The feature replaces the background of the text with a live video feed of whatever is in front of the user via the rear-view camera, reducing the likelihood of them tripping or bumping into obstacles while distracted.
The US patent, which was first filed in 2012, details the technology as: ""A user who is walking while participating in a text messaging session may inadvertently collide with or stumble over objects in his path because his attention was focused on his device's display instead of the path that he was traversing.
"Alternative embodiments of the invention can be applied to virtually any computer-executable application in which text is presented over a background."
The patent suggests the feature will be activated within a texting session at the press of a button, displaying the conversation as a series of transparent bubbles. Partial transparency was first introduced with the release of iOS 7 for actions including launching the Control Centre.
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