Portable computer with trackball mounted in display section
Patent 5208736 Issued on May 4, 1993. Estimated Expiration Date: 
May 18, 2012. 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.
May 18, 2012. 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.InventorsAssigneeApplicationNo. 885121 filed on 05/18/1992US Classes:361/681, Including display support345/167, TrackballD14/327Screen attached at rear edgeExaminersPrimary: Picard, Leo P.Assistant: Phillips, Charles E. Attorney, Agent or FirmInternational ClassesH05K 007/02G06F 001/16 AbstractA pointing device according to the present invention includes a trackball embedded in the case of a computer display. The trackball is placed adjacent to the display and the select buttons for the trackball are located on the backside of the display case behind the trackball. The user guides the trackball with his thumb and pushes the select buttons on the backside of the case with his index and middle fingers, allowing the user to operate the pointing device with only one hand. Alternatively, the trackball is embedded in the corner of the keyboard of a desktop system, with the select buttons on the opposite side of the keyboard behind the trackball. With the keyboard standing on legs, the user's fingers can reach the two select buttons opposite the trackball to operating the pointing device.Other References
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