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1. 发明授权

US07430021B2 Video display apparatus having contour correction function 有权
标题翻译：具有轮廓校正功能的视频显示装置
公开(公告)号：US07430021B2
公开(公告)日：2008-09-30
申请号：US11061826
申请日：2005-02-22
申请人： Masahiro Nako , Yasutaka Tsuru , Ryo Hasegawa , Katsunobu Kimura , Hiroshi Aoki
发明人： Masahiro Nako , Yasutaka Tsuru , Ryo Hasegawa , Katsunobu Kimura , Hiroshi Aoki
IPC分类号： H04N5/208
CPC分类号： H04N5/208
摘要： A picture quality correction circuit is provided which performs contour correction by grasping features of an input video signal accurately. The correction circuit has a filter circuit for extracting contour components in an inputted video signal, a contour component nonlinear processor for changing amplitudes of the contour components extracted by the filter circuit, an adder for adding outputs of the contour component nonlinear processor and the input video signal, a histogram detection circuit for detecting a histogram of the contour components extracted by the filter circuit, and a control circuit for controlling contour emphasis quantities for the contour component nonlinear processor in accordance with the results of detection by the histogram detection circuit.
摘要翻译：提供了通过精确地掌握输入视频信号的特征来执行轮廓校正的图像质量校正电路。校正电路具有用于提取输入视频信号中的轮廓分量的滤波器电路，用于改变由滤波电路提取的轮廓成分的幅度的轮廓分量非线性处理器，用于将轮廓分量非线性处理器和输入视频的输出相加的加法器信号，用于检测由滤波器电路提取的轮廓分量的直方图的直方图检测电路，以及根据直方图检测电路的检测结果来控制轮廓分量非线性处理器的轮廓强调量的控制电路。

2. 发明申请

US20050285977A1 Video display apparatus 有权
标题翻译：视频显示装置
公开(公告)号：US20050285977A1
公开(公告)日：2005-12-29
申请号：US11061826
申请日：2005-02-22
申请人： Masahiro Nako , Yasutaka Tsuru , Ryo Hasegawa , Katsunobu Kimura , Hiroshi Aoki
发明人： Masahiro Nako , Yasutaka Tsuru , Ryo Hasegawa , Katsunobu Kimura , Hiroshi Aoki
IPC分类号： H04N5/14 , H04N5/208 , H04N5/21
CPC分类号： H04N5/208
摘要： A picture quality correction circuit is provided which performs contour correction by grasping features of an input video signal accurately. The correction circuit has a filter circuit for extracting contour components in an inputted video signal, a contour component nonlinear processor for changing amplitudes of the contour components extracted by the filter circuit, an adder for adding outputs of the contour component nonlinear processor and the input video signal, a histogram detection circuit for detecting a histogram of the contour components extracted by the filter circuit, and a control circuit for controlling contour emphasis quantities for the contour component nonlinear processor in accordance with the results of detection by the histogram detection circuit.
摘要翻译：提供了通过精确地掌握输入视频信号的特征来执行轮廓校正的图像质量校正电路。校正电路具有用于提取输入视频信号中的轮廓分量的滤波器电路，用于改变由滤波电路提取的轮廓成分的幅度的轮廓分量非线性处理器，用于将轮廓分量非线性处理器和输入视频的输出相加的加法器信号，用于检测由滤波器电路提取的轮廓分量的直方图的直方图检测电路，以及根据直方图检测电路的检测结果来控制轮廓分量非线性处理器的轮廓强调量的控制电路。

3. 发明授权

US07333081B2 Image display apparatus, display unit driver and image display method for the same 有权
标题翻译：图像显示装置，显示单元驱动器和图像显示方法相同
公开(公告)号：US07333081B2
公开(公告)日：2008-02-19
申请号：US10893989
申请日：2004-07-20
申请人： Hiroshi Aoki , Ryo Hasegawa , Hirofumi Sakamoto , Haruki Takata , Yasutaka Tsuru
发明人： Hiroshi Aoki , Ryo Hasegawa , Hirofumi Sakamoto , Haruki Takata , Yasutaka Tsuru
IPC分类号： G09G3/36
CPC分类号： G09G3/3406 , G09G3/2092 , G09G5/04 , G09G2360/16 , H04N9/3155
摘要： An object of the present invention is to provide an image display technology with which high contrast can be stably obtained.In order to achieve the above object, the present invention changes the gain of a digital luminance signal by feeding back information on maximum and average luminance levels of the luminance signal, adjusts image contrast, and in accordance with the average luminance level detected from the feedback system, controls the illuminance of the backlight applied to a display unit. The control increases the illuminance of the backlight when the detected average luminance level is higher than the upper-limit value of a previously set reference range, and reduces the illuminance when the detected average luminance level is lower than the lower-limit value of the reference range.
摘要翻译：本发明的目的是提供可以稳定地获得高对比度的图像显示技术。为了实现上述目的，本发明通过反馈关于亮度信号的最大和平均亮度水平的信息，调整图像对比度，并且根据从反馈检测到的平均亮度水平来改变数字亮度信号的增益系统控制应用于显示单元的背光的照度。当检测到的平均亮度水平高于预先设定的参考范围的上限值时，控制增加背光的照度，并且当检测到的平均亮度水平低于参考值的下限值时，降低照度范围。

4. 发明申请

US20060061842A1 Image display apparatus 有权
标题翻译：图像显示装置
公开(公告)号：US20060061842A1
公开(公告)日：2006-03-23
申请号：US11063752
申请日：2005-02-24
申请人： Naoya Oka , Ryo Hasegawa , Yasutaka Tsuru , Hiroshi Aoki , Hirofumi Sakamoto
发明人： Naoya Oka , Ryo Hasegawa , Yasutaka Tsuru , Hiroshi Aoki , Hirofumi Sakamoto
IPC分类号： G03F3/08
CPC分类号： H04N5/202 , H04N9/69
摘要： The present invention provides a technique for performing gamma correction processing when there are a plurality of characteristic areas, each of which is characterized by the high frequency in a luminance histogram to improve the impression of contrast. According to the present invention, a luminance characteristic detector (4) detects the luminance of an input image signal and a microcomputer (5) calculates an APL and a luminance histogram of an input image signal. A gamma correction circuit (6) performs the gamma correction processing in response to the luminosity of the input image signal by use of the result of the calculation carried out by the microcomputer (5). Then, if there are a plurality of characteristic areas, each of which is characterized by the high frequency in the luminance histogram, a characteristic emphasis circuit (7) performs grayscale extension processing for the plurality of characteristic areas. This makes it possible to perform the most suitable processing in response to the input image signal so that the impression of contrast is improved.
摘要翻译：本发明提供了一种用于在存在多个特征区域时执行伽马校正处理的技术，每个特征区域的特征在于亮度直方图中的高频以改善对比度的印象。根据本发明，亮度特性检测器（4）检测输入图像信号的亮度，并且微计算机（5）计算输入图像信号的APL和亮度直方图。伽马校正电路（6）通过使用由微计算机（5）执行的计算结果，响应于输入图像信号的亮度来进行伽马校正处理。然后，如果存在多个特征区域，其特征在于亮度直方图中的高频，特征强调电路（7）对多个特征区域进行灰度级扩展处理。这使得可以响应于输入图像信号执行最合适的处理，从而改善了对比度的印象。

5. 发明授权

US07369183B2 Image display apparatus 有权
标题翻译：图像显示装置
公开(公告)号：US07369183B2
公开(公告)日：2008-05-06
申请号：US11063752
申请日：2005-02-24
申请人： Naoya Oka , Ryo Hasegawa , Yasutaka Tsuru , Hiroshi Aoki , Hirofumi Sakamoto
发明人： Naoya Oka , Ryo Hasegawa , Yasutaka Tsuru , Hiroshi Aoki , Hirofumi Sakamoto
IPC分类号： H04N5/202 , H04N9/69 , H04N5/14
CPC分类号： H04N5/202 , H04N9/69
摘要： The present invention provides a technique for performing gamma correction processing when there are a plurality of characteristic areas, each of which is characterized by the high frequency in a luminance histogram to improve the impression of contrast. According to the present invention, a luminance characteristic detector (4) detects the luminance of an input image signal and a microcomputer (5) calculates an APL and a luminance histogram of an input image signal. A gamma correction circuit (6) performs the gamma correction processing in response to the luminosity of the input image signal by use of the result of the calculation carried out by the microcomputer (5). Then, if there are a plurality of characteristic areas, each of which is characterized by the high frequency in the luminance histogram, a characteristic emphasis circuit (7) performs grayscale extension processing for the plurality of characteristic areas. This makes it possible to perform the most suitable processing in response to the input image signal so that the impression of contrast is improved.
摘要翻译：本发明提供了一种用于在存在多个特征区域时执行伽马校正处理的技术，每个特征区域的特征在于亮度直方图中的高频以改善对比度的印象。根据本发明，亮度特性检测器（4）检测输入图像信号的亮度，并且微计算机（5）计算输入图像信号的APL和亮度直方图。伽马校正电路（6）通过使用由微计算机（5）执行的计算结果，响应于输入图像信号的亮度来进行伽马校正处理。然后，如果存在多个特征区域，其特征在于亮度直方图中的高频，特征强调电路（7）对多个特征区域进行灰度级扩展处理。这使得可以响应于输入图像信号执行最合适的处理，从而改善了对比度的印象。

6. 发明申请

US20050057486A1 Image display apparatus, display unit driver and image display method for the same 有权
标题翻译：图像显示装置，显示单元驱动器和图像显示方法相同
公开(公告)号：US20050057486A1
公开(公告)日：2005-03-17
申请号：US10893989
申请日：2004-07-20
申请人： Hiroshi Aoki , Ryo Hasegawa , Hirofumi Sakamoto , Haruki Takata , Yasutaka Tsuru
发明人： Hiroshi Aoki , Ryo Hasegawa , Hirofumi Sakamoto , Haruki Takata , Yasutaka Tsuru
IPC分类号： G02F1/133 , G09G3/18 , G09G3/20 , G09G3/34 , G09G3/36 , G09G5/04 , H04N5/66 , H04N5/74 , H04N9/12
CPC分类号： G09G3/3406 , G09G3/2092 , G09G5/04 , G09G2360/16 , H04N9/3155
摘要： An object of the present invention is to provide an image display technology with which high contrast can be stably obtained. In order to achieve the above object, the present invention changes the gain of a digital luminance signal by feeding back information on maximum and average luminance levels of the luminance signal, adjusts image contrast, and in accordance with the average luminance level detected from the feedback system, controls the illuminance of the backlight applied to a display unit. The control increases the illuminance of the backlight when the detected average luminance level is higher than the upper-limit value of a previously set reference range, and reduces the illuminance when the detected average luminance level is lower than the lower-limit value of the reference range.
摘要翻译：本发明的目的是提供可以稳定地获得高对比度的图像显示技术。为了实现上述目的，本发明通过反馈关于亮度信号的最大和平均亮度水平的信息，调整图像对比度，并且根据从反馈检测到的平均亮度水平来改变数字亮度信号的增益系统控制应用于显示单元的背光的照度。当检测到的平均亮度水平高于预先设定的参考范围的上限值时，控制增加背光的照度，并且当检测到的平均亮度水平低于参考值的下限值时，降低照度范围。

7. 发明授权

US06879112B2 Image display device and method of displaying images with static image detection 有权
标题翻译：图像显示装置和静态图像检测显示图像的方法
公开(公告)号：US06879112B2
公开(公告)日：2005-04-12
申请号：US10646839
申请日：2003-08-25
申请人： Hidenao Kubota , Ryo Hasegawa , Junichi Ikoma , Masahiro Nako
发明人： Hidenao Kubota , Ryo Hasegawa , Junichi Ikoma , Masahiro Nako
IPC分类号： H04N5/66 , G09G3/20 , G09G3/22 , G09G3/28 , G09G3/296 , G09G5/00 , G09G5/10 , G09G5/36 , H04N5/20 , G09G3/10
CPC分类号： H04N5/20 , G09G5/10 , G09G2320/043
摘要： An image display device for displaying images by using the digital signal processing and by making use of the sight emission of the phosphor. An static image is detected from an image signal data, and when the luminance level of the static image is high, the luminance level of the specific area is lowered, and when the luminance level of the static image is low, the luminance level of the specific area is increased. In this manner, it is possible to reduce image retention of the static image when the static image is displayed for a long time.
摘要翻译：一种用于通过使用数字信号处理并利用荧光体的瞄准发射来显示图像的图像显示装置。从图像信号数据检测静态图像，当静态图像的亮度水平高时，特定区域的亮度水平降低，并且当静态图像的亮度水平低时，亮度水平具体面积增加。以这种方式，当长时间显示静态图像时，可以减少静态图像的图像保持。

8. 发明授权

US07719619B2 Image processing apparatus 有权
标题翻译：图像处理装置
公开(公告)号：US07719619B2
公开(公告)日：2010-05-18
申请号：US11367703
申请日：2006-03-06
申请人： Naoya Oka , Masahiro Nako , Ryo Hasegawa , Rikiya Asaoka , Daisuke Honda
发明人： Naoya Oka , Masahiro Nako , Ryo Hasegawa , Rikiya Asaoka , Daisuke Honda
IPC分类号： H04N5/57
CPC分类号： H04N5/20
摘要： An image processing apparatus is provided that performs more appropriate black stretch processing to display a high quality video. The image processing apparatus includes a luminance characteristics detection unit that analyzes a received video signal to detect a frequency of each of a plurality of luminance areas with a luminance at least equal to or lower than a predetermined luminance, a black stretch processing unit that performs black stretch processing for a luminance signal with a luminance equal to or lower than a predetermined luminance level, and a microcomputer that uses the frequency of each of the plurality of luminance areas, detected by the detection unit, to control the black stretch processing of the black stretch processing unit.
摘要翻译：提供一种执行更合适的黑色拉伸处理以显示高质量视频的图像处理装置。该图像处理装置包括亮度特性检测单元，其分析接收到的视频信号，以以至少等于或低于预定亮度的亮度来检测多个亮度区域中的每一个的频率;黑色拉伸处理单元，其执行黑色具有亮度等于或低于预定亮度水平的亮度信号的拉伸处理和使用由检测单元检测的多个亮度区域中的每一个的频率来控制黑色的黑色拉伸处理的微型计算机拉伸处理单元。

9. 发明申请

US20060256240A1 Image processing apparatus 有权
标题翻译：图像处理装置
公开(公告)号：US20060256240A1
公开(公告)日：2006-11-16
申请号：US11367703
申请日：2006-03-06
申请人： Naoya Oka , Masahiro Nako , Ryo Hasegawa , Rikiya Asaoka , Daisuke Honda
发明人： Naoya Oka , Masahiro Nako , Ryo Hasegawa , Rikiya Asaoka , Daisuke Honda
IPC分类号： H04N5/21
CPC分类号： H04N5/20
摘要： An image processing apparatus is provided that performs more appropriate black stretch processing to display a high quality video. The image processing apparatus includes a luminance characteristics detection unit that analyzes a received video signal to detect a frequency of each of a plurality of luminance areas with a luminance at least equal to or lower than a predetermined luminance, a black stretch processing unit that performs black stretch processing for a luminance signal with a luminance equal to or lower than a predetermined luminance level, and a microcomputer that uses the frequency of each of the plurality of luminance areas, detected by the detection unit, to control the black stretch processing of the black stretch processing unit.
摘要翻译：提供一种执行更合适的黑色拉伸处理以显示高质量视频的图像处理装置。该图像处理装置包括亮度特性检测单元，其分析接收到的视频信号，以以至少等于或低于预定亮度的亮度来检测多个亮度区域中的每一个的频率;黑色拉伸处理单元，其执行黑色具有亮度等于或低于预定亮度水平的亮度信号的拉伸处理和使用由检测单元检测的多个亮度区域中的每一个的频率来控制黑色的黑色拉伸处理的微型计算机拉伸处理单元。

10. 发明授权

US07898557B2 Image displaying method, image displaying device, and contrast-adjusting circuit for use therewith 有权
标题翻译：图像显示方法，图像显示装置和对比度调节电路
公开(公告)号：US07898557B2
公开(公告)日：2011-03-01
申请号：US12187922
申请日：2008-08-07
申请人： Hiroshi Aoki , Ryo Hasegawa
发明人： Hiroshi Aoki , Ryo Hasegawa
IPC分类号： G09G5/10 , H04N5/68
CPC分类号： G09G5/10 , G09G3/3611 , G09G2320/0626 , G09G2320/066
摘要： A system provides an image displaying technique that provides stable high contrast even in an area having high brightness. Based on information about an average brightness level of a digital luminance signal, black-correction processing which decreases a brightness level by offsetting the brightness level to the minus side, and increase processing which increases a contrast gain within a dynamic range, are performed for an analog luminance signal or a digital luminance signal, enabling improvement in contrast even where brightness is intense.
摘要翻译：系统提供即使在具有高亮度的区域中也提供稳定的高对比度的图像显示技术。基于关于数字亮度信号的平均亮度水平的信息，通过将亮度水平偏移到负侧来降低亮度水平的黑色校正处理以及增加动态范围内的对比度增益的增加处理被执行模拟亮度信号或数字亮度信号，即使在亮度强烈的情况下也能够提供对比度。

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