Data compression for pen stroke input

Data compression in digitizing tablet

Data entry system

Data input board

Data input device with a circuit responsive to stylus up/down po

Data input device with a pressure-sensitive input surface

Data processing information input using optically sensed stylus

Data processing system comprising a graphic tablet and a stylus

Data processing system comprising a graphic tablet and a stylus,

Data secure digitizer control circuit and method

Detector constructed from fabric having planes with...

Determination of a position code

Device and method for detecting position using electromagnetic i

Device and method for detecting rotation angle

Device for detecting the displacement of a writing implement

Device for determining position coordinates

Device for determining position coordinates of points on a surfa

Device for digitalizing graphical data

Device for forming signals which are characteristic of the posit

Device for generating electric signals representing the position