Digitizer tablet with pressure stylus
US5004872A · kind A · utility
30Cited by
2References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 14, 1989 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Nov 14, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/046
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A digitizer tablet using a pressure-sensitive pointing device preferably containing a linear transducer is provided with the means to convert linear pressure signals to logarithmically-related output counts. The conversion means is programmable to allow outputting of a logarithmically or a linearly related count for use by an application program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.