This invention describes a system for an electronic device, such as a mobile phone, to continuously verify if the person using it is the authorized owner. It uses the device's built-in sensors to collect data about how it's being handled or interacted with. This collected data is then compared against a known profile of the owner, and if the match isn't strong enough, the device can restrict access to certain functions or perform a security action. The claims specifically detail using sensor data for user authentication.
Why it matters: Filed before widespread on-device machine learning and advanced sensor fusion were common. Today, mobile devices have powerful processors and sophisticated ML frameworks that can continuously analyze diverse sensor data for real-time authentication with high accuracy.
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