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31. 发明申请

US20060072044A1 Image display apparatus and image display method 有权
公开(公告)号：US20060072044A1
公开(公告)日：2006-04-06
申请号：US10542416
申请日：2003-12-26
申请人： Hideaki Kawamura , Haruko Terai , Junta Asano , Mitsuhiro Kasahara
发明人： Hideaki Kawamura , Haruko Terai , Junta Asano , Mitsuhiro Kasahara
IPC分类号： G09G3/36
CPC分类号： G09G3/2022 , G09G3/2044 , G09G3/2803 , G09G2320/0261 , G09G2320/0266 , G09G2320/106 , G09G2340/16 , G09G2360/16
摘要： In an image display apparatus, a video signal is divided for each field into a plurality of sub-fields, each of which is weighted according to the duration of time or number of pulses. The plurality of sub-fields are temporally superimposed for display, so that a grayscale representation is provided. A video signal for the current field is delayed by one field, and output as a video signal for the previous field. Based on the video signal for the current field and the video signal for the previous field, a luminance gradient of an image is detected. A difference between the video signal for the current field and the video signal for the previous field is calculated. Based on the calculated difference and the detected gradient, the amount of motion of the image is calculated by a detecting circuit. Based on the calculated amount of motion of the image, dynamic false contours are reduced by an image data processing circuit.

32. 发明授权

US06414660B1 Display device and method of controlling its brightness 有权
标题翻译：显示装置及其亮度控制方法
公开(公告)号：US06414660B1
公开(公告)日：2002-07-02
申请号：US09856161
申请日：2001-07-31
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G328
CPC分类号： G09G3/2944 , G09G2320/0271 , G09G2320/041 , G09G2320/0626 , G09G2330/045
摘要： A temperature difference estimated value is found from a video signal using a temperature estimated value representing the temperature of the panel outer periphery of a display screen of a PDP and a reference value representing the temperature of the panel outer periphery of the PDP which is outputted from a panel periphery temperature setter by a temperature difference estimator, and the luminance of an image displayed on a display is controlled depending on the temperature difference estimated value by a controller and a brightness controller.
摘要翻译：使用表示PDP的显示画面的面板外周的温度的温度推定值和表示从PDP输出的PDP的面板外周的温度的基准值，从视频信号求出温度差估计值通过温度差估计器的面板周边温度设定器，并且根据控制器和亮度控制器的温度差估计值来控制显示在显示器上的图像的亮度。

33. 发明授权

US06414657B1 Detector for detecting pseudo-contour noise and display apparatus using the detector 失效
标题翻译：用于检测伪轮廓噪声的检测器和使用该检测器的显示装置
公开(公告)号：US06414657B1
公开(公告)日：2002-07-02
申请号：US09355340
申请日：1999-08-05
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G328
CPC分类号： G09G3/2059 , G09G3/2022 , G09G3/2033 , G09G3/2037 , G09G3/2055 , G09G3/288 , G09G2320/0261 , G09G2320/0266 , G09G2320/0276 , G09G2320/106 , G09G2360/16 , H04N5/145
摘要： The invention provides a detector to detect pseudo-contour noise that appears when gradation display is performed in the subfield method on the display apparatus such as a plasma display panel. The invention also provides a display apparatus which makes use of the detector. The detector detects the probability of pseudo-contour noise appearance as a noise quantity (MPD value), which comprises an MPD calculator to calculate the MPD value, an exclusion area detector to detect an area in which diffusion processing is not performed; and a subtractor to remove an exclusion area from an area for which the MPD value has been determined. The display apparatus comprises the detector and a noise diffussing device to reduce appearance of pseudo-contour noise based on the MPD value.
摘要翻译：本发明提供一种检测器，用于检测在诸如等离子体显示面板的显示装置上以子场方法执行灰度显示时出现的伪轮廓噪声。本发明还提供一种使用该检测器的显示装置。检测器将伪轮廓噪声出现的概率检测为噪声量（MPD值），其包括用于计算MPD值的MPD计算器，用于检测不执行扩散处理的区域的排除区域检测器; 以及从已经确定了MPD值的区域去除排除区域的减法器。显示装置包括检测器和噪声扩散装置，以根据MPD值减少伪轮廓噪声的出现。

34. 发明授权

US06384803B2 Display apparatus capable of adjusting subfield number according to brightness 有权
公开(公告)号：US06384803B2
公开(公告)日：2002-05-07
申请号：US09788565
申请日：2001-02-21
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G328
CPC分类号： G09G3/2803 , G09G3/2022 , G09G3/2033 , G09G3/2037 , G09G3/294 , G09G3/34 , G09G2320/0261 , G09G2320/0266 , G09G2320/0276 , G09G2320/041 , G09G2320/0626 , G09G2320/106 , G09G2330/021 , G09G2360/144 , G09G2360/16
摘要： A display apparatus adjusts the brightness of a plasma display panel. The display apparatus comprises an adjusting device, which acquires image brightness data, and adjusts the number of subfields Z on the basis of brightness data.

35. 发明授权

US06351253B2 Display apparatus capable of adjusting subfield number according to brightness 有权
公开(公告)号：US06351253B2
公开(公告)日：2002-02-26
申请号：US09788622
申请日：2001-02-21
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G328
CPC分类号： G09G3/2803 , G09G3/2022 , G09G3/2033 , G09G3/2037 , G09G3/294 , G09G3/34 , G09G2320/0261 , G09G2320/0266 , G09G2320/0276 , G09G2320/041 , G09G2320/0626 , G09G2320/106 , G09G2330/021 , G09G2360/144 , G09G2360/16
摘要： A display apparatus adjusts the brightness of a plasma display panel. The display apparatus comprises an adjusting device, which acquires image brightness data, and adjusts the number of subfields Z on the basis of brightness data.

36. 发明授权

US06317104B1 Plasma display panel drive pulse controller for preventing fluctuation in subframe location 有权
标题翻译：等离子显示面板驱动脉冲控制器，用于防止子帧位置的波动
公开(公告)号：US06317104B1
公开(公告)日：2001-11-13
申请号：US09355331
申请日：1999-08-03
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G328
CPC分类号： G09G3/2022 , G09G3/2803 , G09G3/2942 , G09G2320/0266
摘要： A delay device is provided so that the light emission end point of a most-weighted subfield corresponds to the end point of each field. Alternatively, the light emission center point of a most-weighted subfield appear in the same location in a field. Thus, the light emission center point of the subfield with the largest number of light emissions, that is, the most-weighted subfield, appear in approximately the same location for all fields in a plasma display panel PDP driving signal.
摘要翻译：提供延迟装置，使得最重加权子场的发光端点对应于每个场的终点。或者，最重加权子场的发光中心点出现在场中的相同位置。因此，在等离子体显示面板PDP驱动信号中，对于所有场，在发射次数最多的子场，即最权重的子场的发光中心点出现在大致相同的位置上。

37. 发明授权

US07446815B2 Image conversion device and image conversion method 失效
标题翻译：图像转换装置和图像转换方法
公开(公告)号：US07446815B2
公开(公告)日：2008-11-04
申请号：US10509677
申请日：2003-04-14
申请人： Mitsuhiro Kasahara , Tomoaki Daigi , Hideaki Kawamura , Hideto Nakahigashi , Tomoko Morita
发明人： Mitsuhiro Kasahara , Tomoaki Daigi , Hideaki Kawamura , Hideto Nakahigashi , Tomoko Morita
IPC分类号： H04N7/01 , H04N11/20
CPC分类号： H04N7/012 , H04N5/144 , H04N7/0137
摘要： A first video signal generation circuit newly generates pixels between pixels in a first progressive video field signal outputted by a first progressive video generation circuit, and outputs a third progressive video field signal. A second video signal generation circuit newly generates pixels between pixels in a second progressive video field signal outputted by a second progressive video generation circuit, and outputs a fourth progressive video field signal. A comparison circuit compares the third progressive video field signal and the fourth progressive video field signal, and outputs the result of the comparison as motion amount information. An output circuit synthesizes an intra-field interpolation signal and a frame interfiled interpolation signal on the basis of the motion amount information, and outputs a composite signal as a progressive video signal.
摘要翻译：第一视频信号产生电路新产生由第一逐行视频发生电路输出的第一逐行视频信号中的像素之间的像素，并输出第三逐行视频场信号。第二视频信号产生电路新产生由第二逐行视频发生电路输出的第二逐行视频信号中的像素之间的像素，并输出第四逐行视频场信号。比较电路比较第三逐行视频场信号和第四逐行视频场信号，并将比较结果作为运动量信息输出。输出电路根据运动量信息合成场内插补信号和帧间插补信号，并输出合成信号作为逐行视频信号。

38. 再颁专利

USRE39740E1 Display device and method of controlling its brightness 失效
标题翻译：显示装置及其亮度控制方法
公开(公告)号：USRE39740E1
公开(公告)日：2007-07-24
申请号：US10727326
申请日：2000-09-11
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G3/28
CPC分类号： G09G3/2944 , G09G2320/0271 , G09G2320/041 , G09G2320/0626 , G09G2330/045
摘要： A temperature difference estimated value is found from a video signal using a temperature estimated value representing the temperature of the panel outer periphery of a display screen of a PDP and a reference value representing the temperature of the panel outer periphery of the PDP which is outputted from a panel periphery temperature setter by a temperature difference estimator, and the luminance of an image displayed on a display is controlled depending on the temperature difference estimated value by a controller and a brightness controller.
摘要翻译：使用表示PDP的显示画面的面板外周的温度的温度推定值和表示从PDP输出的PDP的面板外周的温度的基准值，从视频信号求出温度差估计值通过温度差估计器的面板周边温度设定器，并且根据控制器和亮度控制器的温度差估计值来控制显示在显示器上的图像的亮度。

39. 再颁专利

USRE39711E1 Display device and luminance control method therefor 失效
标题翻译：显示装置及其亮度控制方法
公开(公告)号：USRE39711E1
公开(公告)日：2007-07-03
申请号：US10727331
申请日：2003-12-04
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G3/28
CPC分类号： G09G3/2944 , G09G2320/0271 , G09G2320/041 , G09G2320/0626 , G09G2330/045
摘要： A temperature difference estimated value is found from a video signal using a temperature estimated value representing the temperature of the panel outer periphery of a display screen of a PDP and a reference value representing the temperature of the panel outer periphery of the PDP which is outputted from a panel periphery temperature setter by a temperature difference estimator, and the luminance of an image displayed on a display is controlled depending on the temperature difference estimated value by a controller and a brightness controller.
摘要翻译：使用表示PDP的显示画面的面板外周的温度的温度推定值和表示从PDP输出的PDP的面板外周的温度的基准值，从视频信号求出温度差估计值通过温度差估计器的面板周边温度设定器，并且根据控制器和亮度控制器的温度差估计值来控制显示在显示器上的图像的亮度。

40. 发明授权

US07236147B2 Display device, and display method 失效
标题翻译：显示设备和显示方式
公开(公告)号：US07236147B2
公开(公告)日：2007-06-26
申请号：US10069526
申请日：2001-07-05
申请人： Tomoko Morita , Mitsuhiro Kasahara
发明人： Tomoko Morita , Mitsuhiro Kasahara
IPC分类号： G09G3/28
CPC分类号： G09G3/2059 , G09G3/2029 , G09G3/2051 , G09G3/288 , G09G2320/0261 , G09G2320/0266
摘要： A gray level conversion/diffusion circuit diffuses the difference between a non-display gray level and a display gray level by error diffusion processing when a video signal is a video signal of the non-display gray level, a video signal-sub-field corresponder converts a video signal of one field after diffusion to a video signal every sub-field, and a sub-field processor, a scanning and sustain driving circuits and a data driving circuit make a discharge cell of a plasma display panel emit light or emit no light every sub-field in response to the video signal every sub-field.
摘要翻译：当视频信号是非显示灰度级的视频信号时，灰度级转换/扩散电路通过误差扩散处理在非显示灰度级和显示灰度级之间扩散差异，视频信号 - 子场对应器将每个子场的扩散后的一场视频信号转换为视频信号，并且子场处理器，扫描和维持驱动电路以及数据驱动电路使等离子体显示面板的放电单元发光或发射每个子场响应每个子场的视频信号。

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