Commands functions invoked from movement of a control input devi

Details Commands functions invoked from movement of a control input devi Commands functions invoked from movement of a control input devi

1995-01-19

1998-04-28

Powell, Mark R.

Computer graphics processing and selective visual display system

Display driving control circuitry

Controlling the condition of display elements

345145, G06F 300

Patent

active

057457190

ABSTRACT:
A method for expanding the command capabilities of pointing devices based on periodically sampling a cursor's position on a display device and analyzing the time-variation of a cursor-heading signal obtained from said samples. Upon detecting characteristic cursor-heading time-variation profiles in the cursor trajectory, commands signals are generated so that moving the cursor along particular trajectories is equivalent to activating virtual-buttons of said pointing device. A plurality of applications of the invention and a variety of embodiments are discussed.

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