User's Guide

6
Precise 100 SC
– the Fingerprint Reader
Congratulations – you are about to use the Precise 100 SC for secure, cost-effective and
convenient logon!
The Precise 100 SC fingerprint reader
The fingerprint reader includes a sensor for reading fingerprints and a smart card reader
for reading and writing information on smart cards. When you place your finger on the
fingerprint reader, the part of the finger that touches the sensor is read. The sensor meas-
ures the capacitance in the finger pad, which reveals the pattern of the fingerprint. Thus,
a paper copy with a picture of a fingerprint can not grant access to the system.
When logging into a system, the read fingerprint is compared to a fingerprint template,
i.e. a data file containing information about the fingerprint, stored on a hard disk or on a
smart card. If the read fingerprint matches the fingerprint template, the system will grant
you access. If the match is not successful, the system will deny access. It takes less than
one second for the system to compare a read fingerprint with the information in the data-
base. All information sent between the fingerprint reader and computer is encrypted for
maximum security.
If the information is stored on a smart card, you must insert the smart card into the smart
card slot on the fingerprint reader before placing your finger on the sensor. If you do not
have a smart card, your fingerprints are stored on the hard disk, and you will simply enter
your username and place your finger on the fingerprint reader to log into the system.
Chapter 1 Introduction
diode
fingerprint sensor
smart card slot