Search engine cache control
US7840557B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2004 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Sep 30, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0875
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A search query containing at least one term is received at a search controller from a query server and preferably normalized and hashed into a representation of the search query. The representation of the search query is transmitted towards a cache containing multiple query result entries. Each query result entry contains a list of documents associated with the previously searched search query. The cache is then searched and query result entries for the search query are sent to the search controller from the cache. Subsequently, it is determined whether the query result entries are current versions for the search query. If the query result entries are not the current versions, then current versions of the query result entries are obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.