Proximity Sensor Array
The heart of FngerWorks'
patented MultiTouch technology is a unique, 2-dimensional
proximity sensor array that produces images of fingers and
hands near or touching its surface. Accompanying software then
recognizes and tracks all the fingers and hands moving on the
Traditional touchpad and
touchscreen sensing technologies, in comparison, can only
track motions of a single finger, and become confused if more
than one finger ever touches. This means these old
technologies don't let the fingers work together as a whole
hand, as the fingers naturally do with all other handheld
tools. Also, traditional touchpads don't spread the workload
evenly amongst the fingers the way MultiTouch does, to avoid
repetitive stress on one finger.
FingerWorks products include a
low-power on-board microprocessor whose first job is to
collect and process image data from the MultiTouch sensing
surface. It then recognizes, tracks, and interprets finger and
hand motion, ultimately generating mouse or key sequences for
the host computer's USB port. All FingerWorks products emulate
standard USB keyboard & USB mouse, so they simply plug
& play on Windows, Mac OS, Linux, and newer Unix operating
Rich Gesture Capability
MultiTouch technology used as a
computer input device provides many new capabilities and
benefits. It gives the computer user much more control of
graphical and text objects while providing the same
functionality of the keyboard and mouse. MultiTouch also
eliminates the need to reach for a mouse by providing an
interface that enables normal typing and mouse operations over
its entire surface. Pointing, gestures, and keys are always
available right under the fingers, minimizing wasteful hand
- Touching 1 finger at a time
is recognized as a keystroke command.
- Simultaneously dropping two
fingertips on the surface initiates pointing.
- Simultaneous thumb and
fingertip motions become gesture commands.
MultiTouch can receive and
interpret input anywhere on its surface. Operations like copy,
cut, paste, save, open, close, scroll, zoom, pan and a host of
other multi-key commands are all done with simple,
easy-to-repeat, and easy-to-learn gestures.
The number of gestures that
MultiTouch recognizes is quite large. Hand translation,
rotation, scaling, and wobble motions provide about 12 unique
gestures for each finger combination (chord). Since MultiTouch
distinguishes about a dozen chords per hand, FingerWorks
products can recognize over a hundred simple gestures per
hand! Sound like a lot to memorize? Most people just learn the
gestures for the commands they need often. Also, each group of
gestures is easily learned as a chunk (rather than memorizing
one gesture at a time) because gestures with complementary
motions invoke complementary, intuitively related commands.
e.g., Undo & Redo are learned as one, reversible