SYSTEM FOR BIOMETRIC IDENTITY CONFIRMATION
First Claim
1. A method for biometric identity confirmation of a subject having a pulse and a respiratory cycle, said method comprising:
- during an initial training mode, simultaneously acquiring pulse wave shape data and spirometric data from a known subject;
generating and storing subject characterization data for the known subject derived at least in part from both the pulse wave shape data and spirometric data for the known subject by;
(a) computing an exemplar from the pulse wave shape data and spirometric data for the known subject during the initial training mode; and
(b) selectively weighting portions of the exemplar; and
during a subsequent identity authentication mode, simultaneously acquiring pulse wave shape data and spirometric data from a test subject, and analyzing the pulse wave shape data and spirometric data with the subject characterization data for the known subject to confirm whether the identity of the test subject matches the known subject.
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Accused Products
Abstract
A biometric identity confirmation system is based on both pulse wave shape data and spirometric data for the subject. During an initial enrollment mode, pulse wave shape and spirometric data for a known subject are used to generate subject characterization data for the known subject by computing an exemplar and selectively weighting portions of the exemplar based, for example, on repeatability or distinguishing characteristic features over the population of known subjects. During a subsequent identity authentication mode, pulse wave shape and spirometric data for a test subject are analyzed using the subject characterization data to confirm whether the identity of the test subject matches the known subject.
6 Citations
12 Claims
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1. A method for biometric identity confirmation of a subject having a pulse and a respiratory cycle, said method comprising:
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during an initial training mode, simultaneously acquiring pulse wave shape data and spirometric data from a known subject; generating and storing subject characterization data for the known subject derived at least in part from both the pulse wave shape data and spirometric data for the known subject by; (a) computing an exemplar from the pulse wave shape data and spirometric data for the known subject during the initial training mode; and (b) selectively weighting portions of the exemplar; and during a subsequent identity authentication mode, simultaneously acquiring pulse wave shape data and spirometric data from a test subject, and analyzing the pulse wave shape data and spirometric data with the subject characterization data for the known subject to confirm whether the identity of the test subject matches the known subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification