Projection keyboard
The invention discloses a method for judging the movement track of a moving object and novel keyboard technology, and relates to a projection keyboard, which comprises a small projection system, two cameras and an image processing unit. The projection system is used for projecting images of the came...
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| Format | Patent |
| Language | Chinese English |
| Published |
27.06.2012
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| Subjects | |
| Online Access | Get full text |
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| Summary: | The invention discloses a method for judging the movement track of a moving object and novel keyboard technology, and relates to a projection keyboard, which comprises a small projection system, two cameras and an image processing unit. The projection system is used for projecting images of the cameras onto a desktop, the cameras are used for shooting keyboard images on the desktop, fingers of a user are recognized by analyzing the images, moving angles of fingertips are computed, and characters corresponding to buttons with points contacting with the fingertips are inputted into a host system to complete key-stroke input once. The technology is applicable to portable equipment such as a PAD, a mobile phone and the like, and capable of replacing a keyboard to function in character inputting. Besides, the technology is extremely high in portability, and is upgrade technology for a current mechanical keyboard. |
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| Bibliography: | Application Number: CN20111436843 |