Patents by Inventor Leszek Gryz

Leszek Gryz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8140625
    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.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: March 20, 2012
    Assignee: NEC Laboratories America, Inc.
    Inventors: Cezary Dubnicki, Leszek Gryz, Krzysztof Lichota, Cristian Ungureanu
  • Publication number: 20080201428
    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.
    Type: Application
    Filed: January 31, 2008
    Publication date: August 21, 2008
    Applicant: NEC LABORATORIES AMERICA, INC.
    Inventors: Cezary Dubnicki, Leszek Gryz, Krzysztof Lichota, Cristian Ungureanu
  • Publication number: 20080201335
    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.
    Type: Application
    Filed: January 31, 2008
    Publication date: August 21, 2008
    Applicant: NEC LABORATORIES AMERICA, INC.
    Inventors: Cezary Dubnicki, Leszek Gryz, Krzysztof Lichota, Cristian Ungureanu