1) The Smart Quill is a pen invented by Lyndsay Williams of Microsoft Research that can transform handwritten notes into digital text without needing to write on a special pad. 2) It uses accelerometer technology and handwriting recognition software to detect the movements of writing and transcribe it to digital text, storing up to 10 pages of notes. 3) The pen has a small screen for reading stored information and powers off automatically when idle to save battery life. It allows handwritten notes to be transferred to other devices like phones and computers.

1. Presented by
Govind Raj
1001227464

2. INTRODUCTION
 Lyndsay Williams of Microsoft Research's
Cambridge UK lab is the inventor of Smart quill.
 It is a pen that is used to write and then transform to
computer text.
 Users don't have to write on a special pad in order to
record what they write.
 User can train the pen to recognize a particular
handwriting.
 Its really mobile, smaller size and skip the step of typing
up their notes.

3. WORKING OF SMARTQUILL
Push a button on the pen and start recording.
It does not need a screen to work.
small four-line screen to read the information stored in
the pen.
10 pages of notes can be stored.
A tiny light at the tip.
When the pen is kept idle for some time, power gets
automatically off.

4. FEATURES
Display technology used in smart quill.
Handwriting and signature verification.
Memory and power.

5. DISPLAY TECHNOLOGY
 Technology used for display is Kopin Corp’s Cyber
Display technology.
 Cyber Display is a ¼ inch diagonal LCD that uses the
circuitry built on a silicon wafer, then removed and
mounted to glass.

6. HANDWRITING RECOGNITION
There are 2 techniques used for this purpose :

Accelerometer technology.

Handwriting recognition software.

7. ACCELEROMETER TECHNOLOGY
It 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 a text.
Invisible writing in air is achieved through this
unique technology
It records movement by using the earth's gravity
system.

8. TYPES OF ACCELEROMETER
 There are 2 types of accelerometer :
1. Two Axes Accelerometer : This
accelerometer measures acceleration in two axes.
ex: ADXL202 Accelerometer.
2. Three Axes Accelerator : This accelerometer
measures acceleration in three axes.
ex: Tronics +/- 2g accelerometer.

10. HANDWRITING RECOGNITION
SOFTWARE
Handwriting recognition software constitutes two
major phases:
1. Handwriting transcription.
2. Handwriting recognition.

11. Handwriting transcription
 In this phase, the recorded acceleration signals are then
transcripted to it’s original form by simple double
integration method.
Method:
 In order for this principle to work properly, we have to
solve two main problems:
 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.

13. Fig represents the acceleration signals recorded
while one is writing a small capital B.

14. Handwriting Recognition
Method:
 The first step -1- consists in creating the reference
database for the characters as for the signature.
 The second step is the recognition process
1. For the creation of database, each symbol was
reproduced several times and a mean normalized
symbol was computed.
2. 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.

15. MEMORY
 Smart Quill has 4MB EEPROM memory.
 At a time, up to 10 pages of notes can be stored
locally on the pen.
POWER
 It makes use of AAA battery.
 This battery run for about 25hrs.
 The pen exhibits automatic turn on/off system.

16. APPLICATIONS
 The information stored in the pen can be input to
other devices such as mobile phones, printers,
modems, desktop computers etc for different
applications.

It also provides handheld computer applications
such as digital diary, contacts, calculators etc.
 Smart Quill can be used for voice record and supports
speech recognition.

Smart Quill also allows third party to add on
applications.

17. ADVANTAGES
One of the major asset is that Smart Quill does not need a
screen to work.
 Security –It is made possible through two facilities:
a. It enables handwriting recognition .User can train the
pen to recognize particular handwriting style.
b. It enables signature verification. Hence Passwords could be
entered in the form of signatures
 Power saving
a. Small screen size requires less battery power .
b. No movement of the pen causes auto power down.
 Smart Quill is all mobile, smaller in size and enables one-handed
use.

18. DISADVANTAGES
 It has accelerometer errors.
 It is inconvenient for persons with hand
tremulous.
 Bigger size than a normal pen.
 Errors are introduced in the system due to thermal
variations in the spring.

19. CONCLUSION
 The future of Smart Quill ensures all computation power
the user needs right inside the pen.
 Reducing the size of handheld computers can only be
taken so far before they become unusable. 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 Smart Quill is the best solution for
this problem.
 The day may come when we loose our distinctions
between the devices we use to interact with our computer
and the computer themselves.

20. BIBILOGRAPHY
 B.Milner, “Handwriting Recognition using acceleration based
motion detection”,IEEE ref.1999/041,1999
Anoto Website: www.anoto.com
www.google.com
BT Website :www.smartquill.com