Verification techniques for biometric identification systems
First Claim
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1. A living tissue determination device, comprising:
- an antenna arranged in proximity to a sensor;
first circuitry for detecting at least one characteristic of an electrical circuit including the antenna and an object proximate the sensor; and
second circuitry for determining whether the object comprises living tissue with reference to the at least one characteristic.
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Abstract
Methods and apparatus are described for determining whether an object comprises living tissue. An antenna is provided which is operable to form an electrical circuit with the object. Detection circuitry is provided which is operable to detect at least one parameter corresponding to the electrical circuit. Determination circuitry is provided which is operable to determine whether the object comprises living tissue with reference to the at least one parameter.
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Citations
27 Claims
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1. A living tissue determination device, comprising:
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an antenna arranged in proximity to a sensor;
first circuitry for detecting at least one characteristic of an electrical circuit including the antenna and an object proximate the sensor; and
second circuitry for determining whether the object comprises living tissue with reference to the at least one characteristic. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for determining whether an object in proximity to a sensor comprises living tissue, the method comprising:
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arranged arranging an antenna in proximity to a sensor;
detecting at least one characteristic of an electrical circuit including the antenna and the object; and
determining whether the object comprises living tissue with reference to the at least one characteristic.
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16. A device for determining whether an object comprises living tissue, comprising:
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an antenna operable to form an electrical circuit with the object;
detection circuitry operable to detect at least one parameter corresponding to the electrical circuit; and
determination circuitry operable to determine whether the object comprises living tissue with reference to the at least one parameter. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification