The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 2009
Filed:
Aug. 31, 2004
Eric Allamanche, Nuremberg, DE;
Juergen Herre, Buckenhof, DE;
Oliver Hellmuth, Erlangen, DE;
Thorsten Kastner, Stockheim/Reitsch, DE;
Markus Cremer, Ilmenau, DE;
Eric Allamanche, Nuremberg, DE;
Juergen Herre, Buckenhof, DE;
Oliver Hellmuth, Erlangen, DE;
Thorsten Kastner, Stockheim/Reitsch, DE;
Markus Cremer, Ilmenau, DE;
M2ANY GmbH, Garching, DE;
Abstract
An apparatus for producing a fingerprint signal from an audio signal includes a means for calculating energy values for frequency bands of segments of the audio signal which are successive in time, so as to obtain, from the audio signal, a sequence of vectors of energy values, a means for scaling the energy values to obtain a sequence of scaled vectors, and a means for temporal filtering of the sequence of scaled vectors to obtain a filtered sequence which represents the fingerprint, or from which the fingerprint may be derived. Thus, a fingerprint is produced which is robust against disturbances due to problems associated with coding or with transmission channels, and which is especially suited for mobile radio applications.