Keyboard with thumb activated control key
US5620267A · kind A · utility
16Cited by
8References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1995 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Mar 29, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H13/84
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to an ergonomic keyboard with control key(s) located where a touch typist may activate the keys comfortably via one or both thumbs. The invention is suitable for use with a computer, word processor, electronic typewriter, or the like. It facilitates easy, ergonomic activation of the control function by a touch typist without the necessity of averting the eyes from the text to the keyboard, or uncomfortable stretching of the hands. The invention increases typing efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.