A Technical RFID Primer

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Posted by Hemos on Tuesday October 26, 2004 @02:35AM from the learn-more-about-it dept.

gManZboy writes "Roy Want, principal engineer at Intel Research, has a pretty meaty technical overview of RFID up at Queue. If you ever wondered how these little things actually work it's worth a read. For instance, I was intrigued to find out how the tags (which are generally battery-free) can absorb enough energy from RFID readers to then power up and transmit their own signal back to the reader."

7 of 131 comments (clear)

Sure by Prince+Vegeta+SSJ4 · 2004-10-26 02:43 · Score: 4, Funny

I was intrigued to find out how the tags (which are generally battery-free) can absorb enough energy from RFID readers to then power up
Tinfoil ON!. Everyone knows they get there energy from stealing your soul a little at a time, sucking the very life essence from your body. Then when they have all your energy they march you into a retirement home which is just a block away from the new universal nutrient - soylent green! Tinfoil OFF!
1. Re:Sure by pete-classic · 2004-10-26 02:54 · Score: 1, Funny
  
  They don't steal your soul, son. They steal your precious bodily fluids.
  
  And remember, you needn't avoid women, but you must deny them your essence.
  
  -Peter
Wow by narsiman · 2004-10-26 03:07 · Score: 3, Funny

And I thought they worked by Magic !!

Redundancy check completed !
Re:fuck rfid. by Rosco+P.+Coltrane · 2004-10-26 03:12 · Score: 2, Funny

Don't forget to check the roll of tinfoil before building your hat, just in case they put an RFID tag in the sheet!!!

--
"A door is what a dog is perpetually on the wrong side of" - Ogden Nash
Re:OT: Turds by Anonymous Coward · 2004-10-26 03:12 · Score: 2, Funny

It's truly fascinating to hear about your scatological fixation on an IT website. FYI, a floating turd is generally an indication of too much fat in your diet.
Re:transmission vs. reflection and foil bags by Royoken · 2004-10-26 03:51 · Score: 2, Funny

Another problem the article didn't mention is that bags lined with aluminum or copper foil will thwart these systems.
Ha suckers! I knew my hat worked!
Re:I think the public needs to know... by Anonymous Coward · 2004-10-26 04:05 · Score: 2, Funny

I would suggest that instead of composting your used RFID tags, recycle them. Perhaps these small pieces of silicone could be used in the clothing industry. I can see it now, a RFID "sequined" jacket that drives all RFID readers crazy.