Floating coordinate system
US4334124A · kind A · utility
19Cited by
15References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1980 |
| Grant date | Jun 8, 1982 |
| Priority date | — |
| Expiry date | Mar 26, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/046
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for determining the position of a cursor with respect to a floating coordinate system, such as a menu. The floating menu incorporates two sensing devices similar to that in the cursor. A processing unit determines the position of the two sensing devices and the position of the cursor with respect to a fixed coordinate system. From this data the position of the cursor with respect to the floating menu is determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.