Structures and methods for representing and processing documents
US4959769A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1987 |
| Grant date | Sep 25, 1990 |
| Priority date | — |
| Expiry date | Nov 17, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/166
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A document processing system including a document structure and a library of routines for manipulating the document structure. The components of the document structure are made up of individually-locatable blocks. The components include a chain of text blocks which contains at least one document page and includes at least one block, one or more chains of reference blocks, each chain containing a reference and including at least one reference block, information attributes in the text blocks which relate locations in the text of the document to item numbers referring to references, a page index which relates page numbers to the text blocks at which the pages begin, and a reference index which relates each item number to the first reference block in the chain containing the reference. The document structure may only be manipulated by means of routines in the document manager library. The routines in the library are accessible to programs such as editor programs and printing programs which manipulate documents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.