公开(公告)号：US20090046177A1

公开(公告)日：2009-02-19

申请号：US12073625

申请日：2008-03-07

Applicant: Myoung-Su Lee ,  Su-Hun Lim ,  Jin-Kyeong Heo ,  Tae-Chan Kim ,  Seog-Heon Ham ,  Yong-In Han

Inventor： Myoung-Su Lee ,  Su-Hun Lim ,  Jin-Kyeong Heo ,  Tae-Chan Kim ,  Seog-Heon Ham ,  Yong-In Han

IPC: H04N5/217 ,  H04N5/335

CPC classification number: H04N5/378 ,  H04N5/3658 ,  H04N5/374

Abstract: An apparatus for canceling a fixed pattern noise in a CMOS image sensor includes a storage device, a fixed pattern noise operation circuit, and a fixed pattern noise canceling circuit. The storage device stores first reference fixed pattern noises operated in a vertical blank section of an (n−1)th frame. The fixed pattern noise operation circuit calculates second reference fixed pattern noises based on the first reference fixed pattern noises stored in the storage device and blank fixed pattern noises output in a vertical blank section of an n-th frame and outputs the second reference fixed pattern noises to the storage device to update the first reference fixed pattern noises to the second reference fixed pattern noises. The fixed pattern noise canceling circuit cancels active fixed pattern noises in combination signals based on the combination signals output in an active section of an (n+1)th frame and including the active fixed pattern noises and pixel signals and the second reference fixed pattern noises output from the storage device.

Abstract translation: 一种用于消除CMOS图像传感器中的固定图案噪声的装置，包括存储装置，固定图案噪声运算电路和固定图案噪声消除电路。 存储装置存储在第（n-1）帧的垂直空白部分中操作的第一参考固定模式噪声。 固定模式噪声运算电路基于存储在存储装置中的第一参考固定模式噪声和在第n帧的垂直空白部分中输出的空白固定模式噪声来计算第二参考固定模式噪声，并输出第二参考固定模式噪声 到存储装置，以将第一参考固定模式噪声更新为第二参考固定模式噪声。 固定图案噪声消除电路基于在第（n + 1）帧的有效部分中输出的组合信号消除组合信号中的有源固定模式噪声，并且包括有源固定模式噪声和像素信号以及第二参考固定模式噪声 从存储设备输出。

公开(公告)号：US07978237B2

公开(公告)日：2011-07-12

申请号：US12073625

申请日：2008-03-07

Applicant: Myoung-Su Lee ,  Su-Hun Lim ,  Jin-Kyeong Heo ,  Tae-Chan Kim ,  Seog-Heon Ham ,  Yong-In Han

Inventor： Myoung-Su Lee ,  Su-Hun Lim ,  Jin-Kyeong Heo ,  Tae-Chan Kim ,  Seog-Heon Ham ,  Yong-In Han

IPC: H04N5/217

CPC classification number: H04N5/378 ,  H04N5/3658 ,  H04N5/374

Abstract: An apparatus for canceling a fixed pattern noise in a CMOS image sensor includes a storage device, a fixed pattern noise operation circuit, and a fixed pattern noise canceling circuit. The storage device stores first reference fixed pattern noises operated in a vertical blank section of an (n−1)th frame. The fixed pattern noise operation circuit calculates second reference fixed pattern noises based on the first reference fixed pattern noises stored in the storage device and blank fixed pattern noises output in a vertical blank section of an n-th frame and outputs the second reference fixed pattern noises to the storage device to update the first reference fixed pattern noises to the second reference fixed pattern noises. The fixed pattern noise canceling circuit cancels active fixed pattern noises in combination signals based on the combination signals output in an active section of an (n+1)th frame and including the active fixed pattern noises and pixel signals and the second reference fixed pattern noises output from the storage device.

Abstract translation: 一种用于消除CMOS图像传感器中的固定图案噪声的装置，包括存储装置，固定图案噪声运算电路和固定图案噪声消除电路。 存储装置存储在第（n-1）帧的垂直空白部分中操作的第一参考固定模式噪声。 固定模式噪声运算电路基于存储在存储装置中的第一参考固定模式噪声和在第n帧的垂直空白部分中输出的空白固定模式噪声来计算第二参考固定模式噪声，并输出第二参考固定模式噪声 到存储装置，以将第一参考固定模式噪声更新为第二参考固定模式噪声。 固定图案噪声消除电路基于在第（n + 1）帧的有效部分中输出的组合信号消除组合信号中的有源固定模式噪声，并且包括有源固定模式噪声和像素信号以及第二参考固定模式噪声 从存储设备输出。

公开(公告)号：US08035701B2

公开(公告)日：2011-10-11

申请号：US11680094

申请日：2007-02-28

Applicant: Yong-In Han

Inventor： Yong-In Han

IPC: H04N5/76

CPC classification number: H04N5/23203 ,  H04N5/23225

Abstract: An image tuning system and method using a stored image signal, in which the image tuning system includes an image processing device and an external device. The image processing device outputs a third image signal by processing a first or second image signal according to a tuning parameter. The external device calculates the tuning parameter based on the third image signal. The image processing device receives the second image from the external device in a tuning mode and processes the second image. The image tuning system and the image tuning method using the stored raw image signal can prevent wasting time and extra efforts are not required for setting the tuning parameter adaptive to various weather conditions by repeatedly setting the tuning parameter with respect to a picture image.

Abstract translation: 一种使用存储的图像信号的图像调整系统和方法，其中图像调整系统包括图像处理装置和外部装置。 图像处理装置通过根据调谐参数处理第一或第二图像信号来输出第三图像信号。 外部设备基于第三图像信号计算调谐参数。 图像处理装置以调谐模式从外部装置接收第二图像，并处理第二图像。 使用存储的原始图像信号的图像调整系统和图像调谐方法可以防止浪费时间，并且不需要额外的努力来通过重复设置关于图像的调谐参数来设置适应各种天气条件的调谐参数。

公开(公告)号：US07477804B2

公开(公告)日：2009-01-13

申请号：US10987615

申请日：2004-11-12

Applicant: Hwe-Ihn Chung ,  Yong-In Han

Inventor： Hwe-Ihn Chung ,  Yong-In Han

IPC: G06K9/32

CPC classification number: G06T3/403

Abstract: The present invention is an interpolation device and method. According to the present invention, a plurality of pixels close to a pixel to be interpolated are sequentially set to a central pixel. When a pixel difference closest to a threshold value among pixel differences between the central pixel and a plurality of pixels around the central pixel belongs to a quasi-edge decision range, an edge interpolation and a bilinear interpolation are mixed to interpolate the pixel to be interpolated. As a result, it is possible to prevent reduction in image quality due to an edge verdict caused by unstable input image signal and perform a stable interpolation operation.

Abstract translation: 本发明是一种内插装置和方法。 根据本发明，靠近要插值的像素的多个像素被顺序地设置到中心像素。 当中心像素与中心像素周围的多个像素之间的像素差最接近阈值的像素差属于准边缘判定范围时，将边缘插值和双线性插值混合以内插待内插的像素 。 结果，可以防止由于不稳定的输入图像信号导致的边缘判定造成的图像质量的降低，并且执行稳定的插值操作。

公开(公告)号：US20060193413A1

公开(公告)日：2006-08-31

申请号：US11340946

申请日：2006-01-26

Applicant: Prasenjit Shandilya ,  Yong-In Han

Inventor： Prasenjit Shandilya ,  Yong-In Han

IPC: H04L7/00

CPC classification number: H03K5/135 ,  H03M9/00 ,  H04L7/0338

Abstract: A method of capturing data that are transferred in synchronization with a data strobe signal. The method includes sampling a data strobe signal at a clock frequency higher than a data rate to detect a transition point of the data strobe signal (e.g., by generating and comparing a plurality of sampled data strobe signals), and sampling data to generate sampled data, and selecting reliable data among the sampled data based upon the transition point. A data capture circuit that captures data transferred in synchronization with a data strobe signal, includes a data strobe signal sampling circuit, a data sampling circuit, and may further include a transition position-indicating signal (case) generator and a data selection circuit. Accordingly, the method and the data capture circuit may effectively capture the data transferred in synchronization with the data strobe signal without employing or including a DLL on the chip.

Abstract translation: 一种捕获与数据选通信号同步传送的数据的方法。 该方法包括以高于数据速率的时钟频率采样数据选通信号，以检测数据选通信号的转变点（例如，通过产生和比较多个采样的数据选通信号）和采样数据以产生采样数据 并且基于该转换点在采样数据中选择可靠数据。 捕获与数据选通信号同步传送的数据的数据捕捉电路包括数据选通信号采样电路，数据采样电路，还可以包括转移位置指示信号（情况）发生器和数据选择电路。 因此，该方法和数据采集电路可以有效地捕获与数据选通信号同步地传送的数据，而不在芯片上使用或包括DLL。

公开(公告)号：US07609325B2

公开(公告)日：2009-10-27

申请号：US11274987

申请日：2005-11-15

Applicant: Seok-Jun Park ,  Gwang-Sun Lee ,  Yong-In Han ,  Jung-Tae Kim

Inventor： Seok-Jun Park ,  Gwang-Sun Lee ,  Yong-In Han ,  Jung-Tae Kim

IPC: H04N5/46

CPC classification number: H04N5/2628 ,  H04N7/0122

Abstract: A method and an apparatus for calculating source image coordinates. In an embodiment, a variation rate of the source image coordinate with respect to a converted image coordinate is calculated by a recursive computation, and variation rates are accumulated to obtain the source image coordinate. Because the converted image coordinate sequentially increases one-by-one, the variation rate may be obtained by using adding operations of previously obtained source image coordinate, rather than multiplying operations with the all of the converted image coordinates. Therefore, the source image coordinates may simply and effectively be calculated.

Abstract translation: 一种用于计算源图像坐标的方法和装置。 在一个实施例中，通过递归计算来计算相对于转换图像坐标的源图像坐标的变化率，并且累积变化率以获得源图像坐标。 由于转换的图像坐标依次逐渐增加，所以可以通过使用先前获得的源图像坐标的相加运算而不是将运算与所有转换的图像坐标相乘来获得变化率。 因此，可以简单有效地计算源图像坐标。

公开(公告)号：US07102695B2

公开(公告)日：2006-09-05

申请号：US10440679

申请日：2003-05-19

Applicant: Yong-In Han ,  Chang-Yeong Kim ,  Seong-Deok Lee ,  Chang-Won Huh ,  Seok-Joon Park

Inventor： Yong-In Han ,  Chang-Yeong Kim ,  Seong-Deok Lee ,  Chang-Won Huh ,  Seok-Joon Park

IPC: H04N5/52 ,  H04N5/57 ,  H04N9/64 ,  G09G5/00 ,  G09G5/02 ,  G09G5/10

CPC classification number: H04N5/57 ,  H04N9/68 ,  H04N21/4318 ,  H04N21/44008

Abstract: A method and apparatus for selectively enhancing contrast depending on the level of incoming video signals while preserving colors are provided. An apparatus for enhancing the contrast and brightness of a video signal displayed on a display device includes: a first luminance level transformation circuit that receives luminance and chrominance signals, reduces the level of the luminance signal in response to a first control signal, and outputs the chrominance signals and the luminance signal whose level has been reduced; an image converting circuit that receives the output signals from the first luminance level transformation circuit and converts the received signals into RGB video signals; and a second luminance level transformation circuit that receives the RGB video signals from the image converting circuit, concurrently increases the respective levels of the RGB video signals in response to a second control signal, and outputs the RGB video signals whose levels have been increased. It is desirable that the display device is a color display tube (“CDT”), a thin film transistor liquid crystal display (“TFT-LCD”), or a plasma display panel (“PDP”).

Abstract translation: 提供了一种用于在保留颜色的同时根据输入视频信号的电平有选择地增强对比度的方法和装置。 一种用于增强显示装置上显示的视频信号的对比度和亮度的装置，包括：接收亮度和色度信号的第一亮度级变换电路，响应于第一控制信号降低亮度信号的电平，并输出 色度信号和电平降低的亮度信号; 图像转换电路，接收来自第一亮度级变换电路的输出信号，并将接收的信号转换为RGB视频信号; 以及从图像转换电路接收RGB视频信号的第二亮度电平变换电路，响应于第二控制信号同时增加RGB视频信号的各个电平，并输出其电平已经增加的RGB视频信号。 期望显示装置是彩色显像管（“CDT”），薄膜晶体管液晶显示器（“TFT-LCD”）或等离子体显示面板（“PDP”）。

公开(公告)号：US20060103680A1

公开(公告)日：2006-05-18

申请号：US11274987

申请日：2005-11-15

Applicant: Seok-Jun Park ,  Gwang-Sun Lee ,  Yong-In Han ,  Jung-Tae Kim

Inventor： Seok-Jun Park ,  Gwang-Sun Lee ,  Yong-In Han ,  Jung-Tae Kim

IPC: G09G5/00

CPC classification number: H04N5/2628 ,  H04N7/0122

Abstract: A method and an apparatus for calculating source image coordinates. In an embodiment, a variation rate of the source image coordinate with respect to a converted image coordinate is calculated by a recursive computation, and variation rates are accumulated to obtain the source image coordinate. Because the converted image coordinate sequentially increases one-by-one, the variation rate may be obtained by using adding operations of previously obtained source image coordinate, rather than multiplying operations with the all of the converted image coordinates. Therefore, the source image coordinates may simply and effectively be calculated.

公开(公告)号：US20050105830A1

公开(公告)日：2005-05-19

申请号：US10987615

申请日：2004-11-12

Applicant: Hwe-Ihn Chung ,  Yong-In Han

Inventor： Hwe-Ihn Chung ,  Yong-In Han

IPC: H04N5/44 ,  G06K9/32 ,  G06K9/40

CPC classification number: G06T3/403

Abstract: The present invention is an interpolation device and method. According to the present invention, a plurality of pixels close to a pixel to be interpolated are sequentially set to a central pixel. When a pixel difference closest to a threshold value among pixel differences between the central pixel and a plurality of pixels around the central pixel belongs to a quasi-edge decision range, an edge interpolation and a bilinear interpolation are mixed to interpolate the pixel to be interpolated. As a result, it is possible to prevent reduction in image quality due to an edge verdict caused by unstable input image signal and perform a stable interpolation operation.

Abstract translation: 本发明是一种内插装置和方法。 根据本发明，靠近要插值的像素的多个像素被顺序地设置到中心像素。 当中心像素与中心像素周围的多个像素之间的像素差最接近阈值的像素差属于准边缘判定范围时，将边缘插值和双线性插值混合以内插待内插的像素 。 结果，可以防止由于不稳定的输入图像信号引起的边缘判定造成的图像质量的降低，并且执行稳定的插值操作。