DEPARTMENT OF COMPUTER APPLICATION
Skinput TechnologySUbMITTED by
How it works
Skinput in future
Skinput is a technology which uses the
surface of the skin as an input device.
To capture this acoustic information ,
they developed a wearable armband that is
non-invasive and easily removable.
It was developed by Chris Harrison,
Densely Tan, and Dan Morris of the
Microsoft Research's Computational User
Skinput allows the user to simply
tap their skin in order to control
audio devices, play games, make phone
It uses the sensors to determine where
the user taps on their skin.
Its first public appearance was at
Microsoft's Tech Fest 2010
PRINCIPLE OF SKINPUT
It listens to vibrations in your body.
Skinput also responds to the various hand
The arm is an instrument.
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,
Skinput, the system is a combination of
the ability to detect the ultra low
the ‘Pico’ projectors
Pico projector applies the use of projector in a
hand held device.
An acoustic detector detects the ultra low
PICO- PROJECTORPICO- PROJECTOR
A very small projector, basically used
The system comprises three main parts:
The Laser light source
The Combiner optics
The Scanning mirror
BIO- ACOUSTICSBIO- ACOUSTICS
Study of sound waves inside living body.
When a finger taps the skin, several
distinct forms of acoustic energy are
These waves form the integral part of
the whole concept of skinput.
BIO- ACOUSTICS: SENSINGBIO- ACOUSTICS: SENSING
These signals need to be sensed and worked
This is done by wearing the wave sensor arm
HOW IT WORKSHOW IT WORKS
• In Skinput, a keyboard, menu, or other graphics
are beamed onto a user's palm and forearm
from a pico projector embedded in an armband.
• An acoustic detector in the armband then
determines which part of the display is
activated by the user's touch.
• Their software matches sound frequencies to
specific skin locations, allowing the system to
determine which “skin button” the user
IMPLEMENTATION ON PARALYZED PERSON OR
PHYSICALLY DISABLE PERSON.
•If a person is paralyzed or physically disable we can
implement this technology. The feature of skinput
technology provides a projected graphical interface on
the skin, so the person who is paralyzed or physically
disable they can use it easily like making a call,
playing game, control music player application etc.
IMPLEMENTATION IN EDUCATION
Through the help of Skinput technology we can
implement in education system like we can use
calculator or browsing through a mobile phone
USING FINGERS AS CONTROL PAD OF
• Through Skinput we can play games with just
the movement of our hands. This will
introduce a totally new era of gaming.
Making a Phone Call Using
• We can turn our arm into a cellphone It will
be possible to make calls by just typing
numbers that flash on your
• forearm. All other functions can also be
performed using Skinput. We can also increase
or decrease the volume or
• change the track of our music players like
the i-pod without actually touching the
Controlling Music Player
Applications Using Skinput
No need to interact with the gadget
Don’t have to worry about keypad.
People with larger fingers get trouble in
navigating tiny buttons and keypads on
mobile phones. With skinput this problem
• Though the band seems easy enough to slip
on, many people would not wear a very big
band around their arm for the day.
• Not enough research has been conducted on
this product to test the possible skin
diseases or types of cancer, one can get
from using this product.
• This technology might start up at very
high cost which will not be affordable
for the common man.
SKINPUT IN FUTURESKINPUT IN FUTURE
• The most profound achievement of Skinput
is proving that the human body can be
used as a sensor.
• A person might walk toward their home,
tap their palm to unlock the door and
then tap some virtual buttons on their
arms to turn on the TV and start flipping
• Extensive Research is going on Currently
on Skinput to
make the armband more smaller.
Incorporate More Devices with This
Extend accuracy level.
• Skinput allows the human body as an inputSkinput allows the human body as an input
• It describes a novel, wearable bio-It describes a novel, wearable bio-
acoustic sensing array that we built intoacoustic sensing array that we built into
an armband in order to detect andan armband in order to detect and
localize finger taps on the forearm andlocalize finger taps on the forearm and
• This system performs well even when theThis system performs well even when the
body is in motion.body is in motion.