Biometric system and techniques suitable therefor
First Claim
1. A biometric method eliciting a migrating biometric characteristic from individuals, the method comprising:
- storing at least first and second templates of at least one migrating biometric characteristic for each of a population of individuals, said first template being a reference sample of an individual'"'"'s biometric characteristic and said second template being initially derived from said first template; and
comparing an individual'"'"'s first and second templates to a fresh sample provided by the individual and, if the fresh sample is found to sufficiently resemble the first and second templates, modifying the second template to take into account differences between the reference sample and the fresh sample.
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Abstract
This invention discloses a biometric method eliciting a migrating biometric characteristic from individuals, the method including storing at least first and second templates of at least one migrating biometric characteristic for each of a population of individuals, the first template being a reference sample of an individual'"'"'s biometric characteristic and the second template being initially derived from the first template, and comparing an individual'"'"'s first and second templates to a fresh sample provided by the individual and, if the fresh sample is found to sufficiently resemble the first and second templates, modifying the second template to take into account differences between the reference sample and the fresh sample.
A biometric system eliciting a migrating biometric characteristic from individuals is also disclosed.
266 Citations
15 Claims
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1. A biometric method eliciting a migrating biometric characteristic from individuals, the method comprising:
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storing at least first and second templates of at least one migrating biometric characteristic for each of a population of individuals, said first template being a reference sample of an individual'"'"'s biometric characteristic and said second template being initially derived from said first template; and
comparing an individual'"'"'s first and second templates to a fresh sample provided by the individual and, if the fresh sample is found to sufficiently resemble the first and second templates, modifying the second template to take into account differences between the reference sample and the fresh sample.
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2. A biometric system eliciting a migrating biometric characteristic from individuals, the system comprising:
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a biometric information repository storing at least first and second templates of at least one migrating biometric characteristic for each of a population of individuals, said first template being a reference sample of an individual'"'"'s biometric characteristic and said second template being initially derived from said first template; and
a repository keeper operative to compare an individual'"'"'s first and second templates to a fresh sample provided by the individual and, if the fresh sample is found to sufficiently resemble the first and second templates, to modify the second template to take into account differences between the reference sample and the fresh sample. - View Dependent Claims (10)
an item of information known to an individual;
an article possessed by an individual; and
a physiological feature of an individual.
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3. A secured biometric device eliciting a biometric characteristic from individuals, the system comprising:
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a biometric information repository storing a biometric information file for each of a population of individuals, each biometric information file of a particular individual comprising;
a representation of a sample of at least one biometric characteristic; and
enrollment operator identification information identifying the enrollment operator who presided over elicitation of said sample from said individual. - View Dependent Claims (11)
an item of information known to an individual;
an article possessed by an individual; and
a physiological feature of an individual.
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4. A secured biometric method eliciting a biometric characteristic from individuals, the method comprising:
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providing a biometric information repository;
storing, in the repository, a biometric information file for each of a population of individuals, each biometric information file of a particular individual comprising;
a representation of a sample of at least one biometric characteristic; and
enrollment operator identification information identifying the enrollment operator who presided over elicitation of said sample from said individual; and
retrieving said biometric information in order to make decisions regarding the individuals.
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5. A digital decision making system comprising:
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a portable digital information receptacle; and
an information receptacle terminal operative to carry out an interaction with the portable digital information receptacle and to make a decision based on said interaction, wherein said interaction includes a clear portion and a protected portion and wherein said clear portion includes only a declaration on the part of the terminal of its identity. - View Dependent Claims (6, 7, 8, 9)
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12. A digital decision making method comprising:
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providing a portable digital information receptacle; and
carrying out an interaction between the portable receptacle and an information receptacle terminal, thereby allowing the terminal to make a decision based on said interaction, wherein said interaction includes a clear portion and a protected portion and wherein said clear portion includes only a declaration on the part of the terminal of its identity.
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13. A biometric system comprising:
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a multiplicity of smart cards storing a multiplicity of biometric templates respectively identifying a multiplicity of persons respectively;
wherein each of the smart cards is operative to receive a biotest and to perform a decision process to determine whether the biotest should be accepted as identifying the person associated with the smart card. - View Dependent Claims (14, 15)
thereby defining an interface between the smart card and the terminal, and wherein data identifying the smart card, the person associated therewith and the interactions never appears in the clear in said interface between the smart card and the terminal.
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Specification