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    • 12. 发明申请
    • Tuning filters having transconductor cells
    • 具有跨导电池的调谐滤波器
    • US20050151582A1
    • 2005-07-14
    • US10755937
    • 2004-01-13
    • James BaileyRobert Chen
    • James BaileyRobert Chen
    • H03B1/00H03H11/12H03L7/00
    • H03L7/00H03H11/0455H03H11/0472H03H11/1291
    • In one embodiment, a filter with a main signal path having one or more biquadratic filter sections is tuned using a tuning circuit based on a biquadratic filter that can be configured to oscillate at the filter's cutoff frequency. In one application, a tuning circuit outside of the main signal path is used to tune each biquadratic filter section of the main signal path. In another application, each filter section along the main signal path has a biquadratic filter that can oscillate and corresponding tuning elements that enable the filter section to tune itself. According to certain embodiments of the present invention, a biquadratic filter is made to oscillate by applying a common-mode voltage signal to the inputs of the filter's third transconductor cell to make the cell's transconductance go to zero. The invention may also be implemented in the context of filters having ladder structures in their main signal path.
    • 在一个实施例中,具有一个或多个双二次滤波器部分的主信号路径的滤波器使用基于可被配置为以滤波器的截止频率振荡的双二次滤波器的调谐电路来调谐。 在一个应用中,主信号路径之外的调谐电路用于调谐主信号路径的每个双二次滤波器部分。 在另一个应用中,沿着主信号路径的每个滤波器部分具有可以振荡的双二次滤波器和使得滤波器部分能够调谐自身的相应的调谐元件。 根据本发明的某些实施例,通过将共模电压信号施加到滤波器的第三跨导电池的输入端使得二次过滤器振荡以使单元的跨导变为零。 本发明还可以在其主信号路径中具有梯形结构的滤波器的上下文中实现。
    • 14. 发明申请
    • FILE RETRIEVAL FROM MULTIPLE STORAGE LOCATIONS
    • 多个存储位置的文件检索
    • US20150169620A1
    • 2015-06-18
    • US14133480
    • 2013-12-18
    • Johannes P. SchmidtKevin ShenJames Bailey
    • Johannes P. SchmidtKevin ShenJames Bailey
    • G06F17/30
    • G06F17/30194H04L67/1097H04L67/327
    • In embodiments, apparatuses, methods and storage media are described that are associated with retrieval of a file stored at multiple storage locations, such as a content file. A file retrieving device may receive an identifier of multiple storage locations from which a file may be downloaded, including content delivery networks and distinct storage servers at a particular content delivery network. The decoder may retrieve portions of the file from the different indicated storage locations. The file retrieving device may be configured to assign portion sizes to various storage locations based on a history of bandwidth experienced from the various storage locations. The file retrieving device may be configured to dynamically manage retrieval of portions of the file from the multiple storage locations, such as by re-assigning a slow or stalled portion from one storage location to a faster or underutilized storage locations. Other embodiments may be described and claimed.
    • 在实施例中,描述了与在诸如内容文件的多个存储位置存储的文件的检索相关联的装置,方法和存储介质。 文件检索装置可以从特定内容传送网络接收可以从其下载文件的多个存储位置的标识符,包括内容传送网络和不同的存储服务器。 解码器可以从不同的指示的存储位置检索文件的部分。 文件检索装置可以被配置为基于从各种存储位置经历的带宽的历史来将部分大小分配给各种存储位置。 文件检索装置可以被配置为动态地管理从多个存储位置检索文件的部分,例如通过将缓慢或停止的部分从一个存储位置重新分配给更快或未充分利用的存储位置。 可以描述和要求保护其他实施例。
    • 18. 发明申请
    • Integer square root algorithm for use in digital image processing
    • 用于数字图像处理的整数平方根算法
    • US20070106719A1
    • 2007-05-10
    • US11269013
    • 2005-11-08
    • James BaileyDavid CrutchfieldZachary Fister
    • James BaileyDavid CrutchfieldZachary Fister
    • G06F7/552
    • G06F7/5525
    • An integer square root calculation technique determines the precise root of an input value to determine the distance between data points such as pixels in a digital image. The technique avoids division and floating point multiplication steps. An initial root estimate may be used as a seed value beginning an iterative convergence towards the final solution. A scaled error may be determined by bit shifting an error difference between a square of the root estimate and the input value. Depending on whether the scaled error satisfies a predetermined condition, the current square root estimate may be adjusted by a bit-shifted fraction of the scaled error and the scaled error is then recalculated. In certain instances, a final adjustment to the root estimate may be implemented to yield the precise square root value. Ultimately, the final root estimate may be assigned to an output value representing the desired distance.
    • 整数平方根计算技术确定输入值的精确根,以确定数字图像之间的数据点(例如像素)之间的距离。 该技术避免了分割和浮点乘法步骤。 初始根估计可以用作开始向最终解的迭代收敛的种子值。 可以通过比特移位根估计的平方和输入值之间的误差来确定缩放误差。 根据缩放误差是否满足预定条件,可以通过缩放误差的位移分数来调整当前平方根估计,然后重新计算缩放误差。 在某些情况下,可以实施对根估计的最终调整以产生精确的平方根值。 最终,可以将最终根估计值分配给表示期望距离的输出值。