January 14, 2003
RFID tags: Big Brother in small packages
RFID tags: Big Brother in small packages
The generic name for this technology is RFID, which stands for radio frequency identification. RFID tags are miniscule microchips, which already have shrunk to half the size of a grain of sand. They listen for a radio query and respond by transmitting their unique ID code. Most RFID tags have no batteries: They use the power from the initial radio signal to transmit their response.
Posted by rshah at January 14, 2003 12:00 PM