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Multi Touch Screen

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					Multi Touch Screen

      Yong Du
    Ayyappan Iyer
Multi Touch Screen
       Multi touch Components

• Multi-touch consists of a touch screen or
  touchpad that recognizes multiple
  simultaneous touch points and software to
  interpret simultaneous touches.
         Sensing Technique
• FTIR(Frustrated Total Internal Reflection)
             Multi Touch History
•    Began in 1982 – University of Toronto & Bell
     Labs.

•    Further Enhancements – University of
     Delaware: 1990.
a)   Sophisticated 2-handed typing & gesture systems.
b)   Basis for iGesture mousepads & touchscreen
     keyboards by FingerWorks: 2001.


•    Founders joined Apple: 2005.
Jefferson Y. Han
        • Research Scientist at
          New York University’s
          “Courant Institute of
          Mathematical Sciences.
        • Owner of Perceptive
          Pixel, Inc.
        • Developer of interface-
          free touch driven screens.
        • Developer of various
          customized graphic
          applications to be run on
          multi touch screen.
 Products using this technology
• Lemur Input Device – 1st commercial multi-touch display:
  2005.
• Apple iPhones – 2007.

Other products using multi-touch with more diverse finger
  gestures:
• Apple's iPod touch, MacBook Air & Microsoft’s Surface Technology.


Apple’s plan to implement above technology in following
  generations of MacBook and MacBook Pro Notebooks,
  similar to iPhones & MacBook Air.
           Unique features
• Multiple independent touch senses.
• Customizable to use any compatible
  software and applications.
• Rotation of 3D Images in either direction.
• Support for multiple interactive user
  sessions.
   Potential future applications of
             technology
• Graphic Designing.
• Interactive maps.
• Computer screens – keyboards and
  mouse interaction using fingers.
• Games.
• Military & Space Command Control
  Centre.
 Sample Multi Touch Demo Video
http://www.youtube.com/watch?v=he-
  j1BbZf58

				
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posted:9/27/2011
language:English
pages:10