Patent References 3611348 3891792 4091234 System with joystick to control velocity vector of a display cursor CRT video text layout system having horizontal scrolling Control means to provide slow scrolling positioning and spacing in a digital video display system Video game apparatus and method Dot matrix display apparatus Data input device One line text display with two input locations InventorAssigneeApplicationNo. 06/572061 filed on 01/19/1984US Classes:345/156, DISPLAY PERIPHERAL INTERFACE INPUT DEVICE345/174Including impedance detectionExaminersPrimary: Curtis, Marshall M.Assistant: Kovalick, Vincent E. Attorney, Agent or FirmInternational ClassesG06F 3/023 (20060101)G06F 3/033 (20060101) Foreign Application Priority Data1983-01-26 GBAbstractA data display control arrangement in which apparatus for scrolling lines of data relative to a display area of a data display apparatus (1) comprises means (2) for producing a selectively controllable scrolling action, the means (2) including a transducer device (16) comprising two groups (18A, 18B) respectively including two sets (20,21) (24,25) of elctrical contact tracks 19 and an elastomeric pad which includes a non conductive member 27 is loaded with conductive material, whereby pressure on the member (27) changes the conductivity thereof and in so doing progressively interconnects the tracks of the sets (20,21) (24,25) to produce analogue signals related to extent of pressure. A converter 9 converts the analogue signals to digital signals which are used to control said scrolling. | |