There are already a couple of ways by which mobile devices can communicate with computers without using wires, like Bluetooth, Wi-Fi and the newer Near Field Communication technology or NFC. But Fujitsu Laboratories has come up with a way for a mobile device to interact with a computer, using its camera to “look” at the computer’s display.
To pull off the trick, Fujitsu Labs’ technology superimposes communications data on a computer screen in the form of microscopic blobs of light. The data can include IP addresses, SSID and anything else that can be used to identify the computer within the network. Complementary software on a mobile device will then enable it to read those microscopic blobs of light using its camera.
Once the two devices are connected, the same technology can also be used to monitor what file is being displayed on the computer screen at the moment and – should the mobile device user request it – automatically send it to the mobile device. As you’ll see on Fujitsu’s demo video, the technology can also be used to easily transfer files the other way, from a mobile device to a PC.
It sounds like a very useful technology, but I can’t help but imagine just how silly future classes and business meetings will look like if they use this tech.