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RE: TLDs as Anti-Theft Devices?
i think the bar code company sold the same identifier for the string in the code that identifies a new id(string)sequence. this string initiation identifier is the same for shelving or purposes of id'ing and tracking and is the same identifier for any barcode so there can be a universal reader. when the identifier passes the radiofreq reader and that identifier has not been removed from the data bank by a specific key code by the cashier in addition to the scan, then it sets off the alarm. if the cashier step were not there, slicksters would scan and leave the store. that is why you can leave one store ok and enter others at least in that mall(there is likely a mall string too)and upon leaving it goes off again when it did not in the store of purchase. sort of like a gene operator/promoter region. they will regulate virtually any gene but due to unique sequence/arrangements, attenuators make them different. this is what i put together when i think of what has happened to me !
in!
stores.
i thought about the metal strip but that would require too many tech reasons dealing with density, and size of metal in the tld being read by a paper thin vertical beam that one passes through, otherwise there would be lots of things that would set it off. that still has holes to the extent that there are virtually no false alarms from non antitheft device objects that you might think would meet the physical atributes of the device. may be there are that we do not typically carry around or are in everyday use. i prefer my first best guess because it provides uniquness to items in that this second guess would not truly track anything but everything that could set of the alarm. the other is a specfic informational alarm attached to each item with one sequense identifying the mall, the other the item string and the other the actual item number.
the third may simply be barcodes that are read and if they match the data base regardles of where you are the alarm sounds. item 999999 at store A would alarm in store B in another state if store B has a 999999 in the data base and an area reader. grocery stores do not have area readers.
i would think that the tld in question does not set off all antitheft devices. only those that are set to detect that sequense.
-----Original Message-----
From: owner-radsafe@list.vanderbilt.edu
[mailto:owner-radsafe@list.vanderbilt.edu]On Behalf Of Sandy Perle
Sent: Thursday, November 04, 2004 1:55 PM
To: John_Sukosky@DOM.COM; radsafe@list.vanderbilt.edu
Subject: Re: TLDs as Anti-Theft Devices?
There isn't much to a TLD. You have the holder, which has a metal
clip, the TLD card itself and the filters in the holder. Most anti-
theft dtetctors work off of some type of an encoded device attached
to the item the store is trying to protect. Perhaps the bar-code on
the TLD label somehjow matches the ID frequency that the unit is
looking for. Perphaps it's the meta clip, but then cellphones should
set-off the detector.
Suggestion.. the individual shouldn't be enetering these stores with
their TLD. More reason for not taking home dosimetry in the first
place.
2nd suggestion .. take some other TLDs and see if they too set-off
the detectors. Maybe this person is setting off the alarms.
Comment .. if the TLD is really the culprit, I'd expect to hear about
more issues out there.
I'd like to hear the resolution, if one is found.
-------------------------------------
Sandy Perle
Senior Vice President, Technical Operations
Global Dosimetry Solutions, Inc.
2652 McGaw Avenue
Irvine, CA 92614
Tel: (949) 296-2306 / (888) 437-1714 Extension 2306
Fax:(949) 296-1902
E-Mail: sperle@dosimetry.com
E-Mail: sandyfl@earthlink.net
Global Dosimetry Website: http://www.dosimetry.com/
Personal Website: http://sandy-travels.com/
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