Google has been granted a patent for driverless car technology, which can fully take over the control of a vehicle from a human driver.

This full-fat version of cruise control uses web functionality to trigger the automated driving tech, with one of the images which goes alongside the patent showcasing what seems to be a massive QR code embedded into a road.

It seems that once a driver of one of Google's automatic cars drives over the QR code – or reference indicator, as it is called in the patent – the car then takes over the controls.