SEMINAR ON VIRTUAL KEYBOARD BY D E NT

SEMINAR ON: VIRTUAL KEYBOARD BY D E NT E ES R P BY VA L K A I s TH c R m KA th se 5

CONTENT � � � � Introduction What can you do with virtual keyboard? How does virtual keyboard work? Reasons to use virtual keyboard Uses of virtual keyboards Advantages of virtual keyboard References

Virtual Keyboard :

INTRODUCTION • A Virtual Keyboard is a projection keyboard. • A virtual keyboard is a software component that allows a user to enter characters. Virtual Keyboard is a keyboard simulation software running under Windows operating system. • It is the latest software in computing technology.

Cont’d • A virtual keyboard has an integrated software and/or hardware component which allows virtual keyboard users to type in characters. • A virtual keyboard can usually be operated with multiple input devices, which may include an actual keyboard, a computer mouse, a head-mouse, and an eye-mouse. • On a desktop PC, the primary purpose of a virtual keyboard is to provide an alternative way for disabled users who can not use a regular physical keyboard.

What can you do with a Virtual Keyboard? The ground breaking Virtual Keyboard, uses state of the art infrared & laser technology to project a full-size keyboard onto any flat surface. For the first time mobile device users can actually type normally on a virtual keyboard , enabling them to work quickly and effectively, taking the pain and frustration out of existing minuscule keyboards and handwriting recognition software.

How does the Virtual Keyboard Work? The keyboard watches finger movements and translates them into keystrokes in the device. A system called the P-ISM will combine the virtual technology with a small video projector to create a portable computer about the size of a fountain pen.

Technical Terms Projection Module – A template is created of the desired interface and is projected onto the adjacent interface surface. This template is produced by illuminating a specially designed highly efficient holographic optical element with a red diode laser. Micro-illumination Module – An infa-red plane of light is generated just above, and parallel to the interface surface. This light is invisible to the user and hovers a few millimeters above the surface. Sensor Module – Reflected light from user interactions with the interface surface is passed through an infa-red filter and imaged onto a CMOS image sensor in the sensor module.

Reasons to use the Virtual Keyboard. It takes up less desk space than a conventional keyboard. v When connected to your handheld computer it is more convenient to carry around than your laptop. v You could use it with your desktop, laptop or handheld computer. Ex. Operation Theater v

Uses of Virtual Keyboards BY PROFESSIONALS To take notes during a business meeting To compose a memo to employees while traveling to work on the train To do everyday work at your desk without taking up BY STUDENTS To take notes while in class (no one will hear your keying) To work on a paper while in the library To do homework while you are on break at work

ADVANTAGES • • Portability Accuracy Speed of text entry Lack of need for flat or large typing surface Ability to minimize the risk for repetitive strain injuries No disturbance. Keyboard layouts can be changed by software allowing foreign. High battery Life.

DRAWBACKS • It is very costly than normal keyboards. • It’s projections does not see properly in bright light.

CONCLUSIONS Virtual keyboards are more convenient & compact than THE QWERTY keyboards. Canesta appears to be the most advanced in this class of technology. Thus virtual keyboards will take typing easier, faster, and all most a pleasure.

I-Tech Virtual Keyboard Blue Tooth or Serial Only $199. 99 www. Virtual-Laser-Keyboard. com

Celluon Bluetooth Virtual Keyboard $148. 50 www. negrielectronics. com

URL REFERENCE LIST www. wikipedia. org www. virtual-laser-keyboard. com www. negrielectronics. com

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