Patents by Inventor John M. Czerkowicz

John M. Czerkowicz 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).

  • Optimized record lookups
    Patent number: 11010300
    Abstract: In some examples, a method can involve generating data object records representing data objects in storage and storing, on a device, a lookup index including a plurality of index buckets, each index bucket being associated with a set of storage units on the device and including a respective index filter for each respective one of the set of storage units, the set of storage units containing a respective portion of the data object records, wherein each respective index filter includes at least one lookup entry for each data object record in the respective one of the set of storage units. The method can also involve receiving a data object request, and performing a lookup operation including identifying an index bucket for the data object and determining whether any of the set of storage units associated with the index bucket contains a data object record corresponding to the data object.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: May 18, 2021
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Glenn Watkins, Peter Madany, John M. Czerkowicz
  • OPTIMIZED RECORD LOOKUPS
    Publication number: 20180322062
    Abstract: In some examples, a method can involve generating data object records representing data objects in storage and storing, on a device, a lookup index including a plurality of index buckets, each index bucket being associated with a set of storage units on the device and including a respective index filter for each respective one of the set of storage units, the set of storage units containing a respective portion of the data object records, wherein each respective index filter includes at least one lookup entry for each data object record in the respective one of the set of storage units. The method can also involve receiving a data object request, and performing a lookup operation including identifying an index bucket for the data object and determining whether any of the set of storage units associated with the index bucket contains a data object record corresponding to the data object.
    Type: Application
    Filed: May 4, 2017
    Publication date: November 8, 2018
    Inventors: Glenn Watkins, Peter Madany, John M. Czerkowicz
  • Landmark chunking of landmarkless regions
    Patent number: 8117343
    Abstract: A computer-executed method for forming data chunks from a sequence of data values comprises determining whether processing of the sequence of data values has entered a landmark-free region. If processing has entered a landmark-free region, a data chunk is produced using a specialized landmark chunking technique that is specialized for landmark-free regions. Otherwise, the method comprises producing a data chunk using a standard-data landmark chunking technique.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: February 14, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Mark David Lillibridge, John M. Czerkowicz, David Malcolm Falkinder
  • LANDMARK CHUNKING OF LANDMARKLESS REGIONS
    Publication number: 20100114980
    Abstract: A computer-executed method for forming data chunks from a sequence of data values comprises determining whether processing of the sequence of data values has entered a landmark-free region. If processing has entered a landmark-free region, a data chunk is produced using a specialized landmark chunking technique that is specialized for landmark-free regions. Otherwise, the method comprises producing a data chunk using a standard-data landmark chunking technique.
    Type: Application
    Filed: October 28, 2008
    Publication date: May 6, 2010
    Inventors: Mark David Lillibridge, John M. Czerkowicz, David Malcolm Falkinder