
The increasing sophistication of computer
programs and communication systems requires the development of more efficient,
intuitive and interactive human-computer input interfaces.
Similarly, computer hardware is miniaturizing; becoming less cumbersome
and more portable at an incredible rate. What was on your desktop yesterday, is
on your laptop or palmtop today and will be on your wrist watch or ring
tomorrow…fully integrated with your home PC and the NET.
Imagine having to carry a ‘qwerty’ keyboard
and mouse in your briefcase or pocketbook to use with your wrist watch computer
and eyeglass monitor! Input devices will have to miniaturize as well and become
more direct, intuitive and able to be used while your hands (and part of your
attention) are engaged elsewhere.
The Cyberlink System represents this next
step in the evolution of the human-computer input interface. The Cyberlink
System is a BrainBody actuated control technology that combines eye-movement,
facial muscle, and brain wave bio-potentials detected at the user’s forehead to
generate computer inputs that can be used for a variety of tasks and
recreations.
The forehead is a convenient, non-invasive
measuring site rich in a variety of bio-potentials. Signals detected by three
plastic sensors in a headband are sent to a Cyberlink interface box which
contains a bio-amplifier and signal processor. The interface box connects to
the PC computer’s serial port. The forehead signals are amplified, digitized
and translated by a patented decoding algorithm into multiple command signals,
creating an efficient, intuitive and easily learned hands-free control
interface.
Three different types or channels of control
signals are derived from the forehead signals by the Cyberlink Interface. The
lowest frequency channel is called the ElectroOculoGraphic
or EOG signal. This is a frequency region of the forehead bio-potential that is
responsive primarily to eye movements. The EOG signal is typically used to
detect left and right eye motion. This signal can be mapped to left and right
cursor motion or on/off switch control.
The second type of control signal is called the
ElectroEncephaloGraphic or EEG signal. The Cyberlink
Interface subdivides this region into ten component frequency bands called
‘Brainfingers’. These frequencies reflect internal mental/brainwave activity as
well as subtle facial muscle activity. A wide range of facial muscles affect
these frequency bands. Users typically learn control of their Brainfingers
first through subtle tensing and relaxing of various muscles including
forehead, eye and jaw muscles. After a little experience with the Cyberlink System,
most users begin to experiment with more efficient, internal brain-based
control methods. Since this frequency region is sensitive to both mental and
muscular signals it is called the ‘BrainBody’ signal.
Brainfinger control is continuous or analog
and is typically used for such things as control of cursor vertical or
horizontal movement. For example, one Brainfinger may be used to control
vertical movement while a second Brainfinger (or other signal channel) is used
to control horizontal movement.
The third channel is called the ElectroMyoGraphic or EMG signal. The EMG signal primarily
reflects facial muscle activity. It is typically used in the Cyberlink System
for discrete on/off control of program commands, switch closures, keyboard
commands, and the functions of the left and right mouse buttons.
In a Cyberlink discrete control study
conducted by the United States Air Force at Wright Patterson Air Force Base in
Dayton, Ohio, subjects’ reaction times to visual stimuli were
found to be 15% faster with the Cyberlink EMG button than with a manual button.
Specific facial and eye movement gestures
can be discriminated by the Cyberlink software and mapped to separate mouse,
keyboard, and program functions.
Continuous and discrete control capabilities
have been incorporated into a WINDOWS mouse driver: the Cyberlink Actuated
Tracker, or C.A.T. This hands-free mouse enables the user to steer the cursor,
change its speed and resolution, perform left and right mouse button functions,
and send keyboard characters and character string commands. The C.A.T. features
a selection of user-formatted control paradigms.
In a recent study, users were able to use
the C.A.T. to position and click the cursor over randomly appearing 32 x 32 pixel
(icon-sized) targets in 4 seconds or less.
The C.A.T. makes hands-free two-axis control
possible not only with Cyberlink specific games and applications, but also with
third-party software; including popular interactive games, word processors,
spread sheets, and Computer-Aided Design programs as well as special-needs
software such as Words Plus EZ Keys, WiViK2, Clicker Plus,
and GUS. The C.A.T. can be used for hands-free environmental control
using an X-10 Home Controller relay for example to switch on and off an
electric light, appliance, or communication device.
For individuals with limited control of
their facial muscles, the Cyberlink software can be formatted to use BrainBody
or EOG inputs (instead of EMG) to activate switch closures and mouse button
clicks.
The Cyberlink System provides an intuitive,
more direct, hands-free, language-independent control
interface. It represents a cutting-edge technological achievement in the
user-computer interface making possible new computer control methods to empower
the disabled and all users of tomorrow’s technology.

The Cyberlink
System includes:
-The Cyberlink
Interface Unit
-The Cyberlink Headband/Sensor Harness
-Three Sensors
-One Tube of Cybergel
-The software package
for Windows (including the C.A.T. and the new Windows Music Program.)
-All necessary cables
-A 50 page users manual
-Six Months free software upgrades for registered users
The Cyberlink system components may also be ordered as separate line items.
Contact us for more information.

Recommended
computer system requirements:
Pentium CPU or compatible (300 MHz or faster clock speed)
One of the following operating systems :
Windows 95 / 98 / ME / XP
32 MB RAM for Windows 95/98/ME/XP
10 MB free hard disk space
Two AA batteries
Cyberlink , C.A.T., Cyberlink Actuated Tracker,
D.R.E.A.M., Digital Recursive Event Algorithmic Music, Brainfingers,
"Bringing the Gift of Hands-Free Access to the World" are trademarks
(TM) of Brain Actuated Technologies, Inc.
Copyright © 1999 Brain Actuated Technologies, Inc. All
Rights Reserved