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).
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Patent number: 11163745Abstract: 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: GrantFiled: September 7, 2018Date of Patent: November 2, 2021Assignee: LiveRamp, Inc.Inventors: Arthur Coleman, Tsz Ling Christina Leung, Martin Rose, Chivon Powers, Natarajan Shankar
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Publication number: 20210200735Abstract: 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: ApplicationFiled: September 7, 2018Publication date: July 1, 2021Inventors: Arthur Coleman, Tsz Ling Christina Leung, Martin Rose, Chivon Powers, Natarajan Shankar
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Publication number: 20210142005Abstract: 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: ApplicationFiled: November 10, 2020Publication date: May 13, 2021Inventors: Natarajan Shankar, Stephane Graham-Lengrand, Daniel Elenius, Chih-hung Yeh
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Patent number: 8584248Abstract: 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: GrantFiled: October 26, 2011Date of Patent: November 12, 2013Assignee: SRI InternationalInventors: Natarajan Shankar, Richard Drews Dean
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Publication number: 20130111593Abstract: 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: ApplicationFiled: October 26, 2011Publication date: May 2, 2013Inventors: Natarajan Shankar, Richard Drews Dean
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Patent number: 8255694Abstract: 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: GrantFiled: September 15, 2006Date of Patent: August 28, 2012Assignee: Sint Holdings Limited Liability CompanyInventors: Patrick D. Lincoln, Natarajan Shankar
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Patent number: 8254014Abstract: 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: GrantFiled: June 16, 2010Date of Patent: August 28, 2012Assignee: Lockheed Martin CorporationInventors: Peter H. Chang, Sami J. Saab, Natarajan Shankar, John A. Koontz, Mark S. Ptak
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Patent number: 8223760Abstract: 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: GrantFiled: August 15, 2008Date of Patent: July 17, 2012Assignee: Cisco Technology, Inc.Inventors: David D. Ward, George Suwala, Natarajan Shankar, John G. Scudder, Andrew Lunstad
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Patent number: 8171297Abstract: 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: GrantFiled: September 15, 2006Date of Patent: May 1, 2012Assignee: SINT Holdings Limited Liability CompanyInventors: Patrick D. Lincoln, Natarajan Shankar
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Patent number: 7914767Abstract: 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: GrantFiled: February 14, 2007Date of Patent: March 29, 2011Assignee: SRI InternationalInventors: Gita Natarajan Shankar, Helen Jaber Parish
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Patent number: 7764417Abstract: 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: GrantFiled: October 24, 2008Date of Patent: July 27, 2010Assignee: Lockheed Martin CorporationInventors: Peter H. Chang, Sami J. Saab, Natarajan Shankar, John A. Koontz, Mark S. Ptak
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Patent number: 7592021Abstract: 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: GrantFiled: October 3, 2005Date of Patent: September 22, 2009Assignee: SRI InternationalInventors: Gita Natarajan Shankar, Rae Lyn Burke
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Publication number: 20090111736Abstract: 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: ApplicationFiled: October 29, 2007Publication date: April 30, 2009Inventor: Gita Natarajan Shankar
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Publication number: 20080304426Abstract: 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: ApplicationFiled: August 15, 2008Publication date: December 11, 2008Applicant: Cisco Technology, Inc.Inventors: David Delano Ward, George Suwala, Natarajan Shankar, John Galen Scudder, Andrew Lunstad
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Publication number: 20080207745Abstract: 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: ApplicationFiled: February 24, 2007Publication date: August 28, 2008Inventors: Gita Natarajan Shankar, Helen Jaber Parish
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Patent number: 7415507Abstract: 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: GrantFiled: February 5, 2004Date of Patent: August 19, 2008Assignee: Cisco Technology, Inc.Inventors: David Delano Ward, George Suwala, Natarajan Shankar, John Galen Scudder, Andrew Lunstad
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Patent number: 7380950Abstract: 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: GrantFiled: February 15, 2005Date of Patent: June 3, 2008Assignee: Lockheed Martin CorporationInventors: Kenneth R. Lorell, Stephen R. Winzer, Craig L. Horn, Natarajan Shankar, Robert R. Clappier
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Publication number: 20070196273Abstract: 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: ApplicationFiled: February 14, 2007Publication date: August 23, 2007Inventors: Gita Natarajan Shankar, Helen Jaber Parish
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Publication number: 20070083753Abstract: 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: ApplicationFiled: September 15, 2006Publication date: April 12, 2007Inventors: Patrick Lincoln, Natarajan Shankar
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Patent number: RE42748Abstract: 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: GrantFiled: April 17, 2011Date of Patent: September 27, 2011Assignee: SRI InternationalInventors: Gita Natarajan Shankar, Helen Jaber Parish