| US 7,460,994 B2 | ||
| Method and apparatus for producing a fingerprint, and method and apparatus for identifying an audio signal | ||
| Jürgen Herre, Buckenhof (Germany); Eric Allamanche, Nürnberg (Germany); Oliver Hellmuth, Erlangen (Germany); Thorsten Kastner, Stockheim/Reitsch (Germany); and Markus Cremer, Ilmenau (Germany) | ||
| Assigned to M2ANY GmbH, Garching (Germany) | ||
| Appl. No. 10/483,452 PCT Filed Jun. 20, 2002, PCT No. PCT/EP02/06849 § 371(c)(1), (2), (4) Date Jan. 08, 2004, PCT Pub. No. WO03/007185, PCT Pub. Date Jan. 23, 2003. |
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| Claims priority of application No. 101 33 333 (DE), filed on Jul. 10, 2001. | ||
| Prior Publication US 2004/0172411 A1, Sep. 02, 2004 | ||
| Int. Cl. G10L 15/00 (2006.01) | ||
| U.S. Cl. 704—231 [704/205] | 18 Claims |
| 1. A method for producing a fingerprint of an audio signal using information defining a plurality of predetermined fingerprint
modi, all of the fingerprint modi relating to the same type of fingerprint, the fingerprint modi, however, providing different
fingerprints differing from each other with regard to their data volume, on the one hand, and to their characterizing strength
for characterizing the audio signal, on the other hand, the fingerprint modi being predetermined such that a fingerprint in
accordance with a fingerprint modus having a first characterizing strength is convertible to a fingerprint in accordance with
a fingerprint modus having a second characterizing strength, without using the audio signal, the method comprising:
setting a predetermined fingerprint modus of the plurality of predetermined fingerprint modi; and
computing a fingerprint in accordance with the set predetermined fingerprint modus.
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