Recently, Apple has obtained a new patent. In the future, iPhone, iPad Pro, Apple Watch and other products may re-join the Touch ID unlocking function together with Face ID.
According to foreign media reports, the patent uses a technology called beamforming (Beamforming), which can scan fingerprints with ultrasonic waves regardless of whether the surface of the electronic device is flat or curved. In addition to improving the overall image accuracy, this technology can also automatically reduce carrier noise and improve the overall signal-to-noise ratio (SNR).
In many examples of patent documents, this acoustic imaging system is located behind the screen of the electronic device. When the user touches the screen, the user’s fingerprint can also penetrate the screen for imaging, so the waterproof performance will not be affected. In addition, acoustic imaging systems can also be positioned in areas such as keys, crowns, etc.
In addition, the new technology can overcome the shape of the casing, even if the curved surface of the Apple Watch can also be scanned effectively, it can also be integrated into the physical buttons. It is predicted that the new technology may be used under the screen of the Apple Watch in the future, or on the side of the iPhone.
source:breakinglatest
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