Coordinate data generating apparatus
US5287120A · kind A · utility
25Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1992 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Oct 2, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/038
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An X-axis counter (101) and a Y-axis counter (102) detect velocities of the movement of a mouse in X-axis and Y-axis directions, respectively. A comparator (103) detects which of the velocities of the movement of the mouse in the X-axis and Y-axis directions is higher. An X-axis displacement amount correction data ROM (106) and a Y-axis displacement amount correction data ROM (107) correct a detection result by the X-axis counter (101) and a detection result by the Y-axis counter (102) with the same correction rate based upon detection results by the comparator (103) to output displacements in the X-axis and Y-axis directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.