Patents by Inventor Vijay Ramakrishnan
Vijay Ramakrishnan 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: 20240114800Abstract: A piezoelectric device comprises: a substrate (12) and a lead magnesium niobate-lead titanate (PMNPT) piezoelectric film on the substrate (12). The PMNPT film comprises: a thermal oxide layer (20) on the substrate (12); a first electrode above on the thermal oxide layer (20); a seed layer (26) above the first electrode; a lead magnesium niobate-lead titanate (PMNPT) piezoelectric layer (16) on the seed layer (26), and a second electrode on the PMNPT piezoelectric layer (16). The PMNPT film comprises a piezoelectric coefficient (d33) of greater than or equal to 200 pm/V.Type: ApplicationFiled: January 18, 2021Publication date: April 4, 2024Applicant: Applied Materials, Inc.Inventors: Vijay Bhan Sharma, Yuan Xue, Abhijeet Laxman Sangle, Bharatwaj Ramakrishnan, Yi Yang, Suresh Chand Seth, Ankur Anant Kadam
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Publication number: 20240098655Abstract: Techniques described herein are directed toward smart external interference detection and avoidance. An example method includes determining a first received signal strength indicator (RSSI) value of a received first signal across a radio band, wherein the first RSSI value is based at least in part on a second signal transmitted by an interfering device. The first received RSSI value is compared with a threshold value. A first gain adjustment value is determined for a receiver chain of the first computing device and a second gain adjustment value of a transmitter chain based at least in part on the comparison. A first gain of a first amplifier of the receiver chain is adjusted based at least in part on the first gain adjustment value. A second gain of a second amplifier of the transmitter chain is adjusted based at least in part on the second gain adjustment value.Type: ApplicationFiled: September 19, 2022Publication date: March 21, 2024Applicant: Apple Inc.Inventors: Sathish Shanbhag Kota, Vijay Kumar Ramamurthi, Vijaykrishnan Ramakrishnan
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Publication number: 20240060403Abstract: An electric submersible pump (ESP), comprising: an intake that suctions fluids into the ESP, wherein the fluids include a mixture of gas, water, and oil; a discharge that discharges the fluids from the ESP; an acoustic intake transducer that determines the speed of sound in the fluids suctioned into the ESP at the intake; and a first acoustic discharge transducer that determines the speed of sound in the fluids discharged from the ESP, wherein the speed of sound of the fluid at both intake and discharge is used to calculate a gas volume fraction difference of the multiphase fluid mixture across the intake and discharge of the pump, and wherein the gas volume fraction difference is used as feedback to control the ESP.Type: ApplicationFiled: August 16, 2022Publication date: February 22, 2024Applicant: Aramco Services CompanyInventors: Robert Adams, Vijay Ramakrishnan, Max Deffenbaugh
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Publication number: 20240027243Abstract: A multiphase fluid is flowed from a flow pipe to a U-bend. Several differential pressures of the multiphase fluid flowing through the flow pipe and U-bend are measured. A mixture density of the multiphase fluid is determined at least based on the measured differential pressures. A total flow rate of the multiphase fluid is determined at least based on the measured differential pressures. In some cases, flow rates of each of the phases of the multiphase fluid can be determined at least based on the measured differential pressures.Type: ApplicationFiled: July 19, 2022Publication date: January 25, 2024Inventor: Vijay Ramakrishnan
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Publication number: 20240027242Abstract: A multiphase fluid is flowed from a flow pipe to a U-bend. Several differential pressures of the multiphase fluid flowing through the flow pipe and U-bend are measured. A total flow rate of the multiphase fluid is determined at least based on the measured differential pressures. In some cases, flow rates of each of the phases of the multiphase fluid can be determined at least based on the measured differential pressures.Type: ApplicationFiled: July 19, 2022Publication date: January 25, 2024Inventor: Vijay Ramakrishnan
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Publication number: 20240027317Abstract: A multiphase fluid is flowed from a flow pipe to a U-bend. Several differential pressures of the multiphase fluid flowing through the flow pipe and U-bend are measured. A mixture density of the multiphase fluid is determined at least based on the measured differential pressures.Type: ApplicationFiled: July 19, 2022Publication date: January 25, 2024Inventor: Vijay Ramakrishnan
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Patent number: 11815380Abstract: Near-Infrared (NIR) filter photometry is used to calculate component concentrations in multiphase flows. The disclosed methodology adapts the Beer-Lambert law for nonhomogeneous immiscible mixtures (such as oil and water) by modeling the fluid layer as a nonhomogeneous distribution of its components and deriving a mathematical relationship between measured absorbances, component path lengths, and non-homogeneity factors. The methodology is integrated into a multi-channel filter photometer to measure phase concentrations in oil-and-gas pipelines. The system is proven more accurate than current state of the art based on data from simulations, multiphase flow laboratories and field trials.Type: GrantFiled: September 2, 2022Date of Patent: November 14, 2023Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLCInventors: Vijay Ramakrishnan, John Lievois
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Publication number: 20230019978Abstract: Systems, methods, and computer-readable media for correcting transcriptions created through automatic speech recognition. A transcription of speech created using an automatic speech recognition system can be received. One or more domain-specific contexts associated with the speech can be identified and a text span that includes a mistranscribed entry can be recognized from the speech based on the one or more domain-specific contexts. Additionally, features can be extracted from the mistranscribed entry and the extracted features can be matched against an index of domain-specific entries to identify a correct entry of the mistranscribed entry. Subsequently, the transcription can be corrected by replacing with the mistranscribed entry with the correct entry.Type: ApplicationFiled: September 22, 2022Publication date: January 19, 2023Inventors: Karthik Raghunathan, Arushi Raghuvanshi, Vijay Ramakrishnan Thimmaiyah, Lucien Serapio Carroll, Varsha Ravikumar Embar
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Publication number: 20220412784Abstract: Near-Infrared (NIR) filter photometry is used to calculate component concentrations in multiphase flows. The disclosed methodology adapts the Beer-Lambert law for nonhomogeneous immiscible mixtures (such as oil and water) by modeling the fluid layer as a nonhomogeneous distribution of its components and deriving a mathematical relationship between measured absorbances, component path lengths, and non-homogeneity factors. The methodology is integrated into a multi-channel filter photometer to measure phase concentrations in oil-and-gas pipelines. The system is proven more accurate than current state of the art based on data from simulations, multiphase flow laboratories and field trials.Type: ApplicationFiled: September 2, 2022Publication date: December 29, 2022Inventors: Vijay Ramakrishnan, John Lievois
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Patent number: 11482213Abstract: Systems, methods, and computer-readable media for correcting transcriptions created through automatic speech recognition. A transcription of speech created using an automatic speech recognition system can be received. One or more domain-specific contexts associated with the speech can be identified and a text span that includes a mistranscribed entry can be recognized from the speech based on the one or more domain-specific contexts. Additionally, features can be extracted from the mistranscribed entry and the extracted features can be matched against an index of domain-specific entries to identify a correct entry of the mistranscribed entry. Subsequently, the transcription can be corrected by replacing with the mistranscribed entry with the correct entry.Type: GrantFiled: January 29, 2019Date of Patent: October 25, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Karthik Raghunathan, Arushi Raghuvanshi, Vijay Ramakrishnan Thimmaiyah, Lucien Serapio Carroll, Varsha Ravikumar Embar
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Patent number: 11448536Abstract: Near-Infrared (NIR) filter photometry is used to calculate component concentrations in multiphase flows. The disclosed methodology adapts the Beer-Lambert law for nonhomogeneous immiscible mixtures (such as oil and water) by modeling the fluid layer as a nonhomogeneous distribution of its components and deriving a mathematical relationship between measured absorbances, component path lengths, and non-homogeneity factors. The methodology is integrated into a multi-channel filter photometer to measure phase concentrations in oil-and-gas pipelines. The system is proven more accurate than current state of the art based on data from simulations, multiphase flow laboratories and field trials.Type: GrantFiled: October 16, 2019Date of Patent: September 20, 2022Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLCInventors: Vijay Ramakrishnan, John Lievois
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Publication number: 20220282441Abstract: A transportable, flexible rope net gabion useful for scour protection includes a lifting ring, a plurality of polymer ropes connected to the lifting ring, a polymer net connected to the polymer ropes, and a plurality of stones or boulders. Up to 45% of the volume of the polymer net is packed with the stones or boulders, so that the rope net gabion can be evenly positioned around a structure to be supported. The polymer ropes, the polymer net, or both the polymer ropes and the polymer net are made using virgin high density polyethylene (HDPE).Type: ApplicationFiled: May 27, 2022Publication date: September 8, 2022Inventors: Sanjay Vasudeo RAUT, Thirumalai Purushottam KULKARNI, Vijay RAMAKRISHNAN, Vayu Garware, Gaurav Pathare
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Publication number: 20210230825Abstract: Disclosed herein is an eco-friendly, flexible rope net gabion (5) for facilitating scour protection. Said flexible rope net gabion is packed to the extent of 45% with rocks or boulders. The packing to the extent of 45% allows the flexible rope net gabion to be evenly position around the structure (100) to provide uniform anchorage.Type: ApplicationFiled: July 13, 2019Publication date: July 29, 2021Inventors: Sanjay Vasudeo RAUT, Thirumalai Purushottam KULKARNI, Vijay RAMAKRISHNAN
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Publication number: 20210225475Abstract: The present disclosure provides methods, processes, reagents and kits for novel healthcare delivery, treatment and payment, particularly for achieving better economic outcomes in patients treated with specialty drugs. Methods, processes, and kits provide a number of uses, including, for providing assurance, both efficacy and financial, theragnostic-guidance, for providing therapeutic appropriateness, therapeutic guidance, therapeutic effectiveness, and selection of alternative therapeutic strategies, and providing product differentiation and presumably market enrichment for a specialty drug, for authorizing payment and delivering the drug directly from a pharmaceutical company to a patient or her specialty physician through a novel healthcare delivery platform. Medical records and databases using these strategies are also provided.Type: ApplicationFiled: March 16, 2021Publication date: July 22, 2021Inventor: Vijay Ramakrishnan
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Patent number: 10996224Abstract: This document relates to materials and methods in assessing and treating mammals (e.g., humans) with precursor plasma cell (PC) disorders. Materials and methods for determining if a mammal (e.g., a mammal having a precursor plasma cell disorder) has an elevated level of 2-hydroxyglutarate (2-HG) that can be used to identify the precursor plasma cell disorder as likely to progress to a PC cancer (e.g., multiple myeloma) are provided. Materials and methods for treating a mammal having a precursor PC disorder at high risk of progressing to a PC cancer also are provided.Type: GrantFiled: March 12, 2018Date of Patent: May 4, 2021Assignee: Mayo Foundation for Medical Education and ResearchInventors: Wilson I. Gonsalves, Shaji Kumar, K. Sreekumaran Nair, Vijay Ramakrishnan
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Publication number: 20210116276Abstract: Near-Infrared (NIR) filter photometry is used to calculate component concentrations in multiphase flows. The disclosed methodology adapts the Beer-Lambert law for nonhomogeneous immiscible mixtures (such as oil and water) by modeling the fluid layer as a nonhomogeneous distribution of its components and deriving a mathematical relationship between measured absorbances, component path lengths, and non-homogeneity factors. The methodology is integrated into a multi-channel filter photometer to measure phase concentrations in oil-and-gas pipelines. The system is proven more accurate than current state of the art based on data from simulations, multiphase flow laboratories and field trials.Type: ApplicationFiled: October 16, 2019Publication date: April 22, 2021Inventors: Vijay Ramakrishnan, John Lievois
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Publication number: 20200395103Abstract: Disclosed herein are methods of performing clinical trials. Also disclosed herein are methods of obtaining payments for a medicament. Also disclosed herein are systems and devices for selecting a medicament for a subject.Type: ApplicationFiled: February 20, 2019Publication date: December 17, 2020Inventors: Vijay RAMAKRISHNAN, Edwin P. CHING
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Publication number: 20200027445Abstract: Systems, methods, and computer-readable media for correcting transcriptions created through automatic speech recognition. A transcription of speech created using an automatic speech recognition system can be received. One or more domain-specific contexts associated with the speech can be identified and a text span that includes a mistranscribed entry can be recognized from the speech based on the one or more domain-specific contexts. Additionally, features can be extracted from the mistranscribed entry and the extracted features can be matched against an index of domain-specific entries to identify a correct entry of the mistranscribed entry. Subsequently, the transcription can be corrected by replacing with the mistranscribed entry with the correct entry.Type: ApplicationFiled: January 29, 2019Publication date: January 23, 2020Inventors: Karthik Raghunathan, Arushi Raghuvanshi, Vijay Ramakrishnan Thimmaiyah, Lucien Serapio Carroll, Varsha Ravikumar Embar
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Publication number: 20190378597Abstract: The present disclosure provides methods, processes, reagents and kits for novel healthcare delivery, treatment and payment, particularly for achieving better economic outcomes in patients treated with specialty drugs. Methods, processes, and kits provide a number of uses, including, for providing assurance, both efficacy and financial, theragnostic-guidance, for providing therapeutic appropriateness, therapeutic guidance, therapeutic effectiveness, and selection of alternative therapeutic strategies, and providing product differentiation and presumably market enrichment for a specialty drug, for authorizing payment and delivering the drug directly from a pharmaceutical company to a patient or her specialty physician through a novel healthcare delivery platform. Medical records and databases using these strategies are also provided.Type: ApplicationFiled: November 23, 2016Publication date: December 12, 2019Inventor: Vijay Ramakrishnan
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Publication number: 20180275132Abstract: This document relates to materials and methods in assessing and treating mammals (e.g., humans) with precursor plasma cell (PC) disorders. Materials and methods for determining if a mammal (e.g., a mammal having a precursor plasma cell disorder) has an elevated level of 2-hydroxyglutarate (2-HG) that can be used to identify the precursor plasma cell disorder as likely to progress to a PC cancer (e.g., multiple myeloma) are provided. Materials and methods for treating a mammal having a precursor PC disorder at high risk of progressing to a PC cancer also are provided.Type: ApplicationFiled: March 12, 2018Publication date: September 27, 2018Applicant: Mayo Foundation for Medical Education and ResearchInventors: Wilson I. Gonsalves, Shaji Kumar, K. Sreekumaran Nair, Vijay Ramakrishnan