Patents by Inventor Raj Kumar Sen

Raj Kumar Sen 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).

  • System and method for assignment of unique identifiers in a distributed environment
    Patent number: 8301589
    Abstract: System and method for assignment of unique identifiers in a distributed environment. In a distributed system having a plurality of nodes, a method for allocating identifiers comprises steps of: allocating a pool of identifiers for use; maintaining lists of free identifiers in the pool at participating nodes; obtaining at a first node permission to update the lists of free identifiers; upon receiving permission to update the lists, allocating for the first node a set of identifiers from the lists; updating the lists of free identifiers to reflect allocation of the set of identifiers for the first node; sending the updated lists from the first node to other participating nodes; upon receiving the updated lists of free identifiers at each other participating node, updating each other participating node's respective copy of the lists of free identifiers; and relinquishing the first node's permission to update the lists of free identifiers.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: October 30, 2012
    Assignee: Sybase, Inc.
    Inventors: Raj Kumar Sen, Gangavara Prasad Varakur
  • System and Method for Assignment of Unique Identifiers in a Distributed Environment
    Publication number: 20070276833
    Abstract: System and method for assignment of unique identifiers in a distributed environment. In a distributed system having a plurality of nodes, a method for allocating identifiers comprises steps of: allocating a pool of identifiers for use; maintaining lists of free identifiers in the pool at participating nodes; obtaining at a first node permission to update the lists of free identifiers; upon receiving permission to update the lists, allocating for the first node a set of identifiers from the lists; updating the lists of free identifiers to reflect allocation of the set of identifiers for the first node; sending the updated lists from the first node to other participating nodes; upon receiving the updated lists of free identifiers at each other participating node, updating each other participating node's respective copy of the lists of free identifiers; and relinquishing the first node's permission to update the lists of free identifiers.
    Type: Application
    Filed: March 26, 2007
    Publication date: November 29, 2007
    Applicant: SYBASE, INC.
    Inventors: Raj Kumar Sen, Gangavara Prasad Varakur