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61. 发明授权

US08165419B2 Histogram stretching apparatus and histogram stretching method for enhancing contrast of image 失效
标题翻译：直方图拉伸装置和直方图拉伸方法，用于增强图像的对比度
公开(公告)号：US08165419B2
公开(公告)日：2012-04-24
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： G06K9/40 , G06K9/00 , G09G1/14 , G09G3/28 , G09G5/02 , G09G5/00 , G09G5/10 , G03F3/08 , H04N9/64 , H04N5/202
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。

62. 发明申请

US20110308159A1 Apparatus for detecting coordinates, and display device, security device, and electronic blackboard including the same 审中-公开
标题翻译：用于检测坐标的装置，显示装置，安全装置和包括其的电子黑板
公开(公告)号：US20110308159A1
公开(公告)日：2011-12-22
申请号：US13067678
申请日：2011-06-20
申请人： Jae Kwang Lee , Victor Yurlov , Won Tae Choi , Hyun Jun Kim , Jin Yong Kang
发明人： Jae Kwang Lee , Victor Yurlov , Won Tae Choi , Hyun Jun Kim , Jin Yong Kang
IPC分类号： E05F15/20 , G06F3/042
CPC分类号： G06F3/0423
摘要： There are provided an apparatus for detecting coordinates, which may detect coordinates corresponding to an event occurring within a region of interest, and a display device, a security device, and an electronic blackboard, each including the same. The apparatus for detecting coordinates, which is provided in at least one side of a touch panel having a preset region of interest being surrounded by a frame having a predetermined length, the apparatus comprising: a light source body providing preset light; a scanner emitting the light provided from the light source body at a preset angle to scan the region of interest, and receiving light reflected by the region of interest; a photo diode receiving reflected light to convert the received reflected light to a voltage value; and a beam splitter transmitting the light provided from the light source body to the scanner via a first path, and transmitting, to the photo diode via a second path, the reflected light received from the scanner.
摘要翻译：提供了一种用于检测坐标的装置，其可以检测对应于感兴趣区域内发生的事件的坐标，以及包括该坐标的显示装置，安全装置和电子黑板。用于检测坐标的装置，其设置在具有预定感兴趣区域的触摸面板的至少一侧，被具有预定长度的框架包围，所述装置包括：提供预设光的光源体; 扫描器，其以预定角度发射从光源主体提供的光，以扫描感兴趣区域，以及接收由感兴趣区域反射的光; 接收反射光的光电二极管将所接收的反射光转换为电压值; 以及分束器，其经由第一路径将从光源主体提供的光发送到扫描仪，并且经由第二路径将从扫描器接收的反射光发送到光电二极管。

63. 发明授权

US07969480B2 Method of controlling auto white balance 有权
标题翻译：控制自动白平衡的方法
公开(公告)号：US07969480B2
公开(公告)日：2011-06-28
申请号：US12273962
申请日：2008-11-19
申请人： Gyu Won Kim , Won Tae Choi
发明人： Gyu Won Kim , Won Tae Choi
IPC分类号： H04N9/73 , G06K9/00
CPC分类号： H04N9/735
摘要： There is provided a method of controlling auto white balance that can be appropriately used for a camera of an electric device that uses a wide-angle or a super wide-angle lens. A method of controlling auto white balance according to an aspect of the invention may include: converting a color space of an input image from an RGB color space into a YCbCr color space; dividing the input image into a plurality of divided regions; selecting a predetermined number of divided regions in order determined by mean values of Y of pixels included in the plurality of divided regions; comparing a predetermined threshold value with the number of pixels having values of Cb and Cr within a predetermined Cb-Cr range among the pixels included in the selected divided regions in order to determine a white area; and calculating auto white balance gains by using mean values of Y, mean values of Cb, and mean values of Cr of the pixels included in each of the selected divided regions when the number of pixels within the predetermined Cb-Cr range is greater than the threshold value.
摘要翻译：提供一种控制自动白平衡的方法，其可以适用于使用广角或超广角镜头的电子设备的照相机。根据本发明的一个方面的控制自动白平衡的方法可以包括：将输入图像的颜色空间从RGB颜色空间转换成YCbCr颜色空间; 将输入图像分割成多个分割区域; 根据包含在多个分割区域中的像素的Y的平均值确定顺序选择预定数量的划分区域; 将预定阈值与包括在所选择的分割区域中的像素之间的预定Cb-Cr范围内的具有Cb和Cr值的像素的数量进行比较以确定白色区域; 以及当所述预定Cb-Cr范围内的像素数量大于所述选定分割区域中的每个所述被划分区域时，使用平均值Y，平均值Cb和包括在每个所选择的分割区域中的像素的平均值，计算自动白平衡增益阈值。

64. 发明申请

US20110025845A1 Apparatus and method for measuring location and distance of object by using camera 失效
标题翻译：使用相机测量物体的位置和距离的装置和方法
公开(公告)号：US20110025845A1
公开(公告)日：2011-02-03
申请号：US12588169
申请日：2009-10-06
申请人： Kyu Bum Han , Won Tae Choi , Young Jin Cho
发明人： Kyu Bum Han , Won Tae Choi , Young Jin Cho
IPC分类号： H04N7/18
CPC分类号： G06T7/73 , G06T2207/30256
摘要： The present invention provides an apparatus for measuring a location and a distance of an object by using a camera including: a camera module for photographing an external image; a parameter setup unit for setting internal and external parameters of the camera module; an image processor unit for receiving a captured image of an image photographed from the camera module, extracting a target object within the captured image, and extracting specific point coordinates of the extracted target object; and a location and distance calculating unit for calculating three-dimensional object location information in a two-dimensional camera coordinate system through the internal and external parameters of the camera module and coordinates of the target object, and calculating distance information from the location information of the object.
摘要翻译：本发明提供了一种用于通过使用照相机来测量物体的位置和距离的装置，包括：照相机模块，用于拍摄外部图像; 用于设置摄像机模块的内部和外部参数的参数设置单元; 图像处理器单元，用于接收从相机模块拍摄的图像的拍摄图像，提取拍摄图像内的目标对象，并提取所提取的目标对象的特定点坐标; 以及位置和距离计算单元，用于通过照相机模块的内部和外部参数以及目标对象的坐标来计算二维摄像机坐标系中的三维物体位置信息，并且从位置信息目的。

65. 发明申请

US20080316329A1 CAMERA MODULE 审中-公开
标题翻译：相机模块
公开(公告)号：US20080316329A1
公开(公告)日：2008-12-25
申请号：US12141668
申请日：2008-06-18
申请人： Byung Hoon KIM , Won Tae Choi
发明人： Byung Hoon KIM , Won Tae Choi
IPC分类号： H04N5/228
CPC分类号： H04N5/217 , H04N5/2253 , H04N5/2257 , H04N5/2258 , H04N5/232
摘要： There is provided a camera module including: first and second image sensors having different optical characteristics and sensing images; first and second auxiliary image processors electrically connected to the first and second image sensors, respectively, and correcting optical defects of the images sensed by the first and second sensors, respectively; and an image signal processing section selecting at least one image between the images corrected by the first and second auxiliary image processors, and processing the selected image into an image signal that can be displayed, wherein at least one of the first and second image sensors may include: a center pixel array having a square shape; and first to fourth pixel arrays having one set of sides connected to sides of the center pixel array and having the same length as the sides of the center pixel array.
摘要翻译：提供了一种相机模块，包括：具有不同光学特性和感测图像的第一和第二图像传感器; 第一和第二辅助图像处理器分别电连接到第一和第二图像传感器，并分别校正由第一和第二传感器感测的图像的光学缺陷; 以及图像信号处理部分，选择由第一和第二辅助图像处理器校正的图像之间的至少一个图像，并且将所选择的图像处理成可以显示的图像信号，其中第一和第二图像传感器中的至少一个可以包括：具有正方形形状的中心像素阵列; 以及第一至第四像素阵列，其具有连接到中心像素阵列的侧面并且具有与中心像素阵列的侧边相同长度的一组侧面。

66. 发明授权

US07375669B2 Digital/analog converter 失效
标题翻译：数字/模拟转换器
公开(公告)号：US07375669B2
公开(公告)日：2008-05-20
申请号：US11379428
申请日：2006-04-20
申请人： Byung Hoon Kim , Won Tae Choi , Youn Joong Lee , Chan Woo Park
发明人： Byung Hoon Kim , Won Tae Choi , Youn Joong Lee , Chan Woo Park
IPC分类号： H03M1/66
CPC分类号： H03M1/682 , H03M1/765
摘要： A digital/analog converter includes a first divided-voltage generating section which divides a reference supply voltage through the voltage distribution, a decoder section which receives a digital signal so as to output a decoded selection signal, a first divided-voltage selecting section which selects and outputs a plurality of divided voltages among the divided voltages generated from the first divided-voltage generating section on the basis of the selection signal output from the decoder section, a second divided-voltage selecting section which selects and outputs a plurality of divided voltages among the divided-voltages output from the first divided-voltage selecting section on the basis of the selection signal output from the decoder section, a second divided-voltage generating section which divides the plurality of divided-voltages output from the second divided-voltage selecting section, a third divided-voltage selecting section which selects a predetermined voltage among the divided-voltages output from the second divided-voltages generating section on the basis of the selection signal output from the decoder, and a voltage output section which outputs the predetermined voltage selected from the third divided-voltage selecting section.
摘要翻译：数字/模拟转换器包括：第一分压产生部，其通过电压分布分割参考电源电压;解码器部，其接收数字信号以输出解码的选择信号;第一分压电压选择部，其选择并且根据从解码器部分输出的选择信号，在从第一分压产生部分产生的划分电压之间输出多个分压，第二分压选择部分选择并输出多个分压电压基于从解码器部分输出的选择信号从第一分压电压选择部分输出的分压;第二分压产生部分，从第二分压选择部分输出的多个分压，，第三分压选择部，其选择d中的预定电压基于从解码器输出的选择信号从第二分压产生部分输出的分压，以及输出从第三分压选择部选择的预定电压的电压输出部。

67. 发明申请

US20070080723A1 OUTPUT BUFFER CIRCUIT 失效
标题翻译：输出缓冲电路
公开(公告)号：US20070080723A1
公开(公告)日：2007-04-12
申请号：US11469219
申请日：2006-08-31
申请人： Youn Joong Lee , Won Tae Choi , Chan Woo Park , Byung Hoon Kim
发明人： Youn Joong Lee , Won Tae Choi , Chan Woo Park , Byung Hoon Kim
IPC分类号： H03B1/00
CPC分类号： H03F3/45219 , H03F3/3022 , H03F3/45183 , H03F2203/45118 , H03F2203/45248 , H03F2203/45366 , H03F2203/45536 , H03F2203/45626
摘要： Provided is an output buffer circuit having a slew rate increasing part configured with a switching element. The output buffer circuit can obtain an output voltage having a high slew rate even though a smaller amount of a bias current than that required in a conventional output buffer is used. Therefore, the output buffer circuit can reduce power consumption. In the output buffer circuit with a compensation capacitive load, an input part has two input terminal receiving differential input voltage signals, and an output part increases a gain of the differential input voltages. A current source biases the output part, and a slew rate increasing part is connected to the output part and the compensation capacitive load. The slew rate increasing part includes a switching element to increase a slew rate of the output buffer circuit.
摘要翻译：提供一种具有由开关元件构成的压摆率增加部分的输出缓冲器电路。即使使用比常规输出缓冲器中所需的偏置电流更小的量，输出缓冲器电路也可以获得具有高转换速率的输出电压。因此，输出缓冲电路可以降低功耗。在具有补偿容性负载的输出缓冲电路中，输入部分具有两个输入端接收差分输入电压信号，输出部分增加差分输入电压的增益。电流源偏置输出部分，并且转换速率增加部分连接到输出部分和补偿电容性负载。压摆率增加部分包括提高输出缓冲电路的转换速率的开关元件。

68. 发明授权

US06957156B2 Method for searching for dip angle using tilt-compensated electronic compass 失效
标题翻译：使用倾斜补偿电子罗盘搜索倾角的方法
公开(公告)号：US06957156B2
公开(公告)日：2005-10-18
申请号：US10770503
申请日：2004-02-04
申请人： Han Chul Jo , Won Tae Choi , Chang Hyun Kim , Jin Yong Kang , Oh Jo Kwon , Ha Woong Jeong
发明人： Han Chul Jo , Won Tae Choi , Chang Hyun Kim , Jin Yong Kang , Oh Jo Kwon , Ha Woong Jeong
IPC分类号： G01C17/32 , G01C17/38 , G01F17/00
CPC分类号： G01C17/38
摘要： A method of finding a dip angle in a tilt-compensated electronic compass includes the steps of a) setting a predetermined azimuth angle indicative of a horizontal status of a geomagnetic sensor to a reference azimuth angle; b) if the compass is slightly tilted, stepwise-increasing a dip angle within a predetermined dip angle search range, and calculating azimuth angles associated with individual dip angles; c) comparing the calculated azimuth angles with the reference azimuth angle, and finding one azimuth angle, which is closest to the reference azimuth angle, among the calculated azimuth angles; and d) setting the dip angle applied to the closest azimuth angle to a specific dip angle associated with a corresponding azimuth angle, such that a more accurate azimuth angle can be detected by the on the basis of the calculated dip angle.
摘要翻译：在倾斜补偿电子罗盘中找到倾角的方法包括以下步骤：a）将指示地磁传感器的水平状态的预定方位角设置为参考方位角; b）如果指南针稍微倾斜，在预定倾角搜索范围内逐步增加倾角，并计算与各个倾角相关的方位角; c）将所计算的方位角与参考方位角进行比较，并找出最接近参考方位角的方位角之间的计算方位角; 以及d）将施加到最接近的方位角的倾角设置为与对应的方位角相关联的特定倾角，使得可以通过基于所计算的倾角来检测更准确的方位角。

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