IEEE+Spectrum+March+2007+-+RFID+Inside

IEEE+Spectrum+March+2007+-+RFID+Inside - bIoMEdIcAl RFID...

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24 ± IEEE±Spectrum± | ±March±2007± | ±NA±± www.spectrum.ieee.org RFID The murky ethics of implanted chips bIOMEdICAl Authorized licensed use limited to: Georgia Institute of Technology. Downloaded on August 2, 2009 at 21:16 from IEEE Xplore. Restrictions apply.
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guSto±IMAgES Authorized licensed use limited to: Georgia Institute of Technology. Downloaded on August 2, 2009 at 21:16 from IEEE Xplore. Restrictions apply.
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anAtomy of An RFID TAg sIZe the±device±is±11±millimeTers± long±and±abouT±1±mm±in±diameTer,± comparable±To±a±grain±of±rice. the±VeriChip±implanTable±RFID±Tag,±shown±below,±is±The±only± Tag±approved±for±use±in±humans±for±a±medical±applicaTion.±IT± is±a±simple±device±consisTing±of±a±coil±of±wire±and±a±hermeTi- cally±sealed±microchip±wiThin±a±glass±capsule.±the±coil±acTs± as±an±anTenna±and±uses±an±RFID±reader’s±varying±magneTic± field±To±power±The±microchip±and±TransmiT±a±radio±signal.± Each±VeriChip’s±signal±is±a±unique±idenTifying±number±ThaT± links±To±a±medical±record±daTabase. TIssUe-bONDING CaP A±cap±made±from±a±special±plasTic± covers±a±hermeTically±sealed±glass± capsule±conTaining±The±RFID±circuiTry.± the±plasTic±is±designed±To±bond± wiTh±human±Tissue±and±prevenT±The± ±capsule±from±moving±around±once±iT± has±been±implanTed. aNTeNNa the±coils±of±The±anTenna± Turn±The±reader’s±varying±magneTic± field±inTo±currenT±To±power±The±chip.± the±coil±is±coupled±To±a±capaciTor± To±form±a±circuiT±ThaT±resonaTes±aT± 134±kiloherTz. LEStER±LEFKOWItZ±(2) ID ChIP the±chip±modulaTes± The±ampliTude±of±The±currenT±going± Through±The±anTenna±To±conTinuously± repeaT±a±128-biT±signal.±the±biTs± are±represenTed±by±a±change±in± ±ampliTude—low±To±high±or±high±To±low.± An±analysis±by±JonaThan±WesThues,± of±Cambridge,±Mass.,±indicaTed±ThaT± only±32±of±The±biTs±varied±beTween± any±Two±VeriChips.±the±resT±of±The± biTs±probably±Tell±The±reader±when±The± loop±sTarTs±and±may±also±conTain±some± error-checking±or±correcTion±daTa. Authorized licensed use limited to: Georgia Institute of Technology. Downloaded on August 2, 2009 at 21:16 from IEEE Xplore. Restrictions apply.
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www.spectrum.ieee.org±±± March±2007± | ±IEEE±Spectrum± | ±NA±±±±±±± 27 With the proliferation of radio-frequency identification tech- nology and the recent, but increasing, use of implantable RFID chips in humans, we may already be on a path that would make such an ad commonplace in a 2017 issue of IEEE Spectrum . The benefits would be undeniable—an implantable RFID chip,
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This note was uploaded on 02/08/2011 for the course MGT 3743 taught by Professor Staff during the Fall '10 term at Georgia Institute of Technology.

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IEEE+Spectrum+March+2007+-+RFID+Inside - bIoMEdIcAl RFID...

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