User's Manual

ScanID
Release 1.0 Page
3 of 21
2002-08-05
ID: ID020058
1 Introduction
1.1 System Description
The ScanID hand held System is a high frequency identification system using the
FM-transmission.
The basic item is a transponder working as a forgery-proof electronic identity disc.
The reading unit of the system sends an energy impulse via the antenna. The
capacitor of the passive, battery-less transponder is charged by this impulse. After
that, the transponder returns a signal with the stored data.
The data received by the transponder reader were checked in the µ-controller and
send to the display.
The total reading cycle takes less than 100 ms.
As a sight-connection between transponder and reader is not absolutely necessary,
the transponder can also be identified through non-metallic material.