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:
Jul. 23, 2013
Filed:
Sep. 01, 2004
Ynn-pyng “anker” Tsaur, Oviedo, FL (US);
Baige Wang, Lake Mary, FL (US);
Kirk L. Searls, Maitland, FL (US);
Ynn-Pyng “Anker” Tsaur, Oviedo, FL (US);
Baige Wang, Lake Mary, FL (US);
Kirk L. Searls, Maitland, FL (US);
Symantec Operating Corporation, Mountain View, CA (US);
Abstract
A method and mechanism for performing data backups in a computing system. A 'delta' catalog is utilized for the maintenance of data backups. The delta catalog includes a backed up object table and an extent map. For a given backup, the backed up object table update stores entries which identify only those objects backed up during that backup. The backed up object table is further configured to store entries which identify objects which were deleted between the time of a prior backup procedure and a current backup procedure. The extent map is configured identify all objects present in the system at the time of a particular backup. The extent map identifies the objects which were present as one or more sequences of entries in the backed up object table.