Method and apparatus for detecting error strings in a text
US5715469A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1994 |
| Grant date | Feb 3, 1998 |
| Priority date | — |
| Expiry date | Jul 11, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/232
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for checking the spelling of words and character strings without the need for a stored dictionary of words and the memory required thereby. The system selects an error-free string and modifies it according to one or more rules which change the error-free string to a possible error string. The rules creating the possible error string can modify the error-free string by predictable character manipulation to yield usual and common errors of the character string. The frequency of occurrence of both the error and error-free strings within the text are determined. These frequencies are compared to each other and, based upon the comparison, the system decides whether the possible error string is an actual error string. The system can use modifying rules which are psychological or technically related to the computer system or operator, and rules which correspond to errors common with specialized input methods, such as character and speech recognition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.