DIGITAL PENDIGITAL PEN

Guided by : Mr. Biswaranjan Nayak

Submitted by : Manas Jagannath Regd No:- 0701289313

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The First Thought…

• The Digital pen is a pen that can remember the words that it is used to write, and then transform them into computer text.

• It allows you to write directly on any surface or on no surface at all (by waving it in the air).

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INTRODUCTION

1. Inventor

Lyndsay Williams of Microsoft Research

lab in March, 1997.

2. Basic Idea

“It would be neat to put all of a handheld- PDA type computer in a pen”.

Biggest revolution in handwriting.

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Handwriting Recognition & Signature Verification.

1. User can train the pen to recognize a particular handwriting.

2. If someone else picks your Digital Pen and tries to write it – it won’t.

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DISPLAY SCROLLS BY MEMS TILT SENSORS.

• By tilting the pen we can scroll through without using scroll buttons.

• This is done by using MEMS tilt sensors used to measure tilt angle with earth .

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COMMUNICATION WITH OTHER DEVICES

1. Early models used radio transmitters.

2. The current prototype hooks up to a PC via a cable and electronic docking station called as “inkwell”.

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MEMORY1. It uses 4MB EEPROM.

2. Up to 10 pages of notes can be stored locally on the pen memory.

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POWER

1. Digital Pen works on AAA battery. It can continuously work 25hrs.

2. The pen has automatic on/off system.

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WORKING

1. Works by measuring the pen’s movements.

2. Consistency of handwriting.

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Technology Used

a. Accelerometer Technology

b. Handwriting Recognition Software

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ACCELEROMETER TECHNOLOGY

1. Measures motion.

2. Detects 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.

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HANDWRITING RECOGNITION SOFTWARE

This software embedded in the microprocessor of the pen is used to recognize handwriting of the user.

This has 2 phases:

1. Handwriting Transcription.

2. Handwriting Recognition.

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APPLICATIONS

• Replace keyboard with Digital Pen.

• Input to other devices.

• Digital diary, calculators.

• Used for receiving pager and e-mail messages.

• Personal Diary Planner.

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ADVANTAGES

1. Does not need screen to work.

2. Security.

3. 3D – Mouse.

4. Power saving.

5. Mobile.

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DISADVANTAGES

• It has accelerometer errors.

• It is inconvenient for persons with hand tremors.

• Bigger size than a normal pen.

• Errors are introduced in the system due to thermal variations in the spring.

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CONCLUSION

. Reducing the size of handheld computers, 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 Digital Pen is the best solution for this problem.

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REFERENCES

• RNRT Stylocom project, notification n 0250016• E.Millien, C.Roux, “Users input to design of a “communicating pen”,Smart Objects Conference,2003• R.Baron, R. Plamondon, “Acceleration measurement with an instrumented for sign verification and analysis”,IEEE Trans.Vol IM-38• Anoto Website: http://www.anoto.com• BT Website :www.smartquill.com• B.Milner, “Handwriting Recognition using acceleration based motion detection”,IEE ref.1999/041,1999

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THANK YOU !

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