Biometric authentication system and biometric sensor configured for single user authentication
First Claim
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1. A method of controlling access by a user to a portable electronic device, the portable electronic device including a biometric sensor integrated thereon, the method comprising:
- an enrollment procedure comprisingcapturing initial user input provided by the user using the biometric sensor operating in accordance with a sensing parameter and deriving initial biometric data from the initial user input, wherein the biometric sensor comprises a transducer that converts a biological signal into an electrical or mechanical signal, and the sensing parameter defines at least one characteristic of the conversion,analyzing the initial biometric data in relation to the sensing parameter and adjusting the sensing parameter on the basis of analyzed initial biometric data,capturing subsequent user input provided by the user using the biometric sensor operating in accordance with the adjusted sensing parameter and deriving subsequent biometric data from the subsequent user input,generating template information from the subsequent biometric data and storing the template information in the portable electronic device, andstoring sensing parameter information indicative of the adjusted sensing parameter in the portable electronic device; and
using the stored template information and the biometric sensor operating in accordance with the stored sensing parameter information to authenticate access by the user to the portable electronic device.
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Abstract
A biometric authentication system includes a biometric sensor configured for single user authentication. The biometric sensor can be configured for single user authentication through an enrollment procedure in which one or more sensing parameters are adjusted based on unique characteristics of the user. Thereafter, the user can be authenticated by capturing biometric data using the adjusted sensing parameters and comparing the captured biometric data against stored template data.
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Citations
18 Claims
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1. A method of controlling access by a user to a portable electronic device, the portable electronic device including a biometric sensor integrated thereon, the method comprising:
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an enrollment procedure comprising capturing initial user input provided by the user using the biometric sensor operating in accordance with a sensing parameter and deriving initial biometric data from the initial user input, wherein the biometric sensor comprises a transducer that converts a biological signal into an electrical or mechanical signal, and the sensing parameter defines at least one characteristic of the conversion, analyzing the initial biometric data in relation to the sensing parameter and adjusting the sensing parameter on the basis of analyzed initial biometric data, capturing subsequent user input provided by the user using the biometric sensor operating in accordance with the adjusted sensing parameter and deriving subsequent biometric data from the subsequent user input, generating template information from the subsequent biometric data and storing the template information in the portable electronic device, and storing sensing parameter information indicative of the adjusted sensing parameter in the portable electronic device; and using the stored template information and the biometric sensor operating in accordance with the stored sensing parameter information to authenticate access by the user to the portable electronic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of controlling access to a portable electronic device owned by a single user, the portable electronic device including a biometric sensor integrated thereon, the method comprising:
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generating biometric data corresponding to user input from the single user, the user input being captured by the biometric sensor; and comparing the biometric data with template information for the single user stored in the portable electronic device, wherein the comparing of the biometric data and template information is made based on sensing parameter information stored in the portable electronic device, wherein the sensing parameter information is related to a sensing parameter that controls operation of the biometric sensor and that has been previously derived during an enrollment procedure from user input from the single user as iteratively captured by the biometric sensor, wherein the biometric sensor comprises a transducer that converts a biological signal into an electrical or mechanical signal, and the sensing parameter defines at least one characteristic of the conversion, and wherein each iterative capture of the user input by the biometric sensor being made in accordance with a different value of the sensing parameter. - View Dependent Claims (12, 13, 14)
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15. A method of controlling access by a user to a portable electronic device, the portable electronic device including a biometric sensor integrated thereon, the method comprising:
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capturing user input provided by the user using the biometric sensor operating in accordance with a sensing parameter that has been calibrated during an enrollment procedure according to calibration biometric data provided by the user, wherein the biometric sensor comprises a transducer that converts a biological signal into an electrical or mechanical signal, and the sensing parameter defines at least one characteristic of the conversion; deriving authentication biometric data from the user input; authenticating the user to the portable electronic device based on a comparison between the authentication biometric data and stored template information associated with the user; and as a consequence of authenticating the user to the portable electronic device, updating the template information according to the authentication biometric data. - View Dependent Claims (16, 17, 18)
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Specification