Compact keyboard with entry of keyed and graphic information
US4926010A · kind A · utility
22Cited by
1References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1989 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | Jun 30, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/046
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A keyboard is adapted for entry of graphical information into a computer by providing the keyboard with an extended, two dimensional member situated in overlapping relationship with at least one of the keys of the keyboard and which is adapted to generate for storage and display by the computer a signal designating a position on the member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.