Re: RFID Human Implants - Occupancy Detection

["David Buckley" <db@xxxxxxxxxxx>]

--- In ukha_d@xxxxxxx, "Iain Goodhew" <iain.goodhew@n...>
wrote:
> The main problem here is the readable range of the
> implanted microchip. ... The pet door would need to either
> have some sort of tunnel the pet travels through first (aka
> flocontrol) with the reader antenna, or the range of the
> reader needs to be 12-15cm, to allow the door to unlock
> before the cat enters.

The staywell electronic cat door that uses the colour-coded inductive
keys doesn't click till the cat offers up its head right to the door.
The cat hears the click, and then shoves a little further to open the
door.  The detection range is really very short.  A few cm at best.

The cat(s) just get used to it.  They learn the technique.  Even the
lovely Bimbo, now deceased, thick as two short, even he got the hang
of it.

And besides, a patentable idea doesn't actually have to work :-)