Data processing system comprising a graphic tablet and a stylus, and stylus for use in such a system
US5750939A · kind A · utility
62Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1995 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | Dec 6, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/03545
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a data processing system including a graphic tablet and a wireless stylus cooperating with the tablet, the stylus transmits an electromagnetic field to be received by the tablet. The stylus has a detector whereby a disturbance of the field, caused by a means external of the stylus, can be detected. The stylus also includes a switch whereby the stylus can be switched to a power-saying standby mode in response to the disturbance. A contactless on/off switch is thus realized for the stylus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.