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1. 发明申请

US20050184981A1 Contrast adjusting circuitry and video display apparatus using same 有权
标题翻译：对比度调节电路和使用其的视频显示装置
公开(公告)号：US20050184981A1
公开(公告)日：2005-08-25
申请号：US11102771
申请日：2005-04-11
申请人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
发明人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36 , H04N5/20 , H04N5/57 , H04N5/70 , H04N9/64 , H04N9/68 , H03M1/12 , H04N11/20
CPC分类号： G09G3/2096 , G09G3/20 , G09G2320/0238 , G09G2320/066 , G09G2320/0666 , G09G2360/16 , H04N5/20 , H04N5/57 , H04N5/70 , H04N21/4318 , H04N21/44008
摘要： With the aim of offering a video display technique by which stable and high contrast video images are reproduced, contrast adjusting circuitry is constructed. The contrast adjusting circuitry detects a maximum picture level (MPL) and an average picture level (APL) of analog-to-digital converted luminance signals for a predetermined period, determines one of the predefined luminance regions within which the MPL falls and one of the predefined luminance regions within which the APL falls, and, based on the thus determined luminance regions of both MPL and APL, carries out a contrast adjustment of video images by changing the gain of luminance signals and color depth correction by changing the gain of color signals.
摘要翻译：为了提供再现稳定和高对比度视频图像的视频显示技术，构建了对比度调整电路。对比度调整电路在预定时间内检测模数转换亮度信号的最大图像电平（MPL）和平均图像电平（APL），确定MPL下降的预定亮度区域中的一个， APL下降的预定亮度区域，并且基于这样确定的MPL和APL的亮度区域，通过改变亮度信号的增益和通过改变颜色信号的增益来改变色彩深度校正来执行视频图像的对比度调整。

2. 发明授权

US07227543B2 Contrast adjusting circuitry and video display apparatus using same 有权
标题翻译：对比度调节电路和使用其的视频显示装置
公开(公告)号：US07227543B2
公开(公告)日：2007-06-05
申请号：US11258994
申请日：2005-10-27
申请人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
发明人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
IPC分类号： G09G5/00
CPC分类号： G09G3/2096 , G09G3/20 , G09G2320/0238 , G09G2320/066 , G09G2320/0666 , G09G2360/16 , H04N5/20 , H04N5/57 , H04N5/70 , H04N21/4318 , H04N21/44008
摘要： With the aim of offering a video display technique by which stable and high contrast video images are reproduced, contrast adjusting circuitry is constructed. The contrast adjusting circuitry detects a maximum picture level (MPL) and an average picture level (APL) of analog-to-digital converted luminance signals for a predetermined period, determines one of the predefined luminance regions within which the MPL falls and one of the predefined luminance regions within which the APL falls, and, based on the thus determined luminance regions of both MPL and APL, carries out a contrast adjustment of video images by changing the gain of luminance signals and color depth correction by changing the gain of color signals.
摘要翻译：为了提供再现稳定和高对比度视频图像的视频显示技术，构建了对比度调整电路。对比度调整电路在预定时间内检测模数转换亮度信号的最大图像电平（MPL）和平均图像电平（APL），确定MPL下降的预定亮度区域中的一个， APL下降的预定亮度区域，并且基于这样确定的MPL和APL的亮度区域，通过改变亮度信号的增益和通过改变颜色信号的增益来改变色彩深度校正来执行视频图像的对比度调整。

3. 发明申请

US20070115303A1 Contrast adjusting circuitry and video display apparatus using same 有权
标题翻译：对比度调节电路和使用其的视频显示装置
公开(公告)号：US20070115303A1
公开(公告)日：2007-05-24
申请号：US11655869
申请日：2007-01-22
申请人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
发明人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
IPC分类号： G09G5/10
CPC分类号： G09G3/2096 , G09G3/20 , G09G2320/0238 , G09G2320/066 , G09G2320/0666 , G09G2360/16 , H04N5/20 , H04N5/57 , H04N5/70 , H04N21/4318 , H04N21/44008
摘要： With the aim of offering a video display technique by which stable and high contrast video images are reproduced, contrast adjusting circuitry is constructed. The contrast adjusting circuitry detects a maximum picture level (MPL) and an average picture level (APL) of analog-to-digital converted luminance signals for a predetermined period, determines one of the predefined luminance regions within which the MPL falls and one of the predefined luminance regions within which the APL falls, and, based on the thus determined luminance regions of both MPL and APL, carries out a contrast adjustment of video images by changing the gain of luminance signals and color depth correction by changing the gain of color signals. By means of the illuminating optics and color synthesis optics of a projector using three video display elements, alleviating color heterogeneity and uneven luminance and offering high contrast images are achieved at reduced cost, and the convergence drift of an enlarged image displayed on the screen can be alleviated.
摘要翻译：为了提供再现稳定和高对比度视频图像的视频显示技术，构建了对比度调整电路。对比度调整电路在预定时间内检测模数转换亮度信号的最大图像电平（MPL）和平均图像电平（APL），确定MPL下降的预定亮度区域中的一个， APL下降的预定亮度区域，并且基于这样确定的MPL和APL的亮度区域，通过改变亮度信号的增益和通过改变颜色信号的增益来改变色彩深度校正来执行视频图像的对比度调整。通过使用三个视频显示元件的投影仪的照明光学元件和颜色合成光学元件，以降低成本实现减轻颜色异质性和不均匀亮度并提供高对比度图像，并且可以在屏幕上显示的放大图像的会聚漂移缓解

4. 发明授权

US06982704B2 Contrast adjusting circuitry and video display apparatus using same 有权
标题翻译：对比度调节电路和使用其的视频显示装置
公开(公告)号：US06982704B2
公开(公告)日：2006-01-03
申请号：US10295033
申请日：2002-11-15
申请人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
发明人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
IPC分类号： G09G5/00
CPC分类号： G09G3/2096 , G09G3/20 , G09G2320/0238 , G09G2320/066 , G09G2320/0666 , G09G2360/16 , H04N5/20 , H04N5/57 , H04N5/70 , H04N21/4318 , H04N21/44008
摘要： With the aim of offering a video display technique by which stable and high contrast video images are reproduced, contrast adjusting circuitry is constructed. The contrast adjusting circuitry detects a maximum picture level (MPL) and an average picture level (APL) of analog-to-digital converted luminance signals for a predetermined period, determines one of the predefined luminance regions within which the MPL falls and one of the predefined luminance regions within which the APL falls, and, based on the thus determined luminance regions of both MPL and APL, carries out a contrast adjustment of video images by changing the gain of luminance signals and color depth correction by changing the gain of color signals.
摘要翻译：为了提供再现稳定和高对比度视频图像的视频显示技术，构建了对比度调整电路。对比度调整电路在预定时间内检测模数转换亮度信号的最大图像电平（MPL）和平均图像电平（APL），确定MPL下降的预定亮度区域中的一个， APL下降的预定亮度区域，并且基于这样确定的MPL和APL的亮度区域，通过改变亮度信号的增益和通过改变颜色信号的增益来改变色彩深度校正来执行视频图像的对比度调整。

5. 发明授权

US07907134B2 Contrast adjusting circuitry and video display apparatus using same 有权
标题翻译：对比度调节电路和使用其的视频显示装置
公开(公告)号：US07907134B2
公开(公告)日：2011-03-15
申请号：US12428281
申请日：2009-04-22
申请人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
发明人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
IPC分类号： G09G5/00
CPC分类号： G09G3/2096 , G09G3/20 , G09G2320/0238 , G09G2320/066 , G09G2320/0666 , G09G2360/16 , H04N5/20 , H04N5/57 , H04N5/70 , H04N21/4318 , H04N21/44008
摘要： With the aim of offering a video display technique by which stable and high contrast video images are reproduced, contrast adjusting circuitry is constructed. The contrast adjusting circuitry detects a maximum picture level (MPL) and an average picture level (APL) of analog -to-dialog converted luminance signals for a predetermined period, determines one of the predefined luminance regions within which the MPL falls and one of the predefined luminance regions within which the APL falls, and, based on the thus determined luminance regions of both MPL and APL, carries out a contrast adjustment of video images by changing the gain of luminance signals and color depth correction by changing the gain of color signals.
摘要翻译：为了提供再现稳定和高对比度视频图像的视频显示技术，构建了对比度调整电路。对比度调整电路在预定时间内检测模拟对话转换的亮度信号的最大图像电平（MPL）和平均图像电平（APL），确定MPL下降的预定亮度区域之一， APL下降的预定亮度区域，并且基于这样确定的MPL和APL的亮度区域，通过改变亮度信号的增益和通过改变颜色信号的增益来改变色彩深度校正来执行视频图像的对比度调整。

6. 发明授权

US07760213B2 Contrast adjusting circuitry and video display apparatus using same 有权
标题翻译：对比度调节电路和使用其的视频显示装置
公开(公告)号：US07760213B2
公开(公告)日：2010-07-20
申请号：US12428246
申请日：2009-04-22
申请人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
发明人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
IPC分类号： G09G5/10
CPC分类号： G09G3/2096 , G09G3/20 , G09G2320/0238 , G09G2320/066 , G09G2320/0666 , G09G2360/16 , H04N5/20 , H04N5/57 , H04N5/70 , H04N21/4318 , H04N21/44008
摘要： With the aim of offering a video display technique by which stable and high contrast video images are reproduced, contrast adjusting circuitry is constructed. The contrast adjusting circuitry detects a maximum picture level (MPL) and an average picture level (APL) of luminance signals for a predetermined period, determines one of the predefined luminance regions within which the MPL falls and one of the predefined luminance regions within which the APL falls, and, based on the thus determined luminance regions of both MPL and APL, carries out a contrast adjustment of video images by changing the gain of luminance signals and color depth correction by changing the gain of color signals.
摘要翻译：为了提供再现稳定和高对比度视频图像的视频显示技术，构建了对比度调整电路。对比度调整电路在预定时间段内检测亮度信号的最大图像电平（MPL）和平均图像电平（APL），确定MPL下降的预定义亮度区域中的一个和其中 APL下降，并且基于由此确定的MPL和APL的亮度区域，通过改变色彩信号的增益来改变亮度信号的增益和色彩深度校正来执行视频图像的对比度调整。

7. 发明授权

US07701475B2 Contrast adjusting circuitry and video display apparatus using the same 有权
标题翻译：对比度调节电路和使用其的视频显示装置
公开(公告)号：US07701475B2
公开(公告)日：2010-04-20
申请号：US11655869
申请日：2007-01-22
申请人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
发明人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
IPC分类号： G09G5/10
CPC分类号： G09G3/2096 , G09G3/20 , G09G2320/0238 , G09G2320/066 , G09G2320/0666 , G09G2360/16 , H04N5/20 , H04N5/57 , H04N5/70 , H04N21/4318 , H04N21/44008
摘要： With the aim of offering a video display technique by which stable and high contrast video images are reproduced, contrast adjusting circuitry is constructed. The contrast adjusting circuitry detects a maximum picture level (MPL) and an average picture level (APL) of luminance signals for a predetermined period, determines one of the predefined luminance regions within which the MPL falls and one of the predefined luminance regions within which the APL falls, and, based on the thus determined luminance regions of both MPL and APL, carries out a contrast adjustment of video images by changing the gain of luminance signals and color depth correction by changing the gain of color signals.
摘要翻译：为了提供再现稳定和高对比度视频图像的视频显示技术，构建了对比度调整电路。对比度调整电路在预定时间段内检测亮度信号的最大图像电平（MPL）和平均图像电平（APL），确定MPL下降的预定义亮度区域中的一个和其中 APL下降，并且基于由此确定的MPL和APL的亮度区域，通过改变色彩信号的增益来改变亮度信号的增益和色彩深度校正来执行视频图像的对比度调整。

8. 发明申请

US20090262259A1 CONTRAST ADJUSTING CIRCUITRY AND VIDEO DISPLAY APPARATUS USING SAME 有权
标题翻译：对比度调节电路和使用相同的视频显示设备
公开(公告)号：US20090262259A1
公开(公告)日：2009-10-22
申请号：US12428281
申请日：2009-04-22
申请人： Hiroshi AOKI , Ryo Hasegawa , Takaaki Matono
发明人： Hiroshi AOKI , Ryo Hasegawa , Takaaki Matono
IPC分类号： H04N9/12
CPC分类号： G09G3/2096 , G09G3/20 , G09G2320/0238 , G09G2320/066 , G09G2320/0666 , G09G2360/16 , H04N5/20 , H04N5/57 , H04N5/70 , H04N21/4318 , H04N21/44008
摘要： With the aim of offering a video display technique by which stable and high contrast video images are reproduced, contrast adjusting circuitry is constructed. The contrast adjusting circuitry detects a maximum picture level (MPL) and an average picture level (APL) of analog-to-digital converted luminance signals for a predetermined period, determines one of the predefined luminance regions within which the MPL falls and one of the predefined luminance regions within which the APL falls, and, based on the thus determined luminance regions of both MPL and APL, carries out a contrast adjustment of video images by changing the gain of luminance signals and color depth correction by changing the gain of color signals.By means of the illuminating optics and color synthesis optics of a projector using three video display elements, alleviating color heterogeneity and uneven luminance and offering high contrast images are achieved at reduced cost, and the convergence drift of an enlarged image displayed on the screen can be alleviated.
摘要翻译：为了提供再现稳定和高对比度视频图像的视频显示技术，构建了对比度调整电路。对比度调整电路在预定时间内检测模数转换亮度信号的最大图像电平（MPL）和平均图像电平（APL），确定MPL下降的预定亮度区域中的一个， APL下降的预定亮度区域，并且基于这样确定的MPL和APL的亮度区域，通过改变亮度信号的增益和通过改变颜色信号的增益来改变色彩深度校正来执行视频图像的对比度调整。通过使用三个视频显示元件的投影仪的照明光学元件和颜色合成光学元件，以降低成本实现减轻颜色异质性和不均匀亮度并提供高对比度图像，并且可以在屏幕上显示的放大图像的会聚漂移缓解

9. 发明申请

US20090262245A1 CONTRAST ADJUSTING CIRCUITRY AND VIDEO DISPLAY APPARATUS USING SAME 有权
公开(公告)号：US20090262245A1
公开(公告)日：2009-10-22
申请号：US12428246
申请日：2009-04-22
申请人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
发明人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
IPC分类号： H04N5/57
CPC分类号： G09G3/2096 , G09G3/20 , G09G2320/0238 , G09G2320/066 , G09G2320/0666 , G09G2360/16 , H04N5/20 , H04N5/57 , H04N5/70 , H04N21/4318 , H04N21/44008
摘要： With the aim of offering a video display technique by which stable and high contrast video images are reproduced, contrast adjusting circuitry is constructed. The contrast adjusting circuitry detects a maximum picture level (MPL) and an average picture level (APL) of analog-to-digital converted luminance signals for a predetermined period, determines one of the predefined luminance regions within which the MPL falls and one of the predefined luminance regions within which the APL falls, and, based on the thus determined luminance regions of both MPL and APL, carries out a contrast adjustment of video images by changing the gain of luminance signals and color depth correction by changing the gain of color signals.By means of the illuminating optics and color synthesis optics of a projector using three video display elements, alleviating color heterogeneity and uneven luminance and offering high contrast images are achieved at reduced cost, and the convergence drift of an enlarged image displayed on the screen can be alleviated.

10. 发明申请

US20060038760A1 Contrast adjusting circuitry and video display apparatus using same 有权
公开(公告)号：US20060038760A1
公开(公告)日：2006-02-23
申请号：US11258994
申请日：2005-10-27
申请人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
发明人： Hiroshi Aoki , Ryo Hasegawa , Takaaki Matono
IPC分类号： G09G3/36
CPC分类号： G09G3/2096 , G09G3/20 , G09G2320/0238 , G09G2320/066 , G09G2320/0666 , G09G2360/16 , H04N5/20 , H04N5/57 , H04N5/70 , H04N21/4318 , H04N21/44008
摘要： With the aim of offering a video display technique by which stable and high contrast video images are reproduced, contrast adjusting circuitry is constructed. The contrast adjusting circuitry detects a maximum picture level (MPL) and an average picture level (APL) of analog-to-digital converted luminance signals for a predetermined period, determines one of the predefined luminance regions within which the MPL falls and one of the predefined luminance regions within which the APL falls, and, based on the thus determined luminance regions of both MPL and APL, carries out a contrast adjustment of video images by changing the gain of luminance signals and color depth correction by changing the gain of color signals.

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