![]() You can easily tell if your phone uses one of these readers by seeing if the screen lights up under your finger when unlocking the phone. Thus the optical scanner saw a resurgence in popularity. The superior capacitive sensors can't go under your screen yet, and ultrasonic technology is still relatively new and expensive. But if that's such a concern, why have they become so popular in recent years? Modern smartphones, whether you like it or not, tend to hide their fingerprint scanners away under the display. While optical fingerprint readers are ( usually) fast, they aren't as secure as the others on this list. A few obscure handsets in the early 2000s may have used them, but they were quickly replaced with capacitive hardware. Despite being the oldest technology on this list, it only recently started to make its way into smartphones. As the name might suggest, an optical scanner is an imaging sensor that takes a 2D image of your fingerprint and uses algorithms to identify the unique patterns of your print.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |