14 DAY TRIAL // Microsoft Research has once again managed to develop a very innovative technology, this time supposed to help users transfer files from one mobile phone to another using microphones and speakers.
The new system is based on Secure Peer-to-Peer Acoustic NFC and, as its name suggests, relies on standard NFC hardware and employs a tiny chip used to transfer data.
The main difference is that Microsoft’s technology, simply called Dhwani, makes use of a mobile phone’s speaker to send data to another device, which analyzes the received information using its microphone.
The tech giant claims it has already managed to reach speeds of up to 2.4 kilobits per second, and even though that sounds pretty slow, the company explains that this is “sufficient for most existing NFC applications.”
As for security, there’s no need to worry about that. “A key feature of Dhwani is the Jam-Secure technique, which uses self-jamming coupled with self-interference cancellation at the receiver, to provide an information-theoretically secure communication channel between the devices,” Microsoft said.