If you’ve worked with passive RFID before, you know that most readers only work within inches of the card. In [Fran’s] DEFCON talk this summer he calls it the “ass-grabbing method” of ...

Phoniebox is a software suite and tutorial for building a jukebox controlled through RFID cards ... connect an NFC reader to it, wire up a pair of speakers, and you’re set.

These systems make the most sense for a business that has small, movable ... those assets can be transmitted via radio waves to RFID readers, which are usually based at stationary locations.

A critical component of this technology is the RFID reader antenna, which plays a vital role in the efficiency and effectiveness of tag reading. Recent research has focused on innovative designs ...

It turns out that it can muster just enough power to charge a small digital ... when a device that uses RFID (like your phone) is nearby: When approached by a RFID reader some of the energy ...

Also called an "RFID interrogator." The maximum distance between the reader's antenna and the tag vary, depending on application. Credit cards and ID badges have to be brought fairly close to the ...