Cursor device with zero-point resetting
US5252952A · kind A · utility
45Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1991 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Aug 13, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2221/078
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A cursor control device moves from a precise zero rest position to define x-y coordinates for moving a cursor on a computer screen. When an actuating force is removed, the deflected control device is precisely returned to its zero rest position by operation of springs. The device provides relative cursor position data by reference to the zero rest position. The position data is converted to electrical signals which are utilized to position the cursor on the screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.