Device and method for biometric verification and registration of a persons identity by means of fingerprint information

• US 20040013288A1
• Filed: 07/10/2003
• Published: 01/22/2004
• Est. Priority Date: 03/15/2001
• Status: Active Grant

• Current Assignee: Fingerprint Cards IP AB
• Original Assignee: Fingerprint Cards AB
• Inventors: Sivertsson, Par, Svensson, Peter
• Granted Patent: US 7,330,571 B2
• Time in Patent Office: Days
• US Class Current: 382/124
• CPC Class Codes: G06V 40/1335 Combining adjacent partial images (e.g. slices) to create a composite input or reference pattern; Tracking a sweeping finger movement
• CPC Class Codes: G06V 40/1365 Matching; Classification

Abstract

The invention relates to a device for biometric verification of an individual'"'"'s identity by means of fingerprint information, comprising controller and memory means, means for consecutively reading, and storing in said memory means, fingerprint information from partial areas of a finger, and means for extracting, and storing in said memory means, verification data from fingerprint information read from a partial area, moreover comprising means for verification processing of the extracted verification data, the device also comprising decision-making means for deciding if fingerprint information from a new partial area has been read. At least those points in time when fingerprint information from a new partial area has been read are used by the controller means to update the contents of the memory means, said updating comprising removing fingerprint information from previously read partial areas, the controller means also updating the stored verification data on or before said points in time.

Claims

1. Device (200) for biometric verification of an individual'"'"'s identity by means of fingerprint information, comprising controller means (CPU), memory means, means (S) for consecutively reading, and storing in said memory means, fingerprint information from partial areas of a finger, and means (220) for extracting, and storing in said memory means, verification data from fingerprint information read from a partial area, moreover comprising means (230) for verification processing of the extracted verification data, the device also comprising decision-making means (220) for deciding if fingerprint information from a new partial area has been read, characterized in that at least those points in time when fingerprint information from a new partial area has been read are used by the controller means (CPU) to update the contents of the memory means of the device, said updating comprising removing fingerprint information from previously read partial areas, with the controller means also updating the stored verification data on or before said points in time.

2. Device according to claim 1, in which device all fingerprint information from previously read partial areas is removed upon said updating.

3. Device according to claim 1 or 2, in which device said decision-making means takes its decision only if fingerprint information from an entire new partial area has been read.

4. Device according to any of the previous claims, in which said updating of stored verification data comprises checking if any of the previously extracted and stored verification data should be exchanged for the verification information extracted most recently, in which case previously extracted verification data may be removed from the memory means of the device.