The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9280600 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 08, 2016

Filed:

Mar. 20, 2013
Applicants:

Yissum Research Development Company of the Hebrew University of Jerusalem Ltd., Jerusalem, IL;

Ramot AT Tel-aviv University Ltd., Tel Aviv, IL;

The Interdisciplinary Center, Herzliya, IL;

Inventors:

David Hay, Tel Aviv, IL;

Yaron Koral, Hod Hasharon, IL;

Anat Brembler-Barr, Ramat Hasharon, IL;

Shimrit Tzur-David, Givat Yearim, IL;

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01); H04L 12/26 (2006.01); H03M 7/30 (2006.01);
U.S. Cl.
CPC ...
G06F 17/30861 (2013.01); H03M 7/3084 (2013.01); H04L 43/028 (2013.01);
Abstract

A system and a method for decompression-free inspection of compressed data are provided herein. The method includes the following stages: obtaining a dictionary file comprising a string of symbols, each associated with a respective index; obtaining at least one delta file associated with said dictionary file, wherein said delta file comprises a sequence of instructions that include at least one copy instruction pointing to an index within said dictionary and a length of a copy substring to be copied; scanning said dictionary using a pattern matching algorithm associated with a plurality of patterns and implemented as a Deterministic Finite Automaton (DFA), to yield DFA execution data; scanning said at least one delta file, using said pattern matching algorithm, wherein said DFA execution data is used to skip at least part of the scanning of the copy substrings for at least one of the copy instructions.


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