Look up. Now down. Back up here again. Imagine having to do that every time you wanted to unlock your phone, as this granted Google patent for "Unlocking a screen using eye tracking information" possibly suggests. Okay, it actually looks more like it's intended for the firm's super spectacles - which given their general hands-free nature - makes more sense. The claims are fairly straightforward, unlocking of a device would be granted based on "determining that a path associated with the eye movement substantially matches a path of the moving object".
Engadget , Google gets patent for eye tracking-based unlock system, shifty looks get you access, Google gets patent for eye tracking-based unlock system, shifty looks get you access
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