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On Thursday the US Patent and Trademark Office published a patent application from Apple that seems to detail the integration of hidden audio sensors into the displays of upcoming devices.

Thus, according to Patently Apple, a display assembly could be built to detect audio waves.

This display assembly could include a screen and at least one electromagnetic energy emitter configured to direct energy at an inside surface of the screen.

According to the filing, at least one sensor could be configured to sense the emitted energy after it’s reflected back from the inside surface of the screen.

The invention could help Apple trim down iPhones, while integrating more advanced sensors.

Via Macworld