Patents by Inventor Pranab K. Nag

Pranab K. Nag 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: 7065588
    Abstract: A data transformation system includes clients, which initiate requests for transformation of data between first and second data formats. The system also includes peer transformation servers having data converters and graphs of available transformations between input and output data formats of such servers. The graph includes unidirectional edges, which extend between corresponding pairs of the formats. The servers collectively include one or more converters for each of the edges. The servers receive the requests and select plural intermediate transformations from the first format to plural intermediate formats, and a final transformation from an intermediate format to the second format. Each of the intermediate and final transformations is associated with a corresponding one of the edges. The servers initiate the converters corresponding to the selected transformations, in order to obtain and dispose the data in the second format. A communication network provides communication among the client and servers.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: June 20, 2006
    Assignee: Chaavi, Inc.
    Inventors: Suresh L. Konda, Michael Collins, Pranab K. Nag
  • Publication number: 20030041095
    Abstract: A data transformation system includes clients, which initiate requests for transformation of data between first and second data formats. The system also includes peer transformation servers having data converters and graphs of available transformations between input and output data formats of such servers. The graph includes unidirectional edges, which extend between corresponding pairs of the formats. The servers collectively include one or more converters for each of the edges. The servers receive the requests and select plural intermediate transformations from the first format to plural intermediate formats, and a final transformation from an intermediate format to the second format. Each of the intermediate and final transformations is associated with a corresponding one of the edges. The servers initiate the converters corresponding to the selected transformations, in order to obtain and dispose the data in the second format. A communication network provides communication among the client and servers.
    Type: Application
    Filed: August 10, 2001
    Publication date: February 27, 2003
    Inventors: Suresh L. Konda, Michael Collins, Pranab K. Nag
  • Patent number: 5051951
    Abstract: A floating gate NMOS enhancement mode transistor is utilized in an NMOS SRAM thereby reducing power consumption, size, and circuit complexity of the memory cell. The gate of the load transistor is allowed to float with no galvanic connection to the memory cell circuit. A bias voltage is induced on the gate of the load transistor by capacitances of the gate with the source, the drain, and the bulk semiconductor, and the conductance is maintained below conduction threshold. Gate bias is established by tailoring of the gate capacitances and by the removal of charge using UV light as necessary.
    Type: Grant
    Filed: February 8, 1991
    Date of Patent: September 24, 1991
    Assignee: Carnegie Mellon University
    Inventors: Wojciech Maly, Pranab K. Nag