Data processing: measuring – calibrating – or testing – Measurement system – Measured signal processing
Reexamination Certificate
2002-04-24
2008-09-02
Barlow, John E. (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Measured signal processing
C702S189000, C341S155000, C704S205000, C704S222000, C704S229000
Reexamination Certificate
active
07421376
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 for containing a number of such thumbprints and methods for searching the database are also described.
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Caruso Jeffrey L.
Seet Nicholas
Yeager William S.
Auditude, Inc.
Barlow John E.
Fenwick & West LLP
Kundu Sujoy K
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