The cell read lips

Do you mind people leaving the phone turned on at the movies, or talking on the phone to the cries on the bus or train?

A Professor Tanja Schultz Karlsruhe Institute of Technology (Germany) yes, and so created a prototype mobile phone that reads lips without speaking.
"I was a day on the train and the person sitting next to me talking all the time, then I thought, 'I do something,'" Schultz.
The technology, called "silent communication" and still under development, allows phone conversations without uttering it.
The device records the electrical impulses emitted by facial muscles to move, even if the person speaks, and then repeats the words into the telephone receiver, through a synthesizer.

The device was unveiled at the Cebit electronics fair in Germany, and operates by the principle of electromyography, which are detected by electrical signals from muscles.
This technique is mainly used in medicine to diagnose certain diseases related to brain injury.

The prototype presented in Germany hold a nine electrodes attached to the user's face and capture the electricity that you produce by moving their mouths.

Electrical impulses pass to another device that recorded and amplified. Then passed to a laptop via Bluetooth. Finally, the software translates the signals into text, which is encoded again by a synthesizer.

In future, all those steps might concentrate on a mobile phone that would allow for real time communications.
"We understand that at the moment is not very attractive to the general public," admitted the professor
However, you might find it useful now to those who have lost speech because of sickness or accident.
It could also be used as simultaneous translation system: the person speaking in a language, the system encodes and outputs the sound and translated into another language.

Not for the first time you attempt to develop "silent communication" through electromyography: the U.S. space agency NASA has already used this principle to develop communication systems in noisy environments such as the International Space Station, without actually communicating in full sentences.

The Cebit trade fair is held from 2 to 6 March in Hannover, Germany.