-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Tim wrote:
>Physics-wise, it's a jiveass fantasy. No way are there "micro-strips" >readable from a distance in today's currency, and very likely not in the >next 20 years. I'm not so sure it'll take that long, given the amount of effort people are putting into it. Here are some relevant articles from that single five-month old issue of Global ID Magazine I referenced... A long range ID system http://web.tiscali.it/homeglobal/issues/0111/Nov01-07.pdf Utilising the internationally approved 2.45Ghz UHF band allows specialised readers to access the information contained in transponders at a distance of up to three metres. Familiar sources of disturbance such as reflection, noise interference and overreach have been eliminated by integrating UMTS/GSM technologies Miniaturising transponders http://web.tiscali.it/homeglobal/issues/0111/Nov01-16.pdf by Reihard Jurisch, Micro-Sensys The consolidated techniques used for fabricating integrated circuits have been successfully applied to the manufacturing of integrated transponders. Antenna coils are micro-structured onto the chip containing the transponders electronic circuitry Smart banknotes challenge conterfeiting http://web.tiscali.it/homeglobal/issues/0111/Nov01-14.pdf by Gaia Steden Hitachi has developed its smallest RFID integrated circuit called the Mu - -chip, which is thin enough to be embedded in paper. Designer antennas for RFID applications http://web.tiscali.it/homeglobal/issues/0111/Nov01-06.pdf by Bob Scher, Dynasys The choice of the correct RFID antenna for a specific application is a complex issue. It is necessary to consider what elements of an RFID system are needed: from the spacing of antennas to the strength, shape and resonance of readers and transponders *** He that would make his own liberty secure must guard even his enemy from oppression; for if he violates this duty he establishes a precedent that will reach to himself. - --Thomas Paine -----BEGIN PGP SIGNATURE----- Version: PGPsdk version 1.7.1 (C) 1997-1999 Network Associates, Inc. and its affiliated companies. (Diffie-Helman/DSS-only version) iQA/AwUBPLOm2/g5Tuca7bfvEQJYWgCgmKncKA9rpBsIbiI7J3isPQ0pL5QAoPIC 4/1byzrcjsekyN/DxUi67mCE =3OXb -----END PGP SIGNATURE-----
