Patents by Inventor Sunil Prabhakar

Sunil Prabhakar 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: 10152268
    Abstract: A method for replicating data from a plurality of storage systems to a target storage system. The method implemented at the target storage system receives a replication request to replicate data from a source storage system to the target storage system, where the target storage system stores data replicated from the plurality of source storage systems. In response to the replication request, the target storage system identifies a replication resource limit associated with the data to be replicated from the source storage system. The target storage system then determines whether a replication resource requested by the replication request has exceeded the replication resource limit. The target storage system thus allows the replication resource to replicate data from the source storage system, in response to the replication resource not exceeding the replication resource limit.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: December 11, 2018
    Assignee: EMC IP Holding Company LLC
    Inventors: Subhasish Chakraborty, David Lin, Shufeng Huang, Terry Hahn, Sunil Prabhakar
  • Patent number: 8799247
    Abstract: A system and methods for providing guarantees about faithful execution of databases that run under the control of an untrusted entity—such as a cloud computing service provider—that is different than the owner of the data and applications being outsourced; or runs on a server that may be compromised by unauthorized users. Specifically, the system and methods establishes that an untrusted database is being faithfully hosted and provides indemnity for the service provider from false claims, enabling the server to prove its innocence against untrue claims of faulty operation. The invention also provides assured provenance for all changes made to the database.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: August 5, 2014
    Assignee: Purdue Research Foundation
    Inventors: Sunil Prabhakar, Rohit Jain
  • Patent number: 8799489
    Abstract: Techniques to dynamically select data sources for users and to direct queries for the users to the proper data sources. Initially, user information (e.g., user name) for each user is received and used to determine a data source designated for the user. The designated data source may be determined via a look-up table or by running a query with the user information to obtain the identity (e.g., the logical name) of the data source. A data source variable for each user can then be set to the identity of the designated data source. Thereafter, queries for each user are directed to the user's designated data source by determining database connection information for the designated data source based on the data source variable and using this information to direct the queries.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: August 5, 2014
    Assignee: Siebel Systems, Inc.
    Inventors: Edward Shaw-Lee Suen, Sunil Prabhakar Dixit
  • Publication number: 20120209822
    Abstract: A system and methods for providing guarantees about faithful execution of databases that run under the control of an untrusted entity—such as a cloud computing service provider—that is different than the owner of the data and applications being outsourced; or runs on a server that may be compromised by unauthorized users. Specifically, the system and methods establishes that an untrusted database is being faithfully hosted and provides indemnity for the service provider from false claims, enabling the server to prove its innocence against untrue claims of faulty operation. The invention also provides assured provenance for all changes made to the database.
    Type: Application
    Filed: February 10, 2012
    Publication date: August 16, 2012
    Applicant: Purdue Research Foundation
    Inventors: Sunil Prabhakar, Rohit Jain
  • Patent number: 7634397
    Abstract: Techniques to provide dynamic multi-lingual support for software applications such as analytics, which typically rely on two different types of data, underlying data and metadata, to generate reports. The metadata defines the underlying data and a presentation layer displays the reports, which may be generated using presentation and metadata layer objects. Each such object may be defined by a language independent representation, which may in turn be associated with multiple display or language dependent representations (i.e., translations or translated strings) for multiple supported languages. One of the languages may be selected for use in a given session, and the display representations for the selected language are then bound to the language independent representations. The binding may be dynamically performed and is session-specific.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: December 15, 2009
    Assignee: Siebel Systems, Inc.
    Inventors: Edward Shaw-Lee Suen, Sunil Prabhakar Dixit, James P. Rogers, Samar Abbas Lotia, Eric Alan Musser
  • Patent number: 7539872
    Abstract: A system and method that provide resilient watermarking of digital data, including numeric and categorical relational data. The method and system are premised upon a framework considering the higher level semantics to be preserved in the original data. The system and method also provides a technique for enabling user-level run-time control over the properties that are to be preserved, as well as the degree of change introduced. The system and method are resilient to various important classes of attacks, including subset selection, addition, alteration, or resorting, horizontal or vertical data partitioning, and attribute remapping. For numeric relational data, approximately 40-45% of the embedded watermark may survive approximately 45-50% of original data loss, while for categorical relational data, the watermark may survive approximately 80% of original data loss with only approximately 25% degradation of the watermark.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: May 26, 2009
    Assignee: Purdue Research Foundation
    Inventors: Radu Sion, Mikhail Atallah, Sunil Prabhakar
  • Publication number: 20050055554
    Abstract: A system and method that provide resilient watermarking of digital data, including numeric and categorical relational data. The method and system are premised upon a framework considering the higher level semantics to be preserved in the original data. The system and method also provides a technique for enabling user-level run-time control over the properties that are to be preserved, as well as the degree of change introduced. The system and method are resilient to various important classes of attacks, including subset selection, addition, alteration, or resorting, horizontal or vertical data partitioning, and attribute remapping. For numeric relational data, approximately 40-45% of the embedded watermark may survive approximately 45-50% of original data loss, while for categorical relational data, the watermark may survive approximately 80% of original data loss with only approximately 25% degradation of the watermark.
    Type: Application
    Filed: May 24, 2004
    Publication date: March 10, 2005
    Inventors: Radu Sion, Mikhail Atallah, Sunil Prabhakar