Controlled access to functionality of a wireless device
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United States of America Patent
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May 3, 2016
Issued Date -
N/A
app pub date -
Oct 5, 2015
filing date -
Jun 16, 2009
priority date (Note) -
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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.
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