> Eugen Leitl[SMTP:[EMAIL PROTECTED]] wrote: > > Remember that original issue was reading the embedded RFID in a stack of > bills from across the room with a portable reader. A possibly shielded > stack of bills. > > The FAQ you cited says 60 RFID tags/s reader speed under optimal > consitions (I presume a bunch of naked RFID tags within cm of the reader) > > is impressive, though. I don't see Hitachi tags discussed below, however. > And those are 0.4 mm^2, 2.45 GHz. > > http://www.hitachi.com/products/material/rfid/rfidprods/index.html says > communication distance near-contact (1 cm) for on-chip antenna (the only > one useful for in-paper embedding), and 25 cm (potentially up to 1 m), > which pretty much settles even the favourable doorframe issue. > I agree, for the moment. I'm more worried about where this technology will be five or ten years down the road.
> > ... and run into trouble from salesdroids who won't accept them. > > Acting dumb (hey, if it looks like cash, it is cash) helps. And if there's > no backpressures, before long you'll find yourself strutting down the > street sprouting an antenna behind the ear, for the teledetonable > implanted cranial explosive (saves on law reinforcement), and a king-size > anal probe to boot. > Go and read 'Repent Harlequin! Cried the Tick-Tock Man' by PK Dick for a particularly slackless society with this technology. Peter
