公开(公告)号：US07634090B2

公开(公告)日：2009-12-15

申请号：US10762680

申请日：2004-01-21

Applicant: Osamu Kobayashi

Inventor： Osamu Kobayashi

IPC: H04N7/167

CPC classification number: H04N21/44055 ,  H04L29/06 ,  H04N7/1675 ,  H04N21/23476 ,  H04N21/2541 ,  H04N21/4122 ,  H04N21/4367 ,  H04N21/835

Abstract: A packet based high bandwidth copy protection method is described that includes the following operations. Forming a number of data packets at a source device, encrypting selected ones of the data packets based upon a set of encryption values, transmitting the encrypted data packets from the source device to a sink device coupled thereto, decrypting the encrypted data packets based in part upon the encryption values, and accessing the decrypted data packets by the sink device.

Abstract translation: 描述了基于分组的高带宽复制保护方法，其包括以下操作。 在源设备处形成多个数据分组，基于一组加密值对所选数据分组进行加密，将加密的数据分组从源设备传输到耦合到其的宿设备，部分地对加密的数据分组进行解密 根据加密值，以及由宿设备访问解密的数据分组。

公开(公告)号：US07633499B2

公开(公告)日：2009-12-15

申请号：US11264261

申请日：2005-10-31

Applicant: Greg Neal

Inventor： Greg Neal

IPC: G09G5/00

CPC classification number: G09G5/008 ,  G09G5/006 ,  G09G5/18 ,  G09G2340/0421

Abstract: A method, system and apparatus for synchronizing an analog video signal to an LCD monitor is described. For each of a succession of associated video frames are surveyed for a number of displayed features based upon a pseudo-random selection of regions into which the displayed video frame is divided. During successive associated video frames, a minimum number of features each is which is generated by an associated pixel clock is determined based upon a pre-selected number of scans. Subsequent to the determination of the minimum number of features, a transition region for each of plurality of horizontal resolution values is determined by scanning through a selected number of pixel clock phases. Based upon a minimum transition zone corresponding to a maximum change in the number of features for a particular pixel clock phase, an associated horizontal resolution is provided.

Abstract translation: 描述用于将模拟视频信号同步到LCD监视器的方法，系统和装置。 对于一系列相关联的视频帧中的每一个，根据对所显示的视频帧进行划分的区域的伪随机选择，针对多个显示的特征进行测量。 在连续相关联的视频帧期间，基于预先选择的扫描次数来确定由相关联的像素时钟生成的每个特征的最小数量。 在确定最小特征数量之后，通过扫描选定数量的像素时钟相位来确定多个水平分辨率值中的每一个的过渡区域。 基于对应于特定像素时钟相位的特征数量的最大变化的最小过渡区域，提供相关联的水平分辨率。

公开(公告)号：US07573533B2

公开(公告)日：2009-08-11

申请号：US11044774

申请日：2005-01-26

Applicant: Caba Moldvai

Inventor： Caba Moldvai

IPC: H04N5/52

CPC classification number: H04N1/4074 ,  H04N1/4052

Abstract: Disclosed is a method for generating transfer curves for adaptive contrast enhancement. Transfer curves are generated so as to enhance the bright pixels in mostly dark images and the dark pixels in mostly bright images. For a dark image, a transfer curve is generated which increases luminance in high-luminance regions of the image without substantially changing the luminance in the mid- and low-luminance regions of the image. For a bright image, a transfer curve is generated which decreases the luminance in the dark areas of the image without substantially changing the luminance in the mid- and high-luminance regions of the image. For a medium-bright image, a transfer curve is generated with increases the luminance in the high-luminance range and decreases the luminance in the low-luminance range of the histogram without substantially changing the luminance in the medium-luminance range of the image.

Abstract translation: 公开了一种用于产生用于自适应对比度增强的传送曲线的方法。 生成传输曲线，以增强大多数暗图像中的亮像素和大部分明亮图像中的暗像素。 对于暗图像，产生传递曲线，其增加图像的高亮度区域中的亮度，而基本上不改变图像的中间和低亮度区域中的亮度。 对于明亮的图像，产生传递曲线，其降低图像的暗区域中的亮度，而基本上不改变图像的中间和高亮度区域中的亮度。 对于中等亮度的图像，通过增加高亮度范围内的亮度并产生直方图的低亮度范围内的亮度，而不会基本上改变图像的中等亮度范围内的亮度，产生传递曲线。

公开(公告)号：US07505055B2

公开(公告)日：2009-03-17

申请号：US11021130

申请日：2004-12-21

Applicant: Greg Neal

Inventor： Greg Neal

IPC: G09G5/02

CPC classification number: G09G5/006 ,  G09G3/3611 ,  G09G5/008

Abstract: A method, apparatus, and system for determining a horizontal resolution and a phase of an analog video signal arranged to display a number of scan lines each formed of a number of pixels is described. A number of initialization values are set where at least one of the initialization values is a current horizontal resolution and then a difference value for each immediately adjacent ones of the pixels is determined. Next, an edge flag value based upon the difference value is stored in at least one of a number of accumulators such that when at least one of the accumulators has a stored edge flag value that is substantially greater than those stored edge flag values in the other accumulators, then the horizontal resolution is set to the current resolution.

Abstract translation: 描述了一种用于确定布置成显示由多个像素形成的多条扫描线的模拟视频信号的水平分辨率和相位的方法，装置和系统。 设定多个初始化值，其中至少一个初始化值是当前水平分辨率，然后确定每个紧邻的像素的差值。 接下来，基于差分值的边缘标志值被存储在多个累加器中的至少一个中，使得当至少一个累加器具有存储的边缘标志值时，其显着大于另一个中存储的边缘标志值 累加器，则水平分辨率设置为当前分辨率。

公开(公告)号：US07495647B2

公开(公告)日：2009-02-24

申请号：US11021635

申请日：2004-12-22

Applicant: John Tryhub ,  Steve Selby

Inventor： John Tryhub ,  Steve Selby

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G09G5/003 ,  G09G2320/0252 ,  G09G2320/0261 ,  G09G2320/103 ,  G09G2340/0435

Abstract: Reducing fast motion artifacts in an LCD panel by receiving a video stream at a first frame rate which is then downsampled to a second frame rate. The downsampled video stream is then upsampled to a third frame rate and a voltage is applied to a pixel element such that the pixel element transitions from a first pixel value to a predetermined second pixel value within a period of time consistent with the third frame rate.

Abstract translation: 通过以第一帧速率接收视频流来降低LCD面板中的快速运动伪影，然后以第二帧速率对其进行下采样。 下采样的视频流然后被上采样到第三帧速率，并且将电压施加到像素元件，使得像素元件在与第三帧速率一致的时间段内从第一像素值转换到预定的第二像素值。

公开(公告)号：US07480334B2

公开(公告)日：2009-01-20

申请号：US10833198

申请日：2004-04-26

Applicant: Hari N. Nair

Inventor： Hari N. Nair

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04B1/66

CPC classification number: H04N19/00703 ,  G06T7/20 ,  H04N19/513 ,  H04N19/521 ,  H04N19/53 ,  H04N19/80

Abstract: Methods and apparatus, including computer program products, implementing and using techniques for performing temporal motion vector filtering in digital video are disclosed. A recursive hierarchical process is used to determine a motion vector. In the recursive hierarchical process, a neighborhood of old motion vectors is filtered to generate a first estimated motion vector for an image patch in a pair of two image frames. The filtering process uses multiple vectors in a neighborhood around the old motion vector to improve the prediction of the first estimated motion vector. The temporal vector partitioning process separates motion vectors associated with an object from motion vectors associated with a background before selecting a best motion vector, which improves the selection process. The process also works well in the absence of object/background boundaries, as in this case the outlier (incorrect) vector or vectors will be separated out from the good vectors.

Abstract translation: 公开了包括计算机程序产品在数字视频中执行时间运动矢量滤波的实现和使用技术的方法和装置。 递归层次过程用于确定运动矢量。 在递归分层处理中，对旧的运动矢量的邻域进行滤波，以生成一对两个图像帧中的图像块的第一估计运动矢量。 滤波处理使用旧运动矢量周围的邻域中的多个向量来改善第一估计运动矢量的预测。 在选择最佳运动矢量之前，时间矢量分割过程将与对象相关联的运动矢量与与背景相关联的运动矢量分离，这改善了选择过程。 该过程在没有对象/背景边界的情况下也很好地工作，因为在这种情况下，异常值（不正确）的向量或向量将从良好向量中分离出来。

公开(公告)号：US07362319B2

公开(公告)日：2008-04-22

申请号：US11011399

申请日：2004-12-13

Applicant: Greg Neal

Inventor： Greg Neal

IPC: G09G5/00

CPC classification number: G09G5/006 ,  G09G3/3611 ,  G09G5/008

Abstract: Determining a horizontal resolution and a phase of an analog video signal arranged to display a number of scan lines each formed of a number of pixels is described. A number of initialization values are set where at least one of the initialization values is a current horizontal resolution and then a difference value for each immediately adjacent ones of the pixels is determined. Next, an edge flag value based upon the difference value is stored in at least one of a number of accumulators such that when at least one of the accumulators has a stored edge flag value that is substantially greater than those stored edge flag values in the other accumulators, then the horizontal resolution is set to the current resolution.

Abstract translation: 确定被布置为显示由多个像素形成的多条扫描线的模拟视频信号的水平分辨率和相位。 设定多个初始化值，其中至少一个初始化值是当前水平分辨率，然后确定每个紧邻的像素的差值。 接下来，基于差分值的边缘标志值被存储在多个累加器中的至少一个中，使得当至少一个累加器具有存储的边缘标志值时，其显着大于另一个中存储的边缘标志值 累加器，则水平分辨率设置为当前分辨率。

公开(公告)号：US07348950B2

公开(公告)日：2008-03-25

申请号：US10985688

申请日：2004-11-10

Applicant: Matthew Halfant

Inventor： Matthew Halfant

IPC: G09G3/36

CPC classification number: G09G3/36 ,  G09G2320/0252 ,  G09G2340/16

Abstract: A method of overdriving LCD panels to improve LCD pixel response time is described that does not rely upon conventional use of overdrive look up tables. The method is based upon modeling the LCD pixels as linear second-order dynamical systems that leads to simple runtime calculations requiring but a small number of stored panel specific constants.

Abstract translation: 描述过驱动LCD面板以改善LCD像素响应时间的方法，其不依赖于常规使用过驱动查找表。 该方法基于将LCD像素建模为线性二阶动力学系统，其导致简单的运行时计算，但需要少量存储的面板特定常数。

公开(公告)号：US07346226B2

公开(公告)日：2008-03-18

申请号：US10964197

申请日：2004-10-12

Applicant: Vyacheslav Shyshkin

Inventor： Vyacheslav Shyshkin

IPC: G06K9/40 ,  G06K9/38

CPC classification number: H04N19/527 ,  H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/61

Abstract: Disclosed herein are methods and apparatus, including computer program products, implementing and using techniques for reducing mosquito noise in an image frame of a video signal. A window of the image frame is provided. The window includes a plurality of pixel values. One of the pixel values is selected from the pixel values in the window to define a modified window of pixel value differences. A local mean (DC) value is computed based on the pixel value differences. A mosquito noise reduction value is also computed based on the pixel value differences. An artifact attenuation factor is computed as a function of a dynamic range measure of the pixel value differences. A weighted sum of the mosquito noise reduction value and the local mean value, applying the artifact attenuation factor, and the selected pixel value, is computed to generate a modified pixel value.

Abstract translation: 本文公开了包括计算机程序产品，实现和使用用于减少视频信号的图像帧中的蚊式噪声的技术的方法和装置。 提供了图像帧的窗口。 窗口包括多个像素值。 从窗口中的像素值中选择一个像素值，以定义像素值差异的修改窗口。 基于像素值差来计算局部均值（DC）值。 还基于像素值差异计算蚊式降噪值。 作为像素值差的动态范围测量的函数来计算伪像衰减因子。 计算蚊子降噪值和局部平均值的加权和，应用伪像衰减因子和所选择的像素值，以产生修改的像素值。

公开(公告)号：US20080037627A1

公开(公告)日：2008-02-14

申请号：US11758590

申请日：2007-06-05

Applicant: Tianhua Tang ,  Peter Swartz ,  Xu Dong

Inventor： Tianhua Tang ,  Peter Swartz ,  Xu Dong

IPC: H04N11/02

CPC classification number: H04N19/86 ,  H04N19/61

Abstract: Disclosed herein are methods and apparatus, including computer program products, implementing and using techniques for reducing mosquito noise and blockiness in an image frame of a video signal. A border of a pixel block is determined, and if the region surrounded by the border is determined to be associated with mosquito noise or blockiness, then the mosquito noise or blockiness, respectively, is reduced in the region only.

Abstract translation: 本文公开了包括计算机程序产品，实现和使用用于减少视频信号的图像帧中的蚊式噪声和块效应的技术的方法和装置。 确定像素块的边界，并且如果由边界包围的区域被确定为与蚊子噪声或块状物相关联，则在该区域中分别减少了蚊子噪声或阻塞性。