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    • 4. 发明授权
    • Methods and apparatus for reordering data signals in fast fourier transform systems
    • 用于在快速傅里叶变换系统中重新排序数据信号的方法和装置
    • US08812819B1
    • 2014-08-19
    • US13212377
    • 2011-08-18
    • Martin LanghammerKellie Marks
    • Martin LanghammerKellie Marks
    • G06F12/00
    • G06F17/142
    • Data signal items output by a radix 4n2m fast Fourier transform (“FFT”) operation may not be in the order desired for further use of those data items (e.g., they may be output in a non-natural order rather than in a desired natural order). Memory circuitry (e.g., dual-port memory circuitry) may be used in conjunction with circuitry for addressing the memory circuitry with address signals that are reordered in a particular way for each successive set of N data items. This allows use of memory circuitry with fewer data item storage locations than would otherwise be required to reorder the data items from non-natural to natural order. In particular, the memory circuitry only needs to be able to store N data items at any one time, which is more efficient memory utilization than would otherwise be possible.
    • 通过基数4n2m快速傅立叶变换(“FFT”)操作输出的数据信号项可能不符合进一步使用这些数据项所需的顺序(例如,它们可以以非自然的顺序而不是以期望的自然顺序输出 订购)。 存储器电路(例如,双端口存储器电路)可以与电路一起使用,该电路用于以对于每个连续的N个数据项集合的特定方式重新排序的地址信号来寻址存储器电路。 这允许使用存储器电路与数据项存储位置相比,否则将重新排序数据项从非自然顺序到自然顺序。 特别地,存储器电路仅需要能够在任何一个时间存储N个数据项,这比其他情况下更有效的存储器利用。
    • 6. 发明申请
    • Apparatus and method for high performance data content processing
    • 用于高性能数据内容处理的装置和方法
    • US20060080467A1
    • 2006-04-13
    • US10927967
    • 2004-08-26
    • Stephen GouldErnest PeltzerSean CliftKellie MarksRobert Barrie
    • Stephen GouldErnest PeltzerSean CliftKellie MarksRobert Barrie
    • G06F15/16
    • G06F9/5005G06F2209/509
    • Incoming data streams are processed at relatively high speed for decoding, content inspection and classification. A multitude of processing channels process multiple data streams concurrently so as to allows networking based host systems to provide the data streams—as the packets carrying these data streams are received from the network—without requiring the data streams to be buffered. Moreover, host systems processing stored content, such as email messages and computer files, can process more than one stream at once and thereby make better utilization of the host system's CPU. Processing bottlenecks are alleviated by offloading the tasks of data extraction, inspection and classification from the host CPU. A content processing system which so processes the incoming data streams, is readily extensible to accommodate and perform additional data processing algorithms. The content processing system is configurable to enable additional data processing algorithms to be performed in parallel or in series.
    • 进入数据流以相对高的速度进行处理,用于解码,内容检查和分类。 多个处理通道同时处理多个数据流,以便允许基于网络的主机系统提供数据流,因为从网络接收携带这些数据流的分组,而不需要缓冲数据流。 此外,处理诸如电子邮件消息和计算机文件的存储内容的主机系统可以一次处理多个流,从而更好地利用主机系统的CPU。 通过从主机CPU卸载数据提取,检查和分类的任务,可以减轻处理瓶颈。 处理输入数据流的内容处理系统易于扩展以适应并执行附加的数据处理算法。 内容处理系统可配置为使得能够并行或串行地执行附加数据处理算法。