The system uses a series of acoustic transmitters that are located under a part of the screen surface of a mobile device.

Apple has developed its own screen fingerprint reader for mobile devices, which has the particularity that it allows to identify a user through a system based on sound.

As shown in a patent filed by Apple in the US office of powerhouses, the system uses a series of acoustic transmitters that are located under a part of the screen surface of a mobile device.

Through the system, the surface detects when an object comes into contact with it, which allows it to act as a fingerprint reader. Sound transmitters convert the sound signal into a processable electrical signal.

When operating through sound, the system provides support to operate in a wider area of the screen than traditional screen sensors. In addition, it can mean lower consumption in terms of processing power, as pointed out by Apple Insider.

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