Motion adaptive de-interlacing method and apparatus
    11.
    发明授权
    Motion adaptive de-interlacing method and apparatus 有权
    运动自适应去隔行方法和装置

    公开(公告)号:US06784942B2

    公开(公告)日:2004-08-31

    申请号:US09970984

    申请日:2001-10-05

    CPC classification number: H04N7/0137 H04N7/012

    Abstract: A system and method for generating an interpolated pixel at a vertical position in a field of a video frame. The method comprises the steps of receiving at least two pixels vertically adjacent the vertical position in the field and at least three pixels from at least one adjacent field, detecting a degree of motion in the vicinity of the interpolated pixel, providing weighting factors based on the degree of motion, and calculating the interpolated pixel based on a combination of weighted contributions from the at least two pixels and the at least three pixels. The weighted contributions are derived from a combination of the weighting factors and at least vertical-temporal and temporal interpolation. For at least one degree of said motion, the weighted contributions comprise at least (i) a first positive contribution derived from immediately adjacent ones of the at least two pixels, (ii) a second positive contribution derived from a central one of the at least three pixels located at the vertical position, and (iii) a negative contribution derived from the two of the at least three pixels that are immediately vertically adjacent the central pixel.

    Abstract translation: 一种用于在视频帧的场中的垂直位置处产生内插像素的系统和方法。 该方法包括以下步骤:从场中的垂直位置垂直地接收至少两个像素,并从至少一个相邻场接收至少三个像素,检测内插像素附近的运动程度,提供基于 运动程度,以及基于来自至少两个像素和至少三个像素的加权贡献的组合来计算内插像素。 加权贡献来自加权因子和至少垂直时间和时间插值的组合。 对于所述运动的至少一度,所述加权贡献至少包括(i)从所述至少两个像素中的相邻相邻像素得到的第一正贡献,(ii)从至少一个 位于垂直位置的三个像素,以及(iii)从直接垂直邻近中心像素的至少三个像素中的两个像素导出的负贡献。

    Pre and post filter automatic gain control with bounded pre-filter gain control
    14.
    发明授权
    Pre and post filter automatic gain control with bounded pre-filter gain control 有权
    前置和后置滤波器自动增益控制与有限预滤波器增益控制

    公开(公告)号:US08106709B2

    公开(公告)日:2012-01-31

    申请号:US12630272

    申请日:2009-12-03

    CPC classification number: H03G5/005 H03G3/3089 H03G5/22 H03G9/00 H03G9/005

    Abstract: An electronic circuit includes a first variable gain amplifier for amplifying a signal at an input to provide a first amplified signal; a filter receiving the first amplified signal to provide a filtered signal; a second variable gain amplifier for receiving and amplifying the filtered signal; a second gain control bock, to provide at least one gain control signal derived from the filtered signal, one of the at least one gain control signal to control the gain of the second variable gain amplifier; and a bounding block for receiving one of the at least one gain control signal from the second gain control block, and for generating therefrom a bounded gain control signal to control gain of the first variable gain amplifier.

    Abstract translation: 电子电路包括:第一可变增益放大器,用于放大输入端的信号以提供第一放大信号; 接收第一放大信号以提供滤波信号的滤波器; 第二可变增益放大器,用于接收和放大经滤波的信号; 第二增益控制块,用于提供从滤波信号导出的至少一个增益控制信号,所述至少一个增益控制信号中的一个控制第二可变增益放大器的增益; 以及用于从所述第二增益控制块接收所述至少一个增益控制信号中的一个的边界块,并且用于从其生成有界增益控制信号以控制第一可变增益放大器的增益。

    Method and apparatus for detecting motion between odd and even video fields
    15.
    再颁专利
    Method and apparatus for detecting motion between odd and even video fields 有权
    用于检测奇数和偶数视频场之间运动的方法和装置

    公开(公告)号:USRE41196E1

    公开(公告)日:2010-04-06

    申请号:US11250140

    申请日:2005-10-12

    Applicant: Steve Selby

    Inventor: Steve Selby

    CPC classification number: H04N7/012 H04N5/144 H04N5/145 H04N19/16 H04N19/51

    Abstract: A method for measuring motion at a horizontal and vertical position between video fields of opposite parity comprising the steps of measuring the signal values of at least two vertically adjacent pixels from a video field of one parity and at least two vertically adjacent pixels from a video field of the opposite parity such that when taken together, the pixels represent contiguous samples of an image at said horizontal and vertical position, and determining whether the signal value of any of the pixels lies between the signal values of adjacent pixels in the field of opposite parity and in response outputting a zero motion value, otherwise, outputting a motion value equal to the lowest absolute difference between any of the pixels and its closest adjacent pixel in the field of opposite parity.

    Abstract translation: 一种用于测量相对奇偶校验视频场之间的水平和垂直位置的运动的方法,包括以下步骤:从一个奇偶校验的视场和至少两个垂直相邻像素的视频场测量至少两个垂直相邻像素的信号值 相反的奇偶校验,使得当被合并在一起时,像素表示在所述水平和垂直位置处的图像的连续采样,并且确定任何像素的信号值是否位于相对奇偶校验场中的相邻像素的信号值之间 并且响应于输出零运动值,否则,输出等于相对奇偶校验场中的任何像素与其最邻近像素之间的最低绝对差的运动值。

    INTERFERENCE AVOIDANCE IN A TELEVISION RECEIVER
    17.
    发明申请
    INTERFERENCE AVOIDANCE IN A TELEVISION RECEIVER 有权
    电视接收机中的干扰避免

    公开(公告)号:US20080225174A1

    公开(公告)日:2008-09-18

    申请号:US12038781

    申请日:2008-02-27

    Abstract: Various embodiments are described herein for a universal television receiver that is capable of processing television channel signals broadcast according to a variety of analog and digital broadcast standards. In particular, various embodiments are provided for avoiding interferers in a desired television channel signal and these embodiments generally include changing sampling rate, shifting certain oscillation frequencies or changing sampling rate and shifting certain oscillation frequencies.

    Abstract translation: 这里描述了能够处理根据各种模拟和数字广播标准广播的电视频道信号的通用电视接收机的各种实施例。 具体地,提供了各种实施例以避免期望的电视频道信号中的干扰源,并且这些实施例通常包括改变采样率,移动某些振荡频率或改变采样率并移位某些振荡频率。

    Method and apparatus for correcting errors in displays
    18.
    发明申请
    Method and apparatus for correcting errors in displays 审中-公开
    用于校正显示器中的错误的方法和装置

    公开(公告)号:US20060028401A1

    公开(公告)日:2006-02-09

    申请号:US11242706

    申请日:2005-10-03

    CPC classification number: G09G1/16 G09G2320/02 H04N3/2335

    Abstract: A system for enhancing brightness and resolution while correcting certain types of convergence, geometry, color and luminance errors caused by the display device, the viewing position or both. This system involves merging images from two or more sources, overlapping and offsetting pixels, or overlapping scanning lines ‘merged raster’ in a CRT or several (3) ‘merged rasters’ in color CRTs, and adjusting video content and timing, to compensate for the current viewing position and/or device distortion. Display and/or viewing perspective distortion characteristics are measured from the observers viewing position for the raster or each non-converged raster and stored as correction factor data in non-volatile memory. This data is used to modify the digital addressing of video image memory, to read and to correct pixel data for each image, adjust color, modify magnitude, and to drive the displays video amplifier at the correct time with the corrected amplitude and image data. Making these changes within the video path provides substantial improvements in image quality and in cost savings.

    Abstract translation: 一种用于在校正由显示装置引起的某些类型的融合,几何形状,颜色和亮度错误,观看位置或两者的同时增强亮度和分辨率的系统。 该系统涉及将彩色CRT中的两个或多个源,重叠和偏移像素的图像或重叠的扫描线“合并光栅”合并在CRT或多个(3)“合并栅格”中,并且调整视频内容和定时,以补偿 当前的观看位置和/或设备失真。 显示和/或观看透视失真特征是从观察者对于光栅或每个非会聚光栅的观察位置进行测量,并作为校正因子数据存储在非易失性存储器中。 该数据用于修改视频图像存储器的数字寻址,读取和校正每个图像的像素数据,调整颜色,修改幅度,并在校正的幅度和图像数据的正确时间驱动显示器视频放大器。 在视频路径中进行这些更改可以显着提高图像质量和节省成本。

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