A method and apparatus for fingerprint recognition is provided. A fingerprint is detected on a sensor. The fingerprint is digitized. A digitized background is subtracted from the fingerprint, resulting in a difference print. The difference print is matched with a database of fingerprint templates. ...http://www.google.fr/patents/US20010040987?utm_source=gb-gplus-shareBrevet US20010040987 - FINGERPRINT RECOGNITION SYSTEM
Numéro de demande: 09/470,097 Numéro de publication: US 2001/0040987 A1 Date de dépôt: 21 déc. 1999 Brevet délivré: US6741729 ( Date de délivrance 25 mai 2004)