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Method and Apparatus for Performing Pointing Device Movements from Physical Object Placement on a Projected Image Disclosure Number: IPCOM000023303D
Original Publication Date: 2004-Mar-29
Included in the Prior Art Database: 2004-Mar-29

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Image projectors find common use in situations where a presenter projects a computer screen onto a large surface. When the presenter wishes to demonstrate something interactively, he must break the natural flow of the presentation by turning his attention to the computer and using the pointing device on the computer to navigate the application on the screen. Devices such as a wireless mouse or a laser pointer help aid the presenter in focusing attention on the projected image, but the laser pointer does not move the mouse, and the wireless mouse is cumbersome to use. The solution herein described allows a presenter to interact with the projected image while maintaining focus on that image. Position recognition technology on a two-dimensional surface is utilized, effectively allowing the presenter to act as a human mouse. The presenter approaches the projected image and presses his finger onto the image at the point where he wants the mouse to move, and sensors surrounding the projection surface detect his finger's position, moving the cursor and window focus accordingly.