ID TECH Omni User Manual download pdf (Page 39)

Using the Data Editing Functions

The data editing function is often applied to driver’s licenses, where the

magnetic stripe contains three tracks of information about the license holder,

and the host application may need only certain details (such as name, address,

and birth date) rather than all the data the stripe holds.

In the AAMVA format, for example, the unedited output for a driver’s license

might look like this:

TRACK 1: %CABREA^DOE$JANE$R$^310 S JEFFERSON ST^?

TRACK 2: ;636014028198457=051219639924?

TRACK 3: %!!92870 C F503121BLKBRN D69119980116?

Track 1 contains the license holder’s name and address. Track 2 includes the

expiration date and the holder’s birthdate. Track 3 includes such details as

height, weight, sex, hair, and eye color.

You can identify exactly what ﬁ elds the various bits of data occupy by

referring to the AAMVA format in Appendix E. Read the data from a sample

license, print it out, and then mark the ﬁ elds accordingly. Now decide what

ﬁ elds of data you need, and what ﬁ elds of data you don’t need. For instance,

if you don’t need eye and hair colors, you can discard this data once it is read

and decoded. You don’t need to send it to the host.

Once you know what data you’ll need for your host application, decide what

order you’ll need it in. Should the name come ﬁ rst? Should the city come

last? Is there other data or formatting you need? If so, you will have to add

ﬁ elds that contain that data.

Knowing what ﬁ elds you need to add, drop, and re-arrange will enable you to

make full use of the commands on the following pages.

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ID TECH Omni User Manual Page 39