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A laser projection keyboard used with a tablet. A laser or beamer projects visible virtual keyboard onto level surface. It is a modern input device. A sensor or camera in the projector picks up finger movements. Software converts the coordinates to identify actions or characters. [1] Some devices project a second (invisible infrared) beam above ...
For those on the go, a physical keyboard can be a hassle. Save some room with this laser projection keyboard.
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Virtual keyboards are commonly used as an on-screen input method in devices with no physical keyboard where there is no room for one, such as a pocket computer, personal digital assistant (PDA), tablet computer, or touchscreen-equipped mobile phone. Text is commonly inputted either by tapping a virtual keyboard or finger-tracing. [10]
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Three Dimensional gesture controls can be used to control tablets and computers, 3D representation of hand can be used to navigate around in operating systems instead of a mouse, user can tap onto virtual keyboard to type, a pinching action can be used to zoom into image or documents etc. [1]
The keyboard sends the key code to the keyboard driver running in the main computer; if the main computer is operating, it commands the light to turn on. All the other indicator lights work in a similar way. The keyboard driver also tracks the shift, alt and control state of the keyboard.
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related to: the virtual laser keyboard