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    Method and system for automatically detecting an edge and width of a document utilizing a scanning system
    21.
    发明授权
    Method and system for automatically detecting an edge and width of a document utilizing a scanning system 失效
    使用扫描系统自动检测文档的边缘和宽度的方法和系统

    公开(公告)号：US6046828A

    公开(公告)日：2000-04-04

    申请号：US814050

    申请日：1997-03-06

    Applicant: Xiao-fan Feng ,  John C. Handley

    Inventor： Xiao-fan Feng ,  John C. Handley

    IPC: H04N1/04 ,  G06T7/60 ,  H04N1/00 ,  G06K9/48 ,  H04N1/40

    CPC classification number: H04N1/0071 ,  H04N1/00681 ,  H04N1/00737 ,  H04N1/00748 ,  H04N1/00753

    Abstract: A method and system automatically determines the width (i.e., left and right edges) of a document when it is loaded for scanning or copying. When a document is staged, the scanner collects a predetermined number scanlines of the leadedge of the document. Both first order and second order statistics of the scanner and document are then calculated based on the scanned data. The auto-width detection process is adaptive to CCD sensor output variation, document variation, and scanner variation, thus making it robust against dust in the sensor path and random fluctuations of the scanner.

    Abstract translation: 一种方法和系统自动确定文档在加载扫描或复制时的宽度（即左边缘和右边缘）。 当文档分段时，扫描器收集文档的引导线的预定数量的扫描线。 然后基于扫描数据计算扫描仪和文档的一阶和二阶统计。 自动宽度检测过程适用于CCD传感器输出变化，文档变化和扫描仪变化，从而使其对传感器路径中的灰尘和扫描仪的随机波动具有鲁棒性。

    Noise-compensated LCD display
    22.
    发明授权
    Noise-compensated LCD display 有权
    噪声补偿液晶显示屏

    公开(公告)号：US08947339B2

    公开(公告)日：2015-02-03

    申请号：US12655025

    申请日：2009-12-21

    Applicant: Xiao-fan Feng ,  Scott J. Daly

    Inventor： Xiao-fan Feng ,  Scott J. Daly

    IPC: G09G3/36 ,  G09G3/34

    CPC classification number: G09G3/3611 ,  G09G3/3426 ,  G09G2320/0646 ,  G09G2320/066 ,  G09G2360/16

    Abstract: A method for displaying an input image on a display includes receiving the input image to be displayed on the display. The image is modified with a first process to determine a driving signal for a two-dimensional backlight array of independently selectable light emitting elements of the display. The first modified image is modified with a second noise reducing process to determine a driving signal for a two-dimensional liquid crystal layer defining pixels of the display. The two-dimensional backlight array has a different density of light emitting elements than the two-dimensional liquid crystal layer defining the pixels of the display.

    Abstract translation: 用于在显示器上显示输入图像的方法包括接收要在显示器上显示的输入图像。 通过第一处理修改图像以确定用于显示器的独立可选择的发光元件的二维背光阵列的驱动信号。 通过第二降噪处理来修改第一修改图像，以确定用于限定显示器的像素的二维液晶层的驱动信号。 二维背光阵列具有与限定显示器的像素的二维液晶层不同的发光元件的密度。

    Liquid crystal display with black point modulation
    23.
    发明授权
    Liquid crystal display with black point modulation 有权
    带黑点调制的液晶显示器

    公开(公告)号：US08217890B2

    公开(公告)日：2012-07-10

    申请号：US12413259

    申请日：2009-03-27

    Applicant: Scott J Daly ,  Xiao-fan Feng

    Inventor： Scott J Daly ,  Xiao-fan Feng

    IPC: G09G3/36

    CPC classification number: G09G3/3426 ,  G09G3/3413 ,  G09G2320/0238 ,  G09G2320/0247 ,  G09G2320/0261 ,  G09G2320/0276 ,  G09G2320/062 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2330/10 ,  G09G2360/16

    Abstract: A backlit display with improved dynamic range. A first pixel is illuminated at a first non-zero illumination level during a first frame and a second non-zero illumination level during a second frame, immediately following the first frame. The second illumination level is greater than the first level. The first pixel is decreased in illumination to a level less than the first illumination level prior to illuminating the first pixel at the second illumination level during the second frame.

    Abstract translation: 具有改进动态范围的背光显示屏。 第一像素在第一帧期间的第一非零照明水平下被照亮，并且在第二帧期间紧跟在第一帧之后的第二非零照明水平。 第二个照明级别大于第一级。 在第二帧期间，第一像素在照明之前被降低至低于第一照明级别的水平，然后再以第二照明级别照亮第一像素。

    Methods and Systems for LED Backlight White Balance
    26.
    发明申请
    Methods and Systems for LED Backlight White Balance 有权
    LED背光白平衡方法与系统

    公开(公告)号：US20100079364A1

    公开(公告)日：2010-04-01

    申请号：US12242837

    申请日：2008-09-30

    Applicant: Xiao-fan Feng

    Inventor： Xiao-fan Feng

    IPC: G09G3/36

    CPC classification number: G09G3/3413 ,  G09G3/3426 ,  G09G2320/0233 ,  G09G2320/0666 ,  G09G2340/06 ,  G09G2360/145

    Abstract: Aspects of the present invention relate to systems and methods for performing white balance operations for an LED display backlight. Some aspects related to an iterative process wherein display backlight luminance and color are sampled at an intermediate resolution between the resolution of the LED backlight and the resolution of the LCD display. Some aspects relate to a process wherein r, g and b driving value differences are determined using a deconvolution technique.

    Abstract translation: 本发明的方面涉及用于执行LED显示器背光的白平衡操作的系统和方法。 与迭代过程相关的一些方面，其中以LED背光的分辨率和LCD显示器的分辨率之间的中间分辨率采样显示背光亮度和颜色。 某些方面涉及使用去卷积技术确定r，g和b驱动值差异的过程。

    Liquid crystal display with filtered black point
    29.
    发明授权
    Liquid crystal display with filtered black point 有权
    液晶显示器带过滤黑点

    公开(公告)号：US07532192B2

    公开(公告)日：2009-05-12

    申请号：US10966973

    申请日：2004-10-15

    Applicant: Xiao-fan Feng ,  Scott J. Daly

    Inventor： Xiao-fan Feng ,  Scott J. Daly

    IPC: G09G3/36

    CPC classification number: G09G3/3426 ,  G09G2320/0271 ,  G09G2320/062 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2360/16

    Abstract: A backlit display that displays an image having a luminance that is separated into a transmission component driving liquid crystal material and an illumination component driving a backlight, where the transmission component comprises at least 60% of the image luminance and the illumination component comprises less than 30% of the image luminance.

    Abstract translation: 一种背光显示器，其显示具有分离成驱动液晶材料的透射部件的亮度的图像和驱动背光的照明部件，其中所述透射部件包括图像亮度的至少60％，并且所述照明部件包括小于30 图像亮度的百分比。

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