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    • 34. 发明申请
    • Non-Parametric Measurement of Media Fingerprint Weak Bits
    • 媒体指纹弱位的非参数测量
    • US20120011128A1
    • 2012-01-12
    • US13173462
    • 2011-06-30
    • Junfeng HeRegunathan RadhakrishnanWenyu Jiang
    • Junfeng HeRegunathan RadhakrishnanWenyu Jiang
    • G06F17/30
    • G06F17/30023
    • A value is computed for a feature in an instance of query content and compared to a threshold value. Based on the comparison, first and second bits in a hash value, which is derived from the query content feature, are determined. Conditional probability values are computed for the likelihood that quantized values of the first and the second bits equal corresponding quantized bit values of a target or reference feature value. The conditional probabilities are compared and a relative strength determined for the first and second bits, which directly corresponds to the conditional probability. The bit with the lowest bit strength is selected as the weakbit. The value of the weakbit is toggled to generate a variation of the query hash value. The query may be extended using the query hash value variation.
    • 为查询内容的实例中的要素计算一个值,并与阈值进行比较。 基于比较,确定从查询内容特征导出的哈希值中的第一和第二比特。 对于第一和第二比特的量化值等于目标或参考特征值的相应量化比特值的可能性,计算条件概率值。 比较条件概率,并确定第一和第二位的相对强度,其直接对应于条件概率。 选择具有最低位强度的位作为弱位。 切换弱点的值以生成查询哈希值的变体。 可以使用查询哈希值变化来扩展查询。
    • 35. 发明申请
    • Error correction in packet-based communication networks using data consistency checks
    • 使用数据一致性检查在基于分组的通信网络中进行纠错
    • US20070089037A1
    • 2007-04-19
    • US11242435
    • 2005-09-29
    • Wenyu Jiang
    • Wenyu Jiang
    • H03M13/00
    • H04L1/0045H04L1/18
    • Bit errors in packets of data that are communicated in a network such as a wireless network can be corrected by processes that do not require any overhead in the data such as conventional error-detection codes or redundant information such as conventional error-correction codes. A validation-set process compares corrupted data against values in a set of known valid values and selects one of the known valid values to replace the corrupted data. A consistency-check process uses data correlation characteristics of two or more parameters to determine if values obtained from a packet are consistent with one another. If not, values are changed to make them consistent.
    • 在诸如无线网络的网络中传送的数据的数据包中的位错误可以通过不需要诸如常规错误检测码或诸如常规纠错码的冗余信息的数据中的任何开销的处理来校正。 验证集过程将损坏的数据与一组已知有效值中的值进行比较,并选择一个已知有效值来替换损坏的数据。 一致性检查过程使用两个或多个参数的数据相关特征来确定从数据包获得的值是否彼此一致。 如果没有,值被改变以使它们保持一致。