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31. 发明申请

US20100097492A1 APPARATUS AND METHOD FOR CONTROLLING AUTO EXPOSURE 有权
标题翻译：用于控制自动曝光的装置和方法
公开(公告)号：US20100097492A1
公开(公告)日：2010-04-22
申请号：US12467504
申请日：2009-05-18
申请人： Joo Young Ha , Bong Soon Kang , Kyung Rin Kim , Won Tae Choi , Byung Hoon Kim
发明人： Joo Young Ha , Bong Soon Kang , Kyung Rin Kim , Won Tae Choi , Byung Hoon Kim
IPC分类号： H04N5/235
CPC分类号： H04N5/2353
摘要： There is provided an apparatus and method for controlling auto exposure (AE) that is used in digital imaging devices. The apparatus which controls the luminance of an image being outputted from an image sensor by controlling exposure time and analog gain of the image sensor includes: a luminance operation unit operating and outputting a mean luminance of the image outputted from the image sensor; a shutter index determination unit comparing a predetermined target luminance with the mean luminance of the outputted image and determining a shutter index in different manners according to the magnitude of the difference between the target luminance and the mean luminance of the outputted image; and an exposure time/analog gain determination unit generating exposure time and analog gain corresponding to the shutter index determined in the shutter index determination unit and applying the generated exposure time and analog gain to the image sensor. Therefore, the apparatus may be useful to stably reproduce an image with an adequate luminance even when there is a rapid change in brightness of a subject for photography.
摘要翻译：提供了一种用于控制在数字成像装置中使用的自动曝光（AE）的装置和方法。通过控制图像传感器的曝光时间和模拟增益来控制从图像传感器输出的图像的亮度的装置，包括：亮度操作单元，操作并输出从图像传感器输出的图像的平均亮度; 快门指标确定单元，将预定目标亮度与输出图像的平均亮度进行比较，并根据目标亮度和输出图像的平均亮度之间的差值的大小以不同的方式确定快门指数; 以及曝光时间/模拟增益确定单元，其生成与在快门指定确定单元中确定的快门指标相对应的曝光时间和模拟增益，并将所生成的曝光时间和模拟增益应用于图像传感器。因此，即使在摄影对象的亮度急剧变化的情况下，该装置也可以用于以足够的亮度稳定再现图像。

32. 发明授权

US07664455B2 Telephone signal cancellation circuit, digital broadcasting reception circuit and portable digital broadcasting reception apparatus 失效
标题翻译：电话信号消除电路，数字广播接收电路和便携式数字广播接收装置
公开(公告)号：US07664455B2
公开(公告)日：2010-02-16
申请号：US11565522
申请日：2006-11-30
申请人： Won Wook So , Hak Sun Kim , Boo Dong Kwak , Won Tae Choi , Joo Yul Ko
发明人： Won Wook So , Hak Sun Kim , Boo Dong Kwak , Won Tae Choi , Joo Yul Ko
IPC分类号： H04B1/10 , H04B17/00
CPC分类号： H04B1/16
摘要： A telephone signal cancellation circuit, a digital broadcasting reception circuit and a portable digital broadcasting reception apparatus is provided. The telephone signal cancellation circuit, includes a signal coupler for separating a part of a reception signal, a telephone signal selection filter for passing a telephone signal among signals from the signal coupler, a phase shifter for performing phase inversion on the telephone signal among the signals from the telephone signal selection filter, and a combiner for combining the signal from the phase shifter and the reception signal, and canceling the telephone signal included in the reception signal.
摘要翻译：提供电话信号消除电路，数字广播接收电路和便携式数字广播接收装置。电话信号消除电路包括用于分离接收信号的一部分的信号耦合器，用于在来自信号耦合器的信号之间传递电话信号的电话信号选择滤波器，用于对信号中的电话信号进行相位反转的移相器以及用于组合来自移相器的信号和接收信号的组合器，以及抵消包括在接收信号中的电话信号。

33. 发明申请

US20090087092A1 HISTOGRAM STRETCHING APPARATUS AND HISTOGRAM STRETCHING METHOD FOR ENHANCING CONTRAST OF IMAGE 失效
标题翻译：用于增强图像对比度的组织拉伸装置和组织拉伸方法
公开(公告)号：US20090087092A1
公开(公告)日：2009-04-02
申请号：US12238244
申请日：2008-09-25
申请人： Kyoung Joong Min , Hak Sun Kim , Won Tae Choi
发明人： Kyoung Joong Min , Hak Sun Kim , Won Tae Choi
IPC分类号： G06K9/00
CPC分类号： G06T5/40 , G06T5/009 , G06T2207/20008
摘要： A histogram stretching apparatus and a histogram stretching method are disclosed to enhance image contrast by stretching a histogram of an input image within a range of a preset maximum expansion level and a preset minimum expansion level. The histogram stretching apparatus performs proper stretching suitable for a characteristic of the input image in due consideration of a saturation portion and a distribution range of a histogram of the input image. The histogram stretching apparatus can improve stretching effects by removing the saturated portion of the input image, and can prevent image distortion even for a monochromatic image. The histogram apparatus can improve histogram stretching effects by adjusting entire image levels of an image having a histogram frequency distribution skewed to a dark or bright side before a stretching operation.
摘要翻译：公开了一种直方图拉伸装置和直方图拉伸方法，以通过在预设的最大膨胀水平和预设的最小膨胀水平的范围内拉伸输入图像的直方图来增强图像对比度。考虑到输入图像的直方图的饱和部分和分布范围，直方图拉伸装置对输入图像的特性进行适当的拉伸。直方图拉伸装置可以通过去除输入图像的饱和部分来改善拉伸效果，并且甚至可以防止单色图像的图像失真。直方图装置可以通过在拉伸操作之前调整具有倾斜到暗或亮侧的直方图频率分布的图像的整个图像水平来改善直方图拉伸效果。

34. 发明申请

US20090046928A1 Auto white balance method 审中-公开
标题翻译：自动白平衡法
公开(公告)号：US20090046928A1
公开(公告)日：2009-02-19
申请号：US12222660
申请日：2008-08-13
申请人： Boo Dong Kwak , Bong Soon Kang , Sang Choon Kim , Joo Young Ha , Kyoung Soo Son , Hak Sun Kim , Won Tae Choi , Joo Hyun Kim
发明人： Boo Dong Kwak , Bong Soon Kang , Sang Choon Kim , Joo Young Ha , Kyoung Soo Son , Hak Sun Kim , Won Tae Choi , Joo Hyun Kim
IPC分类号： G06K9/03
CPC分类号： H04N1/608 , H04N9/735
摘要： An auto white balance method includes converting a color space of an input image from an RGB color space into the Commission International de I'Eclairage (CIE) L*a*b* color space, determining at least a portion of pixels of the input image, assumed that a reference white color is changed, in a range of a predetermined L*a*b* value as pixels to be used for estimating the reference white color, determining averages of an L* value, an a* value, a b* value of the determined pixels to be used for estimating the reference white color as a reference white color estimation value, and calculating a color gain to move the reference white color estimation value to a target value for a predetermined white balance.
摘要翻译：自动白平衡方法包括将来自RGB颜色空间的输入图像的颜色空间转换为国际照相机（CIE）L * a * b *颜色空间，确定输入图像的至少一部分像素假设在作为用于估计参考白色的像素的预定L * a * b *值的范围内改变参考白色，确定L *值，a *值，ab *的平均值，用于估计参考白色的确定像素的值作为参考白色估计值，以及计算颜色增益以将参考白色颜色估计值移动到预定白平衡的目标值。

35. 发明申请

US20080297605A1 APPARATUS FOR IMAGE PROCESSING 审中-公开
标题翻译：图像处理设备
公开(公告)号：US20080297605A1
公开(公告)日：2008-12-04
申请号：US12128387
申请日：2008-05-28
申请人： Boo Dong Kwak , Won Tae Choi , Byung Hoon Kim
发明人： Boo Dong Kwak , Won Tae Choi , Byung Hoon Kim
IPC分类号： H04N3/28
CPC分类号： H04N5/232
摘要： An apparatus for image processing includes an image sensor including a pixel array of a plurality of pixels, the pixel array having equal vertical and horizontal lengths; a buffer storing image signals scanned at the image sensor; and a controller reading out the image signals stored in the buffer according to a gradient of the image sensor with respect to a reference direction set to a predetermined value on an X-Y plane.
摘要翻译：一种用于图像处理的装置包括：图像传感器，包括多个像素的像素阵列，所述像素阵列具有相同的垂直和水平长度; 存储在图像传感器上扫描的图像信号的缓冲器; 以及控制器，根据图像传感器相对于在X-Y平面上设定为预定值的参考方向的梯度读出存储在缓冲器中的图像信号。

36. 发明申请

US20080112639A1 Method and apparatus for removing noise in dark area of image 审中-公开
标题翻译：消除图像暗区噪声的方法和装置
公开(公告)号：US20080112639A1
公开(公告)日：2008-05-15
申请号：US11984211
申请日：2007-11-14
申请人： Kyoung Joong Min , Won Tae Choi , Tae Eung Kim
发明人： Kyoung Joong Min , Won Tae Choi , Tae Eung Kim
IPC分类号： G06K9/40
CPC分类号： G06T5/002 , G06T5/20 , G06T7/13 , G06T2207/10024 , G06T2207/20012 , G06T2207/20192 , H04N5/357
摘要： A method and apparatus for removing noise in a dark area of an image are provided. An edge magnitude in an N×N window image including a plurality of pixels is calculated. It is determined whether an edge area is present in the window image on the basis of the edge magnitude. A mean value of brightness of the window image is calculated when the edge area is not present. It is determined whether the window image corresponds to a bright area or a dark area on the basis of the mean value. The window image is determined as the bright area when the mean value is higher than a preset brightness reference value, and low-pass filtering is performed on the window image. The window image is determined as the dark area when the mean value does not exceed the reference value, and minimum filtering is performed on the window image.
摘要翻译：提供了用于去除图像的暗区域中的噪声的方法和装置。计算包括多个像素的N×N窗口图像中的边缘幅度。基于边缘大小来确定窗口图像中是否存在边缘区域。当边缘区域不存在时，计算窗口图像的亮度的平均值。基于平均值确定窗口图像是对应于亮区域还是暗区域。当平均值高于预设亮度参考值时，窗口图像被确定为亮区域，并且对窗口图像执行低通滤波。当平均值不超过参考值时，窗口图像被确定为暗区域，并且对窗口图像执行最小滤波。

37. 发明授权

US08614750B2 Apparatus and method for auto white balance control considering the effect of single tone image 有权
标题翻译：考虑单色图像效果的自动白平衡控制装置和方法
公开(公告)号：US08614750B2
公开(公告)日：2013-12-24
申请号：US12588516
申请日：2009-10-19
申请人： Joo Hyun Kim , Bong Soon Kang , Sung Mok Lee , Won Woo Jang , Kyung Rin Kim , Won Tae Choi , Joo Young Ha
发明人： Joo Hyun Kim , Bong Soon Kang , Sung Mok Lee , Won Woo Jang , Kyung Rin Kim , Won Tae Choi , Joo Young Ha
IPC分类号： H04N5/228 , H04N9/73
CPC分类号： H04N9/735
摘要： An apparatus for auto white balance includes a histogram generation unit writing respective histograms of Cb values and Cr values with regard to pixels included in an input image frame, a single-tone determination unit comparing respective maximum values of the histograms of Cb values and Cr values with a first threshold value, and determining the input image frame as a single-tone image if at least one of the maximum values is higher than the first threshold value, and an auto white balance gain computation unit computing and an auto white balance gain by using color information of an input image frame and outputting the computed auto white balance gain, wherein if the input image frame is determined to be a single-tone image, the auto white balance gain computation unit outputs an auto white balance gain computed with respect to a previous input image frame.
摘要翻译：一种用于自动白平衡的装置包括直方图生成单元，其针对包括在输入图像帧中的像素写入相应的Cb值和Cr值的直方图;单色调确定单元，将Cb值和Cr值的直方图的相应最大值进行比较具有第一阈值，并且如果所述最大值中的至少一个高于所述第一阈值，则将所述输入图像帧确定为单色图像，并且自动白平衡增益计算单元计算和自动白平衡增益由使用输入图像帧的颜色信息并输出所计算的自动白平衡增益，其中如果输入图像帧被确定为单色图像，则自动白平衡增益计算单元输出相对于先前的输入图像帧。

38. 发明授权

US08213738B2 Method for eliminating noise from image generated by image sensor 有权
标题翻译：消除图像传感器产生的图像噪声的方法
公开(公告)号：US08213738B2
公开(公告)日：2012-07-03
申请号：US12197167
申请日：2008-08-22
申请人： Tae Hyeon Kwon , Hak Sun Kim , Won Tae Choi
发明人： Tae Hyeon Kwon , Hak Sun Kim , Won Tae Choi
IPC分类号： G06K9/40 , G06K9/48 , H04N5/00
CPC分类号： G06T5/002 , G06T5/20 , G06T2207/20012 , G06T2207/20032 , G06T2207/20192 , H04N5/357
摘要： A method for eliminating noise from an image generated by an image sensor, includes: setting a group of pixels arranged in a square matrix and including a central pixel intended to eliminate the noise in the image and peripheral pixels arranged around the central pixel; obtaining absolute difference values between a luminance value of the central pixel and a luminance value of the peripheral pixels according to directionalities of the peripheral pixels about the central pixel; comparing the obtained absolute difference values with first critical values to determine a region to which the central pixel belongs; when the determined region is the contour region, eliminating noise of the group of the pixels according to directionality of the contour; and when the determined region is the noise region, eliminating the noise of the group of the pixels according to a noise level of the group of the pixels.
摘要翻译：一种用于消除由图像传感器产生的图像的噪声的方法，包括：设置排列成方阵的像素组，并包括旨在消除图像中的噪声的中心像素和围绕中心像素布置的周边像素; 根据围绕中心像素的周边像素的方向，获得中心像素的亮度值和周边像素的亮度值之间的绝对差值; 将获得的绝对差值与第一临界值进行比较，以确定中心像素所属的区域; 当所确定的区域是轮廓区域时，根据轮廓的方向消除像素组的噪声; 并且当所确定的区域是噪声区域时，根据像素组的噪声电平消除像素组的噪声。

39. 发明授权

US08120670B2 Apparatus and method for controlling gain of color signal 失效
标题翻译：用于控制彩色信号增益的装置和方法
公开(公告)号：US08120670B2
公开(公告)日：2012-02-21
申请号：US12276138
申请日：2008-11-21
申请人： Tae Hyeon Kwon , Won Tae Choi , Tae Eung Kim
发明人： Tae Hyeon Kwon , Won Tae Choi , Tae Eung Kim
IPC分类号： H04N9/73 , G06K9/00
CPC分类号： H04N9/735
摘要： An apparatus for controlling gain of color signal includes an auto white balance algorithm applying unit determining a white estimation region from an input image, and calculating a first color signal gain for correcting an average color signal level of pixels of the white estimation region to white, a pixel determining unit determining a form of each pixel according to brightness and color using the color signal level of the each pixel of the input image, and a color signal gain determining unit determining a color signal gain to be applied to the each pixel according to the form of the each pixel of the input image as any one of the first color signal gain, a second color signal gain determined by the color signal level of the each pixel for correcting the each pixel to white and a unit gain.
摘要翻译：用于控制彩色信号增益的装置包括自动白平衡算法应用单元，用于从输入图像确定白色估计区域，并计算第一颜色信号增益，用于将白色估计区域的像素的平均颜色信号电平校正为白色，像素确定单元，使用所述输入图像的每个像素的颜色信号电平，根据亮度和颜色确定每个像素的形状;以及颜色信号增益确定单元，根据所述颜色信号增益确定应用于每个像素的颜色信号增益将输入图像的每个像素的形式作为第一颜色信号增益中的任何一个，由用于校正每个像素的每个像素的颜色信号电平确定的第二颜色信号增益和单位增益。

40. 发明授权

US07773966B2 Mobile terminal and method of reducing interfering phase-noise in the mobile terminal 有权
标题翻译：移动终端和减少移动终端干扰相位噪声的方法
公开(公告)号：US07773966B2
公开(公告)日：2010-08-10
申请号：US11747533
申请日：2007-05-11
申请人： Won Wook So , Hak Sun Kim , Won Tae Choi , Young Kyu Park , Joo Yul Ko
发明人： Won Wook So , Hak Sun Kim , Won Tae Choi , Young Kyu Park , Joo Yul Ko
IPC分类号： H04B1/18 , H04K3/00
CPC分类号： H04B1/525
摘要： A mobile terminal capable of breaking a phase-noise signal caused by a high power transmission signal of a mobile phone such as GSM when receiving digital TV broadcasting such as DVB-H and a method of reducing interfering phase-noise in the mobile terminal. The mobile terminal includes a first RF transmitter/receiver; a first signal coupler; a phase-noise filter; a phase shifter; a VGA amplifier; and a signal combiner.
摘要翻译：一种移动终端，当接收诸如DVB-H的数字电视广播时，能够破坏诸如GSM之类的移动电话的高功率传输信号引起的相位噪声信号，以及减少移动终端中的干扰相位噪声的方法。移动终端包括第一RF发射机/接收机; 第一信号耦合器; 相位噪声滤波器; 移相器一个VGA放大器; 和信号组合器。

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