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1. 发明申请

US20120019492A1 DISPLAY BRIGHTNESS CONTROL BASED ON AMBIENT LIGHT LEVELS 有权
标题翻译：基于环境亮度的显示亮度控制
公开(公告)号：US20120019492A1
公开(公告)日：2012-01-26
申请号：US12895285
申请日：2010-09-30
申请人： Ulrich T. Barnhoefer , Wei Chen , Hopil Bae
发明人： Ulrich T. Barnhoefer , Wei Chen , Hopil Bae
IPC分类号： G09G5/00
CPC分类号： H05B33/0851 , G09G2320/0626 , G09G2320/0653 , G09G2360/144 , H05B41/3922
摘要： Methods and devices are provided for controlling the brightness of a display for an electronic device based on ambient light conditions. In one embodiment, an electronic device may employ one or more brightness adjustment profiles for changing the brightness of a display based on the ambient light level. The brightness adjustment profiles may include two or more sections, each corresponding to different ambient light levels, which may be adjusted independently of one another. The different sections may allow a user to customize brightness adjustments for different ambient light conditions. In certain embodiments, the slope and/or offset of a section may be adjusted in response to receiving a user input that changes the brightness setting for a certain ambient light level.
摘要翻译：提供了用于基于环境光条件控制电子设备的显示器的亮度的方法和装置。在一个实施例中，电子设备可以采用一个或多个基于环境光水平改变显示器的亮度的亮度调整简档。亮度调节曲线可以包括两个或更多个部分，每个部分对应于不同的环境光水平，其可以彼此独立地调整。不同的部分可以允许用户为不同的环境光条件自定义亮度调节。在某些实施例中，可以响应于接收到改变特定环境光水平的亮度设置的用户输入来调节区段的斜率和/或偏移。

2. 发明授权

US08884939B2 Display brightness control based on ambient light levels 有权
标题翻译：基于环境光级显示亮度控制
公开(公告)号：US08884939B2
公开(公告)日：2014-11-11
申请号：US12895285
申请日：2010-09-30
申请人： Ulrich T. Barnhoefer , Wei Chen , Hopil Bae
发明人： Ulrich T. Barnhoefer , Wei Chen , Hopil Bae
IPC分类号： G09G5/00 , H05B41/392 , H05B33/08
CPC分类号： H05B33/0851 , G09G2320/0626 , G09G2320/0653 , G09G2360/144 , H05B41/3922
摘要： Methods and devices are provided for controlling the brightness of a display for an electronic device based on ambient light conditions. In one embodiment, an electronic device may employ one or more brightness adjustment profiles for changing the brightness of a display based on the ambient light level. The brightness adjustment profiles may include two or more sections, each corresponding to different ambient light levels, which may be adjusted independently of one another. The different sections may allow a user to customize brightness adjustments for different ambient light conditions. In certain embodiments, the slope and/or offset of a section may be adjusted in response to receiving a user input that changes the brightness setting for a certain ambient light level.
摘要翻译：提供了用于基于环境光条件控制电子设备的显示器的亮度的方法和装置。在一个实施例中，电子设备可以采用一个或多个基于环境光水平改变显示器的亮度的亮度调整简档。亮度调节曲线可以包括两个或更多个部分，每个部分对应于不同的环境光水平，其可以彼此独立地调整。不同的部分可以允许用户为不同的环境光条件自定义亮度调节。在某些实施例中，可以响应于接收到改变特定环境光水平的亮度设置的用户输入来调节区段的斜率和/或偏移。

3. 发明授权

US09119261B2 Display brightness control temporal response 有权
标题翻译：显示亮度控制时间响应
公开(公告)号：US09119261B2
公开(公告)日：2015-08-25
申请号：US12895291
申请日：2010-09-30
申请人： Ulrich T. Barnhoefer , Wei Chen
发明人： Ulrich T. Barnhoefer , Wei Chen
IPC分类号： G06F3/038 , H05B33/08 , H05B41/392
CPC分类号： H05B33/0851 , G09G2320/0626 , G09G2320/0653 , G09G2360/144 , H05B41/3922
摘要： Methods and devices are provided for controlling the brightness of a display for an electronic device based on ambient light conditions. In one embodiment, an electronic device may employ one or more brightness adjustment profiles that define response rates for changing brightness levels based on ambient light levels. The response rates may vary depending on the magnitude and/or direction of change in the ambient light levels. In certain embodiments, the response rates may be designed to approximate the physical response of the human vision system. Further, in certain embodiments, noise reduction techniques may be employed by adjusting the response rates based on the magnitude of the change in the ambient light level and/or based on whether the display is operating at steady state or executing a brightness adjustment.
摘要翻译：提供了用于基于环境光条件控制电子设备的显示器的亮度的方法和装置。在一个实施例中，电子设备可以采用一个或多个亮度调整简档，其基于环境光水平来定义用于改变亮度级别的响应速率。响应率可以根据环境光水平的变化的大小和/或方向而变化。在某些实施例中，响应速率可被设计为近似人类视觉系统的物理响应。此外，在某些实施例中，可以通过基于环境光级别的变化的大小和/或基于显示器是在稳定状态下操作还是执行亮度调整来调整响应速率来采用降噪技术。

4. 发明申请

US20090002565A1 DYNAMIC BACKLIGHT ADAPTATION FOR BLACK BARS WITH SUBTITLES 有权
标题翻译：动态黑色适用于黑色条纹
公开(公告)号：US20090002565A1
公开(公告)日：2009-01-01
申请号：US12145331
申请日：2008-06-24
申请人： Ulrich T. Barnhoefer , Wei H. Yao , Wei Chen , Barry J. Corlett , Jean-Didier Allegrucci
发明人： Ulrich T. Barnhoefer , Wei H. Yao , Wei Chen , Barry J. Corlett , Jean-Didier Allegrucci
IPC分类号： H04N5/57
CPC分类号： G09G3/3611 , G09G3/3406 , G09G2310/0232 , G09G2320/0247 , G09G2320/0271 , G09G2320/0606 , G09G2320/0626 , G09G2320/0646 , G09G2320/0653 , G09G2320/0673 , G09G2330/021 , G09G2340/16 , G09G2360/16 , Y10S348/913
摘要： Embodiments of a system that includes one or more integrated circuits are described. During operation, the system receives a video image, that when displayed, includes a picture portion, a non-picture portion, and a subtitle which is superimposed on at least a subset of the non-picture portion, where the non-picture portion has an initial brightness value. Then, the system scales the brightness of pixels corresponding to a remainder of the non-picture portion of the video image to have a new brightness value that is greater than the initial brightness value to reduce user-perceived changes in the video image associated with backlighting of a display that displays the video image, where the remainder of the non-picture portion excludes the subset of the non-picture portion.
摘要翻译：描述包括一个或多个集成电路的系统的实施例。在操作期间，系统接收视频图像，当显示时，包括图像部分，非图像部分和叠加在非图像部分的至少一个子集上的副标题，其中非图像部分具有初始亮度值。然后，系统缩放与视频图像的非图像部分的剩余部分相对应的像素的亮度，以具有大于初始亮度值的新亮度值，以减少与背光相关联的视频图像中的用户感知的变化显示视频图像的显示器，其中非图像部分的剩余部分排除非图像部分的子集。

5. 发明授权

US08766902B2 Management techniques for video playback 有权
标题翻译：视频播放管理技术
公开(公告)号：US08766902B2
公开(公告)日：2014-07-01
申请号：US12145348
申请日：2008-06-24
申请人： Ulrich T. Barnhoefer , Wei H. Yao , Wei Chen
发明人： Ulrich T. Barnhoefer , Wei H. Yao , Wei Chen
IPC分类号： G09G3/36
CPC分类号： H04N5/58 , G06T5/008 , G09G3/3406 , G09G3/3611 , G09G2320/0247 , G09G2320/0271 , G09G2320/0646 , G09G2320/066 , G09G2330/021 , G09G2360/16 , H04N21/44008 , H04N21/4402
摘要： Embodiments of a system that includes one or more integrated circuits are described. During operation, the system may determine an intensity setting of the light source based on at least a portion of a video image, such as the portion of the transformed video image that includes spatially varying visual information in the video image. Moreover, the system may modify the video image so that a product of the intensity setting and a transmittance associated with the modified video image approximately equals a product of a previous intensity setting and a transmittance associated with the video image. For example, the modification may include scaling brightness values in the transformed video image. Next, the system may identify a region in the video image in which the scaling of the brightness values results in a visual artifact associated with reduced contrast. For example, the region may include a bright region surrounded by a darker region. Then, the system may reduce the scaling of the brightness values in the region to, at least partially, restore the contrast, thereby reducing the visual artifact. Additionally, the system may spatially filter the brightness values in the video image to reduce a spatial discontinuity between the brightness values of pixels within the region and the brightness values in a remainder of the video image.
摘要翻译：描述包括一个或多个集成电路的系统的实施例。在操作期间，系统可以基于视频图像的至少一部分来确定光源的强度设置，诸如包括视频图像中的空间变化的视觉信息的经变换的视频图像的部分。此外，系统可以修改视频图像，使得强度设置和与修改的视频图像相关联的透射率的乘积近似等于先前的强度设置和与视频图像相关联的透射率的乘积。例如，修改可以包括缩放经变换的视频图像中的亮度值。接下来，系统可以识别视频图像中的亮度值的缩放导致与降低的对比度相关联的视觉伪影的区域。例如，该区域可以包括被较暗区域包围的亮区域。然后，该系统可以减少该区域中的亮度值的缩放，至少部分恢复对比度，由此减少视觉伪像。另外，该系统可以对视频图像中的亮度值进行空间滤波，以减少该区域内像素的亮度值与视频图像的其余部分中的亮度值之间的空间不连续性。

6. 发明授权

US08629830B2 Synchronizing dynamic backlight adaptation 有权
标题翻译：同步动态背光适配
公开(公告)号：US08629830B2
公开(公告)日：2014-01-14
申请号：US12145396
申请日：2008-06-24
申请人： Ulrich T. Barnhoefer , Wei H. Yao , Wei Chen , Barry J. Corlett
发明人： Ulrich T. Barnhoefer , Wei H. Yao , Wei Chen , Barry J. Corlett
IPC分类号： G09G3/36
CPC分类号： G09G3/3611 , G09G3/3406 , G09G2310/0232 , G09G2320/0247 , G09G2320/0271 , G09G2320/0606 , G09G2320/0626 , G09G2320/0646 , G09G2320/0653 , G09G2320/0673 , G09G2330/021 , G09G2340/16 , G09G2360/16 , Y10S348/913
摘要： Embodiments of a system that includes one or more integrated circuits are described. During operation, the system receives a sequence of video images and a brightness setting of a light source which is configured to illuminate a display that is configured to display the video images, where the sequence of video images includes video signals. Then, the system determines an intensity setting of the light source on an image-by-image basis for the sequence of video images, where the intensity of a given video image is based on the brightness setting and brightness information contained in the video signals associated with the given video image. Next, the system synchronizes the intensity setting of the light source with a current video image to be displayed.
摘要翻译：描述包括一个或多个集成电路的系统的实施例。在操作期间，系统接收视频图像序列和光源的亮度设置，该光源被配置为照亮被配置为显示视频图像的显示器，其中视频图像序列包括视频信号。然后，系统基于图像序列确定光源的亮度设置，其中给定视频图像的强度基于亮度设置，并且包含在相关联的视频信号中的亮度信息与给定的视频图像。接下来，系统将光源的强度设置与要显示的当前视频图像同步。

7. 发明授权

US08035666B2 Dynamic backlight adaptation for black bars with subtitles 有权
标题翻译：动态背光适配黑色条形字幕
公开(公告)号：US08035666B2
公开(公告)日：2011-10-11
申请号：US12145331
申请日：2008-06-24
申请人： Ulrich T. Barnhoefer , Wei H. Yao , Wei Chen , Barry J. Corlett , Jean-Didier Allegrucci
发明人： Ulrich T. Barnhoefer , Wei H. Yao , Wei Chen , Barry J. Corlett , Jean-Didier Allegrucci
IPC分类号： G09G5/02
CPC分类号： G09G3/3611 , G09G3/3406 , G09G2310/0232 , G09G2320/0247 , G09G2320/0271 , G09G2320/0606 , G09G2320/0626 , G09G2320/0646 , G09G2320/0653 , G09G2320/0673 , G09G2330/021 , G09G2340/16 , G09G2360/16 , Y10S348/913
摘要： Embodiments of a system that includes one or more integrated circuits are described. During operation, the system receives a video image, that when displayed, includes a picture portion, a non-picture portion, and a subtitle which is superimposed on at least a subset of the non-picture portion, where the non-picture portion has an initial brightness value. Then, the system scales the brightness of pixels corresponding to a remainder of the non-picture portion of the video image to have a new brightness value that is greater than the initial brightness value to reduce user-perceived changes in the video image associated with backlighting of a display that displays the video image, where the remainder of the non-picture portion excludes the subset of the non-picture portion.
摘要翻译：描述包括一个或多个集成电路的系统的实施例。在操作期间，系统接收视频图像，当显示时，包括图像部分，非图像部分和叠加在非图像部分的至少一个子集上的副标题，其中非图像部分具有初始亮度值。然后，系统缩放与视频图像的非图像部分的剩余部分相对应的像素的亮度，以具有大于初始亮度值的新亮度值，以减少与背光相关联的视频图像中的用户感知的变化显示视频图像的显示器，其中非图像部分的剩余部分排除非图像部分的子集。

8. 发明申请

US20090002404A1 SYNCHRONIZING DYNAMIC BACKLIGHT ADAPTATION 有权
标题翻译：同步动态背光灯适配器
公开(公告)号：US20090002404A1
公开(公告)日：2009-01-01
申请号：US12145396
申请日：2008-06-24
申请人： Ulrich T. Barnhoefer , Wei H. Yao , Wei Chen , Barry J. Corlett
发明人： Ulrich T. Barnhoefer , Wei H. Yao , Wei Chen , Barry J. Corlett
IPC分类号： G09G5/10 , G09G3/36
CPC分类号： G09G3/3611 , G09G3/3406 , G09G2310/0232 , G09G2320/0247 , G09G2320/0271 , G09G2320/0606 , G09G2320/0626 , G09G2320/0646 , G09G2320/0653 , G09G2320/0673 , G09G2330/021 , G09G2340/16 , G09G2360/16 , Y10S348/913
摘要： Embodiments of a system that includes one or more integrated circuits are described. During operation, the system receives a sequence of video images and a brightness setting of a light source which is configured to illuminate a display that is configured to display the video images, where the sequence of video images includes video signals. Then, the system determines an intensity setting of the light source on an image-by-image basis for the sequence of video images, where the intensity of a given video image is based on the brightness setting and brightness information contained in the video signals associated with the given video image. Next, the system synchronizes the intensity setting of the light source with a current video image to be displayed.
摘要翻译：描述包括一个或多个集成电路的系统的实施例。在操作期间，系统接收视频图像序列和光源的亮度设置，该光源被配置为照亮被配置为显示视频图像的显示器，其中视频图像序列包括视频信号。然后，系统基于图像序列确定光源的亮度设置，其中给定视频图像的强度基于亮度设置，并且包含在相关联的视频信号中的亮度信息与给定的视频图像。接下来，系统将光源的强度设置与要显示的当前视频图像同步。

9. 发明申请

US20090002311A1 DYNAMIC BACKLIGHT ADAPTATION WITH REDUCED FLICKER 有权
标题翻译：动态背光适应减少闪光
公开(公告)号：US20090002311A1
公开(公告)日：2009-01-01
申请号：US12145388
申请日：2008-06-24
申请人： Ulrich T. Barnhoefer , Wei H. Yao , Wei Chen , Barry J. Corlett , Victor E. Alessi
发明人： Ulrich T. Barnhoefer , Wei H. Yao , Wei Chen , Barry J. Corlett , Victor E. Alessi
IPC分类号： G09G3/36 , H04N5/57
CPC分类号： G09G3/3611 , G09G3/3406 , G09G2310/0232 , G09G2320/0247 , G09G2320/0271 , G09G2320/0606 , G09G2320/0626 , G09G2320/0646 , G09G2320/0653 , G09G2320/0673 , G09G2330/021 , G09G2340/16 , G09G2360/16 , Y10S348/913
摘要： Embodiments of a system that includes one or more integrated circuits are described. During operation, the system receives a video image, that when displayed, includes a picture portion and the non-picture portion, where the non-picture portion has a first brightness value. Then, the system scales the non-picture portion to have a second brightness value that is greater than the first brightness value to reduce user-perceived changes in the video image associated with backlighting of a display that displays the video image.
摘要翻译：描述包括一个或多个集成电路的系统的实施例。在操作期间，系统接收视频图像，当显示时，包括图像部分和非图像部分，其中非图像部分具有第一亮度值。然后，系统将非图像部分缩放以具有大于第一亮度值的第二亮度值，以减少与显示视频图像的显示器的背光相关联的视频图像中的用户感知的变化。

10. 发明授权

US08576256B2 Dynamic backlight adaptation for video images with black bars 有权
标题翻译：具有黑色条纹的视频图像的动态背光适配
公开(公告)号：US08576256B2
公开(公告)日：2013-11-05
申请号：US12145368
申请日：2008-06-24
申请人： Ulrich T. Barnhoefer , Wei H. Yao , Wei Chen , Barry J. Corlett
发明人： Ulrich T. Barnhoefer , Wei H. Yao , Wei Chen , Barry J. Corlett
IPC分类号： G09G5/10 , G09G3/36
CPC分类号： G09G3/3611 , G09G3/3406 , G09G2310/0232 , G09G2320/0247 , G09G2320/0271 , G09G2320/0606 , G09G2320/0626 , G09G2320/0646 , G09G2320/0653 , G09G2320/0673 , G09G2330/021 , G09G2340/16 , G09G2360/16 , Y10S348/913
摘要： Embodiments of a system that includes one or more integrated circuits are described. During operation, the system calculates a brightness metric associated with a video image. Then, the system identifies a subset of the video image based on the brightness metric, where the subset of the video image includes spatially varying visual information in the video image. Next, the system determines the intensity setting of the light source based on a first portion of the brightness metric associated with the subset of the video image, where the light source is configured to illuminate a display that is configured to display the video image.
摘要翻译：描述包括一个或多个集成电路的系统的实施例。在操作期间，系统计算与视频图像相关联的亮度度量。然后，系统基于亮度度量识别视频图像的子集，其中视频图像的子集包括视频图像中的空间变化的视觉信息。接下来，系统基于与视频图像的子集相关联的亮度度量的第一部分来确定光源的强度设置，其中光源被配置为照亮被配置为显示视频图像的显示器。

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