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:
Oct. 20, 2015
Filed:
Oct. 27, 2011
Peter Druschel, Saarbruecken, DE;
Rodrigo Rodrigues, Saarbruecken, DE;
Ansley Post, Zurich, CH;
Johannes Gehrke, Ithaca, NY (US);
Anjo Lucas Vahldiek, Saarbruecken, DE;
Peter Druschel, Saarbruecken, DE;
Rodrigo Rodrigues, Saarbruecken, DE;
Ansley Post, Zurich, CH;
Johannes Gehrke, Ithaca, NY (US);
Anjo Lucas Vahldiek, Saarbruecken, DE;
Abstract
Storage leases specify access restrictions and time periods, restricting access to their associated data during the storage lease time period. Storage leases may be assigned to individual data storage blocks or groups of data storage blocks in a data storage device. A data storage device may include any arbitrary number of different storage leases assigned to different portions of its data storage blocks. Storage lease-enabled devices may provide security certificates to verify that data access operations have been performed as requested and that their storage leases are being enforced. Storage lease-enabled devices compare storage lease information for data units with the current time using a clock isolated from access by storage clients or time certificates from one or more trusted time servers. Storage leases may be used in combination with backup applications, file systems, database systems, peer-to-peer data storage, and cloud storage systems.