Patent · US Active

Scalable document signature search engine

US8266150B1 · kind B1 · utility

15Cited by

3References

11Claims

0Family size

Assignee

Trend Micro Incorporated · JP

Inventors

Yingqiang Lin · Sunnyvale, US
Liwei Ren · Sunnyvale, US
Dehua Tan · San Jose, US

Key dates

Filing date	Feb 2, 2009
Grant date	Sep 11, 2012
Priority date	—
Expiry date	May 14, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG06F16/316
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A document signature index and search system is disclosed. The logical structure of the signature index that includes search tables is defined. Also specified is a system of creating, managing and using the signature index. The system includes an index engine and search engine. The search tables are compact in disk usage and suitable for differential computation, making large scale deployment feasible. With the introduction of meta-data and an algorithm of multiple value dual binary searching, the search engine based on the search tables is very efficient in searching for signatures from large search tables which may store millions of signatures. Other embodiments, aspects and features are also disclosed.

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