SKINPUT

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SKINPUT

• Turns human body into a touch screen finger input
• Interface.

By, M.PRATHYUSHA 07P61A1261 IT-B
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• Different technology was introduced based on
  using the input devices
• 1.speech input
• 2.wearable computing
• 3.smart fabric
• 4.sixth sense
• 5.skinput (combination of on body sensing
  and projection)

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INTRODUCTION

• This technology was introduced by CHRIS HARRISON
• a graduate student from Carnegie Mellon
  University.
• Skinput is an input technology mainly used
  to control mobile devices.
• Skinput is named because it uses the human skin
  as a input device or tracking surface.

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• It was introduced based on a simple concept
  of reading the acoustic signals resulting from a
  finger tap on a human body.
• Skinput is basically a system of using projector
  to display a screen onto your forearm or hand.

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• A wearable, bio-acoustic sensing array built into
• an armband. Sensing elements detect vibrations
  transmitted through the body. The two sensor
  packages shown
• above each contain five, specially weighted,
  cantilevered
• piezo films, responsive to a particular frequency
  range.

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COMPONENTS

• Arm band device consists of two components
• 1. Projector
• 2. Detector

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MECHANISM

• Arm band  detects the acoustic signals and
  convert them to electronic signals which easily
  enable the users to perform simple tasks as
  browsing through a mobile phone menu, making
  calls, controlling portable music players, etc.. 

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• Skinput sensors track the vibrations created by
  tapping on forearm using an armband and display
  it.
• Skinput technology works by listening for the
  sounds made by finger tapping on
  a particular part of the human body
• EX Tapping close to your wrist would result in a
  slightly different sound than tapping closer to
  the elbow.

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• projector display image on arm
  finger tap on arm
  
• 
  vibrations produced
  and passed
• 
  through bones
  onto skin
• 
  
  
• electronic signals produced
  then detected by detector in armband
• in the form of music etc
• 
  

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• Tapping on the different part of your arm it
  creats longitudinal waves that cause internal
  skeletal structures to vibrate which inturn
  passes from bone to skin.

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Accuracy
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APPLICATIONS

• The Skinput system could display an image of a
  digital keyboard on a person's forearm.
• Using Skinput, someone could send text messages
  by tapping his or her arm in certain places 
• while Walking and jogging, we can listen to
  music.

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Using Skinput, a person could tap their thumb and
middle finger together to answer a call touch
their forearm to go to the next track on a music
player or flick the center of their palm to
select a menu item.
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CONCLUSION In this paper, we have presented
our approach to appropriating the human body as
an input surface. We have described a novel,
wearable bio-acoustic sensing array that we built
into an arm band in order to detect and localize
finger taps on the forearm and hand. These
include single-handed gestures, taps with
different parts of the finger, and
differentiating between materials and objects. We
conclude with descriptions of several prototype
applications that demonstrate the rich design
space we believe Skinput enables.
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• THANK YOU