Patents by Inventor Wojciech Kilian

Wojciech Kilian 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).

  • Storage system and deduplication control method therefor
    Patent number: 9671974
    Abstract: A storage system according to the present invention includes: a block detecting means for checking whether respective block data obtained by division are already stored in a storage device; and a data writing means for storing the respective block data obtained by division with duplicated storage eliminated into the storage device. The block detecting means detects a share rate representing a rate of a shared portion between a plurality of consecutive block data configuring a predetermined range in write target data among the block data obtained by division and a plurality of block data in a predetermined range already stored consecutively in the storage device. The data writing means, depending on the detected share rate, newly stores the block data obtained by division, into the storage device.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: June 6, 2017
    Assignee: NEC CORPORATION
    Inventors: Michal Kaczmarczyk, Marcin Barczynski, Wojciech Kilian, Cezary Dubnicki
  • Storage system
    Patent number: 9201891
    Abstract: Duplicate storage elimination is performed in units of block data generated by dividing a data stream into arbitrary-sized blocks. Further, sub-block data is generated by further dividing the block data into a plurality of pieces of data, and sub-address data based on the data content of each of the pieces of sub-block data is stored in a predetermined storage device. As such, duplicate storage elimination is also performed in sub-block data units based on the sub-address data.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: December 1, 2015
    Assignee: NEC CORPORATION
    Inventors: Bartlomiej Romanski, Lukasz Heldt, Wojciech Kilian, Krzysztof Lichota, Cezary Dubnicki
  • STORAGE SYSTEM
    Publication number: 20140025917
    Abstract: A storage system according to the present invention includes: a block detecting means for checking whether respective block data obtained by division are already stored in a storage device; and a data writing means for storing the respective block data obtained by division with duplicated storage eliminated into the storage device. The block detecting means detects a share rate representing a rate of a shared portion between a plurality of consecutive block data configuring a predetermined range in write target data among the block data obtained by division and a plurality of block data in a predetermined range already stored consecutively in the storage device. The data writing means, depending on the detected share rate, newly stores the block data obtained by division, into the storage device.
    Type: Application
    Filed: September 10, 2012
    Publication date: January 23, 2014
    Applicant: NEC CORPORATION
    Inventors: Michal Kaczmarczyk, Marcin Barczynski, Wojciech Kilian, Cezary Dubnicki
  • STORAGE SYSTEM
    Publication number: 20130212074
    Abstract: Duplicate storage elimination is performed in units of block data generated by dividing a data stream into arbitrary-sized blocks. Further, sub-block data is generated by further dividing the block data into a plurality of pieces of data, and sub-address data based on the data content of each of the pieces of sub-block data is stored in a predetermined storage device. As such, duplicate storage elimination is also performed in sub-block data units based on the sub-address data.
    Type: Application
    Filed: August 25, 2011
    Publication date: August 15, 2013
    Applicant: NEC CORPORATION
    Inventors: Bartlomiej Romanski, Lukasz Heldt, Wojciech Kilian, Krzysztof Lichota, Cezary Dubnicki