Controlled access to functionality of a wireless device
First Claim
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1. An apparatus, comprising:
- an electronic device comprising a processor, a memory, and a camera, wherein the device is to;
obtain a first biometric measurement of a part of a person'"'"'s body;
initiate a physical change in the part;
obtain a second biometric measurement of the part subsequent to the change; and
verify that the second measurement is different than the first measurement,wherein the first biometric measurement is kept unpredictable to avoid anticipating the first and second biometric measurements, andwherein the physical change is kept unpredictable to avoid anticipating a subsequent physical change.
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Abstract
Various embodiments of the invention may be used to verify that a person being authorized by biometric techniques to use a device is a living person and not some form of recording intended to spoof the system. Some embodiments may try to cause a change in a measured biometric feature, and compare images taken before and after the change to verify the change occurred. In some embodiments, multiple stages of verification may be used, either to increase the difficulty of spoofing the security system, or to provide different levels of security for different levels of access to the device'"'"'s functionality.
16 Citations
23 Claims
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1. An apparatus, comprising:
an electronic device comprising a processor, a memory, and a camera, wherein the device is to; obtain a first biometric measurement of a part of a person'"'"'s body; initiate a physical change in the part; obtain a second biometric measurement of the part subsequent to the change; and verify that the second measurement is different than the first measurement, wherein the first biometric measurement is kept unpredictable to avoid anticipating the first and second biometric measurements, and wherein the physical change is kept unpredictable to avoid anticipating a subsequent physical change. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus, comprising:
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an electronic device comprising a processor, a memory, and a camera, wherein the device is to; illuminate an eye of a person with infrared light; measure infrared light reflected from a retina of the person'"'"'s eye; compare the infrared light reflected from the retina to a reference level; and determine the person is a living person based on the comparison, wherein determining further includes detecting blinking of an eyelid of the eye at least once during a predetermined time to confirm the person is a living person, and wherein detecting further includes comparing a blinking rate of the blinking with a living person'"'"'s standard blinking rate; wherein said reference level is selected from a list consisting of; infrared light reflected from at least one other part of the person'"'"'s face; infrared light reflected from the retina without said illuminating the eye. - View Dependent Claims (9, 10)
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11. A method, comprising:
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obtaining a first biometric measurement of a part of a person'"'"'s body; causing the part to physically change in a predetermined manner; obtaining a second biometric measurement of the part subsequent to the change; verifying that the second measurement is different than the first measurement in a manner expected from the physical change; and granting the person access to additional functionality of a device that is performing said obtaining and said verifying, if the person also passes an authorization procedure, wherein the first biometric measurement is kept unpredictable to avoid anticipating the first and second biometric measurements, and wherein the physical change is kept unpredictable to avoid anticipating a subsequent physical change. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. An article comprising:
least one non-transitory computer-readable medium that contains instructions, which when executed by one or more processors result in performing operations comprising; obtaining a first picture of a person'"'"'s eye; causing the eye to physically change in a predetermined manner; obtaining a second picture of the eye; verifying that the eye appears different in the second picture than in the first picture; and granting the person access to functionality of a device that is performing said obtaining and said verifying, if the person also passes an authorization procedure, wherein the first biometric measurement is kept unpredictable to avoid anticipating the first and second biometric measurements, and wherein the physical change is kept unpredictable to avoid anticipating a subsequent physical change. - View Dependent Claims (19, 20, 21, 22, 23)
Specification