Calibration of a system for tracking a writing instrument...
Camera-equipped writing tablet apparatus for digitizing form...
Camera-pen-tip mapping and calibration
Circuit control devices utilizing electronic display screen...
Circuit control devices utilizing electronic display screen...
Classifying, anchoring, and transforming ink
Combined writing instrument and digital documentor
Combined writing instrument and digital documentor apparatus...
Computer input device
Computer input pen apparatus
Computer input stylus and color control system
Computer input stylus and texture control system
Computer input stylus and thickness control system
Computer input stylus method and apparatus
Computer input system utilizing a camera to sense point source
Computer stylus and computer adapted to be used therewith
Computer stylus with integrated memory
Computer system
Computer system interface surface with reference points and...
Control of a unit provided with a processor