Controller for improved computer pointing devices
December 14, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesCursor control Cursor controller Adapter circuit for trackball device Control system for positioning a marker on a cathode-ray tube display Method and means for automatically variably controlling display parameters Method and apparatus for wireless cursor position control Coordinate-data input device for CRT display having cursor travel control means Position control apparatus Touch activated control method and apparatus Inertial mouse system InventorsAssigneeApplicationNo. 572194 filed on 12/14/1995US Classes:345/159Having variable cursor speedExaminersPrimary: Hjerpe, RichardAssistant: Mengistu, Amare Attorney, Agent or FirmForeign Patent References
International ClassG09G 005/08AbstractInput force applied on a pointing device (51) having outputs (x,y) is related to the velocity of a cursor on a video screen according to a transfer function (FIG. 2) substantially described by a parabolic sigmoid function, thus resulting in adapting the force/velocity relationship to accommodate human perception and motor control limitations and task specific coordination problems.Other References
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