Cursor control device for use with display systems
Patent 4464652 Issued on August 7, 1984. Estimated Expiration Date: 
July 19, 2002. 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.
July 19, 2002. 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 References 3395589 3541541 3625083 3835464 Cursor position device Device for delineating zones in a video image display Interactive display system with touch data entry Cursor position controller for a display device Trackball device Patent #: 4404865 InventorsAssigneeApplicationNo. 06/399704 filed on 07/19/1982US Classes:345/165, Photosensor encoder715/810, Menu or selectable iconic array (e.g., palette)715/856, Cursor74/471XYControl moves in two planesExaminersPrimary: Brigance, Gerald L.Attorney, Agent or FirmInternational ClassG06F 3/033 (20060101)AbstractA cursor control device having particular application to a computer display system is disclosed. The cursor control includes a unitary frame, having a domed portion substantially surrounding and retaining a ball which is free to rotate. X-Y position indicating means are provided, such that rotation of the ball provides signals indicative of X-Y positions on the display system. The ball is free to "float" in the vertical direction within the dome, and thereby maintain good surface contact. X-Y positions are established by movement of the control device over a surface. A display system and method is disclosed for use in conjunction with the cursor control device, which permits a user to select command options simply by movement of the displayed cursor over a "pull-down" menu bar. | |
