Hand held computers with alpha keystroke
US5067103A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1990 |
| Grant date | Nov 19, 1991 |
| Priority date | — |
| Expiry date | Sep 28, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2219/011
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Particularly in hand held alphameric keyboard actuated computers, available room dictates a need to limit the number of keys without sacrificing computer performance. Further, for portable computers reference to an instruction manual is not feasible. Thus usefulness critically depends upon integrated operating instructions. Formerly there is neither room or facilities for instructions, nor room on the keyboard for enough keys. Herein, a computer keyboard of a few keys controlled by a computer multi-mode processing system to have a plurality of roles permits a very large number of computer functions to be entered and controlled. Further in combination with these roles, a computer organized temporary display panel displays keystroke selection indicia for the different keyboard operating roles. This expands instructional notation otherwise possible on the keys and adjacent keyboard locations. Thus, an entire set of alphabetic characters may be entered and processed in the computer by means of as few as six keys in an alpha mode operating the keys in a two stroke per character entry mode. Accordingly, the display panel is programmed by the computer to show with instructional indicia, t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.