Patents by Inventor Rajiv Gupta
Rajiv Gupta 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: 11792757Abstract: A radio node may calculate one or more performance metrics based on measured satellite signals, which are associated with a global positioning system, or wireless signals that are associated with a cellular-telephone network. Then, the radio node may determine, based on the one or more performance metrics, whether the radio node is a synchronization master in a cluster of radio nodes. When the radio node is the synchronization master, the radio node may provide information intended for a computer specifying that the radio node is the synchronization master and the one or more performance metrics. In response, the radio node may receive a synchronization request associated with another radio node in the cluster. Furthermore, the radio node may provide the synchronization information intended for the other radio node, where the synchronization information specifies time, frequency, and phase synchronization for at least the cluster.Type: GrantFiled: May 24, 2022Date of Patent: October 17, 2023Assignee: ARRIS Enterprises LLCInventors: Paul Petrus, Yves Eteve, Rajiv Gupta, Shailender Potharaju
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Publication number: 20230190214Abstract: X-ray absorption of breast cancers and surrounding healthy tissue can be very similar, a situation that sometimes leads to missed cancers or false-positive diagnoses. To increase the accuracy of tomosynthesis and cancer diagnosis, dynamic X-ray elastography using a novel pulsed X-ray source synchronized to shear waves generated in a sample is described in the present disclosure. This imaging modality provides both absorption and mechanical properties of the imaged sample. A vibration source is used to vibrate the sample while a synchronously pulsed cold cathode X-ray source images the mechanical deformation. The generated stroboscopic images are further used to derive stiffness maps of the sample in addition to the conventional X-ray image.Type: ApplicationFiled: December 16, 2022Publication date: June 22, 2023Inventors: Rajiv Gupta, Chika Kamezawa, Avilash Cramer, Wolfgang Krull, Wataru Yashiro, Kazuyuki Hyodo
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Publication number: 20230100714Abstract: A method of assessing a risk level of an enterprise using cloud-based services from one or more cloud service providers includes assessing provider risk scores associated with the one or more cloud service providers; assessing cloud service usage behavior and pattern of the enterprise; and generating a risk score for the enterprise based on the provider risk scores and on the cloud service usage behavior and pattern of the enterprise. The risk score is indicative of the risk of the enterprise relating to the use of the cloud-based services from the one or more cloud service providers.Type: ApplicationFiled: December 5, 2022Publication date: March 30, 2023Inventors: Dejan Curcic, Rajiv Gupta, Kaushik Narayan, Prasad Raghavendra Somasamudram, Sekhar Sarukkai
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Patent number: 11521147Abstract: A method of assessing a risk level of an enterprise using cloud-based services from one or more cloud service providers includes assessing provider risk scores associated with the one or more cloud service providers; assessing cloud service usage behavior and pattern of the enterprise; and generating a risk score for the enterprise based on the provider risk scores and on the cloud service usage behavior and pattern of the enterprise. The risk score is indicative of the risk of the enterprise relating to the use of the cloud-based services from the one or more cloud service providers.Type: GrantFiled: July 24, 2020Date of Patent: December 6, 2022Assignee: Skyhigh Security LLCInventors: Dejan Curcic, Rajiv Gupta, Kaushik Narayan, Prasad Raghavendra Somasamudram, Sekhar Sarukkai
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Publication number: 20220286988Abstract: A radio node may calculate one or more performance metrics based on measured satellite signals, which are associated with a global positioning system, or wireless signals that are associated with a cellular-telephone network. Then, the radio node may determine, based on the one or more performance metrics, whether the radio node is a synchronization master in a cluster of radio nodes. When the radio node is the synchronization master, the radio node may provide information intended for a computer specifying that the radio node is the synchronization master and the one or more performance metrics. In response, the radio node may receive a synchronization request associated with another radio node in the cluster. Furthermore, the radio node may provide the synchronization information intended for the other radio node, where the synchronization information specifies time, frequency, and phase synchronization for at least the cluster.Type: ApplicationFiled: May 24, 2022Publication date: September 8, 2022Applicant: ARRIS Enterprises LLC,Inventors: Paul Petrus, Yves Eteve, Rajiv Gupta, Shailender Potharaju
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Patent number: 11437218Abstract: System and method for nanoscale X-ray imaging. The imaging system comprises an electron source configured to generate an electron beam along a first direction; an X-ray source comprising a thin film anode configured to receive the electron beam at an electron beam spot on the thin film anode, and to emit an X-ray beam substantially along the first direction from a portion of the thin film anode proximate the electron beam spot, such that the X-ray beam passes through the sample specimen. The imaging apparatus further comprises an X-ray detector configured to receive the X-ray beam that passes through the sample specimen. Some embodiments are directed to an electron source that is an electron column of a scanning electron microscope (SEM) and is configured to focus the electron beam at the electron beam spot.Type: GrantFiled: September 14, 2020Date of Patent: September 6, 2022Assignee: Massachusetts Institute of TechnologyInventors: Richard C. Lanza, Berthold Klaus Paul Horn, Akintunde I. Akinwande, George Barbastathis, Rajiv Gupta
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Patent number: 11363553Abstract: A radio node may calculate one or more performance metrics based on measured satellite signals, which are associated with a global positioning system, or wireless signals that are associated with a cellular-telephone network. Then, the radio node may determine, based on the one or more performance metrics, whether the radio node is a synchronization master in a cluster of radio nodes. When the radio node is the synchronization master, the radio node may provide information intended for a computer specifying that the radio node is the synchronization master and the one or more performance metrics. In response, the radio node may receive a synchronization request associated with another radio node in the cluster. Furthermore, the radio node may provide the synchronization information intended for the other radio node, where the synchronization information specifies time, frequency, and phase synchronization for at least the cluster.Type: GrantFiled: June 10, 2020Date of Patent: June 14, 2022Assignee: ARRIS Enterprises LLCInventors: Paul Petrus, Yves Eteve, Rajiv Gupta, Shailender Potharaju
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Patent number: 11152130Abstract: System and method for imaging an integrated circuit (IC). The imaging system comprises an x-ray source including a plurality of spatially and temporally addressable electron sources, an x-ray detector arranged such that incident x-rays are oriented normal to an incident surface of the x-ray detector and a three-axis stage arranged between the x-ray source and the x-ray detector, the three-axis stage configured to have mounted thereon an integrated circuit through which x-rays generated by the x-ray source pass during operation of the imaging system. The imaging system further comprises at least one controller configured to move the three-axis stage during operation of the imaging system and selectively activate a subset of the electron sources during movement of the three-axis stage to acquire a set of intensity data by the x-ray detector as the three-axis stage moves along a three-dimensional trajectory.Type: GrantFiled: August 15, 2017Date of Patent: October 19, 2021Assignee: Massachusetts Institute of TechnologyInventors: Akintunde I. Akinwande, Berthold Klaus Paul Horn, Richard C. Lanza, George Barbastathis, Rajiv Gupta, Jonah Jacob
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Patent number: 11145431Abstract: System and method for nanoscale X-ray imaging of biological specimen. The imaging system comprises an X-ray source including a plurality of spatially and temporally addressable electron sources, an X-ray detector arranged such that incident X-rays are oriented normal to an incident surface of the X-ray detector and a stage arranged between the X-ray source and the X-ray detector, the stage configured to have mounted thereon a biological specimen through which X-rays generated by the X-ray source pass during operation of the imaging system. The imaging system further comprises at least one controller configured to move the stage during operation of the imaging system and selectively activate a subset of the electron sources during movement of the stage to acquire a set of intensity data by the X-ray detector as the stage moves along a three-dimensional trajectory.Type: GrantFiled: November 14, 2019Date of Patent: October 12, 2021Assignee: Massachusetts Institute of TechnologyInventors: Richard C. Lanza, Berthold Klaus Paul Horn, Akintunde I. Akinwande, George Barbastathis, Rajiv Gupta
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Publication number: 20210151288Abstract: System and method for nanoscale X-ray imaging. The imaging system comprises an electron source configured to generate an electron beam along a first direction; an X-ray source comprising a thin film anode configured to receive the electron beam at an electron beam spot on the thin film anode, and to emit an X-ray beam substantially along the first direction from a portion of the thin film anode proximate the electron beam spot, such that the X-ray beam passes through the sample specimen. The imaging apparatus further comprises an X-ray detector configured to receive the X-ray beam that passes through the sample specimen. Some embodiments are directed to an electron source that is an electron column of a scanning electron microscope (SEM) and is configured to focus the electron beam at the electron beam spot.Type: ApplicationFiled: September 14, 2020Publication date: May 20, 2021Applicant: Massachusetts Institute of TechnologyInventors: Richard C. Lanza, Berthold Klaus Paul Horn, Akintunde I. Akinwande, George Barbastathis, Rajiv Gupta
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Publication number: 20210152655Abstract: A cloud service account management method identifies unauthorized or unmanaged accounts making administration console access or API access at a cloud computing service and triggers a work flow to place the accounts under management. In one embodiment, the user device is directed to a registration portal to provide access credentials of the unauthorized account. The loud service account management method uses the access credentials to retrieve a list of account users associated with the account. Once the accounts are made managed, the cloud service account management method can monitor the activities of the account, including all of the account users, and can apply compliance or security policies to the managed accounts.Type: ApplicationFiled: January 28, 2021Publication date: May 20, 2021Inventors: Sekhar Sarukkai, Kaushik Narayan, Rajiv Gupta
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Patent number: 10911564Abstract: A cloud service account management method identifies unauthorized or unmanaged accounts making administration console access or API access at a cloud computing service and triggers a work flow to place the accounts under management. In one embodiment, the user device is directed to a registration portal to provide access credentials of the unauthorized account. The loud service account management method uses the access credentials to retrieve a list of account users associated with the account. Once the accounts are made managed, the cloud service account management method can monitor the activities of the account, including all of the account users, and can apply compliance or security policies to the managed accounts.Type: GrantFiled: June 14, 2017Date of Patent: February 2, 2021Assignee: Skyhigh Networks, LLCInventors: Sekhar Sarukkai, Kaushik Narayan, Rajiv Gupta
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Patent number: 10895540Abstract: The present invention relates to a novel, non-rotating tomographic imaging system, including a multi-source x-ray imaging module which includes multiple x-ray sources within a vacuum manifold, each equipped with a non-thermionic cathode which can reduce image scan time (and hence, motion artifacts), or delivered radiation dose, through under-sampled acquisition sequences, and without adding additional sources. The non-thermionic nature of the cathode enables rapid on/off switching of x-rays without concern as to the thermal mass or the thermal time-constant of the cathode. The modules can be flexibly interconnected to each other to allow configuration as part of a distributed ring of sources, or in other x-ray imaging geometries. Modularity provides the present invention an advantage in making it easier to debug and repair a distributed-source imaging system, such as a computed tomographic (CT) system.Type: GrantFiled: May 8, 2019Date of Patent: January 19, 2021Assignee: United States of America as represented by the Administrator of NASAInventors: Rajiv Gupta, Wolfgang Krull, Jake Hecla, Avilash Cramer, Steven Kenyon, Zaven Arzoumanian, Keith Gendreau
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Publication number: 20200356921Abstract: A method of assessing a risk level of an enterprise using cloud-based services from one or more cloud service providers includes assessing provider risk scores associated with the one or more cloud service providers; assessing cloud service usage behavior and pattern of the enterprise; and generating a risk score for the enterprise based on the provider risk scores and on the cloud service usage behavior and pattern of the enterprise. The risk score is indicative of the risk of the enterprise relating to the use of the cloud-based services from the one or more cloud service providers.Type: ApplicationFiled: July 24, 2020Publication date: November 12, 2020Inventors: Dejan Curcic, Rajiv Gupta, Kaushik Narayan, Prasad Raghavendra Somasamudram, Sekhar Sarukkai
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Publication number: 20200305105Abstract: A radio node may calculate one or more performance metrics based on measured satellite signals, which are associated with a global positioning system, or wireless signals that are associated with a cellular-telephone network. Then, the radio node may determine, based on the one or more performance metrics, whether the radio node is a synchronization master in a cluster of radio nodes. When the radio node is the synchronization master, the radio node may provide information intended for a computer specifying that the radio node is the synchronization master and the one or more performance metrics. In response, the radio node may receive a synchronization request associated with another radio node in the cluster. Furthermore, the radio node may provide the synchronization information intended for the other radio node, where the synchronization information specifies time, frequency, and phase synchronization for at least the cluster.Type: ApplicationFiled: June 10, 2020Publication date: September 24, 2020Applicant: ARRIS Enterprises LLCInventors: Paul Petrus, Yves Eteve, Rajiv Gupta, Shailender Potharaju
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Patent number: 10771469Abstract: A cloud service account management method identifies unauthorized or unmanaged accounts making administration console access or API access at a cloud computing service and triggers a work flow to place the accounts under management. In one embodiment, the user device is directed to a registration portal to provide credentials of the unauthorized account. Once the accounts are made managed, the cloud service account management method can monitor the activities of the accounts and can apply compliance or security policies to the managed accounts.Type: GrantFiled: January 30, 2017Date of Patent: September 8, 2020Assignee: Skyhigh Networks, LLCInventors: Sekhar Sarukkai, Kaushik Narayan, Rajiv Gupta
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Patent number: 10755219Abstract: A method of assessing a risk level of an enterprise using cloud-based services from one or more cloud service providers includes assessing provider risk scores associated with the one or more cloud service providers; assessing cloud service usage behavior and pattern of the enterprise; and generating a risk score for the enterprise based on the provider risk scores and on the cloud service usage behavior and pattern of the enterprise. The risk score is indicative of the risk of the enterprise relating to the use of the cloud-based services from the one or more cloud service providers.Type: GrantFiled: March 18, 2019Date of Patent: August 25, 2020Assignee: Skyhigh Networks, LLCInventors: Dejan Curcic, Rajiv Gupta, Kaushik Narayan, Prasad Raghavendra Somasamudram, Sekhar Sarukkai
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Patent number: 10721698Abstract: A radio node may calculate one or more performance metrics based on measured satellite signals, which are associated with a global positioning system, or wireless signals that are associated with a cellular-telephone network. Then, the radio node may determine, based on the one or more performance metrics, whether the radio node is a synchronization master in a cluster of radio nodes. When the radio node is the synchronization master, the radio node may provide information intended for a computer specifying that the radio node is the synchronization master and the one or more performance metrics. In response, the radio node may receive a synchronization request associated with another radio node in the cluster. Furthermore, the radio node may provide the synchronization information intended for the other radio node, where the synchronization information specifies time, frequency, and phase synchronization for at least the cluster.Type: GrantFiled: July 2, 2018Date of Patent: July 21, 2020Assignee: ARRIS Enterprises, LLCInventors: Paul Petrus, Yves Eteve, Rajiv Gupta, Shailender Potharaju
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Publication number: 20200085392Abstract: System and method for nanoscale X-ray imaging of biological specimen. The imaging system comprises an X-ray source including a plurality of spatially and temporally addressable electron sources, an X-ray detector arranged such that incident X-rays are oriented normal to an incident surface of the X-ray detector and a stage arranged between the X-ray source and the X-ray detector, the stage configured to have mounted thereon a biological specimen through which X-rays generated by the X-ray source pass during operation of the imaging system. The imaging system further comprises at least one controller configured to move the stage during operation of the imaging system and selectively activate a subset of the electron sources during movement of the stage to acquire a set of intensity data by the X-ray detector as the stage moves along a three-dimensional trajectory.Type: ApplicationFiled: November 14, 2019Publication date: March 19, 2020Applicant: Massachusetts Institute of TechnologyInventors: Richard C. Lanza, Berthold Klaus Paul Horn, Akintunde I. Akinwande, George Barbastathis, Rajiv Gupta
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Patent number: 10527562Abstract: For each X-ray path through a tissue, numerous trials are conducted. In each trial, X-ray photons are emitted along the path until a Geiger-mode avalanche photodiode “clicks”. A temporal average—i.e., the average amount of time elapsed before a “click” occurs—is calculated. This temporal average is, in turn, used to estimate a causal intensity of X-ray light that passes through the tissue along the path and reaches the diode. Based on the causal intensities for multiple paths, a computer generates computed tomography (CT) images or 2D digital radiographic images. The causal intensities used to create the images are estimated from temporal statistics, and not from conventional measurements of intensity at a pixel. X-ray dosage needed for imaging is dramatically reduced as follows: a “click” of the photodiode triggers negative feedback that causes the system to halt irradiation of the tissue along a path, until the next trial begins.Type: GrantFiled: October 29, 2015Date of Patent: January 7, 2020Assignees: Massachusetts Institute of Technology, The General Hospital CorporationInventors: Achuta Kadambi, Ramesh Raskar, Rajiv Gupta, Adam Pan