Method and apparatus for finding the location of a pointing instrument on a tablet
US5986646A · kind A · utility
20Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Jul 22, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/046
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention is related to a method and apparatus for locationing a instrument of tablet, wherein a very simple equation is used to locate a instrument, for example, a stylus pen. The stylus pen location on the a sense line grid which formed by a set of spaced conductors is converted to a digitized number and can be reported to the host computer for controlling the screen cursor or making a sketch drawing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.