Electronic system pocketbook apparatus
US5109354A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1990 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Mar 30, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/0283
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronic system pocketbook apparatus includes a foldable and portable main body, an expansion card holder mounted on the main body, a necessary number of expansion cards held by the expansion card holder, and a communicating unit. The main body has a functions of right and left portions coupled by a cover, is folded upon carrying of the main body so that the right portion overlaps the left portion, a folded portion being fastened by a cover clip provided to the cover, and has basic functions of controlling arithmetic operations and display data processing by using an internal controller, data inputting means, and displaying data on a display unit. The communicating unit performs data transmission/reception between the held expansion cards and the main body via the expansion card holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.