Patents by Inventor Jawahar Jain

Jawahar Jain 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).

  • Creating a personalized stress profile using renal doppler sonography
    Patent number: 8529447
    Abstract: In particular embodiments, a method includes accessing data streams from a renal Doppler sonograph and one or more of a heart-rate monitor, a blood-pressure monitor, a pulse oximeter, or a mood sensor monitoring a person, and generating a stress model of the person based on the data streams.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: September 10, 2013
    Assignee: Fujitsu Limited
    Inventors: Jawahar Jain, David Loren Marvit, Madan Bahadur, Shreyans Gandhi
  • Validating sensor data represented by characteristic functions
    Patent number: 8495038
    Abstract: According to certain embodiments, a characteristic function representing data is received. A first hash code calculated from the characteristic function is received. The characteristic function is transformed to an arithmetic function. A second hash code is calculated from the arithmetic function. If the first hash code equals the second hash code, the data is designated as valid; otherwise, the data is designated as invalid.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: July 23, 2013
    Assignee: Fujitsu Limited
    Inventors: Stergios Stergiou, Jawahar Jain
  • Caching query results with binary decision diagrams (BDDs)
    Patent number: 8468142
    Abstract: Construct a plurality of first binary decision diagrams (BDDs), each representing a different one of a plurality of words. Construct a plurality of second BDDs, each representing a different one of a plurality of search queries, each of the search queries comprising one or more of the words. Construct a plurality of third BDDs, each representing a different one of a plurality of web pages. Construct a plurality of fourth BDDs, each representing a different one of a plurality of search results, each search result comprising one or more web pages. Construct a plurality of fifth BDDs each representing a different one of a plurality of search tuples, each of the search tuples comprising a different one of the search queries and a different one of the search results. Construct a sixth BDD representing the search queries and the search results.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: June 18, 2013
    Assignee: Fujitsu Limited
    Inventors: Stergios Stergiou, Jawahar Jain
  • Range Queries in Binary Decision Diagrams
    Publication number: 20130080470
    Abstract: In particular embodiments, a method includes receiving a query for data in data sets that are within a specified range, constructing a first binary decision diagram (BDD) representing the specified range, and constructing a third BDD representing the data in the specified range by performing an AND operation between the first BDD and a second BDD representing the data sets.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: Fujitsu Limited
    Inventors: Stergios Stergiou, Jawahar Jain
  • Combining Medical Binary Decision Diagrams for Size Optimization
    Publication number: 20130080381
    Abstract: In particular embodiments, a method includes accessing a first binary decision diagram (BDD) representing a data stream from a first sensor and a second BDD representing a data stream from a second sensor, constructing a third BDD by performing an OR operation between the first and second BDDs, determining sizes of the first, second, and third BDDs, and if the third BDD is smaller than the sum of the first and second BDDs, then storing the third BDD, else storing the first and second BDDs.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: Fujitsu Limited
    Inventors: Stergios Stergiou, Jawahar Jain
  • Detecting Data Corruption in Medical Binary Decision Diagrams Using Hashing Techniques
    Publication number: 20130080836
    Abstract: In particular embodiments, a method includes receiving from a remote system a binary decision diagram (BDD) representing data streams from sensors, an input, and a first hash code, transforming the received BDD to a second arithmetic function by performing the arithmetic transformation on the received BDD, calculating a second hash code from the second arithmetic function and the input, and if the first hash code equals the second hash code, then indicating that the received BDD is uncorrupted data, else indicating that the received BDD is corrupted data.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: Fujitsu Limited
    Inventors: Stergios Stergiou, Jawahar Jain
  • Combining Medical Binary Decision Diagrams for Analysis Optimization
    Publication number: 20130080380
    Abstract: In particular embodiments, a method includes accessing first binary decision diagrams (BDDs) representing data streams from sensors, selecting portions from the first BDDs based on ease-of-analysis, and constructing a second BDD by performing an OR operation between the selected portions of the first BDDs.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: Fujitsu Limited
    Inventors: Stergios Stergiou, Jawahar Jain
  • Compression Threshold Analysis of Binary Decision Diagrams
    Publication number: 20130080382
    Abstract: In particular embodiments, a method includes receiving data sets, constructing a first binary decision diagram (BDD) representing the data sets, iteratively adding data from the data sets to the first BDD until a compression rate of the first BDD reaches a threshold compression rate, constructing a second BDD representing data from the data sets received after the compression rate of the first BDD equals a threshold compression rate, and iteratively adding data from the data sets to the second BDD.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: Fujitsu Limited
    Inventors: Stergios Stergiou, Jawahar Jain
  • Partitioning Medical Binary Decision Diagrams for Size Optimization
    Publication number: 20130080118
    Abstract: In particular embodiments, a method includes accessing a first binary decision diagram (BDD) representing data streams from sensors, selecting portions from the first BDD, constructing a second BDD representing the selected portions and a third BDD representing the non-selected portions, determining sizes of the first, second, and third BDDs, and if the size of the first BDD is less than a sum of the sizes of the second and third BDDs, then storing the first BDD, else storing the second and third BDDs.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: Fujitsu Limited
    Inventors: Stergios Stergiou, Jawahar Jain
  • Detecting Sensor Malfunctions Using Compression Analysis of Binary Decision Diagrams
    Publication number: 20130080843
    Abstract: In particular embodiments, a method includes analyzing a binary decision diagram (BDD) representing a data stream from a sensor to determine a compression rate of the BDD and indicating a sensor malfunction in the sensor if the compression rate of the BDD deviates from a specified compression rate range.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: Fujitsu Limited
    Inventors: Stergios Stergiou, Jawahar Jain, Tsuneo Nakata
  • Annotating Medical Binary Decision Diagrams with Health State Information
    Publication number: 20130080379
    Abstract: In particular embodiments, a method includes accessing a first binary decision diagram (BDD) representing data streams from sensors, accessing a second BDD representing health states associated with specified data ranges, and constructing a third BDD by performing an AND operation between the first and second BDDs.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: Fujitsu Limited
    Inventors: Stergios Stergiou, Jawahar Jain
  • Partitioning Medical Binary Decision Diagrams for Analysis Optimization
    Publication number: 20130080114
    Abstract: In particular embodiments, a method includes accessing a first binary decision diagram (BDD) representing data streams from sensors, selecting portions from the first BDD based on ease-of-analysis, and constructing a plurality of sub-BDDs by partitioning the first BDD, wherein the sub-BDDs comprises a first sub-BDD representing the selected portions, and second sub-BDDs representing the non-selected portions.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Inventors: Stergios Stergiou, Jawahar Jain
  • Determining optimum variable orders for BDDs using recursion
    Patent number: 8374991
    Abstract: One embodiment accesses a binary decision diagram (BDD) representing a function having n variables; constructs one group of one ordered set of the n variables; recursively constructs one or more new groups of one or more ordered sets of one or more variables, replacing existing groups of one or more ordered sets of one or more variables, until each existing group comprises one or more ordered sets of k variables or less, where 1?k<n; for each of the one or more existing groups, determines a locally optimum variable order that yields a smallest size among a plurality of different variable orders of the BDD obtained within the group; and selects from one or more locally optimum variable orders corresponding to the one or more existing groups an optimum variable order of the BDD that yields a smallest size among the one or more existing locally optimum variable orders.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: February 12, 2013
    Assignee: Fujitsu Limited
    Inventors: Stergios Stergiou, Jawahar Jain
  • BDD variable reordering using parallel permutation
    Patent number: 8370289
    Abstract: One embodiment accesses a binary decision diagram (BDD) representing a function having n variables, where n?2, wherein: the BDD comprises n layers corresponding to the n variables, respectively; and the BDD has a first variable order where each variable i is at layer i for 1?i?n; and reorders the n variables of the BDD according to a second variable order denoted as ?(i), where each variable i is at layer ?(i) for 1?i?n, by iteratively and alternatingly swapping one or more first disjoint pairs of consecutive layers during each odd iteration and swapping one or more second disjoint pairs of consecutive layers during each even iteration, until the second variable order is achieved, wherein during each iteration, two consecutive layers are swapped only if a current order of two variables at the two consecutive layers differs from an order of the two variables specified by the second variable order.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: February 5, 2013
    Assignee: Fujitsu Limited
    Inventors: Stergios Stergiou, Jawahar Jain
  • Automatically generating a hierarchy of terms
    Patent number: 8332439
    Abstract: In certain embodiments, generating a hierarchy of terms includes accessing a corpus comprising terms. The following is performed for one or more terms to yield parent-child relationships: one or more parent terms of a term are identified according to directional affinity; and one or more parent-child relationships are established from the parent terms and each term. A hierarchical graph is automatically generated from the parent-child relationships.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: December 11, 2012
    Assignee: Fujitsu Limited
    Inventors: David L. Marvit, Jawahar Jain, Stergios Stergiou, Alex Gilman, B. Thomas Adler
  • Data Aggregation Platform
    Publication number: 20120290266
    Abstract: In particular embodiments, a method includes accessing an original data stream from a sensor, associating a timestamp with each of the samples in the data stream based on a system clock, and recording the original data stream with the associated timestamps.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 15, 2012
    Applicant: Fujitsu Limited
    Inventors: Jawahar Jain, David Loren Marvit, B. Thomas Adler, Rajalakshmi Balakrishnan, Alexander Gilman, Stergios Stergiou, Albert C. Braun, Albert H.M. Reinhardt
  • Continuous Monitoring of Stress Using a Stress Profile Created by Renal Doppler Sonography
    Publication number: 20120289794
    Abstract: In particular embodiments, a method includes accessing data streams from one or more of a heart-rate monitor, a blood-pressure monitor, a pulse oximeter, a mood sensor, or an accelerometer monitoring a person, accessing a stress model, analyzing the data streams with respect to the stress model, and determining based on the analysis a current stress index of the person.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 15, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Jawahar Jain, David Loren Marvit, Shreyans Gandhi, Madan Bahadur
  • Continuous Monitoring of Stress Using Accelerometer Data
    Publication number: 20120289793
    Abstract: In particular embodiments, a method includes accessing data streams from an accelerometer and one or more of a heart-rate monitor, a blood-pressure monitor, a pulse oximeter, or a mood sensor monitoring a person, analyzing data sets collected from the person when the person is engaged in various activities, and determining a current stress index of the person based on the analysis.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 15, 2012
    Applicant: Fujitsu Limited
    Inventors: Jawahar Jain, David Loren Marvit, B. Thomas Adler, Rajalakshmi Balakrishnan, Alexander Gilman, Stergois Stergiou
  • Continuous Monitoring of Stress Using Self-Reported Psychological or Behavioral Data
    Publication number: 20120289790
    Abstract: In particular embodiments, a method includes accessing data streams from a mood sensor and one or more of a heart-rate monitor, a blood-pressure monitor, a pulse oximeter, or an accelerometer monitoring a person, analyzing data sets collected from the person when the person is stressed and unstressed, analyzing the data sets, and determining a current stress index of the person based on the analysis.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 15, 2012
    Inventors: Jawahar Jain, David Loren Marvit, B. Thomas Adler, Albert H. M. Reinhardt, Rajalakshmi Balakrishnan
  • Calculating and Monitoring a Composite Stress Index
    Publication number: 20120290215
    Abstract: In particular embodiments, a method includes accessing data streams from a first group of physiological sensors monitoring a person, a second group of deconfounding sensors monitoring the person, and a third group of sensors monitoring a stressor, analyzing data sets collected from the person when the person is exposed and not exposed to the stressor, and determining a current stress factor for the stressor with respect to the person based on the analysis.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 15, 2012
    Applicant: Fujitsu Limited
    Inventors: B. Thomas Adler, Jawahar Jain, David Loren Marvit, Rajalakshmi Balakrishnan, Alexander Gilman, Stergios Stergiou, Albert C. Braun, Albert H. M. Reinhardt