Electronic dictionary with plug-in module intelligence
US4218760A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 11, 1978 |
| Grant date | Aug 19, 1980 |
| Priority date | — |
| Expiry date | Sep 11, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/58
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A portable electronic dictionary in a hand-held housing which mounts a plurality of alpha-numeric displays and a keyboard. A plug-in module contains a microcomputer and a ROM which stores a plurality of pairs of sequences of alpha-numeric characters and is searched by a central processing unit in the microcomputer under instructions stored as firmware in another ROM forming part of the microcomputer. One sequence of each stored pair is compared with a sequence which is entered into the keyboard and stored in a RAM also forming part of the microcomputer until a match is found. After one or more sequences have been entered into the keyboard and locations of matching pairs are stored in the microcomputer RAM, the pairs of stored sequences can be rolled across the display. Either sequence of each pair can be compared with a sequence entered into the keyboard.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.