发明名称 |
GRAPHICS DISPLAY POINTER WITH INTEGRATED SELECTION |
摘要 |
A threshold discrimination filter circuit compares an amplitude and rate of change of amplitude of an output of a graphic input device such as an isometric joystick including strain gauges and a fixed resistance in a hierarchical voltage divider with threshold reference signals and corrects the output of the graphic input device based on previously stored samples thereof when a selection or deselection action by a user is discriminated. Outputs of the graphic input device are supplied directly to a CPU of a data processing device between masking periods so that graphic manipulations such as dragging can be performed while masking unintended change of specified display location during selection and deselection. |
申请公布号 |
KR100187869(B1) |
申请公布日期 |
1999.06.01 |
申请号 |
KR19950041615 |
申请日期 |
1995.11.16 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION. |
发明人 |
RUTLEDGE, JOSEPH DELA;SELKER, EDWIN J. |
分类号 |
G06F3/038;G06F3/033;G06F3/048;(IPC1-7):G06F3/033 |
主分类号 |
G06F3/038 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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