Method for biometric authentication through layering biometric traits
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United States of America Patent
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May 19, 2009
Grant Date -
Sep 26, 2002
app pub date -
Mar 22, 2001
filing date -
Mar 22, 2001
priority date (Note) -
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Abstract
A portable biometric authentication system having a single technology for measuring multiple, varied biological traits to provide individual authentication based on a combination of biological traits. At least one of these biometric traits is a live physiological trait, such as a heartbeat waveform, that is substantially-but not necessarily completely-unique to the population of individuals. Preferably, at least one of the identifying aspects of the biological traits is derived from a measurement taken by reflecting light off of the subdermal layers of skin tissue.
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