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Qualcomm's New Fingerprint Sensor Uses Ultrasonic Waves To Know Who You Are

ingerprint sensors have quickly become a staple of the modern smartphone. They're quick, simple to use, and (if encrypted properly) relatively secure.

Usually, these fingerprint scanners use images to determine the contours of a fingerprint. Qualcomm's new design, announced at CES, uses sound. The American chip manufacturer has harnessed ultrasonic waves to create 3D information about the user's fingerprint, called Sense ID.

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