Digital Signatures
    1.
    发明申请
    Digital Signatures 有权
    数字签名

    公开(公告)号:US20120002806A1

    公开(公告)日:2012-01-05

    申请号:US13228200

    申请日:2011-09-08

    Abstract: Digital signature generation apparatus, comprising an envelope generator operable to generate an envelope representation, of only one polarity, of a sampled data segment, and operable for each of successive portions comprising a predetermined plurality of samples to provide a portion sum value as the sum the values of the samples in the portion, thereby to provide said envelope representation; a threshold value generator operable to determine a threshold value for each portion of the envelope representation; an event detector operable to detect, as an event, a transition of a portion sum value across the threshold value for the portion concerned; and a signature generator operable in response a detected event to generate a digital signature characteristic of the sampled data segment.

    Abstract translation: 一种数字签名生成装置,包括一个包围生成器,可操作用于产生一个采样数据段只有一个极性的包络表示,并且可用于包括预定多个样本的每个连续部分,以提供部分和值作为和 该部分中的样本的值,从而提供所述包络表示; 阈值发生器,用于确定所述包络表示的每个部分的阈值; 事件检测器,可操作来作为事件检测跨越所述部分的阈值的部分和值​​的转变; 以及签名生成器,用于响应于检测到的事件而产生采样数据段的数字签名特征。

    Digital signatures
    2.
    发明授权
    Digital signatures 有权
    数字签名

    公开(公告)号:US08769294B2

    公开(公告)日:2014-07-01

    申请号:US13228200

    申请日:2011-09-08

    Abstract: Digital signature generation apparatus, comprising an envelope generator operable to generate an envelope representation, of only one polarity, of a sampled data segment, and operable for each of successive portions comprising a predetermined plurality of samples to provide a portion sum value as the sum the values of the samples in the portion, thereby to provide said envelope representation; a threshold value generator operable to determine a threshold value for each portion of the envelope representation; an event detector operable to detect, as an event, a transition of a portion sum value across the threshold value for the portion concerned; and a signature generator operable in response a detected event to generate a digital signature characteristic of the sampled data segment.

    Abstract translation: 一种数字签名生成装置,包括一个包围生成器,可操作用于产生一个采样数据段只有一个极性的包络表示,并且可用于包括预定多个样本的每个连续部分,以提供部分和值作为和 该部分中的样本的值,从而提供所述包络表示; 阈值发生器,用于确定所述包络表示的每个部分的阈值; 事件检测器,可操作来作为事件检测跨越所述部分的阈值的部分和值​​的转变; 以及签名生成器,用于响应于检测到的事件而产生采样数据段的数字签名特征。

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