Integrating pointing device
Patent 4719455 Issued on January 12, 1988. Estimated Expiration Date: 
January 24, 2006. 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.
January 24, 2006. 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 ReferencesKeyboard switch Finger actuated electronic control apparatus Patent #: 4654647 InventorApplicationNo. 06/821962 filed on 01/24/1986US Classes:345/184, Mechanical control (e.g., rotatable knob, slider)200/18, Plural switch200/5A, With independent operators345/157Cursor mark position control deviceExaminersPrimary: Birmiel, Howard A.Attorney, Agent or FirmInternational ClassesG06F 3/023 (20060101)G06F 3/033 (20060101) AbstractA pointing and control device for moving a cursor on a visual display and for controlling various operations, being operated by hand and finger movements, including both fine movement control and gross movement control; the assembly includes a graspable outer cover and an inner puck with a finger cup movably supported by a series of elements, a laser beam movement detector consisting of high and low frequency scanners, drivers, lower and upper photodetectors and signal amplifiers and processors. The entire assembly may be either fixed on a keyboard or operated as an independent accessory. | |
