Projection keyboard input device (1 résultats)

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A projection keyboard is a form of computer input device whereby the image of a virtual keyboard is projected onto a surface: when a user's fingers are placed on the projected 'keys', the device translates them into keystrokes. An optical virtual keyboard was invented and patented by IBM engineers in 1992. It optically detects and analyses human hand and finger motions and interprets them as operations on a physically non-existent input device like a surface having painted or projected keys. In that way it can emulate unlimited types of manually operated input devices. All mechanical input units can be replaced by such virtual devices, optimized for the current application and for the user's physiology maintaining speed, simplicity and unambiguity of manual data input.…