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Clevertex - Grado Zero Espace Srl

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In the area of business and personal communication, to draw an example, there are many applications<br />

and opportunities for electronic textiles. Computers, cellular phones, personal data assistants,<br />

beepers, and pagers are common devices used today for mobile communication. Users of these<br />

technologies are carrying around a separate display, battery, keypad, speaker, and ringer for each of<br />

these devices. Electronic textile technologies can potentially integrate these items directly into textile<br />

and apparel products with shared resources. This would eliminate the need to carry such devices and<br />

increase mobility, comfort and convenience. The technologies supporting electronic textile<br />

communication include integrated input and output devices such as computer keypads and display<br />

screens and integrated antennas for mobile phones use, internet connections and downloads.<br />

In the following, examples are discussed that make use of a textile structure to integrate single or<br />

several electronic devices.<br />

Although there are many companies and institutes involved in research projects going on in the field of<br />

wearable electronics, the US military is still a major sponsor, through such agencies as the US Army<br />

Natrick Soldier Center and The Defense Advanced Reseach Projects Agency (DARPA).<br />

A first approach to integrate electronics into textile structure was certainly achieved by gloves wired to<br />

the computer that allows it to take input from a user's hand gestures. Sensors in the glove detect the<br />

wearer's hand movements, and transmit these to the computer in a digital format which the computer<br />

can interpret. The Dataglove is one invention made in the late 1980ties that can be exemplary<br />

named in this case (others are for example the PowerGlove and the Cyberglove ® ). The Dataglove<br />

is a trademark of the company VRLOGIC in Germany. The first prototype consists of a Latex glove to<br />

which tubes equipped with sensors for each finger are attached by stitching. Hence, ten finger joints<br />

could be monitored. Four wires were used for each finger or tube to build up a circuit. The voltages<br />

coming out are varying depending on the finger flex [5, 59].<br />

Fig. 18 The Dataglove developed by Kevin Mellott [59]<br />

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