Document-based query data for information retrieval
US6396951B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1998 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Dec 23, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99935
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To obtain a query for use in information retrieval, a document is scanned. The resulting text image data define an image of a segment of text in a first language. Automatic recognition is then performed on at least part of the text image data to obtain text code data including a series of element codes. Each element code indicates an element that occurs in the first language, and the series of element codes defines a set of expressions that also occur in the first language. Automatic translation is then performed on a version of the text code data to obtain translation data indicating a set of counterpart expressions in a second language. The counterpart expressions are used to automatically obtain query data defining the query. The query can then be provided to an information retrieval engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.