专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5790095A Error variance processing equipment for display device 失效
标题翻译：显示设备误差变化处理设备
公开(公告)号：US5790095A
公开(公告)日：1998-08-04
申请号：US539238
申请日：1995-10-04
申请人： Junichi Onodera , Masamichi Nakajima , Asao Kosakai , Masayuki Kobayashi , Hayato Denda , Seiji Matsunaga
发明人： Junichi Onodera , Masamichi Nakajima , Asao Kosakai , Masayuki Kobayashi , Hayato Denda , Seiji Matsunaga
IPC分类号： G09G3/20 , G09G3/28 , G09G5/10
CPC分类号： G09G3/2059 , G09G3/2022 , G09G2320/0266 , G09G3/2077 , G09G3/2803
摘要： Coupled to an error variance circuit 11 is an emission luminance characteristic acquisition circuit 20 that counts up, at a display number counter 21, the display number in the single or plural frames of the respective bits of image data by the counters, M in number, corresponding to said bits, then solves for display area percentage (Sk) dividing, at a display area percentage operation part 22, the display dot number as counted at a display number counter 21, by total dot number, and acquires the luminance deviation characteristic for each bit by means of an emission luminance deviation characteristic measuring part 24. The luminance deviation thus obtained is renewed for each frame and transferred to the error variance circuit 11, and processed for error variance on the basis of the emission luminance characteristic to be output at PDP. At low level, on the other hand, the luminance deviation is rendered either fixed type luminance deviation or emission luminance level more or less higher than the actual one to reduce the diffusion noise particularly at the low level image portion thereby obtaining a more natural image.
摘要翻译：耦合到误差方差电路11的是发光亮度特性获取电路20，其在显示数计数器21上通过计数器M对数字的各个图像数据的各个位的单个或多个帧中的显示数进行计数，对应于所述比特，然后在显示区域百分比操作部分22处解码显示区域百分比（Sk），显示区域百分比（Sk）除以总点数在显示计数器21上计数的显示点数，并获取用于通过发光亮度偏差特性测量部件24对每个位进行比较。由此获得的亮度偏差被更新为每帧，并被传送到误差方差电路11，并且基于要发射的发光亮度特性进行误差处理 PDP。另一方面，在低电平时，亮度偏差比实际的亮度偏差或发光亮度等级或多或少地降低，特别是在低电平图像部分降低扩散噪声，从而获得更自然的图像。

2. 发明授权

US06344839B1 Drive method and drive circuit of display device 失效
标题翻译：显示装置的驱动方式和驱动电路
公开(公告)号：US06344839B1
公开(公告)日：2002-02-05
申请号：US08930866
申请日：1997-10-06
申请人： Hayato Denda , Masamichi Nakajima , Asao Kosakai , Junichi Onodera , Masayuki Kobayashi , Seiji Matsunaga
发明人： Hayato Denda , Masamichi Nakajima , Asao Kosakai , Junichi Onodera , Masayuki Kobayashi , Seiji Matsunaga
IPC分类号： G09G336
CPC分类号： G09G3/2037 , G09G3/2803 , G09G2320/0266
摘要： In a subfield drive method, two subframes of the least brightness are arranged adjacently to each other to select and light up the display device in terms of the change in image brightness in the time axial direction. When, for example, the level of original signal changes from 7 to 8 or from 8 to 7, SF3, SF2, SF1 and SF1 are selected as subframes for level 8, and SF3, F2 and SF1 are selected as subframes for level 7. This prohibiting any continuous lighting or non-lighting at the levels 7 and 8, there is no substantial change in brightness nor degradation of picture quality at that time. Any distortion of moving image (pseudo contour) is removed by the correction circuit 20 having the frame memory 24 that delays by one frame, the correction constant set circuit 26 that outputs correction data, and the adder 28 that adds the correction data to the original image signal.
摘要翻译：在子场驱动方法中，以相对于彼此相邻的两个子帧相对配置，以在时间轴方向上的图像亮度的变化来选择和点亮显示装置。当例如原始信号的电平从7变为8或从8变化到7时，选择SF3，SF2，SF1和SF1作为电平8的子帧，并且选择SF3，F2和SF1作为级别7的子帧。这阻止了7级和8级的任何连续照明或不照明，此时亮度也没有明显变化，图像质量也不降低。通过具有延迟一帧的帧存储器24的校正电路20，输出校正数据的校正常数设定电路26和将校正数据与原始数据相加的加法器28去除运动图像（伪轮廓）的任何失真图像信号。

3. 发明授权

US6061040A Drive circuit for display device 失效
标题翻译：显示器驱动电路
公开(公告)号：US6061040A
公开(公告)日：2000-05-09
申请号：US683273
申请日：1996-07-18
申请人： Junichi Onodera , Masamichi Nakajima , Asao Kosakai , Masayuki Kobayashi , Hayato Denda , Seiji Matsunaga , Toru Aida
发明人： Junichi Onodera , Masamichi Nakajima , Asao Kosakai , Masayuki Kobayashi , Hayato Denda , Seiji Matsunaga , Toru Aida
IPC分类号： G09G5/10 , G09G3/20 , G09G3/288 , G09G3/294 , G09G3/296 , G09G3/298 , G09G3/22
CPC分类号： G09G3/288 , G09G3/2022 , G09G3/2059 , G09G3/294 , G09G3/2944 , G09G3/2946 , G09G3/296 , G09G3/298 , G09G2320/0233 , G09G2320/0266 , G09G2320/0626 , G09G2360/16
摘要： In a display device in which each group of plural drive elements takes charge of the drive of plural picture elements (pixels) and the display luminance changes as the number of sustaining pulses changes that are supplied to a plasma display panel, a constant emission luminance characteristic is maintained by increasing the number of sustaining pulses for a larger load when the display load factor is large, and decreasing the number of sustaining pulses for a smaller load when the display load factor is small. When displaying a multi-tone image by a subfield drive method, a display area detect circuit allows the display of an image with constant luminance characteristic despite the variation of the display load factor, and prevents the deterioration of tone characteristic due to the subfield drive method, and further, a half tone display circuit allows the decrease of the bit number thereby simplifying the configuration of the display area detect circuit.
摘要翻译：在各组多个驱动元件负责多个像素的驱动的显示装置中，随着提供给等离子体显示面板的维持脉冲数的变化，显示亮度发生变化，具有恒定的发光亮度特性通过在显示负载因子大时增加用于较大负载的维持脉冲数量来维持，并且当显示负载因子小时，减小负载较小的维持脉冲数量来维持。当通过子场驱动方法显示多色调图像时，尽管显示负载因子的变化，显示区域检测电路允许显示具有恒定亮度特性的图像，并且防止由于子场驱动方法引起的色调特性的劣化此外，半色调显示电路允许减少比特数，从而简化显示区域检测电路的配置。

4. 发明授权

US6069610A Drive for a display device 失效
标题翻译：驱动显示设备
公开(公告)号：US6069610A
公开(公告)日：2000-05-30
申请号：US557248
申请日：1995-11-14
申请人： Hayato Denda , Masamichi Nakajima , Asao Kosakai , Junichi Onodera , Masayuki Kobayashi , Seiji Matsunaga
发明人： Hayato Denda , Masamichi Nakajima , Asao Kosakai , Junichi Onodera , Masayuki Kobayashi , Seiji Matsunaga
IPC分类号： G02F1/133 , G09G3/20 , G09G3/28 , G09G3/288 , G09G3/36 , G09G5/10
CPC分类号： G09G3/2059 , G09G3/2803
摘要： In an error diffusion processing unit to get a false half tone diffusing in the surroundings the luminance error between the original picture element signal quantizedly input and the preceding data, one dot of said signal is converted into plural picture elements. The respective picture elements (pixels) thus converted are compared with the prior data to detect the luminance error, which will then be weighted by multiplying it with certain coefficient to give, for instance, the reproduced error in one line past, that in one dot past and further the reproduced error a in one-line and one-dot past, which will respectively be added to the original pixels. Producing a false tone by error variance in unit of pixel enables to display the half tone without expanding the half tone display area beyond required dot number.
摘要翻译：在误差扩散处理单元中，为了得到在周围散布的假半色调，原始图像信号量化输入和前一数据之间的亮度误差，所述信号的一个点被转换为多个图像元素。将如此转换的各个像素（像素）与先前数据进行比较以检测亮度误差，然后通过将其与特定系数相乘来加权，以给出例如在一行中的再现误差，在一个点过去和进一步的再现错误a在一行和一点过去，将分别添加到原始像素。通过像素单位的误差产生虚假色调能够显示半色调，而不会使半色调显示区域超出所需的点数。

5. 发明授权

US5760756A Error variance circuit 失效
标题翻译：误差方差电路
公开(公告)号：US5760756A
公开(公告)日：1998-06-02
申请号：US558513
申请日：1995-11-16
申请人： Masayuki Kobayashi , Masamichi Nakajima , Asao Kosakai , Junichi Onodera , Hayato Denda
发明人： Masayuki Kobayashi , Masamichi Nakajima , Asao Kosakai , Junichi Onodera , Hayato Denda
IPC分类号： G02F1/133 , G09G3/20 , G09G3/28 , G09G3/36
CPC分类号： G09G3/2059 , G09G2320/0247 , G09G3/2803
摘要： An error variance circuit, wherein a reproduced error, as detected at an error detection circuit, is added to the image signal of the input signal picture element of n bits, and wherein a variance output signal is converted into a signal of m (.ltoreq.n-l) bits and outputted to a display panel, includes a clear circuit that clears error at each frame and forcibly reduces the prior error to zero thus preventing excessive noise from preceding frames and non-image duration causing flickering of picture.
摘要翻译：一种误差方差电路，其中在误差检测电路处检测到的再现误差被加到n位的输入信号像素的图像信号中，并且其中方差输出信号被转换成m（< = nl）位并输出到显示面板，包括清除每个帧的误差的清除电路，并将先前的误差强制地减小到零，从而防止来自前一帧的过多噪声和导致图像闪烁的非图像持续时间。

6. 发明授权

US06348930B1 Motion vector processing circuit 失效
标题翻译：运动矢量处理电路
公开(公告)号：US06348930B1
公开(公告)日：2002-02-19
申请号：US09402561
申请日：1999-10-05
申请人： Masayuki Kobayashi , Masamichi Nakajima , Hayato Denda
发明人： Masayuki Kobayashi , Masamichi Nakajima , Hayato Denda
IPC分类号： G09G534
CPC分类号： H04N5/145 , H04N5/70
摘要： A motion vector difference detection stage 10 detects a difference D1 in motion vector between a current frame and a succeeding frame and a difference D2 in motion vector between a preceding frame and current frame. A latched circuit 50 outputs the motion vector S1 of the inputted current frame as a motion vector S2 in the case where both of the absolute values of the differences D1 and D2 does not exceed a preset value L1, and outputs the motion vector S1 of the frame preceding the corresponding frame as a motion vector S2 in the case where at least one of the absolute values of the differences D1 and D2 exceeds the preset value L1. The latched circuit 50 outputs a motion vector of 0 as a motion vector S2 in the case where both of the absolute values of the differences D1 and D2 exceed the preset value L1 and also the absolute value of the sum of the differences D1 and D2 exceeds the preset value L1. When a change in motion vector is small, the motion vector of the corresponding frame carries out dynamic image correction. When a change in motion vector is large, the small motion vector of the preceding frame or the motion vector of 0 carries out dynamic image correction.
摘要翻译：运动矢量差检测级10检测当前帧与后一帧之间的运动矢量的差值D1和前一帧和当前帧之间的运动矢量中的差值D2。锁存电路50在差分D1和D2的绝对值都不超过预设值L1的情况下，将输入的当前帧的运动矢量S1作为运动矢量S2输出，并输出运动矢量S1 在差分D1和D2的绝对值中的至少一个超过预设值L1的情况下，作为运动矢量S2在相应帧之前的帧。在差分D1和D2的绝对值都超过预设值L1的情况下，锁存电路50输出0的运动矢量作为运动矢量S2，差分D1和D2的和的绝对值也超过预设值L1。当运动矢量的变化小时，相应帧的运动矢量进行动态图像校正。当运动矢量的变化大时，前一帧的小运动矢量或0的运动矢量执行动态图像校正。

7. 发明授权

US06456337B1 Moving image correcting circuit for display device 有权
标题翻译：显示设备运动图像校正电路
公开(公告)号：US06456337B1
公开(公告)日：2002-09-24
申请号：US09380357
申请日：1999-08-27
申请人： Masayuki Kobayashi , Masamichi Nakajima , Hayato Denda
发明人： Masayuki Kobayashi , Masamichi Nakajima , Hayato Denda
IPC分类号： H04N514
CPC分类号： G09G3/2022 , G09G3/2803 , G09G2320/0261 , G09G2320/0266 , G09G2320/106
摘要： In a moving image correcting circuit for a display unit wherein a motion vector detecting portion detects inter-frame motion vectors and a moving image correcting position corrects the display positions of subfields for pixels in blocks, based on the detection values, the picture quality is protected from being degraded by preventing the output of an erroneous motion vector due to noise in, or fluctuation of, the input image signal or else preventing the erroneous motion vector, even if output from the motion vector detecting portion, from entering the moving image correcting portion.
摘要翻译：在运动图像校正电路中，其中运动矢量检测部分检测帧间运动矢量，并且运动图像校正位置根据检测值校正块中像素的子场的显示位置，保护图像质量通过防止由于输入图像信号的噪声或波动导致的错误运动矢量的输出而劣化，或者即使从运动矢量检测部分输出，也可以防止误差运动矢量进入运动图像校正部分。

8. 发明授权

US06335735B1 Dynamic image correction method and dynamic image correction circuit for display device 有权
标题翻译：动态图像校正方法和显示装置的动态图像校正电路
公开(公告)号：US06335735B1
公开(公告)日：2002-01-01
申请号：US09402562
申请日：1999-10-05
申请人： Hayato Denda , Masamichi Nakajima , Masayuki Kobayashi
发明人： Hayato Denda , Masamichi Nakajima , Masayuki Kobayashi
IPC分类号： G09G510
CPC分类号： G09G3/2022 , G09G3/2803 , G09G2320/0261 , G09G2320/0266 , G09G2320/106
摘要： A display device which displays a multilevel gradation image by dividing a frame into a plurality of subfields in respect of time and by allowing the subfields corresponding to the luminance levels of the input image signals to emit light, comprising a motion vector detection unit 10 which detects the motion vector which expresses the motion of a block from one frame to the next, a high speed dynamic image correction unit 14 and a law speed dynamic image correction unit 16 which correct the input image signal by dynamic image correcting means which are suitable for the respective cases when the value of the detected motion vector is larger than a preset value S and when it is smaller than the preset value S and output the corrected input image signal, and a switching unit 18 which elects either the output signal of the high speed dynamic image correction unit 14 or the output signal of the law speed dynamic image correction unit 16 to output the selected signal to the display in accordance with whether or not the value of the detected motion vector is larger than the preset value S. As a result, both the high speed dynamic image part and the low speed dynamic image part of the image can be optimally corrected.
摘要翻译：一种显示装置，其通过将帧分割成多个子场并且通过使与输入的图像信号的亮度等级相对应的子场发光来显示多级灰度图像，该运动矢量检测单元10检测表示从一帧到下一帧的块的运动的运动矢量，通过动态图像校正装置校正输入图像信号的高速动态图像校正单元14和法律速度动态图像校正单元16，适合于当检测到的运动矢量的值大于预设值S时，以及当它小于预设值S并输出校正的输入图像信号时的各个情况;以及切换单元18，其选择高速的输出信号动态图像校正单元14或法律速度动态图像校正单元16的输出信号，以将选择的信号输出到显示器检测出的运动矢量的值是否大于预设值S.结果，可以最佳地校正图像的高速动态图像部分和低速动态图像部分。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式