Patents by Inventor Bradley Calder

Bradley Calder 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).

  • Erasure coded storage aggregation in data centers
    Patent number: 8918478
    Abstract: Embodiments of erasure coded storage aggregation are disclosed. The erasure coded storage aggregation includes storing a data file as erasure coded fragments in a plurality of nodes of one or more data centers. The erasure coded storage aggregation further includes monitoring an access frequency of the data file. Based on the comparison between the access frequency and a predetermined threshold, the data file is either reconstructed from the erasure coded fragments and stored in a storage node or retained as erasure coded fragments in the plurality of nodes of the one or more data centers.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: December 23, 2014
    Assignee: Microsoft Corporation
    Inventors: Raymond E. Ozzie, John D. Mehr, Siddhartha Puri, Samuel J. McKelvie, Bradley Calder, Matt Pope
  • ERASURE CODED STORAGE AGGREGATION IN DATA CENTERS
    Publication number: 20130275390
    Abstract: Embodiments of erasure coded storage aggregation are disclosed. The erasure coded storage aggregation includes storing a data file as erasure coded fragments in a plurality of nodes of one or more data centers. The erasure coded storage aggregation further includes monitoring an access frequency of the data file. Based on the comparison between the access frequency and a predetermined threshold, the data file is either reconstructed from the erasure coded fragments and stored in a storage node or retained as erasure coded fragments in the plurality of nodes of the one or more data centers.
    Type: Application
    Filed: June 3, 2013
    Publication date: October 17, 2013
    Inventors: Raymond E. Ozzie, John D. Mehr, Siddhartha Puri, Samuel J. McKelvie, Bradley Calder, Matt Pope
  • Erasure coded storage aggregation in data centers
    Patent number: 8458287
    Abstract: Embodiments of erasure coded storage aggregation are disclosed. The erasure coded storage aggregation includes storing a data file as erasure coded fragments in a plurality of nodes of one or more data centers. The erasure coded storage aggregation further includes monitoring an access frequency of the data file. Based on the comparison between the access frequency and a predetermined threshold, the data file is either reconstructed from the erasure coded fragments and stored in a storage node or retained as erasure coded fragments in the plurality of nodes of the one or more data centers.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: June 4, 2013
    Assignee: Microsoft Corporation
    Inventors: Raymond E. Ozzie, John D. Mehr, Siddhartha Puri, Samuel J. McKelvie, Bradley Calder, Matt Pope
  • Erasure Coded Storage Aggregation in Data Centers
    Publication number: 20110029840
    Abstract: Embodiments of erasure coded storage aggregation are disclosed. The erasure coded storage aggregation includes storing a data file as erasure coded fragments in a plurality of nodes of one or more data centers. The erasure coded storage aggregation further includes monitoring an access frequency of the data file. Based on the comparison between the access frequency and a predetermined threshold, the data file is either reconstructed from the erasure coded fragments and stored in a storage node or retained as erasure coded fragments in the plurality of nodes of the one or more data centers.
    Type: Application
    Filed: July 31, 2009
    Publication date: February 3, 2011
    Applicant: Microsoft Corporation
    Inventors: Raymond E. Ozzie, John D. Mehr, Siddhartha Puri, Samuel J. McKelvie, Bradley Calder, Matt Pope
  • Machine instruction level race condition detection
    Patent number: 7861118
    Abstract: An apparatus, method and computer-readable medium provide for detecting and filtering potential race conditions. In one example, potential race conditions may be detected by determining overlap of memory accesses (e.g., read, write). Potential race conditions may be filtered as potentially benign or harmful race conditions using, for example, heuristics, comparison of output states from execution of instructions or operations in differing sequences or identifying of associated output bugs corresponding to the execution of operations in different sequences.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: December 28, 2010
    Assignee: Microsoft Corporation
    Inventors: Andrew James Edwards, James Jordan Tigani, Zhenghao Wang, Bradley Calder, Satish Narayanasamy
  • MACHINE INSTRUCTION LEVEL RACE CONDITION DETECTION
    Publication number: 20080244332
    Abstract: An apparatus, method and computer-readable medium provide for detecting and filtering potential race conditions. In one example, potential race conditions may be detected by determining overlap of memory accesses (e.g., read, write). Potential race conditions may be filtered as potentially benign or harmful race conditions using, for example, heuristics, comparison of output states from execution of instructions or operations in differing sequences or identifying of associated output bugs corresponding to the execution of operations in different sequences.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 2, 2008
    Applicant: Microsoft Corporation
    Inventors: Andrew James Edwards, James Jordan Tigani, Zhenghao Wang, Bradley Calder, Satish Naravanasamy