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:
Jan. 31, 2012
Filed:
Sep. 03, 2008
Zeming Xu, Beijing, CN;
Xiaorui Zhao, Beijing, JP;
Liyuan Zhao, Beijing, JP;
Beijing Lenovo Software Ltd., Beijing, CN;
Lenovo (Beijing) Limited, Beijing, CN;
Abstract
The invention discloses a multi-version control method for data documents, and a device thereof. The method comprises generating data-block fingerprints for all data blocks of a benchmark version; determining common data contents common between a newer version and the benchmark version according to the data-block fingerprints, and indexing the common data contents; determining the data contents peculiar to the newer version, i.e. not contained in the benchmark version according to the indexes, and indexing these particular data contents; determining positions of these data contents in the newer version according to the indexes; determining the data blocks with identical data contents between the two versions through the comparisons of data-block fingerprints and data contents; extracting the data contents common between the two versions, the data contents peculiar to the newer version, as well as the positions of the data contents in the newer version.