Technology competition between giant companies in practical computer assembly has become more tight. The market demands technology companies to create new gadgets that are more handy, efficient, and can be used anywhere. Today, we can find super mini laptop, windows mobile, or even high capacity flash disk with small size but more efficiency than its predecessor.
And now comes a computer pheriperal that can ensure market demands. It is the virtual keyboard. Just imagine, you don't need to bring old keyboards that is "so big" and hard to bring. Virtual keyboard is as big as a 600ml of mineral water bottle. Practical, isn't it? A keyboard the size of a bottle. :-)
Here's how it works :
1. The infra red laser will display the keyboard shape according to the refracted surface level.
2. Transparent infra red refraction will be projected into the virtual keyboard.
3. Typing that was generated by finger will generate keystrokes.
4. Infra red reflection will pass through the infra filter into camera.
5. Then the camera will takes pictures according to the captured infrared reflection.
6. The sensor's chip will fix the position of damaged infrared rays, then translate it into coordinates
7. Created characters will appear on the screen by using the coordinates that received wirelessly.
Beside the practicality, this virtual keyboard can also be connected and used for PDA, phone line, pc tablet, and other appliances.
Thanks to the technology, we don't need to bring ordinary keyboard everywhere.
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