Patents by Inventor Ravi Rastogi
Ravi Rastogi 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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Publication number: 20190094232Abstract: Disclosed are analyte monitoring systems and methods for calibrating an analyte sensor using one or more reference measurements. These systems and methods may include using a conversion function and first sensor data to calculate a first sensor analyte level, weighting a first reference analyte measurement (RM1) and one or more previous reference analyte measurements according to a weighted average cost function, updating the conversion function using the weighted RM1 and the one or more weighted previous reference analyte measurements as calibration points, and using the updated conversion function and second sensor data to calculate a second sensor analyte level. In some aspects, the systems and methods may include updating one or more of lag parameters used to calculate the sensor analyte levels.Type: ApplicationFiled: September 26, 2018Publication date: March 28, 2019Applicant: Senseonics, IncorporatedInventors: Xiaoxiao Chen, Ravi Rastogi, Andrew DeHennis, Patty Sanchez
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Publication number: 20190094231Abstract: Disclosed are analyte monitoring systems and methods for calibrating an analyte sensor using one or more reference measurements. These systems and methods may include using a conversion function and first sensor data to calculate a first sensor analyte level, weighting a first reference analyte measurement (RM1) and one or more previous reference analyte measurements according to a weighted average cost function, updating the conversion function using the weighted RM1 and the one or more weighted previous reference analyte measurements as calibration points, and using the updated conversion function and second sensor data to calculate a second sensor analyte level. In some aspects, the systems and methods may include updating one or more of lag parameters used to calculate the sensor analyte levels.Type: ApplicationFiled: September 26, 2018Publication date: March 28, 2019Applicant: Senseonics, IncorporatedInventors: Xiaoxiao Chen, Ravi Rastogi, Andrew DeHennis, Patty Sanchez
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Publication number: 20190090790Abstract: Disclosed are analyte monitoring systems and methods for calibrating an analyte sensor using one or more reference measurements. These systems and methods may include using a conversion function and first sensor data to calculate a first sensor analyte level, weighting a first reference analyte measurement (RM1) and one or more previous reference analyte measurements according to a weighted average cost function, updating the conversion function using the weighted RM1 and the one or more weighted previous reference analyte measurements as calibration points, and using the updated conversion function and second sensor data to calculate a second sensor analyte level. In some aspects, the systems and methods may include updating one or more of lag parameters used to calculate the sensor analyte levels.Type: ApplicationFiled: September 26, 2018Publication date: March 28, 2019Applicant: Senseonics, IncorporatedInventors: Xiaoxiao Chen, Ravi Rastogi, Andrew DeHennis, Patty Sanchez
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Publication number: 20190094233Abstract: Disclosed are analyte monitoring systems and methods for calibrating an analyte sensor using one or more reference measurements. These systems and methods may include using a conversion function and first sensor data to calculate a first sensor analyte level, weighting a first reference analyte measurement (RM1) and one or more previous reference analyte measurements according to a weighted average cost function, updating the conversion function using the weighted RM1 and the one or more weighted previous reference analyte measurements as calibration points, and using the updated conversion function and second sensor data to calculate a second sensor analyte level. In some aspects, the systems and methods may include updating one or more of lag parameters used to calculate the sensor analyte levels.Type: ApplicationFiled: September 26, 2018Publication date: March 28, 2019Applicant: Senseonics, IncorporatedInventors: Xiaoxiao Chen, Ravi Rastogi, Andrew DeHennis, Patty Sanchez
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Publication number: 20170215815Abstract: Systems, methods, and apparatuses that provide alerts based on analyte data and acceleration data. An analyte sensor may generate the analyte data. An accelerometer may generate the acceleration data. A transceiver may convert the analyte data into analyte concentration values. The transceiver may convert the acceleration data into activity information. The transceiver may generate an alert based on the analyte concentration values and activity information. The alert may be communicated to a user by a mobile medical application executed on the transceiver and/or a display device (e.g., smartphone) in communication with the transceiver. The mobile medical application may display (e.g., on a display of the display device) a plot or graph of the analyte concentration values and activity information with respect to time.Type: ApplicationFiled: April 12, 2017Publication date: August 3, 2017Applicant: Senseonics, IncorporatedInventors: Ravi Rastogi, Andrew DeHennis
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Publication number: 20160345874Abstract: A computing device receives analyte data produced by an analyte monitoring sensor over a communications link from at least one first device. Health data, comprising at least part of the analyte data, may be communicated over a communications link to at least one second device in response to a request. The first device may be positioned over the analyte monitoring sensor using signal strength and location information. External analyte data may be employed to calibrate the analyte monitoring sensor.Type: ApplicationFiled: May 27, 2016Publication date: December 1, 2016Applicant: Senseonics, IncorporatedInventors: Barkha Raisoni, David Lerner, Christina Long, Xiaoxiao Chen, Todd Whitehurst, Ravi Rastogi, Andrew Dehennis
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Publication number: 20150141770Abstract: Systems, methods, and apparatuses that provide alerts based on analyte data and acceleration data. An analyte sensor may generate the analyte data. An accelerometer may generate the acceleration data. A transceiver may convert the analyte data into analyte concentration values. The transceiver may convert the acceleration data into activity information. The transceiver may generate an alert based on the analyte concentration values and activity information. The alert may be communicated to a user by a mobile medical application executed on the transceiver and/or a display device (e.g., smartphone) in communication with the transceiver. The mobile medical application may display (e.g., on a display of the display device) a plot or graph of the analyte concentration values and activity information with respect to time.Type: ApplicationFiled: December 3, 2014Publication date: May 21, 2015Applicant: Senseonics, IncorporatedInventors: Ravi Rastogi, Andrew DeHennis
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Publication number: 20090078570Abstract: Target/backing plate constructions and methods of forming target/backing plate constructions are disclosed herein. The targets and backing plates can be bonded to one another through an appropriate interlayer. The targets can comprise one or more of titanium, tantalum, titanium zirconium, hafnium, niobium, vanadium, tungsten, copper or a combination thereof. The interlayer can comprise one or more of silver, copper, nickel, tin, titanium and indium. Target/backing plate constructions of the present invention can have bond strengths of at least 20 ksi and an average grain size within the target of less than 80 microns.Type: ApplicationFiled: October 28, 2008Publication date: March 26, 2009Inventors: Wuwen Yi, Ravi Rastogi, Jaeyeon Kim, Brett Clark, Susan D. Storhers, Michael Pinter, Janine K. Kardokus
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Publication number: 20080291634Abstract: Thermal interface materials are disclosed that include at least one matrix material component, at least one high conductivity filler component, at least one solder material; and at least one material modification agent, wherein the at least one material modification agent improves the thermal performance, compatibility, physical quality or a combination thereof of the thermal interface material. Methods of forming thermal interface materials are also disclosed that include providing each of the at least one matrix material component, at least one high conductivity filler, at least one solder material and at least one material modification agent, blending the components; and optionally curing the components pre- or post-application of the thermal interface material to the surface, substrate or component.Type: ApplicationFiled: May 21, 2008Publication date: November 27, 2008Inventors: Martin W. Weiser, Kikue S. Burnham, De-Ling Zhou, Roger Y. Leung, Jan Nedbal, Ravi Rastogi
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Publication number: 20080197017Abstract: The Invention includes target/backing plate constructions and methods of forming target/backing plate constructions. The targets and backing plates can be bonded to one another through an appropriate interlayer. The targets can comprise one or more of aluminum, copper, tantalum and titanium. The interlayer can comprise one or more of silver, copper, nickel, tin, titanium and indium. Target/backing plate constructions of the present invention can have bond strengths of at least 20 ksi and an average grain size within the target of less than 80 microns.Type: ApplicationFiled: August 10, 2004Publication date: August 21, 2008Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Wuwen Yi, Ravi Rastogi, Jaeyoon Kim, Brett M. Clark
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Publication number: 20080112878Abstract: A chalcogenide compound synthesis method includes homogeneously mixing solid particles and, during the mixing, imparting kinetic energy to the particle mixture, heating the particle mixture, alloying the elements, and forming alloyed particles containing the compound. Another chalcogenide compound synthesis method includes, under an inert atmosphere, melting the particle mixture in a heating vessel, removing the melt from the heating vessel, placing the melt in a quenching vessel, and solidifying the melt. The solidified melt is reduced to alloyed particles containing the compound. An alloy casting apparatus includes an enclosure, a heating vessel, a flow controller, a collection pan and an actively cooled quench plate. The heating vessel has a bottom-pouring orifice and a pour actuator. The flow controller operates the pour actuator from outside the enclosure. The quench plate is positioned above a bottom of the collection pan and below the bottom-pouring orifice.Type: ApplicationFiled: November 9, 2006Publication date: May 15, 2008Inventors: Janine K. Kardokus, Michael R. Pinter, Ravi Rastogi, Diana L. Morales, Michael D. Bayton, Norman L. Sand, Bryan E. Powers
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Publication number: 20080023665Abstract: Components and materials, including thermal interface materials, described herein include at least one matrix component, at least one high conductivity component, and at least one solder material. In some embodiments, the at least one high conductivity component includes a filler component, a lattice component or a combination thereof. Methods are also described herein of producing a thermal interface material that include providing at least one matrix component, providing at least one high conductivity component, providing at least one solder material, and blending the at least one matrix component, the at least one high conductivity component and the at least one solder material.Type: ApplicationFiled: July 25, 2006Publication date: January 31, 2008Inventors: Martin W. Weiser, Ravi Rastogi, Meghana Nerurkar, Devesh Mathur, Colin Xingcun Tong
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Publication number: 20080026181Abstract: Synergistically-modified surfaces are described herein, where a surface having a surface profile is synergistically modified such that the thermal contact resistance between the surface and the at least one thermal interface material is reduced as compared to a surface that is not synergistically modified. Methods are also described herein of producing a synergistically-modified surface, comprising a) providing a surface having a surface profile, b) providing at least one thermal interface material, c) synergistically modifying the surface profile of the surface such that thermal contact resistance between the surface and the at least one thermal interface material is reduced as compared to a surface that is not synergistically modified. Layered components are also disclosed that comprise a synergistically-modified surface; a thermal interface material; and at least one additional layer of material.Type: ApplicationFiled: July 25, 2006Publication date: January 31, 2008Inventors: Ravi Rastogi, Martin W. Weiser
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Publication number: 20070099332Abstract: A PVD component forming method includes identifying two or more solids having different compositions, homogeneously mixing particles of the solids using proportions which yield a bulk formula, consolidating the homogeneous particle mixture to obtain a rigid mass while applying pressure and using a temperature below the minimum temperature of melting or sublimation of the solids, and forming a PVD component including the mass. A chalcogenide PVD component includes a rigid mass containing a bonded homogeneous mixture of particles of two or more solids having different compositions, the mass having a microcomposite structure exhibiting a maximum feature size of 500 ?m or less, and one or more of the solids containing a compound of two or more bulk formula elements. An alternative PVD component exhibits a uniform composition with less than 10% difference in atomic compositions from feature to feature.Type: ApplicationFiled: November 9, 2006Publication date: May 3, 2007Inventors: Janine Kardokus, Michael Pinter, Ravi Rastogi, Diana Morales, Michael Payton
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Publication number: 20070007505Abstract: A chalcogenide PVD component includes a bonded mixture of particles of a first solid and a second solid. The first solid contains a first compound. The particle mixture may exhibit a minimum solid phase change temperature greater than a solid phase change phase temperature of an element in the first compound. The particle mixture may exhibit a maximum solid phase change temperature less than a solid phase change temperature of an element in the first compound. The first compound may be a congruently melting line compound. The bonded mixture may lack melt regions or sublimation gaps. The particle mixture may exhibit a bulk formula including three or more elements. The particle mixture may include two or more line compounds.Type: ApplicationFiled: July 7, 2005Publication date: January 11, 2007Inventors: Ravi Rastogi, Janine Kardokus, Diana Morales
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Publication number: 20030055920Abstract: A system for automatic quality of service (QoS) configuration within packet switching networks is provided. The system is used in combination compatible network devices that support a QoS interface. The QoS interface allows the device to be dynamically configured to apply different QoS configurations to individual microflows. The QoS interface also allows QoS related events to be monitored. The automatic QoS configuration system allows QoS configurations to be defined in terms of QoS policies. Each QoS policy is a mapping that defines how the QoS configuration for a microflow changes in response to physical, logical or temporal events. A management system controls (at least partially) one or more of the compatible network devices. The management system monitors the QoS events generated by each compatible network device. In response to these and other events, the management system dynamically reconfigures each compatible network device to enforce the QoS policies for that device.Type: ApplicationFiled: September 17, 2001Publication date: March 20, 2003Inventors: Deepak Kakadia, Preeti Bhoj, Ravi Rastogi, Narendra Dhara, Vairamuthu Karuppiah, Ivan Giron
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Patent number: 5157668Abstract: An artificial intelligence based method and apparatus for locating faults in electronic units includes a technique for modelling electronic units in terms of behavioral constraints. Behavioral constraints model circuit components in terms of changes in outputs thereof which result from changes in inputs thereto. These changes, referred to as "phase changes" may be supplemented by gain and compliance constraints to model an electronic unit at all functional abstraction or hierarchical decomposition levels thereof. In addition to providing a universal modelling scheme, behavioral constraint relationships provide a highly accurate indication of subtle changes in a circuit, for accurate fault location or troubleshooting.Troubleshooting takes place by applying a predetermined search strategy on the electronic unit which is represented by behavioral constraints. The search strategy begins with a top down search.Type: GrantFiled: July 5, 1989Date of Patent: October 20, 1992Assignee: Applied Diagnostics, Inc.Inventors: Charles W. Buenzli, Jr., Ravi Rastogi, Kenneth F. Sierzega, Maurice M. Tayeh
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Patent number: 5145955Abstract: The present invention describes a process for the preparation of a fraction, mainly containing picroside I and kurrooa, from the plant Picrorhiza kurrooa.Type: GrantFiled: October 28, 1991Date of Patent: September 8, 1992Assignee: Council of Scientific & Industrial ResearchInventors: Bacchan S. Aswal, Ramesh Chander, Sunil K. Chatterji, Bhola N. Dhawan, Yogesh Dwivedi, Narendra K. Garg, Poonam Jain, Narinder K. Kapoor, Dinesh K. Kulshreshtha, Bishan N. Mehrotra, Gyanendra K. Patnaik, Ravi Rastogi, Jagat P. S. Sarin, Krishna C. Saxena, Shekhar C. Sharma, Shri K. Sharma, Binduja Shukla, Pradeep K. S. Visen