A biometric reader is a security device that reads your unique biometric signature, such as on your fingertips, the structure of your face, and even the way you walk.
If you are granted access to the security device or security lock that you are trying to open, the biometric sensor reader will verify that you are authorized to open it.
You will be granted access, but those who are not authorized will not be able to open the security device unless they have the master key code.
This ensures that only those who are allowed to open a device are able to do so, and there is little risk of a key or key card being stolen or the combination to the lock found.
Facial recognition devices are not as commonly used for home or company purposes, though many large corporations use facial recognition scanners and biometric security software.
Many military dod biometrics and scientific applications for facial recognition software does exist, but the cost and usage of biometric device technologies is one of the things that has contributed to them being less commonly used for commercial or residential security purposes.
A finger print reader is one of the most commonly used biometric security device, as the fingerprint is one of the smallest and easiest to read of the biometric signatures.
The fingerprint can simply be placed on a small biometric sensor or reader that is barely wider and longer than the fingerprint itself, and the software that scans the fingerprint and matches it against the others in its database is fairly simple.
The biometrics authentication software used by the average biometric fingerprint reader is fairly simple, meaning that nearly anyone can afford to purchase biometrics devices, today.
The biometric hand reader is a slightly more complex version of the fingerprint reader. A palm reader not only requires the verification of the fingerprints of all five fingers, but also the length of the fingers, the width of the palm, and the overall size of the hand.
These hand geometric biometrics readers are much more advanced and thereby much more secure, but they tend to be fairly costly due to the fact that the technology required to control biometrics hand geometry devices is very complicated.
A retinal biometrics scanner is another biometrics reader that is commonly used, and you see it often in movies due to the fact that it too is one of the cheapest forms of scanning devices.
All you need to do to use these scanners is simply place your iris in front of the scanner, let the device capture the unique retinal pattern of your eyes, and compare it against the others in its database. Using this type of retina scanning is slightly uncomfortable, but it is much cheaper than a palm reader.
There are a few other types of biometric reader devices, but none of them are as common due to the fact that they are incredibly complex and biometrics in retail stores is fairly costly.
The voice recognition chip matches the tone and pitch of your voice against that stored in the speech and voice recognition database, and you have to speak certain words into a voice stress analyzer in order to open the biometrics lock.
The gait matching devices measure the way you walk to determine if you are permitted to enter, and the biometrics signature verification devices determine who you are by the way you write.
All of these methods of biometrics recognition are fairly complex, thus making them less commonly used.
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