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1. 发明授权

US06999128B2 Stillness judging device and scanning line interpolating device having it 失效
公开(公告)号：US06999128B2
公开(公告)日：2006-02-14
申请号：US10203632
申请日：2001-12-13
申请人： Mitsuhiro Kasahara , Tomoaki Daigi , Hideaki Kawamura
发明人： Mitsuhiro Kasahara , Tomoaki Daigi , Hideaki Kawamura
IPC分类号： H04N11/02
CPC分类号： G06T3/4023 , G06T3/403 , H04N5/144 , H04N7/012 , H04N7/0137
摘要： An inter-frame motion detector detects the presence or absence of motion between frames on the basis of judgment whether or not an inter-frame difference is not more than a set value. A vertical edge continuity detector calculates difference values between an object pixel and pixels above or below the object pixel in an inlaid picture, and detects whether or not there is horizontal continuity of an inter-field vertical edge on the basis of judgment whether or not the signs of the difference values are the same continuously over not less than a predetermined number of pixels, in the horizontal direction, including the object pixel. When it is detected that there is no motion between frames, and it is detected that there is horizontal continuity of the inter-field vertical edge, it is judged that a picture is in a completely still state.

2. 发明申请

US20050140664A1 Image angle detection device and scan line interpolation device having the same 有权
标题翻译：图像角度检测装置及其扫描线插补装置
公开(公告)号：US20050140664A1
公开(公告)日：2005-06-30
申请号：US10509678
申请日：2003-04-30
申请人： Hideaki Kawamura , Mitsuhiro Kasahara , Tomoaki Daigi
发明人： Hideaki Kawamura , Mitsuhiro Kasahara , Tomoaki Daigi
IPC分类号： G06T3/40 , G06T7/00 , G06T7/60 , H04N5/14 , H04N7/01 , H04N5/222
CPC分类号： G06T3/403 , H04N5/142 , H04N7/012 , H04N7/0135 , H04N7/0142
摘要： A binarizer binarizes a video signal input from an A/D converter and a video signal output from a line memory using an average luminance value provided from a detection window video signal processor as a threshold value, and outputs a binary pattern. A reference pattern generater generates a plurality of reference patterns. An angle detector compares the binary pattern with each of the plurality of reference patterns, and outputs the angle of a matched reference pattern as angle information. An arc shape detector outputs the edge angle information of a picture based on a combination of the angle information of an interpolation scanning line including an object interpolation pixel and the angle information of interpolation scanning lines above and below the interpolation scanning line.
摘要翻译：二值化器将从A / D转换器输入的视频信号和从行存储器输出的视频信号二值化，使用从检测窗口视频信号处理器提供的平均亮度值作为阈值，并输出二进制图案。参考图案生成器生成多个参考图案。角度检测器将二进制图案与多个参考图案中的每一个进行比较，并将匹配的参考图案的角度作为角度信息输出。弧形检测器基于内插扫描线的内插扫描线的角度信息和内插扫描线的上下插补扫描线的角度信息的组合，输出图像的边缘角度信息。

3. 发明授权

US06801221B2 Scanning line interpolating device 失效
标题翻译：扫描线内插装置
公开(公告)号：US06801221B2
公开(公告)日：2004-10-05
申请号：US10169753
申请日：2002-07-18
申请人： Hideaki Kawamura , Mitsuhiro Kasahara , Tomoaki Daigi
发明人： Hideaki Kawamura , Mitsuhiro Kasahara , Tomoaki Daigi
IPC分类号： G09G500
CPC分类号： G06T3/4007 , H04N7/012 , H04N7/0135
摘要： A vertical interpolation circuit interpolates an interpolated pixel with pixels located on upper and lower vertical positions, and outputs a vertical interpolated value. An oblique averaging part averages pixels obliquely located with respect to the interpolated pixel on the basis of an oblique edge angle signal, and outputs the result of calculation as an oblique average. An oblique difference absolute value operation part calculates the absolute value of the difference between the values of the pixels obliquely located with respect to the interpolated pixel on the basis of the oblique edge angle signal, and outputs the result of calculation as an oblique difference absolute value. A mixing part outputs the vertical interpolated value, the oblique average or a mixed value thereof as an interpolated pixel value on the basis of the oblique difference absolute value.
摘要翻译：垂直内插电路对位于上下垂直位置的像素内插内插像素，并输出垂直内插值。倾斜平均部分基于斜边角度信号对相对于内插像素倾斜定位的像素进行平均，并将计算结果作为倾斜平均值输出。斜差绝对值运算部根据斜边角度信号，计算出倾斜位置相对于内插像素的像素的差值的绝对值，将其计算结果输出为斜差绝对值。混合部分基于斜差绝对值将垂直内插值，斜平均值或其混合值作为内插像素值输出。

4. 发明授权

US06509884B2 Display device and luminance control method therefor 有权
公开(公告)号：US06509884B2
公开(公告)日：2003-01-21
申请号：US09994771
申请日：2001-11-28
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.

5. 发明授权

US06400346B2 Display apparatus capable of adjusting subfield number according to brightness 有权
公开(公告)号：US06400346B2
公开(公告)日：2002-06-04
申请号：US09788532
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.

6. 发明授权

US06243073B1 Video display monitor 失效
标题翻译：视频显示器
公开(公告)号：US06243073B1
公开(公告)日：2001-06-05
申请号：US08986504
申请日：1997-12-08
申请人： Hideaki Kawamura , Mitsuhiro Kasahara , Kazuo Ohira , Takehisa Hirano , Katsuhiro Nakai
发明人： Hideaki Kawamura , Mitsuhiro Kasahara , Kazuo Ohira , Takehisa Hirano , Katsuhiro Nakai
IPC分类号： G09G510
CPC分类号： G09G3/2022 , G09G3/282 , G09G2310/0205 , G09G2310/0216 , G09G2320/0247
摘要： A video display monitor, such as a plasma monitor, which uses a subfield method which overlaps weighted multiple binary video images in a time base for display. The stable driving of a plasma display panel may be assured and display in the 256 grey-level may be maintained although vertical synchronizing frequency of the input video signal changes. A vertical synchronizing measurement unit measures the vertical synchronizing frequency of the video signal, and a subfield number adjustment unit adjusts the number of subfields in accordance with a measured vertical synchronizing frequency. The stable driving of the plasma display panel and display in grey levels may be assured by selecting a ROM table with an output bit width equivalent to the number of subfields to be output from multiple ROM tables used for converting the number of bits in the input signal.
摘要翻译：诸如等离子体监视器的视频显示监视器，其使用在时基中重叠加权的多个二进制视频图像以进行显示的子场方法。可以确保等离子体显示面板的稳定驱动，并且即使输入视频信号的垂直同步频率发生变化，也可以维持256灰度级的显示。垂直同步测量单元测量视频信号的垂直同步频率，子场数调整单元根据所测量的垂直同步频率来调整子场数。等离子体显示面板的稳定驱动和灰度级显示可以通过选择具有等于从用于转换输入信号中的位数的多个ROM表中输出的子场数量的ROM表来确保。

7. 发明授权

US07474354B2 Image angle detection device and scan line interpolation device having the same 有权
标题翻译：图像角度检测装置及其扫描线插补装置
公开(公告)号：US07474354B2
公开(公告)日：2009-01-06
申请号：US10509678
申请日：2003-04-30
申请人： Hideaki Kawamura , Mitsuhiro Kasahara , Tomoaki Daigi
发明人： Hideaki Kawamura , Mitsuhiro Kasahara , Tomoaki Daigi
IPC分类号： H04N7/01 , H04N11/20
CPC分类号： G06T3/403 , H04N5/142 , H04N7/012 , H04N7/0135 , H04N7/0142
摘要： A binarizer binarizes a video signal input from an A/D converter and a video signal output from a line memory using an average luminance value provided from a detection window video signal processor as a threshold value, and outputs a binary pattern. A reference pattern generator generates a plurality of reference patterns. An angle detector compares the binary pattern with each of the plurality of reference patterns, and outputs the angle of a matched reference pattern as angle information. An arc shape detector outputs the edge angle information of a picture based on a combination of the angle information of an interpolation scanning line including an object interpolation pixel and the angle information of interpolation scanning lines above and below the interpolation scanning line.
摘要翻译：二值化器将从A / D转换器输入的视频信号和从行存储器输出的视频信号二值化，使用从检测窗口视频信号处理器提供的平均亮度值作为阈值，并输出二进制图案。参考图案生成器生成多个参考图案。角度检测器将二进制图案与多个参考图案中的每一个进行比较，并将匹配的参考图案的角度作为角度信息输出。弧形检测器基于内插扫描线的内插扫描线的角度信息和内插扫描线的上下插补扫描线的角度信息的组合，输出图像的边缘角度信息。

8. 发明授权

US07443365B2 Display unit and display method 失效
标题翻译：显示单元和显示方式
公开(公告)号：US07443365B2
公开(公告)日：2008-10-28
申请号：US10541544
申请日：2003-12-26
申请人： Haruko Terai , Hideaki Kawamura , Junta Asano , Mitsuhiro Kasahara
发明人： Haruko Terai , Hideaki Kawamura , Junta Asano , Mitsuhiro Kasahara
IPC分类号： G09G5/10 , G09G5/02 , G09G3/28
CPC分类号： G09G3/2051 , G09G3/2022 , G09G3/2062 , G09G3/2066 , G09G3/2074 , G09G3/2077 , G09G3/288 , G09G2320/0266 , G09G2320/0285
摘要： The combination patterns of emissions and non-emissions from the n-th sub-field to the m-th sub-field (where m and n are integers smaller than the total number of sub-fields, and m is greater than n) for a first pixel, a second pixel, a third pixel, and a fourth pixel that are vertically and horizontally adjacent in each of the areas in a display panel are different from one another. Among the first pixel to the fourth pixel vertically and horizontally adjacent in each area of the display panel, the grayscale value displayed by each of the first pixel and the second pixel arranged in one diagonal positions is lower than the average of the grayscale values displayed by the first pixel to the fourth pixel, while the grayscale value displayed by each of the third pixel and the fourth pixel arranged in the other diagonal positions is higher than the average of the grayscale values displayed by the first pixel to the fourth pixel.
摘要翻译：从第n个子场到第m个子场的发射和非发射的组合模式（其中m和n是小于子场总数的整数，并且m大于n），用于在显示面板中的每个区域中垂直和水平相邻的第一像素，第二像素，第三像素和第四像素彼此不同。在显示面板的每个区域中垂直和水平相邻的第四像素的第一像素中，排列在一个对角线位置的第一像素和第二像素中的每一个显示的灰度值低于由显示面板显示的灰度值的平均值第一像素到第四像素，而排列在其他对角线位置的第三像素和第四像素中的每一个显示的灰度值高于由第一像素显示到第四像素的灰度值的平均值。

9. 发明授权

US07388617B2 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：US07388617B2
公开(公告)日：2008-06-17
申请号：US10509679
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 plurality of interlaced video signals respectively corresponding to a plurality of continuous fields are generated by first, second, and third one-field delay circuits on the basis of an inputted interlaced video signal. A first progressive video field signal is generated by a first progressive video generation circuit on the basis of the plurality of interlaced video signals. A second progressive video field signal is generated by a second progressive video generation circuit on the basis of the plurality of interlaced video signals. Motion amount information in the vertical direction of a picture is calculated by a comparison circuit on the basis of the first progressive video field signal and the second progressive video field signal.
摘要翻译：分别对应于多个连续场的多个隔行视频信号由第一，第二和第三单场延迟电路基于输入的隔行视频信号产生。第一逐行视频信号由第一逐行视频产生电路根据多个隔行视频信号产生。第二逐行视频场信号由第二逐行视频产生电路根据多个隔行视频信号产生。基于第一逐行视频场信号和第二逐行视频场信号，通过比较电路来计算图像的垂直方向上的运动量信息。

10. 发明授权

US06965358B1 Apparatus and method for making a gray scale display with subframes 失效
标题翻译：用子画面进行灰度显示的装置和方法
公开(公告)号：US06965358B1
公开(公告)日：2005-11-15
申请号：US09623452
申请日：2000-01-18
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G3/20 , G09G3/28 , G09G3/34
CPC分类号： G09G3/2059 , G09G3/2022 , G09G3/2044 , G09G3/2077 , G09G3/288 , G09G2320/0261 , G09G2320/0266 , G09G2320/0276 , G09G2320/106
摘要： The invention provides an apparatus and a method applied to a plasma display panel or other display panel, achieving a gray scale display by using a plurality of weighted subfields. The apparatus comprises a gray scale limiting/difference diffusion circuit (17) for converting gray scale levels in a supplied image signal to specific gray scale levels that do not easily create pseudo contours in moving picture areas and to intermediate gray scale levels between the specific gray scale levels, and diffusing the difference between the converted gray scale level and the original gray scale level to adjacent pixels, and a dither circuit (19) for generating a video signal to display the converted gray scale level from the circuit (17) alternately in even and odd fields. The dither circuit (19) generates the video signal in which the gray scale levels offset the dither level above and below the dithered gray scale are alternately presented when the converted gray scale level is a dithered gray scale.
摘要翻译：本发明提供了一种应用于等离子体显示面板或其他显示面板的装置和方法，通过使用多个加权子场来实现灰度显示。该装置包括灰度限制/差分扩散电路（17），用于将所提供的图像信号中的灰度级转换为在运动图像区域中不容易产生伪轮廓的特定灰度级，以及特定灰度级之间的中间灰度级并且将转换的灰度级与原始灰度级之间的差扩散到相邻像素;以及抖动电路（19），用于产生视频信号以从电路（17）交替显示转换的灰度级，偶数和奇数场。抖动电路（19）产生视频信号，其中当转换的灰度级是抖动灰度时，交替呈现灰度等级偏移抖动灰度级上方和下方的抖动级别的视频信号。

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