Tongue Drive System Goes Inside the Mouth to Improve Performance and User
  Comfort
From: Georgia Tech - 02/20/2012

The Tongue Drive System is getting less conspicuous and more capable. Tongue
Drive is a wireless device that enables people with high-level spinal cord
injuries to operate a computer and maneuver an electrically powered
wheelchair simply by moving their tongues.  

The newest prototype of the system allows users to wear an inconspicuous
dental retainer embedded with sensors to control the system. The sensors
track the location of a tiny magnet attached to the tongues of users. In
earlier versions of the Tongue Drive System, the sensors that track the
movement of the magnet on the tongue were mounted on a headset worn by the
user. 

Read the entire article at:
http://www.gatech.edu/newsroom/release.html?nid=110351

Links:
Maysam Ghovanloo
http://www.ece.gatech.edu/about/personnel/bio.php?id=147

Tongue Drive: A Tongue-Operated Evironmental Controller
http://www.ece.gatech.edu/research/labs/gt-bionics/Research3.shtml

Driving with a Tongue
http://pddnet.com/photos-of-the-day-driving-with-a-tongue-022112/?et_cid=2491312&et_rid=113317557

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Tongue Drive System Goes Inside the Mouth to Improve Performance and User
  Comfort
From: Georgia Tech News - 02/20/2012
By: Abby Vogel Robinson 

Georgia Tech researchers are developing the Tongue Drive System, a wireless
device that enables people with spinal cord injuries to operate a computer
and maneuver a wheelchair by moving their tongues. The system consists of a
dental retainer embedded with sensors, which track the location of a tiny
magnet attached to the user's tongue. "By moving the sensors inside the
mouth, we have created a Tongue Drive System with increased mechanical
stability and comfort that is nearly unnoticeable," says Georgia Tech
professor Maysam Ghovanloo. The output signals from the sensors are
wirelessly transmitted to an iPod or iPhone, and software installed on the
iPod interprets the user's tongue commands by determining the relative
position of the magnet with respect to the array of sensors. This information
is used to control the movements of a cursor on a computer screen or the
movements of a powered wheelchair. The researchers also have created an
interface for the system that attaches to an electric wheelchair. "During the
trials, users have been able to learn to use the system, move the computer
cursor quicker and with more accuracy, and maneuver through the obstacle
course faster and with fewer collisions," Ghovanloo says. 

Read the entire article at:
http://www.gatech.edu/newsroom/release.html?nid=110351