Fujitsu - Fingerscan Specifications

Fingerscan^Ž Biometric Reader Specifications

FINGERSCAN is an authentication terminal which verifies a person's identity from their finger image. When a user places their finger on the terminal's scanner the image is electronically read, analysed, and compared with a previously recorded image of the same finger which has been stored in the FINGERSCAN database. Users call up their finger image by keying in an identification number. This ID number does not need to be classified as it is not part of the security system it simply retrieves the image that will be compared to the user's finger scan. FINGERSCAN contains its own database of finger images (called templates), user privileges and authorities, and maintains a log of every transaction and message which it records. The system can be accessed through a laptop, networked to a PC, or connected via a modem to a remote host computer.

FINGERSCAN has been approved by the Australian Federal Attorney General's Department and by the Defence Signals Directorate (DSD) for use by Government departments.

The Technology Behind FINGERSCAN

FINGERSCAN is a biometrics product which involves using some unique biological characteristic or physical property of an individual to verify that person's claimed identity. Biometrics-based identification replaces systems which rely on something a person has in their possession, such as a key or id card, or something a person knows, such as a password or privileged information.

The imaging process is based on digital holography, using an electro-optical scanner about the size of a thumbprint. The scanner reads three-dimensional data from the finger such as skin undulations, and ridges and valleys, to create a unique pattern which is composed into a template file and recorded in the FINGERSCAN database.

The pattern is not a fingerprint and a fingerprint cannot in any way be created from the template.

A template can only be compared with a newly presented live finger image and not with other templates. One reason for this is that the data capture process used to create a template is random. If two templates were created one after another for the same finger, each template would be different. This eliminates the possibility of database matching and enhances users’ privacy.

Click here for more details on the functions of FINGERSCAN.

Specifications

CPU		Motorola 68302; 16mhz; 8-bit bus; watch-dog timer
Real-time Clock		Lithium battery backed; day-of-week register; leap year correction
Memory		512K to 1.5MB flash EEPROM in 512K increments
Keyboard Interface		16-key; 4 × 4 matrix; surge protected
LCD		16 characters × 2 line display; character mode; backlit
Speaker Interface		Speaker drive up to 12V, 500mA; volume adjustable
Alarm Interface		4 × TTL level compatible inputs; 1 to 30 sec delay; rated for input voltages of +30V to -30V; screw terminals
		4 × open collector outputs; rated at 50V, 500mA; screw terminals
		1 × 12V DC output; 10 ohm source impedance; screw terminals
Serial Interface		1 × serial port; jumper selectable for RS232/RS485 interface
		1 × serial port, RS232 interface (if the first port is not RS232) and TTL level auxiliary connector; smart card interface
Solenoid Driver		Protected MOSFET switch rated at 60v, 10A Flywheet diode for inductive loads; 12V supply outputs; 68 ohms resistance 18 volts high pull-in current (capacitive reservoir); reduced holding current Software selectable for NO or NC. Activation period from 1 to 20 seconds
Accuracy Verification	False Acceptance Rate (FAR)	(Type 2 Errors) 0.0001%
	False Rejection Rate (FRR)	(Type 1 Errors) less than 1%
Power Input		12V AC at 50/50Hz; 1A; 500mA consumption in idle mode
Battery backup (optional)		24V DC with provision for battery charging from the AC supply
Dimensions (Width × Depth × Height)	Integral unit	245mm × 85mm × 230mm
	Modular/portable unit	Reader: 245mm × 85mm × 110mm PCB : 245mm × 45mm × 120mm