Spelling check dictionary with early error signal
US4783761A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 1985 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Dec 26, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/232
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for adding a low-cost spelling check dictionary feature to document preparation systems such as portable electronic typewriters, the spelling check being performed on a character-by-character basis and an error signal emitted upon the earliest determination that an input character does not conform to that of any word listed in the dictionary. Semiconductor ROM is used for storage of the dictionary listing and for program control of the spelling check. Text compression methods are utilized to permit storage of large vocabularies (about 35,000 words) while minimizing the ROM capacity required (about 3 IC's of 256K bits each).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.