Keyless flat panel portable computer--computer aided notebook
US5049862A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1989 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Oct 6, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2200/1614
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A keyboardless portable computer simulates a foldable notepad and has a display which can be reoriented to the convenience of the user, carried in a self-protecting closed position and operated in any convenient open position. The computer has a first flat panel, a second flat panel and hinge means for joining the first panel to the second panel such that the first flat surface is juxtaposed to the second flat surface in a closed position and is disposed side by side in a common plane in one of a selection of open positions. The first flat surface comprises a first digitizer and the second flat surface comprises a second digitizer, and a stylus is provided which is connectable to at least one of the panels for interacting with at least one of the digitizers. One of the digitizers includes a flat panel display through which visual output is provided. Thus, registration of a written symbol on the surface of the panel produces a displayed symbol, preferably at the position of registration. The panels may be detachable at the hinge means, folded back to back to one another for compact usage and a second hinge on a digitizer panel permits a bound paper notebook to be interleaved with a …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.