Researchers from Disney Research, Carnegie Mellon, and MIT have figured out a way to increase the speed and accuracy of tracking wireless, battery-less RFID tags. They've used the discovery to create a bunch of cool, interactive objects that don't need a power source, including wireless pong controllers, an interactive wood-block tic-tac-toe game, and an unpowered music synthesizer — all using a version of the tech inside Disney's RFID-powered MagicBands.
The work uses a type of RFID tag that's powered solely by radio frequencies that are emitted by an external reader. Prior research has shown that RFID tags could be used to reliably track inputs like when a person touched a tagged object, whether the object was touching conductive or...
via The Verge
