Digital beamformer having multi-phase parallel processing
    3.
    发明授权
    Digital beamformer having multi-phase parallel processing 失效
    具有多相并联处理的数字波束形成器

    公开(公告)号:US5369624A

    公开(公告)日:1994-11-29

    申请号:US37765

    申请日:1993-03-26

    CPC分类号: G10K11/34

    摘要: In accordance with the principles of the present invention, advantage is taken by the inventors of the fact that the speed of operation of the digital hardware in a digital beamformer having a plurality of parallel receiving channels can be reduced by providing multiple phases for the data signals supplied by each receiving channel and then processing the multi-phase data in N parallel summing paths. An interpolation-decimation filter receives the multi-phase data from the N parallel summing paths and provides at its output a signal having a reduced data rate (1/N). In accordance with this technique, the speed of operation of the individual digital circuits for forming the required beamforming delays are not increased as compared to conventional post-beamforming interpolation schemes, so that hereby the effective data rate is increased by a factor N and the delay quantization error is reduced by a factor N.

    摘要翻译: 根据本发明的原理,本发明人的优点是可以通过为数据信号提供多个相位来减少具有多个并行接收信道的数字波束形成器中的数字硬件的操作速度 由每个接收信道提供,然后在N个并行求和路径中处理多相数据。 插值抽取滤波器从N个并行求和路径接收多相数据,并在其输出端提供具有降低的数据速率(1 / N)的信号。 根据该技术,与传统的后波束形成插值方案相比,用于形成所需波束形成延迟的各个数字电路的操作速度没有增加,因此有效数据速率增加了因子N和延迟 量化误差降低了因子N.

    Weldable, crack-resistant co-based alloy, overlay method, and components
    4.
    发明授权
    Weldable, crack-resistant co-based alloy, overlay method, and components 有权
    可焊接,抗裂合成的合金,覆盖方法和部件

    公开(公告)号:US09051631B2

    公开(公告)日:2015-06-09

    申请号:US12669429

    申请日:2008-07-11

    IPC分类号: C22C19/07

    CPC分类号: C22C19/07

    摘要: A wear- and corrosion-resistant alloy, and related application method, where the alloy has by approximate weight %, C 0.12-0.7, Cr 20-30, Mo 7-15, Ni 1-4, and Co balance, wherein the alloy further contains one or more carbide-former elements from the group consisting of Ti, Zr, Hf, V, Nb, and Ta in a cumulative concentration to stoichiometrically offset between about 30% and about 90% of the C in the alloy.

    摘要翻译: 耐磨耐腐蚀合金及其相关应用方法,其中合金的重量百分比为C 0.12-0.7,Cr 20-30,Mo 7-15,Ni 1-4和Co平衡,其中合金 还含有一种或多种由Ti,Zr,Hf,V,Nb和Ta组成的组中的一种或多种碳化物形成元素,其累积浓度在化学计量上偏离合金中C的约30%至约90%之间。

    Substituting Embedded Text for Video Text Images
    5.
    发明申请
    Substituting Embedded Text for Video Text Images 审中-公开
    将嵌入式文本替换为视频文本图像

    公开(公告)号:US20120008693A1

    公开(公告)日:2012-01-12

    申请号:US13114906

    申请日:2011-05-24

    申请人: Kevin X. Yao

    发明人: Kevin X. Yao

    IPC分类号: H04N7/26

    摘要: During encoding, blank frames may be substituted for text images in video content, encoding the blank frames instead of the text images. The text images may be any kind of text images such as opening credits, ending credits, and so on. The selection of text images to substitute may be performed by optical character recognition, user selection and so on. The text associated with the text images may be embedded in the encoded video. If the text is already embedded, an indicator of the location may be added. If not, the text may be derived from the text image using optical character recognition and then embedded. When decoded, the encoded video may be analyzed to determine whether blank frames were substituted for text images. Embedded text associated with the text images may then be located, obtained, and added to the decoded video. Thus, the original text images are essentially reconstructed.

    摘要翻译: 在编码期间,空白帧可以代替视频内容中的文本图像,对空白帧而不是文本图像进行编码。 文本图像可以是任何种类的文本图像,例如开放信用,结束信用等。 可以通过光学字符识别,用户选择等来执行要替换的文本图像的选择。 与文本图像相关联的文本可以嵌入在编码视频中。 如果文本已经嵌入,则可以添加该位置的指示符。 如果不是,文本可以从文本图像导出,使用光学字符识别然后嵌入。 当解码时,可以分析编码视频以确定空白帧是否被替换为文本图像。 然后可以将与文本图像相关联的嵌入文本定位,获取并添加到解码的视频。 因此,原始文本图像基本上被重构。

    Optical communications based on optical polarization multiplexing and demultiplexing
    7.
    发明申请
    Optical communications based on optical polarization multiplexing and demultiplexing 有权
    基于光偏振复用和解复用的光通信

    公开(公告)号:US20050265728A1

    公开(公告)日:2005-12-01

    申请号:US11140456

    申请日:2005-05-27

    申请人: X. Yao

    发明人: X. Yao

    IPC分类号: H04B10/00 H04J14/06

    CPC分类号: H04J14/06

    摘要: This application describes techniques for optical multiplexing and demultiplexing in optical communication systems based on polarization multiplexing of different signal channels.

    摘要翻译: 本申请描述了基于不同信号信道的偏振复用的光通信系统中的光复用和解复用技术。