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Environmental Computing
by Andrew McCaskey
New Meaning To Ubiquitous Computing
The Carnegie Mellon students work in extending the “Scratch Interface” is an example of the first tiny steps in extending the computing interface further into our daily environment. Students designed a transducer to interpret the acoustic signature of a fingernail scratched in a pattern along a wooden, plastic or painted surface such as table, whiteboard, or wall. Then, by observing those motions after a short calibration run, were able to extend the control surface several meters in various directions with no other physical coupling or equipment.
Just like the accelerometer that have bee added to to devices such as the iPhone and Wii controllers are extending the interface into at four dimensions, scratch input integrates more fully into the physical world. The scatch input scenario had roughly six separate gestures that could be used to control a music player, answer a phone, turn off Instant Messaging, or similar tasks. Aside from magic lamp interfaces to real world or virtual objects, the dark side of the sensor could be seen as well – detecting when the lockbolt had been thrown, or when it had been only latched. Which will be the first to make it into the real world ?
CES 2008 Coverage for Tech Podcast Network
Scratch Input
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