This is the domain of Brad Armstrong the inventor.
Click below to access his issued U.S. Patents:
9081426 Image controller
8674932 Image controller
7345670 Image controller
6906700 3D controller with vibration
6693625 Controller with variable sensor(s)
6563415 Analog sensor(s) with snap-through tactile feedback
6559831 Analog controls housed with electronic displays for personal digital assistants
6538638 Analog controls housed with electronic displays for pagers
6532000 Analog controls housed with electronic displays for global positioning systems
6529185 Analog controls housed with electronic displays for electronic books
6518953 Analog controls housed with electronic displays for remote controllers having feedback display screens
6504527 Analog controls housed with electronic displays for computer monitors
6496449 Analog controls housed with electronic displays for clocks
6470078 Analog controls housed with electronic displays for telephones
6469691 Analog controls housed with electronic displays for hand-held web browsers
6456778 Analog controls housed with electronic displays for video recorders and cameras
6424336 Variable rate on-off messaging system
6415707 Analog controls housed with electronic displays for coffee makers
6404584 Analog controls housed with electronic displays for voice recorders
6400303 Remote controller with analog pressure sensor (S)
6351205 Variable-conductance sensor
6347997 Analog controls housed with electronic displays
6344791 Variable sensor with tactile feedback
6343991 Game control with analog pressure sensor
6310606 Multi-plane sheet connected sensors
6285356 Displacement joystick with compression-sensitive sensors
6222525 Image controllers with sheet connected sensors
6208271 Remote controller with analog button(s)
6198473 Computer mouse with enhance control button (s)
6135886 Variable-conductance sensor with elastomeric dome-cap
6102802 Game controller with analog pressure sensor(s)
5999084 Variable-conductance sensor
5589828 6 Degrees of freedom controller with capability of tactile feedback
5565891 Six degrees of freedom graphics controller