of sub-field data bits and parallely forwarding the display data in the form of data blocks each consisting of a predefined number of sub-field data bits, as well as counting sub-field data bits the value of which differs from that of a neighbouring or preceding sub-field data bit and providing a respective counting signal for driving the plasma display panel. The resulting counting value is indicative of heat contributions of sub-field data bits and can be used for controlling the plasma display panel.

摘要翻译： 应避免等离子显示器的驱动器过热。 该目的通过用于驱动等离子体显示面板的方法来解决，该方法包括以一系列子场数据位的形式串行接收显示数据并且以数据块的形式并行地转发显示数据的步骤，每个数据块包括预定义数量 的子场数据位以及计数其值与相邻或先前子场数据位的值不同的子场数据位并提供用于驱动等离子体显示面板的相应计数信号。 得到的计数值表示子场数据位的热量贡献，并可用于控制等离子显示面板。