Selasa, 20 November 2018

Fingerprint Scanner

In the real world, technology a fingerprint scanner or fingerprint recognition actually  Have a lot of used as a “fortres”data important. Security system is not easy to be replaced, because there is no human being has a fingerprint scanner. Technology fingerprint developed the first time for the sake of Committee Federal Bureau ( the FBI ) in the United States. 



      On the FBI 1969 in collaboration with the Institute of the National Standard and Technology ( NIST ) makes the system of identification based fingerprint scanner. Six years later, protitipe first also exhibited the institution.  A simple fingerprint working with “record” fingerprints someone, then save the pattern of his trademark. Identification done with matching data that has been stored. If it was the same, access automatic open.

      The question, how the a “read” patterns fingerprints? The fingerprint is composed of many lines stand out that tend to be circular-circumference. This can be seen clearly, only when we make a print using the ink for official letters.From there it can be seen, a fingerprint only has a lot of intricate patterns. If all pattern is used, the process of fingerprint identification would take too long. On the contrary, if the patterns are drawn too simple, the possibility of scanning is less accurate.

      To scan, the machine requires a sensor. The type of sensor is also diverse. Optical or optical fingerprint imaging, for example, utilizing the light when recording fingerprint patterns. A finger laid on top of a scanner usually made of glass. Then, from the bottom of the scanner, the transmitter of the light illuminating the surface of the tip of the finger. Reflected light is then captured tool receiver, so that the photo the fingerprint was obtained.Unfortunately, this technique has some shortcomings. The fingerprint pattern obtained depends strongly on the condition of the skin of the palms of the fingers. If the finger is dirty or the skin is being peeled off, for example, the scanner could have failed to recognize the fingerprint.

      Another story if you use the sensor capacitance. This system uses the electronic equipment a sort of capacitor to scan your fingerprint. Capacitors store electrical charge which is connected with the disc of conductive on the smartphone screen so that it can be used to track detail of the fingerprint.The electric charge on the capacitor will change slightly as part of a prominent line on the fingerprint affixed on the disc conductive. Meanwhile, between the sidelines of the lines that stand out almost no effect on the capacitor. From here, the fingerprint image was obtained.

      Based on the above explanation, the process of identification of the fingerprint does look more complicated than the numeric code or pattern. But, this system greatly facilitates the user's smartphone. Don't need to remember the code, the user can simply attach the finger and access any smartphone open.Reasonable, the demand of smart phones that include features such rampant. Mobile phone manufacturers are increasingly eager gluing technology fingerprint on their products. Research institute of electronic market, HIS Technology, declared the year 2015 the production of fingerprint sensors for mobile phones, tablets, and notebooks continues to increase from 316 million units in 2014 to be 499 million. This amount is expected to increase to 1.6 billion units by 2020.





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