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Jun 19th, 2014
 
First ultrasonic MEMS controller to make mobile hands free
 
Control mobile devices without touching them.
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The world's first digital ultrasonic micro-electro-mechanical system (MEMS) microphone is poised to change the way we interact with our mobile devices. Later this year advanced models will be shown that enable the user to control on-screen actions by waving, pointing, and molding on-screen images like clay. The ultrasonic field at 80kHz will extend in 3D both above and beside the screen so that users no longer have to cover-up the screen items they are controlling with their fingers. Knowles Corp. (Itasca, Ill.) will be leading the way with the first MEMS mic exclusively designed for accurate ultrasonic finger tracking, but the allure of 3D screen control is sure to spread quickly.

"Ultrasonics offers a broader space of control and command than touch alone, it covers a lot wider space above the device than just the size of the screen -- so your hand is not always obscuring your view of the screen. Also you can define new gestures such as moving your hand from bottom to top to move to the next line, or moving from side to side to bring up and adjacent screen," Thibault Kassir, senior director, Product Management, Mobile Consumer Electronics, told EE Times. "The other advantage of ultrasonics is the 3-D depth-effect -- you can define algorithms to use the third dimension for control -- for instance to zoom in or out by bringing your hand closer or further away from the screen."

For more information visit: http://www.eetimes.com/document.asp?doc_id=1322781&_mc=RSS_EET_EDT

 

 
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