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Virtual Keyboard ACKNOWLEDGEMENT
I take the opportunity to express my sincere thanks to Mr. Ramakrishnan K.S Assistant
Professor, MCA department for his valuable advice and guidance for the success of this seminar.
I also thank Mr. Ancil. S. Koomulil, HOD, MCA Dept. and all other staff of the department for
their kind co-operation extended to me. Also I am extending my gratitude to everyone who
helped me in the successful presentation of this seminar.
1 Nehru College of Engineering And Research Centre
Virtual Keyboard ABSTRACT
Computing is now not limited to desktops and laptops, it has found its way into mobile
devices like palm tops and even cell phones. But what has not changed for the last 50 or so odd
years is the input device, the good old QWERTY keyboard. Virtual Keyboard uses sensor
technology and artificial intelligence to let users work on any surface as if it were a keyboard.
Virtual Devices have developed a flashlight- size gadget that projects an image of a keyboard on
any surface and let’s people input data by typing on the image. The Virtual Keyboard uses light
to project a full-sized computer keyboard onto almost any surface, and disappears when not in
use. Used with Smart Phones and PDAs, the VKEY provides a practical way to do email, word
processing and spreadsheet tasks, allowing the user to leave the laptop computer at home.
2 Nehru College of Engineering And Research Centre
Virtual Keyboard TABLE OF CONTENTS NO. TITLE PAGE NO. 1. INTRODUCTION 5 2. QWERTY KEYBOARDS 6
2.1 Introduction2.2 Working2.3 Difficulties
7 3. VIRTUAL KEYBOARD 8 3.1 Introduction 3.2 Virtual Keyboard Technology 10 3.3 Different Types 14 3.3.1 Developer VKB 3.3.2 Canesta 15 3.3.3 Sense board Technologies 3.3.4 Kitty 17 3.3.5 InFocus 18 4. ADVANTAGES 19 5. DRAWBACKS 20 6. APPLICATIONS 21 7. CONCLUSION 22 8. REFERENCES 23 LIST OF FIGURES
Figure Title Page No Fig 3.1 Virtual keyboard used in PDA’s 9 Fig 3.2 Sensor Module 11 Fig 3.3 IR-light source 12 Fig 3.4 Pattern projector 13 Fig 3.5 Developer VKB 14 3 Nehru College of Engineering And Research Centre
Virtual Keyboardvirtual keyboard
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