公开(公告)号：US20060089813A1

公开(公告)日：2006-04-27

申请号：US11202417

申请日：2005-08-10

Applicant: Venkat Mushirahad ,  Sujan Thomas ,  Rajanatha Shettigara

Inventor： Venkat Mushirahad ,  Sujan Thomas ,  Rajanatha Shettigara

IPC: G01B5/28 ,  G01B5/30

CPC classification number: H03M1/18

Abstract: A method of automatic gain control in both analog and digital domain is performed by receiving an incoming analog signal, determining an overall gain factor, determining a coarse analog gain control value and a fine digital gain control value, each of which, when taken together substantially equals the already determined overall gain factor, modifying the incoming analog signal using the coarse analog gain control value to form a coarsely adjusted digital signal, digitizing the coarsely adjusted digital signal, and using the fine digital gain control value to process the coarsely adjusted digital signal to form an outgoing digital signal, wherein the outgoing digital signal has been modified in both the analog domain and subsequently in the digital domain to achieve an appropriate signal to noise ratio.

Abstract translation: 通过接收输入的模拟信号，确定整体增益因子，确定粗略的模拟增益控制值和精细的数字增益控制值来执行模拟和数字域中的自动增益控制的一种方法， 等于已经确定的总体增益因子，使用粗略的模拟增益控制值修改输入模拟信号，形成粗调数字信号，数字化粗调数字信号，并使用精细数字增益控制值处理粗调数字信号 以形成输出数字信号，其中输出数字信号已经在模拟域和随后在数字域中被修改以实现适当的信噪比。

公开(公告)号：US20060082587A1

公开(公告)日：2006-04-20

申请号：US11061151

申请日：2005-02-18

Applicant: Ali Noorbakhsh ,  David Keene ,  John Lattanzi ,  Ram Chilukuri

Inventor： Ali Noorbakhsh ,  David Keene ,  John Lattanzi ,  Ram Chilukuri

IPC: G06F12/02

CPC classification number: G09G5/006 ,  G09G2330/021 ,  G09G2370/047

Abstract: A display controller coupled to a display device by way of a display interface and to a host device by way of a data port that includes a processor arranged to process executable instructions and associated data, a single memory device for storing the executable instructions and associated data and EDID corresponding to the display device, and a bridge portion coupling the single memory device to the host device by way of the data port, wherein the bridge portion is always in a powered on state thereby providing access to the single memory device by the host device even when the display controller is in a powered off state such as during a boot up process when the display controller is in the powered off state.

Abstract translation: 一种显示控制器，其通过显示接口耦合到显示设备，并且通过数据端口耦合到主机设备，所述数据端口包括被配置为处理可执行指令和相关联的数据的处理器，用于存储可执行指令和相关数据的单个存储器设备 和EDID，以及桥接部分，其通过所述数据端口将所述单个存储器件耦合到所述主机设备，其中所述桥接部分总是处于通电状态，从而由所述主机提供对所述单个存储器设备的访问 即使当显示控制器处于断电状态时，例如在显示控制器处于断电状态的引导过程中。

公开(公告)号：US20060022858A1

公开(公告)日：2006-02-02

申请号：US10904143

申请日：2004-10-26

Applicant: John Thomas

Inventor： John Thomas

IPC: H03M1/12

CPC classification number: G09G3/20 ,  G09G3/2011 ,  G09G2320/041 ,  G09G2320/0666

Abstract: Abstract of the DisclosureIn digital display circuitry, configured to display an image encoded in an analog display signal, the digital display circuitry includes analog-to-digital converter (ADC) circuitry to recover pixel data elements of the image. During vertical blanking intervals of the analog display signal, the ADC circuitry is calibrated. Outside the vertical blanking intervals, the ADC circuitry is used to convert information in the analog display signal into digital representations of the pixel data elements. For example, the calibrating may include determining more acceptable values for certain ones of the operational parameters of the ADC circuitry.

Abstract translation: 摘要在数字显示电路中，数字显示电路被配置为显示以模拟显示信号编码的图像，数字显示电路包括用于恢复图像的像素数据元素的模数转换器（ADC）电路。 在模拟显示信号的垂直消隐间隔期间，对ADC电路进行校准。 在垂直消隐间隔之外，ADC电路用于将模拟显示信号中的信息转换成像素数据元素的数字表示。 例如，校准可以包括为ADC电路的某些操作参数确定更可接受的值。

公开(公告)号：US06992987B2

公开(公告)日：2006-01-31

申请号：US10726934

申请日：2003-12-02

Applicant: Osamu Kobayashi

Inventor： Osamu Kobayashi

IPC: H04J3/14

CPC classification number: G09G5/006

Abstract: An enumeration method for the link rate and a pixel/audio clock rate. The method can be performed by expressing the pixel/audio clock rate and the link rate with four parameters, A, B, C, and D based upon a master frequency 23.76 GHz as 210×33×57×111 Hz, and regenerating a pixel/audio clock from the link clock.

Abstract translation: 链路速率和像素/音频时钟速率的枚举方法。 该方法可以通过基于主频率23.76GHz作为210x33x57x111Hz的四个参数A，B，C和D表达像素/音频时钟速率和链路速率来执行，并且从链路再生像素/音频时钟 时钟。

公开(公告)号：US20050280641A1

公开(公告)日：2005-12-22

申请号：US11105200

申请日：2005-04-12

Applicant: Osamu Kobayashi

Inventor： Osamu Kobayashi

IPC: G09G3/20 ,  G09G3/36 ,  G09G5/00 ,  H04N11/02

CPC classification number: G09G3/3648 ,  G09G3/3611 ,  G09G5/006 ,  G09G2320/0252 ,  G09G2320/0257 ,  G09G2320/0261 ,  G09G2320/0285 ,  G09G2340/16 ,  G09G2360/18

Abstract: A memory efficient providing LC overdrive for sticky pixels at a frame n−1 for a current frame n based upon sticky pixel data associated with a frame n−2.

Abstract translation: 基于与帧n-2相关联的粘性像素数据，针对当前帧n的帧n-1处的粘性像素提供LC过驱动的存储器有效。

公开(公告)号：US20050184941A1

公开(公告)日：2005-08-25

申请号：US10985688

申请日：2004-11-10

Applicant: Matthew Halfant

Inventor： Matthew Halfant

IPC: G02F1/133 ,  G09G3/20 ,  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：US20050146495A1

公开(公告)日：2005-07-07

申请号：US10993108

申请日：2004-11-18

Applicant: Andrew MacKinnon ,  Steve Selby

Inventor： Andrew MacKinnon ,  Steve Selby

IPC: G09G3/36

CPC classification number: G09G3/3611 ,  G09G2320/0223 ,  G09G2320/0252 ,  G09G2320/0285 ,  G09G2340/16

Abstract: A method for reducing a response time of the pixels corresponding to a period of time required for a selected pixel at a starting pixel value to reach a target pixel value. Providing an n×n LCD overdrive matrix and for a selected pixel at a particular start pixel value, selecting a particular target pixel value to be reached in one frame time, and determining a particular overdrive pixel value based upon the particular start pixel value and the particular target pixel value using triangular interpolation.

Abstract translation: 一种用于减少对应于在起始像素值处所选择的像素所需的时间段的像素的响应时间以达到目标像素值的方法。 提供nxn LCD过驱动矩阵并且对于特定起始像素值处的所选像素，选择要在一帧时间内到达的特定目标像素值，以及基于特定开始像素值和特定目标来确定特定过驱动像素值 像素值使用三角插值。

公开(公告)号：US20050135482A1

公开(公告)日：2005-06-23

申请号：US10832838

申请日：2004-04-26

Applicant: Hari Nair ,  Gordon Petrides

Inventor： Hari Nair ,  Gordon Petrides

IPC: H04N7/26 ,  G06T7/20 ,  H04N5/14 ,  H04N5/44 ,  H04N7/01 ,  H04N7/12 ,  H04N7/24

CPC classification number: H04N5/145 ,  H04N7/014

Abstract: Methods and apparatus, including computer program products, implementing and using techniques for computing motion vectors in a digital video sequence are disclosed. A recursive hierarchical method is used to determine a motion vector by using multiple resolution levels of the image frames. A best motion vector is first determined for the lowest resolution level. The best motion vector is propagated to a higher resolution level, where some adjustments are made and a new best motion vector is determined. The new best motion vector is propagated to yet another higher resolution level, where more adjustments are made and another new best motion vector is determined. This process is repeated until the highest, original, resolution level has been reached and a best motion vector has been identified. The identified best motion vector at the original resolution level is used for performing motion compensation.

Abstract translation: 公开了包括计算机程序产品在数字视频序列中计算运动矢量的实现和使用技术的方法和装置。 使用递归分层方法通过使用图像帧的多个分辨率级别来确定运动矢量。 首先确定最低分辨率级别的最佳运动矢量。 最佳运动矢量被传播到更高的分辨率水平，其中进行一些调整并且确定新的最佳运动矢量。 新的最佳运动矢量传播到另一个更高的分辨率水平，其中进行更多的调整并且确定另一个新的最佳运动矢量。 重复该过程直到达到最高原始分辨率水平，并且已经确定了最佳运动矢量。 使用原始分辨率级别识别的最佳运动矢量进行运动补偿。

公开(公告)号：US20050134740A1

公开(公告)日：2005-06-23

申请号：US11008844

申请日：2004-12-09

Applicant: Ravi Bacche

Inventor： Ravi Bacche

IPC: H04N5/14 ,  H04N9/78

CPC classification number: H04N5/144 ,  H04N9/78

Abstract: An apparatus comprising a video decoder configured to receive a composite video signal modulated on a sub-carrier signal and having a luma component and a chroma component, the video decoder configured to perform a motion detection operation on the luma component and the chroma component in a plurality of frequency regions respectively. The video decoder includes variable threshold logic, coupled to the video decoder, and configured to provide a unique threshold value to the video decoder for each of the plurality of frequency regions respectively. The apparatus also includes a sub-carrier detection logic, coupled to the variable threshold logic, and configured to detect the sub-carrier signal by checking both spatial and temporal characteristics of the sub-carrier detection logic.

Abstract translation: 一种包括视频解码器的装置，被配置为接收在子载波信号上调制的具有亮度分量和色度分量的复合视频信号，所述视频解码器被配置为对所述亮度分量和所述色度分量执行运动检测操作 多个频率区域。 视频解码器包括可变阈值逻辑，耦合到视频解码器，并且被配置为分别为多个频率区域中的每一个向视频解码器提供唯一的阈值。 该装置还包括耦合到可变阈值逻辑的子载波检测逻辑，并且被配置为通过检查副载波检测逻辑的空间和时间特性来检测副载波信号。

公开(公告)号：US20050129330A1

公开(公告)日：2005-06-16

申请号：US10964197

申请日：2004-10-12

Applicant: Vyacheslav Shyshkin

Inventor： Vyacheslav Shyshkin

IPC: G06T5/00 ,  G06T5/20 ,  H04N5/21 ,  H04N7/24 ,  H04N19/00 ,  G06K9/40

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。