Patent · US Active

Providing access control for public and private document fields

US9288211B2 · kind B2 · utility

3Cited by
3References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 1, 2015
Grant dateMar 15, 2016
Priority date
Expiry dateMay 1, 2035

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F16/2457
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A computer generates a modified list of search terms by adding synonyms of the search terms and terms that are related to the search terms to a list of search terms. The computer removes frequently used words from the modified list of search terms. The computer responds to a determination that a user has authorization to view a field of a document by adding to the modified list of search terms an encrypted version of a search term included in a list of search terms. A search using the modified list of search terms returns a result that identifies the document as a search result when either the unencrypted or the encrypted version of the search term is found in a list of index terms associated with the first document.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.