Version 0.8 21/10/2004 Page 40 of 44
Field Protection
The ability to limit the operations which can be performed on portions or fields of the data
stored in a tag.
Flat Panel Antenna
Flat, conductive sheet antennas, usually made of metal plate or foil.
Frequency
The number of times a signal executes a complete excursion through its maximum and
minimum values and returns to the same value (e.g. cycles).
I.D. Filter
Software that compares a newly read ID with those in a data base or set.
Inductive Coupling
Systems which use the inducing of a current in a coil as a means of transferring data or
power are said to use inductive coupling.
In Use Programming
Many applications require that new data or revisions to data already in the tag, be entered
into the tag, while it remains attached to its object. The ability to read from and write data
to the tag while attached to its object is called in-use programming. Tags and systems with
this capability are called read/write tags and systems.
Interrogator
See Reader and Programmer
Life
Functional period within which no maintenance, adjustment or repair is to be reasonably
expected.
Memory Cards
A read/write or reprogrammable tag in credit card size
Memory Modules
A read/write or reprogrammable tag
Misread
A condition that exists when the data presented by the reader is different from the
corresponding data in the tag.
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