Introduction
4
The HandPunch uses low-level infrared light, optics, and a CMOS (IC chip) camera
to capture a three-dimensional image of the hand. Using advanced microprocessor
technology, the HandPunch converts the image to an electronic template. It stores the
template in a database with the user’s ID number.
To gain punch, the user enters his or her ID number at the HandPunch’s keypad or uses
an external card reader. The HandPunch prompts the user to place his or her hand on
the HandPunch’s platen
2
. The HandPunch compares the hand on the platen with the
user’s unique template. If the images match, the HandPunch records the transaction for
processing.
The HandPunch is a time and attendance terminal designed for use with time and
attendance software. Refer to Figure 1-1 on page page 5 when reviewing the information
in this section.
The HandPunch has an integrated keypad for ID entry (see “Figure 1-1”). The
CLEAR
and
ENTER
keys are used for data entry and programming.
Four different features assist the user with hand placement and read verification.
1. A light emitting diode (LED) hand placement display on the HandPunch’s top panel
assists users with hand placement on the platen.
2. A liquid crystal display (LCD) shows operational data and programming menus.
3. “Red light/Green light” verification LEDs quickly inform users if their verification
attempts were rejected or accepted.
4. An internal beeper provides audible feedback during keypad data entry and user
verification.
2 The Platen is the flat surface at the base of the HandPunch (see “Figure 1-1”). This is where
users place their hands for enrollment and verification. It has guide pins to assist positioning
the fingers during use.
Principle of
Operation
The
HandPunch
Terminal
