Smartphone sensors that can recognize your fingerprint and your face are already becoming commonplace, but Amazon could have an entirely fresh take on the biometrics trend.
A recent patent from the e-commerce giant suggests the company is considering an ear-scanning security feature for future devices.
The concept was submitted way back in 2011, but only approved last week by the U.S. patent office. It describes a system in which a front-facing camera could use photo or video to analyze your ear and unlock a device automatically.
This could be particularly handy if you get a call or any other situation where you need to quickly lift your phoneup to your ear. Most of the time, however, this gimmick might not actually be very useful.
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