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:
Mar. 20, 2012
Filed:
Jan. 31, 2008
Cezary Dubnicki, Monmouth Junction, NJ (US);
Leszek Gryz, Princeton, NJ (US);
Krzysztof Lichota, Warszawa, PL;
Cristian Ungureanu, Princeton, NJ (US);
Cezary Dubnicki, Monmouth Junction, NJ (US);
Leszek Gryz, Princeton, NJ (US);
Krzysztof Lichota, Warszawa, PL;
Cristian Ungureanu, Princeton, NJ (US);
NEC Laboratories America, Inc., Princeton, NJ (US);
Abstract
A fixed prefix peer to peer network has a number of physical nodes. The nodes are logically divided into a number of storage slots. Blocks of data are erasure coded into original and redundant data fragments and the resultant fragments of data are stored in slots on separate physical nodes such that no physical node has more than one original and/or redundant fragment. The storage locations of all of the fragments are organized into a logical virtual node (e.g., a supernode). Thus, the supernode and the original block of data can be recovered even if some of the physical nodes are lost.