It's RFID, though I don't know whether they typically use the 120kHz or
13.56MHz RFID, but I imagine that since they started doing this awhile
ago they use the older 120kHz standard.

I'm unsure about whether they can be read through our current (modern)
RFID readers (such as the reference design(s) from Microchip), but it's
not going to be too far different.  You can get the little glass
capsules from TI and others (go to TI and look for RFID), though they
don't list medical or animal use on the site - I'd be surprised to find
that they weren't used for that.

-Adam

Giles wrote:

>Ok, does anyone know about the Identachip stuff?
>For those who have not heard of it, it is the "microchipping of your pet"
>stuff.
>They inject a small transponder or something into your pet and it has a
>number that can be looked up.
>It is also used in Asset Tracking.
>
>1. How does it work?
>2. Is their a lifespan of the device?  Does it have a battery?
>3. What is the frequency, range, and general limitations?
>4. Is any of this technology avalible for OEMs?
>5. How much data can be stored?
>
>Some links to this type of stuff:
>http://www.avidplc.com/assettrac/what.htm
>http://www.hitec-id.net/
>http://www.identichip.com/
>http://www.homeagainid.com/
>http://www.electronicidinc.com/
>www.trovan.com  (this link looks dead, but the search pointed to it)
>
>Best regards,
>Giles
>
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