Patents by Inventor Ratnesh Kumar

Ratnesh Kumar 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: 8731733
    Abstract: A system for managing a structure having cooling fluid configured to flow around and absorb heat from components contained in the structure includes a plurality of separate cooling mechanisms configured to absorb heat from the cooling fluid. At least two of the plurality of separate cooling mechanisms have at least one different level of a metric with respect to each other. The system also includes a controller configured to implement the plurality of separate cooling mechanisms in a staged manner to remove heat from the cooling fluid. The staged manner includes implementing the cooling mechanism having a relatively lower at least one metric level first and implementing a cooling mechanism having a relatively higher at least one metric level last, to cool the structure.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: May 20, 2014
    Assignee: Hewlett-Packard Development Company, L. P.
    Inventors: Chandrakant Patel, Cullen E. Bash, Ratnesh Kumar Sharma, Amip J. Shah, Abdlmonem Beitelmal
  • Publication number: 20140100705
    Abstract: System and methods are disclosed to handle power imbalance in one or more distributed generation (DG) units: detecting islanding at time t1; selecting Phasor Measurement Unit (PMU) measurements during a pre-defined time window [t1-?, t1]; checking the time window for an abrupt voltage change; if no sudden change of voltage is detected, determining an average value of sPMUt between t1-? and t1 and using the average as a best estimate of a system power imbalance; if a sudden change of voltage is detected at time instant t2, determining the average value of sPMUt between t1-? and t2 and using the average as a best estimate of the system power imbalance; and adjusting a power reference of the DG units based on the best estimated system power imbalance.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 10, 2014
    Applicant: NEC LABORATORIES AMERICA, INC.
    Inventors: Di Shi, Ratnesh Kumar Sharma, Yanzhu Ye
  • Patent number: 8655636
    Abstract: A method of semantic translation of a class of diagrams to input/output-extended finite automata is provided. The method includes receiving a data representation of a diagram, said diagram comprising a plurality of blocks and said diagram being associated with a graphical modeling environment which defines semantics for executing the diagram, and processing, using a computing device, the data representation of the diagram to translate the diagram to an input/output-extended finite automata model.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: February 18, 2014
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Ratnesh Kumar, Changyan Zhou
  • Patent number: 8641804
    Abstract: Systems and methods to condition air are disclosed. An example system includes a desiccant heat transfer device to supply conditioned air to a facility, an air intake to receive air to be conditioned via the desiccant heat transfer device, and a make-up exhaust to provide exhaust air from a heat dissipating device in the facility to provide heated air to reactivate the desiccant heat transfer device.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: February 4, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ratnesh Kumar Sharma, Chih C. Shih, Thomas W. Christian, Cullen E. Bash
  • Patent number: 8643646
    Abstract: To construct at least one cluster of data records of a scatter plot, cells representing the data records are placed in a visualization screen according to values of a first attribute and a second attribute of the data records. Visual indicators are assigned to the cells according to values of a third attribute of the data records. In response to detecting data records having a particular pair of first attribute and second attribute values, cells representing the data records having the particular pair of first attribute and second attribute values are placed in nearby positions according to similarity of values of the third attribute to form the at least one cluster of cells having similar visual indicators.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: February 4, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ming C. Hao, Umeshwar Dayal, Ratnesh Kumar Sharma, Alex Xin Zhang
  • Patent number: 8630739
    Abstract: In a method of evaluating an infrastructure having a plurality of components based upon exergy loss values, exergy loss values of the components are aggregated. In addition, at least one of the components in the infrastructure is controlled based upon the aggregated exergy loss values.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: January 14, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Amip J. Shah, Ratnesh Kumar Sharma, Cullen E. Bash
  • Patent number: 8630967
    Abstract: In a method for determining operational settings for a plurality of fluid moving devices, one or more motifs in utilization data of the plurality of fluid moving devices collected over a time series is identified as a multivariate time series of data, sustainability metric levels for each of the one or more identified motifs are calculated, and a determination as to which of the one or more identified motifs have favorable sustainability metric levels is made.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: January 14, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ratnesh Kumar Sharma, Manish Marwah, Debprakash Patnaik, Naren Ramakrishnan
  • Patent number: 8626889
    Abstract: In a method for detecting anomalies in a sensor-networked environment, packages of data are received from a plurality of sensors located in the environment. At least one candidate problem location in the environment is identified based upon data contained in the packages. A principal components analysis is performed on the data collected from sensors associated with the identified at least one candidate problem location to identify a number of hidden variables and the number of hidden variables are analyzed to detect anomalies in the environment. In addition, detected anomalies are outputted. An analyzer for performing the method is provided.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: January 7, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ratnesh Kumar Sharma, Lola Xiomara Bautista
  • Patent number: 8565931
    Abstract: In a method for managing energy demand in an infrastructure, a coefficient of performance (COP) of the infrastructure as a function of time is determined. The COP is a measure of efficiency of the infrastructure. In addition, an energy demand on the infrastructure as a function of time is determined and an energy demand schedule for the infrastructure that temporally reallocates the energy demand based upon the determined COP of the infrastructure is determined.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: October 22, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Manish Marwah, Ratnesh Kumar Sharma, Amip J. Shah, Thomas W. Christian, Cullen E. Bash, Chandrakant Patel, Martin Arlitt, Geoff M. Lyon
  • Publication number: 20130190941
    Abstract: Resource management for data centers is disclosed. In an exemplary embodiment, a method includes determining electrical power usage for the data center, and determining cooling fluid usage for the data center. The method also includes processing a resource utilization cap for the data center, and adjust ng at least one of the electrical power and the cooling fluid for the data center based on the resource utilization cap.
    Type: Application
    Filed: October 12, 2010
    Publication date: July 25, 2013
    Inventors: Tahir Cader, Ratnesh Kumar Sharma, Cullen E. Bash
  • Patent number: 8491702
    Abstract: A system for controlling moisture content in ambient airflow in a substantially enclosed structure having components. The system includes at least one humidity control apparatus and a plurality of sensors for detecting moisture content in airflow in a plurality of locations of the substantially enclosed structure. The plurality of sensors are located remotely from the at least one humidity control apparatus and are situated in relatively close proximity to the components that the at least one humidity control apparatus is configured to affect. The system also includes a controller configured to receive moisture content levels detected by one or more of the plurality of sensors and to control the at least one humidity control apparatus based upon the detected moisture content levels to vary the moisture content in the ambient airflow around the plurality of locations.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: July 23, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Cullen E. Bash, Amip J. Shah, Ratnesh Kumar Sharma
  • Patent number: 8457806
    Abstract: An apparatus for managing an infrastructure having one or more three-dimensional (3D) packages and a plurality of cooling resource actuators, each of the 3D packages including a plurality of heat sources, includes a heat source manager configured to determine heat load profiles of the heat sources. The apparatus also includes a cooling resource manager configured to determine capabilities of the plurality of cooling resource actuators to meet heat load demands of the plurality of heat sources based on the heat load profiles of the plurality of heat sources and an integrated thermal manager configured to match the capabilities of the plurality of cooling resource actuators to the heat load profiles of the plurality of heat sources.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: June 4, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Amip J. Shah, Chandrakant Patel, Ratnesh Kumar Sharma
  • Patent number: 8447569
    Abstract: Determining a sustainability impact for available data center architectures. A data center is accessed by a computer. Two or more functional parameters of the data center are then evaluated by the computer. Then, the computer combines the two or more evaluated functional parameters into a quantified judgment to determine a sustainability impact of available architectures of the data center.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: May 21, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Manish Marwah, Amip J. Shah, Ratnesh Kumar Sharma, Thomas W. Christian, Paulo Maciel
  • Patent number: 8392157
    Abstract: In a method of synthesizing components to design a system meeting an exergy loss target value, one or more candidate sets of components are synthesized and an exergy loss value for each of the one or more candidate sets of components are calculated. A determination as to whether at least one of the candidate set of components meets the exergy loss target value is made and at least one candidate set of components determined to meet the exergy loss target value is identified as the set of components for use in the design of the system.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: March 5, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Amip J. Shah, Ratnesh Kumar Sharma, Chih C. Shih, Abdimonem Beitelal, Cullen E. Bash, Chandrakant Patel
  • Publication number: 20130025450
    Abstract: Systems and methods to condition air are disclosed. An example system includes a desiccant heat transfer device to supply conditioned air to a facility, an air intake to receive air to be conditioned via the desiccant heat transfer device, and a make-up exhaust to provide exhaust air from a heat dissipating device in the facility to provide heated air to reactivate the desiccant heat transfer device.
    Type: Application
    Filed: July 29, 2011
    Publication date: January 31, 2013
    Inventors: Ratnesh Kumar Sharma, Chih C. Shih, Thomas W. Christian, Cullen E. Bash
  • Patent number: 8352085
    Abstract: In a method for distributing cooling resources to a plurality of locations using a plurality of hierarchically identified cooling microgrids, conditions detected at the plurality of locations are received. Each level of the hierarchically identified cooling microgrids is a plurality of resource actuators configured to vary distribution of the cooling resources. Settings for the plurality of resource actuators in each of the levels in the cooling microgrid hierarchy that substantially maintain conditions at the plurality of locations within predetermined ranges are determined using a processor, while substantially optimizing at least one measure of performance associated with supplying the cooling resources to the plurality of locations.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: January 8, 2013
    Assignee: Hewlett-Packard Development Company L.P.
    Inventors: Manish Marwah, Ratnesh Kumar Sharma, Amip J. Shah, Thomas W. Christian, Cullen E. Bash, Zhikui Wang, Chandrakant Patel
  • Patent number: 8323439
    Abstract: To deposit carbon nanotubes onto a substrate, an at least partially porous film is prepared so that a surface of the film has a layer of carbon nanotubes thereon. The film is positioned in relation to a surface of the substrate such that the surface of the film having the layer of carbon nanotubes is brought into contact with the surface of the substrate. Pressure is applied to the film to attach the film, including the layer of carbon nanotubes, to the surface of the substrate.
    Type: Grant
    Filed: March 8, 2009
    Date of Patent: December 4, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kevin Dooley, Ratnesh Kumar Sharma, Lynn Sheehan, Sergio Escobar-Vargas, Anna Fenelon
  • Patent number: 8255522
    Abstract: A method for detecting events based upon attributes read by a plurality of entities includes receiving data pertaining to the read attributes from the plurality of entities, performing a correlation analysis on the data to identify a number of independent variables existing among the read attributes for each of a plurality of groupings of the plurality of entities in a first hierarchical level of the plurality of hierarchical levels, comparing the identified number of independent variables with a nominal number of independent variables for each of the plurality of groupings in the first hierarchical level, and determining that an event has been detected in response to the identified number of independent variables falling outside of a predetermined value of the nominal number of independent variables for a particular grouping in the first hierarchical level.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: August 28, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Manish Marwah, Ratnesh Kumar Sharma, Wilfredo E. Lugo
  • Patent number: 8212817
    Abstract: Systems, methods, and other embodiments associated with spatial temporal visual analysis of thermal data are described. One example system includes recording a set of temperature data including multiple dimensions of data from a set of sensors attached to racks of computers in a data center. The example system also includes displaying the multiple dimensions of data in a two dimension graphic. The example system also includes performing spatial temporal visual analysis techniques to correlate temperature states, discover thermal exceptions, and so on, in the graphic.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: July 3, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ming C. Hao, Umeshwar Dayal, Ratnesh Kumar Sharma, Chandrakat Patel
  • Publication number: 20120109391
    Abstract: In a method for managing energy demand in an infrastructure, a coefficient of performance (COP) of the infrastructure as a function of time is determined. The COP is a measure of efficiency of the infrastructure. In addition, an energy demand on the infrastructure as a function of time is determined and an energy demand schedule for the infrastructure that temporally reallocates the energy demand based upon the determined COP of the infrastructure is determined.
    Type: Application
    Filed: October 27, 2010
    Publication date: May 3, 2012
    Inventors: Manish Marwah, Ratnesh Kumar Sharma, Amip J. Shah, Thomas W. Christian, Cullen E. Bash, Chandrakant Patel, Martin Arlitt, Geoff M. Lyon