Invention Grant
US08392148B2 Comparison of data signals using characteristic electronic thumbprints extracted therefrom 有权
使用从中提取的特征电子指纹图来比较数据信号

Comparison of data signals using characteristic electronic thumbprints extracted therefrom
Abstract:
A characteristic thumbprint is extracted from a data signal, the thumbprint based on statistics relating to the data signal. The data signal can be compared indirectly by matching this thumbprint against one or more reference thumbprints. The data signal may be any type of signal, including streaming digitized audio or obtained from static files. A database may contain a number of these characteristic thumbprints, and the database can be searched for a particular thumbprint.
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