The “sip and puff” way, which allows people make out commands by breathing in and breathing out into a pipe, is most commonly used. But it provides users just four controls, which is a limited selection.
Control arrangements that employ advanced pads to evaluate neck and head motions are also general. But the use of this hardware could be exhausting and frustrative on smaller electronic devices like computers. And although fresher creations that track eye motion is a good achievement. This system could be expensive, sluggish and susceptible to mixed signals.
The tongue, no doubt, is a more flexible, fully responsive and untiring selection. Similar to other muscles of face, its functions incline to be saved in accidents where other parts of the body are paralyzed. The reason is the tongue is having connection with the brain and not any link to the spinal cord. The tongue’s promise has long tempted scientists. First time in the 1960s, research work concentrated on making the tongue a primitive lens by attaching electrodes to the tissue.
In the most recent researches a photographic camera is attached. This technique triggers tongue electrodes in the form of an object, facilitating blind persons feel images. NewAbilities Systems is a Palo Alto, Calif.-based company, who also worked on such technologies. They also configured a nine-button computer keyboard positioned on the roof of the mouth to operate electronic devices.
Ghovanloo’s research, however, concentrates on making a realistic keyboard rather than a physical one. He achieves it through positioning a magnet about 3 millimeters wide under the tip of the tongue. The magnet’s motion is tracked by detectors on each cheek side. It broadcasts data to a receiver atop instead of a big-sized set of headgear. It is afterward prepared by software that changes the movement into instructions for a wheelchair or other electronic devices.
Initial trials involving Georgia Tech students are favorable. The team’s work has already appealed a $120,000 grant from the National Science Foundation and $150,000 from the Christopher and Dana Reeve Foundation. It is essentially required to better the software, fiddle with its size of the magnet and increase the wireless battery’s charge. Most especially, they should discover a method to hold prices in between the “sip and puff” systems. The design surely demands betterments.