smart quill ( by sarath kumar )
DESCRIPTION
Smart quill is an electronic gadget that lets you take down your notes, send it to your laptop and store it easily.TRANSCRIPT
-Presented by P Sarath kumar & M Naga seshu
JNTU college of engineering, Anantapur
About
Inventor Lyndsay William of Microsoft Research in March,
1997
Basic Idea "it would be neat to put all of a handheld-PDA type
computer in a pen" It is the pen for the new millennium. All the computing power you need, right in your
pocket.
Introduction Digital Pen…….????
A digital pen is a battery-operated writing instrument that allows the user to digitally capture a handwritten note or drawing.
Digital Pen
How smart quill differs from digital pens????
Digital pens require special pads for writing. But smart quill can be used on any sort of paper.
Smart quill contains sensors that record movements by using earth’s gravity irrespective of the platform used.
Special pad for Digital pens
SMART QUILL CAN BE USED ON ANY SURFACE
Features
Display Screen The text written can be read on on a tiny screen
on the side of the pen and used with personal information-management software, email, and other applications that will be built in.
It has a light at its tip which allows the user to use it even in the dark
DISPLAY SCREEN
HANDWRITING RECOGNITION AND SIGNATURE VERIFICATION
User can train the pen to recognize a particular handwriting.
If someone else picks your Smart Quill and tries to write with it- it won’t.
DISPLAY SCROLLS USING TILT SENSORSThe pen's tilt sensor could also be used to
control the cursor on a computer screen.
By tilting the pen user can chose applications and scroll through without using scroll buttons.
This is done by using Micro Electro-Mechanical Systems(MEMS) tilt sensors to measure tilt angle with earth
COMMUNICATION WITH OTHER DEVICES
The current prototype hooks up to the PC via a cable and electronic docking station called as “ inkwell “.
Future models can receive email and pager messages via a wireless messaging system.
MemoryIt uses 4MB EEPROM .
Up to 10 pages of notes can be stored locally on the pen memory.
The data is stored in the pen locally until it is copied to the Personal Computer.
PowerSmart quill works on AAA battery. It can
continuously work 25 hrs with a single AAA battery.
The pen has automatic on/off system.
AAA Battery :Antiaircraft Artillery Battery.
Size:44.5mm Long and 10.5mm in the diameter.
Weight:11.5 gm.
AAA BATTERY
Working
Smart quill works by measuring the pen’s movements and matching them to the movements that produce the words and letters programmed into its memory.
Consistency of handwriting rather than neatness, is the only condition for accuracy.
Working
Accelerometer Technology
Handwriting recognition Software
Accelerometer Technology
This technology uses a device called Accelerometer which is used for measuring motion.
A tiny accelerometer in a pen could be used to detect the stops and starts, arcs and loops of handwriting, and transmit this information to a small microprocessor that would make sense of it as text.
Accelerometer Technology
Invisible writing in air is achieved through this unique technology called accelerometer that monitors hand movements and can also be used as a ‘virtual hinge’ to scroll around the small screen on the pen and detect left or right-handed use.
It records movement by using the earth's gravity system, whether you write on paper or in the air. Hence it is independent of surface used. Movements are stored within the SmartQuill.
Types of Accelerometers in use
Two Axes Accelerometer This accelerometer measures acceleration in two
axes. An example for Two Axes Accelerometer is ADXL
202 Accelerometer.
Three Axes Accelerator This accelerometer measures acceleration in three
axes. An example for Three Axes Accelerometer is Tronics +/- 2g accelerometer
HANDWRITING RECOGNITION SOFTWARE
This software embedded in the microprocessor of the pen is used to recognize handwriting of the user.
The handwriting recognition software translates movements in to text on screen.
Phases in handwriting recognition 1. Handwriting transcription
In this phase, the recorded acceleration signals are then transcripted to it’s original form. Here this aspect is solved using ‘simple’ double integration method in order to retrace the pen tip movement on paper.
Method Firstly, we have to know pen’s spatial orientation in
order to withdraw the earth gravity component to the measured accelerations.
Secondly, we have to succeed in the double integration, which is to solve all the derivation problems due to this method.
HANDWRITING RECOGNITION
In this phase the characters and signatures are recognized.
MethodWe use a simple Euclidian distance as the
comparison process, and of course the decision process is the smaller distance found.
HANDWRITING RECOGNITIONSteps
The first step -1- consists in creating the reference database for the characters as for the signatures.
The second step is the recognition processFor the creation of database, each symbol was
reproduced several times and a mean normalized symbol was computed.
For recognition process, the unknown symbol is first normalized, the distance between this symbol and the entire database symbol is computed. Then the unknown symbol is recognized as the one with the lowest distance.
PROTOCOL
Fig. represents the acceleration signals recorded while one iswriting a small capital B.
PROTOCOL
In Fig , we can see the accelerometers signals recorded duringYani’s signing process.
ADVANTAGES
"Spatial Sensing" system
SmartQuill, a spatial-sensing device inside the pen detects the letterforms of the pen's movement and converts them into text.
The SmartQuill does not need a screen to work
ADVANTAGES
Intuitive user interface
User could use any surface for writing such as paper, tablet, screen or even air.
It contains an ink cartridge so that users can see what they write down on paper.
ADVANTAGES
Security
User can train the pen to recognize a particular handwriting.
Hence SmartQuill recognizes only the owner’s handwriting.
ADVANTAGES
3D-Mouse
People could use the pen in the office to replace a keyboard, but the main attraction will be for users who usually take notes by hand on the road and type them up when returning to the office
ADVANTAGES
Power saving
SmartQuill is really a very smart pen that could control everything by itself.
When the pen is kept idle for some time ,power gets automatically off. And thus saves the power.
ADVANTAGES
SmartQuill is all mobile
"As more and more people are working out of the office and rather than lugging around huge laptop computers, these are something people are much more comfortable with -- writing."
APPLICATIONS
1.Replace keyboard with SmartQuill2.Input to other devices3.Handheld computer applications4.The wireless messaging system which allows
two way communications 5.Supports speech recognition. 6.Third party to add on applications
APPLICATIONS7. To do list8. Personal diary planner9. Database - names and addresses10.Synchronize files, e-mails, messages to PC11.Clock and Alarms12.Calculator13.Pager
PROTOTYPE
CONCLUSION
The estimated cost of this futuristic pen is only $100.
SmartQuill supports two factors : small size and convenient use.
Keyboards become so tiny you require needle-like fingers to operate them and screens that need constant cursor controls to read simple text. The introduction of SmartQuill is the best solution for this problem.
