...has a range of up to 10m. And with the use of more expensive 'active tags' (which have their own power source - seeTechnology Overview, below), this can be extended considerably. But although such systems are available in Europe, there...
http://www.computerweekly.com/Articles/2002/05/21/187237/lets-play-tag.htm
...9, 2009 8:01 PM PST Execs seetechnology as economic equalizer Posted...Recent posts from CES 2009 Execs seetechnology as economic equalizer Philips...coverage CES News Execs seetechnology as economic equalizer Philips...
http://ces.cnet.com/8301-19167_1-10139537-100.html