Patents by Inventor Natarajan Shankar

Natarajan Shankar 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: 11163745
    Abstract: A system and method for statistical fingerprinting of structured datasets begins by dividing the structured database into groups of data subsets. These subsets are created based on the structure of the data; for example, data delineated by columns and rows may be broken into subsets by designating each column as a subset. A fingerprint is derived from each subset, and then the fingerprint for each subset is combined in order to create an overall fingerprint for the dataset. By applying this process to a “wild file” of unknown provenance, and comparing the result to a data owner's files, it may be determined if data in the wild file was wrongfully acquired from the data owner.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: November 2, 2021
    Assignee: LiveRamp, Inc.
    Inventors: Arthur Coleman, Tsz Ling Christina Leung, Martin Rose, Chivon Powers, Natarajan Shankar
  • Publication number: 20210200735
    Abstract: A system and method for statistical fingerprinting of structured datasets begins by dividing the structured database into groups of data subsets. These subsets are created based on the structure of the data; for example, data delineated by columns and rows may be broken into subsets by designating each column as a subset. A fingerprint is derived from each subset, and then the fingerprint for each subset is combined in order to create an overall fingerprint for the dataset. By applying this process to a “wild file” of unknown provenance, and comparing the result to a data owner's files, it may be determined if data in the wild file was wrongfully acquired from the data owner.
    Type: Application
    Filed: September 7, 2018
    Publication date: July 1, 2021
    Inventors: Arthur Coleman, Tsz Ling Christina Leung, Martin Rose, Chivon Powers, Natarajan Shankar
  • Publication number: 20210142005
    Abstract: In general, the disclosure describes techniques for machine learning for translation to structured computer readable representation. An example method to generate a training set for a natural language translation model includes receiving, by a computing system, a grammar comprising rules, one or more of the rules being associated with random biases; generating, by the computing system, at least one of random trees or random graphs based on the random biases in the grammar; for each of the random trees or random graphs, by the computing system, generating a natural language sample; and generating, by the computing system, the training set with the random trees or random graphs and the corresponding natural language samples.
    Type: Application
    Filed: November 10, 2020
    Publication date: May 13, 2021
    Inventors: Natarajan Shankar, Stephane Graham-Lengrand, Daniel Elenius, Chih-hung Yeh
  • Patent number: 8584248
    Abstract: A method for transforming untrusted applications into trusted executables through static previrtualization is disclosed. For example, the method receives an untrusted application and extracts a system call from the untrusted application. The method then determines if the system call is privileged or non-privileged. If the system call is privileged, the method replaces the system call with a hypercall. If the system call is non-privileged, it is replaced with a library call. The method repeats this process for additional system calls in the untrusted application to create a trusted executable. The method then forwards the trusted executable.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: November 12, 2013
    Assignee: SRI International
    Inventors: Natarajan Shankar, Richard Drews Dean
  • Publication number: 20130111593
    Abstract: A method for transforming untrusted applications into trusted executables through static previrtualization is disclosed. For example, the method receives an untrusted application and extracts a system call from the untrusted application. The method then determines if the system call is privileged or non-privileged. If the system call is privileged, the method replaces the system call with a hypercall. If the system call is non-privileged, it is replaced with a library call. The method repeats this process for additional system calls in the untrusted application to create a trusted executable. The method then forwards the trusted executable.
    Type: Application
    Filed: October 26, 2011
    Publication date: May 2, 2013
    Inventors: Natarajan Shankar, Richard Drews Dean
  • Patent number: 8255694
    Abstract: A method, system, and apparatus for authenticating transactions and records is disclosed. An information-based indicium includes an article bearing a first identifier, wherein the first identifier substantially prevents a single user from accumulating multiple articles bearing the same first identifier, and a first digital certificate that is derived in part by encoding the first identifier, wherein the first digital certificate and the article may be presented together to authenticate the indicium by comparing the first digital certificate and the first identifier.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: August 28, 2012
    Assignee: Sint Holdings Limited Liability Company
    Inventors: Patrick D. Lincoln, Natarajan Shankar
  • Patent number: 8254014
    Abstract: An adaptive optics system is provided, comprising a spatial light modulator configured to modulate an incoming beam with an aberrated wavefront, a beamsplitter configured to receive the modulated beam from the spatial light modulator and to divide the modulated beam into a measurement beam and a reference beam, a spatial filter configured to spatially filter the reference beam, and to interfere the spatially filtered reference beam with the measurement beam to form an interferogram, an imaging device configured to capture an image of the interferogram, and a processor configured to determine the aberrated wavefront and to provide control signals to the spatial light modulator to mitigate aberrations in the aberrated wavefront.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: August 28, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Peter H. Chang, Sami J. Saab, Natarajan Shankar, John A. Koontz, Mark S. Ptak
  • Patent number: 8223760
    Abstract: Systems and methods include providing a router that may be deployed as multiple logical routers that share a common fast interconnect. These logical routers may functionally serve as core routers, peering routers, aggregation routers, etc. A further aspect of the system and methods is that the resources assigned to a logical router are allocated from a pool potentially including multitude of hardware cards. A further aspect of the system and methods is that a logical router may be independently managed by the owner of the router or by an owner of the logical router.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: July 17, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: David D. Ward, George Suwala, Natarajan Shankar, John G. Scudder, Andrew Lunstad
  • Patent number: 8171297
    Abstract: A method, system, and apparatus for authenticating transactions and records is disclosed. A method for authenticating an information-based indicium includes receiving an article bearing a first identifier, wherein the first identifier substantially prevents a single user from accumulating multiple articles bearing the same first identifier, receiving a first digital certificate that is derived in part by encoding the first identifier, and comparing the first digital certificate and the first identifier to authenticate the information-based indicium.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: May 1, 2012
    Assignee: SINT Holdings Limited Liability Company
    Inventors: Patrick D. Lincoln, Natarajan Shankar
  • Patent number: 7914767
    Abstract: A composition for oral radionuclide chelation therapy comprises a DTPA chelate selected from Zn-DTPA and Ca-DTPA and a permeation enhancer that preferentially increases jejunal uptake of the DTPA chelate. The composition has a DTPA chelate bioavailability of at least 10% of the chelate when orally administered to a mammal.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: March 29, 2011
    Assignee: SRI International
    Inventors: Gita Natarajan Shankar, Helen Jaber Parish
  • Patent number: 7764417
    Abstract: An adaptive optics system is provided, comprising a spatial light modulator configured to modulate an incoming beam with an aberrated wavefront, a beamsplitter configured to receive the modulated beam from the spatial light modulator and to divide the modulated beam into a measurement beam and a reference beam, a spatial filter configured to spatially filter the reference beam, and to interfere the spatially filtered reference beam with the measurement beam to form an interferogram, an imaging device configured to capture an image of the interferogram, and a processor configured to determine the aberrated wavefront and to provide control signals to the spatial light modulator to mitigate aberrations in the aberrated wavefront.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: July 27, 2010
    Assignee: Lockheed Martin Corporation
    Inventors: Peter H. Chang, Sami J. Saab, Natarajan Shankar, John A. Koontz, Mark S. Ptak
  • Patent number: 7592021
    Abstract: Formulations and methods for transmucosal delivery of a beneficial agent are described in which a pH-responsive component and a temperature-responsive component are combined and applied to a mucous membrane. The temperature-responsive component is a component that, in aqueous solutions, is capable of undergoing a temperature-dependent sol to gel phase transition. The formulations may be characterized as having bioadhesive properties, and are suitable for delivery of a variety of beneficial agents.
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: September 22, 2009
    Assignee: SRI International
    Inventors: Gita Natarajan Shankar, Rae Lyn Burke
  • Publication number: 20090111736
    Abstract: An orally bioavailable pharmaceutical composition comprises at least 40% (w/w) vancomycin; a permeation enhancer component comprising 0.1 to 10.0% (w/w) of a polyoxyethylene sorbitan fatty acid ester; and a particulate carrier onto which the permeation enhancer component is adsorbed.
    Type: Application
    Filed: October 29, 2007
    Publication date: April 30, 2009
    Inventor: Gita Natarajan Shankar
  • Publication number: 20080304426
    Abstract: Systems and methods include providing a router that may be deployed as multiple logical routers that share a common fast interconnect. These logical routers may functionally serve as core routers, peering routers, aggregation routers, etc. A further aspect of the system and methods is that the resources assigned to a logical router are allocated from a pool potentially including multitude of hardware cards. A further aspect of the system and methods is that a logical router may be independently managed by the owner of the router or by an owner of the logical router.
    Type: Application
    Filed: August 15, 2008
    Publication date: December 11, 2008
    Applicant: Cisco Technology, Inc.
    Inventors: David Delano Ward, George Suwala, Natarajan Shankar, John Galen Scudder, Andrew Lunstad
  • Publication number: 20080207745
    Abstract: A composition for oral treatment of visceral leishmaniasis comprises paromomycin and a permeation enhancer that increases oral bioavailability of the paromomycin to at least 20%.
    Type: Application
    Filed: February 24, 2007
    Publication date: August 28, 2008
    Inventors: Gita Natarajan Shankar, Helen Jaber Parish
  • Patent number: 7415507
    Abstract: Systems and methods include providing a router that may be deployed as multiple logical routers that share a common fast interconnect. These logical routers may functionally serve as core routers, peering routers, aggregation routers, etc. A further aspect of the system and methods is that the resources assigned to a logical router are allocated from a pool potentially including multitude of hardware cards. A further aspect of the system and methods is that a logical router may be independently managed by the owner of the router or by an owner of the logical router.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: August 19, 2008
    Assignee: Cisco Technology, Inc.
    Inventors: David Delano Ward, George Suwala, Natarajan Shankar, John Galen Scudder, Andrew Lunstad
  • Patent number: 7380950
    Abstract: A high-bandwidth deformable fast steering mirror (“HDFSM”) system, including an electromechanical fast steering mirror (“FSM”) apparatus, and a deformable mirror (“DM”) apparatus mounted on the electromechanical FSM apparatus. The DM apparatus further includes a DM substrate, a backplane assembly, a plurality of electrostrictive actuators in physical communication with and between the DM substrate and the backplane assembly, for deforming the DM substrate, and a plurality of strain gauges, each strain gauge mounted on one of the plurality of electrostrictive actuators, the plurality of strain gauges measuring individual positions of the plurality of electrostrictive actuators and transmitting the positions as actuator position signals. The high-bandwidth deformable FSM also includes a closed-loop control system, the control system controlling the electromechanical FSM apparatus and the DM apparatus based upon a command input and the actuator position signals.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: June 3, 2008
    Assignee: Lockheed Martin Corporation
    Inventors: Kenneth R. Lorell, Stephen R. Winzer, Craig L. Horn, Natarajan Shankar, Robert R. Clappier
  • Publication number: 20070196273
    Abstract: A composition for oral radionuclide chelation therapy comprises a DTPA chelate selected from Zn-DTPA and Ca-DTPA and a permeation enhancer that preferentially increases jejunal uptake of the DTPA chelate. The composition has a DTPA chelate bioavailability of at least 10% of the chelate when orally administered to a mammal.
    Type: Application
    Filed: February 14, 2007
    Publication date: August 23, 2007
    Inventors: Gita Natarajan Shankar, Helen Jaber Parish
  • Publication number: 20070083753
    Abstract: A method, system, and apparatus for authenticating transactions and records is disclosed. A method for authenticating an information-based indicium includes receiving an article bearing a first identifier, wherein the first identifier substantially prevents a single user from accumulating multiple articles bearing the same first identifier, receiving a first digital certificate that is derived in part by encoding the first identifier, and comparing the first digital certificate and the first identifier to authenticate the information-based indicium.
    Type: Application
    Filed: September 15, 2006
    Publication date: April 12, 2007
    Inventors: Patrick Lincoln, Natarajan Shankar
  • Patent number: RE42748
    Abstract: A composition for oral radionuclide chelation therapy comprises a DTPA chelate selected from Zn-DTPA and Ca-DTPA and a permeation enhancer that preferentially increases jejunal uptake of the DTPA chelate. The composition has a DTPA chelate bioavailability of at least 10% of the chelate when orally administered to a mammal.
    Type: Grant
    Filed: April 17, 2011
    Date of Patent: September 27, 2011
    Assignee: SRI International
    Inventors: Gita Natarajan Shankar, Helen Jaber Parish