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    • 7. 发明授权
    • Cell-based assay for immunodeficiency virus infectivity and sensitivity
    • 基于细胞的方法和测定免疫缺陷病毒的感染性和药物敏感性
    • US06797462B1
    • 2004-09-28
    • US09719340
    • 2001-04-13
    • John C. KappesXiaoyun Wu
    • John C. KappesXiaoyun Wu
    • C12Q170
    • G01N33/56988C12Q1/703G01N33/5091G01N2333/70514G01N2333/715
    • Methods and reagents for the capture of primary HIV are provided. A cell line expressing CCR5, CXCR4 and CD4 receptors binds and is infected by primary HIV. The cell line contains a marker gene sequence, the marker gene sequence expressed in near linear quantities over at least two orders of magnitude in response to HIV infection. Primary HIV is amplified to create a primary virus stock through insertion of an amplicon gene into the receptor expressing cell line. HIV amplification occurs rapidly and is operative with noninfectious HIV through amplification in the presence of an infectivity complement. The present invention is useful in determining host HIV titer, drug sensitivity, HIV amplification, gene sequencing and co-receptor utilization.
    • 提供了捕获初级艾滋病毒的方法和试剂。 表达CCR5,CXCR4和CD4受体的细胞系结合并被原发性HIV感染。 细胞系含有标记基因序列,标记基因序列以接近线性的数量表达,响应于HIV感染至少两个数量级。 通过将扩增子基因插入受体表达细胞系中,将主要的HIV扩增以产生初级病毒库。 HIV扩增快速发生,并通过在感染性补体存在下扩增而与非感染性HIV进行手术。 本发明可用于确定宿主HIV滴度,药物敏感性,HIV扩增,基因测序和辅助受体利用。
    • 10. 发明授权
    • Deinterlacing video images with slope detection
    • 用斜率检测去隔行视频图像
    • US07339626B2
    • 2008-03-04
    • US10862215
    • 2004-06-07
    • Hong JiangKim N. MatthewsLesley Jen-Yuan WuXiaoyun Wu
    • Hong JiangKim N. MatthewsLesley Jen-Yuan WuXiaoyun Wu
    • H04N7/01
    • H04N5/142H04N7/012
    • An apparatus and method for deinterlacing video images with improved slope detection is described. In one exemplary implementation, the apparatus includes an input buffer, a processor, and an output buffer. The input buffer is configured to receive a video stream in an interlaced format. The processor is configured to convert the video stream from the interlaced format to a progressive format. This conversion process includes calculating the slope for a diagonal line of an image at a pixel to-be-interpolated (i.e., at a missing pixel) using a slope protection operation to increase the accuracy of the slope calculation. The output buffer is then configured to transmit the video stream in the progressive format.
    • 描述了一种用于具有改进的斜率检测的用于去隔行视频图像的装置和方法。 在一个示例性实现中,该装置包括输入缓冲器,处理器和输出缓冲器。 输入缓冲器被配置为以隔行格式接收视频流。 处理器被配置为将视频流从隔行格式转换成渐进格式。 该转换处理包括使用斜率保护操作来计算要被内插的像素(即,在缺失像素处)的图像的对角线的斜率,以增加斜率计​​算的精度。 然后,输出缓冲器被配置为以逐行格式发送视频流。