Communications of the ACM
Microsoft Tech to Control Computers With a Flex of a Finger
Electromyography (EMG) decodes muscle signals from the surface of the skin. Microsoft's patent application calls EMG sensors a "universal" method of controlling any computing device.
Credit: ReadWriteWeb
Controlling computers through finger movements is the focus of Microsoft's development of electromyography (EMG) controlled computing technology. The company recently applied for a patent on a wearable electromyography-based controller, claiming that an EMG sensor is a universal technique for controlling any computing device. Such a sensor can detect electrical impulses generated by motor neurons, and the Microsoft patent proposes to interpret these impulses without requiring a physical interface.
EMG sensors could be incorporated into devices or garments, and Microsoft's application aims to tackle the problem of calibration. Since muscles, fat, and skin can interfere with signal detection, either a single sensor has to be well positioned or a network of sensors must engage with each other to interpret the signals. The sensors would link wirelessly to a central controller or hub that would function as the point for communicating with external devices. Microsoft suggests this hub could be something similar to a smartphone or an integrated device such as a wristwatch.
The company's favored EMG controller is an armband outfitted with a ring of vibrating elements around the edge, which would buzz to signal the acceptance of a user command.
From Read Write Web
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