SHAFT/BEARING ARRANGEMENT FOR A POINTER ASSEMBLY
Original Publication Date: 1980-Dec-31
Included in the Prior Art Database: 2004-Apr-02
Xerox Disclosure Journal
A pointer assembly refers to a cursor positioning device used in conjunction with a CRT display terminal. Displacement, speed and direction of' the cursor are provided by the pointer. The pointer is a handheld device operated by rolling it over a flat surface. The movements are converted first to the rotation of a tracking ball and then to the rotation of two encoders (at right angles to each other) which digitize its movement.