Website: extremetech.com

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Body hacker uses subdermal RFID hand implant as wireless ...

The RFID chip can transfer data both ways of course, so Antonellis isn't stuck with that very tiny animated GIF, and can swap out 1KB files as he pleases. Granted, a static 1KB file must be low on quality and dimensions to begin with, and an animated GIF has to contain multiple frames, which obviously increases the file size. The proof of concept GIF consists of 10 frames, using 6 colors in a wave formation,...

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Related topics : rfid chip hand implantation / rfid chips uses / rfid hand implant / rfid chip implant / tiny rfid chips

The antenna is tuned to UHF TV signals ... - extremetech.com

What the University of Washington researchers have done, however, is quite different. They have created a device that has an antenna tuned to UHF TV signals (539MHz in this case), but instead of displaying a picture, the signal's energy is harvested to power a small device. The device contains logic chip that controls the impedance (resistance) of the antenna. By altering the impedance of the...

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Related topics : what frequency do credit card rfid use