Furthermore, the fingerprint reading tech Apple describes in the patent could offer even faster and more accurate readings than the current Touch ID sensor, which is already best-in-class.
In this type of sensor, two transducers are placed on the x- and y-axes of a plate of glass–one each for receiving and transmitting–for propagating ultrasound waves through a glass plate; when the finger is placed on top of the glass, the finger impedes the waves and the receiving transducer can measure the alteration in wave patterns, the patent explains.
With the help of these new technologies, Apple could also combat various hacks used to unlock an iPhone after stealing the owner s fingerprints.
But the patent does prove that Apple is indeed working to ditch the home button and increase the phone s screen-to-overall-size ratio.
On a device where size and weight are limited, the addition of this module can be costly, Apple explains in the patent.
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