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.:
Date of Patent:
Sep. 29, 2009
Filed:
Oct. 05, 2005
Kiem-phong Vo, Berkeley Heights, NJ (US);
Kiem-Phong Vo, Berkeley Heights, NJ (US);
AT&T Intellectual Property II, L.P., Reno, NV (US);
Abstract
A method for computing matching windows for delta compression. The method computes pairs of matching source and target data segments irrespective of target data segment size or file offset. The method includes (1) representing a large source data file by a sequence of fixed-size segments; (2) computing a signature for each data segment using its contents such that, with a strong likelihood, two segments are the same if their signatures match; (3) parsing target data using a prefix matching method on such a sequence of signatures of source data to compute matching sequences of segments; and (4) merging closely matched segments as necessary to form matching windows.