Device for inputting data into electronic data processing means
US5812498A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1997 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Jan 27, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/04886
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The device comprises a keyboard wherein each key is associated with an underlying sensor sensitive pad which controls the input of data associated with said key in response to an application of a finger on such key, such sensitive pads being closely set together within a closed contour (V.sub.1, V.sub.2 ; V'.sub.1, V'.sub.2) having, for a user, an upper part (V.sub.1) and a lower part (V.sub.2) respectively adjacent to first and second series of pads, such device being characterized in that the areas of the pads (10, 11, 12, 13; 7, 8, 9, .div.) of the first series are on the whole greater than the areas of the pads (3 to 9; 0, ., =, +) of the second series.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.