Patents by Inventor Sanjay Krishna
Sanjay Krishna 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: 20240277587Abstract: The complete disclosure of all patents, patent applications, and publications, and electronically available material cited herein are incorporated by reference. The foregoing detailed description and examples have been given for clarity of understanding only. No unnecessary limitations are to be understood therefrom. The invention is not limited to the exact details shown and described, for variations obvious to one skilled in the art will be included within the invention defined by the claims.Type: ApplicationFiled: April 15, 2024Publication date: August 22, 2024Inventors: Vijay Krishna, Sanjay Anand, Edward Maytin, Stephen Grobmyer
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Patent number: 11976972Abstract: Disclosed herein are systems and devices for use in determining a level of a trait in an agriculture or food product sample. Further disclosed is a portable spectrometer system coupled with chemometric analysis methods to determine a level of a trait in an agriculture or food product sample, the portable spectrometer system comprising: a spectrometer; a sample stage adjacent the spectrometer; a motor coupled to the sample stage; and a system housing enclosing the motor and the spectrometer; wherein rotation of the motor rotates the sample stage, and wherein the motor is controllable in response to spectroscopy requirements.Type: GrantFiled: May 21, 2020Date of Patent: May 7, 2024Assignee: Ohio State Innovation FoundationInventors: Luis Rodriguez-Saona, Christopher Ball, Xin Rong Sia, Sanjay Krishna, Theodore James Ronningen
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Publication number: 20240035961Abstract: A system and method indicate capability for detecting methane leaks inside buildings. This approach provides the ability to detect methane behind high efficiency coated windows and can extract methane concentration (rather than concentration-path length product CL). Lock-in imaging technologies can facilitate lower laser transmitter power. A field deployable, hand held prototype sensor for use in remote sensing a appropriate standoff distances can support operational testing. Distance infrared imaging of methane is feasible. Fully characterized real time image of a methane cloud offers operational advantages in accuracy and safety as compared to current sensors.Type: ApplicationFiled: July 31, 2023Publication date: February 1, 2024Inventors: Christopher Ball, Theodore Ronningen, Douglas Fink, Brett Ringel, Sanjay Krishna, Earl Fuller, Douglas Mooney
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Patent number: 11714046Abstract: A system and method indicate capability for detecting methane leaks inside buildings. This approach provides the ability to detect methane behind high efficiency coated windows and can extract methane concentration (rather than concentration-path length product CL). Lock-in imaging technologies can facilitate lower laser transmitter power. A field deployable, hand held prototype sensor for use in remote sensing a appropriate standoff distances can support operational testing. Distance infrared imaging of methane is feasible. Fully characterized real time image of a methane cloud offers operational advantages in accuracy and safety as compared to current sensors.Type: GrantFiled: April 6, 2020Date of Patent: August 1, 2023Assignees: Ohio State Innovation Foundation, SK Infrared, LLCInventors: Christopher Ball, Theodore Ronningen, Douglas Fink, Brett Ringel, Sanjay Krishna, Earl Fuller, Douglas Mooney
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Patent number: 11552204Abstract: An apparatus for light detection includes a light, or photon, detector assembly and a dielectric resonator layer coupled to the detector assembly. The dielectric resonator layer is configured to receive transmission of incident light that is directed into the detector assembly by the dielectric resonator layer. The dielectric resonator layer resonates with a range of wavelengths of the incident light.Type: GrantFiled: February 3, 2020Date of Patent: January 10, 2023Assignees: Ohio State Innovation Foundation, THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Sanjay Krishna, Anthony Grbic, Christopher Ball, Theodore Ronningen, Alireza Kazemi, Mohammadamin Ranjbaraskari, Qingyuan Shu
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Patent number: 11521994Abstract: An open circuit voltage photodetector comprises a photovoltaic device including a photovoltaic junction, and a transistor. The photovoltaic device is connected to the gate terminal of the transistor to input an open circuit voltage of the photovoltaic device to the gate terminal. An array of such photodetectors and a readout integrated circuit forms an image sensor. In a photodetection method, an open circuit voltage is generated in a photovoltaic device in response to illumination by incident radiation, and the open circuit voltage is applied to a gate terminal of a transistor to modulate a channel current flowing in a channel of the transistor. A readout electronic circuit may be fabricated with an extra transistor, and a photovoltaic device disposed on the readout electronic circuit and electrically connected to apply an open circuit voltage of the photovoltaic device to a gate of the extra transistor.Type: GrantFiled: December 5, 2018Date of Patent: December 6, 2022Assignee: Ohio State Innovation FoundationInventors: Sanjay Krishna, Earl Fuller, Waleed Khalil, Theodore Ronningen, Alireza Kazemi, Dale Shane Smith, Teressa Specht, Ramy Tantawy
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Patent number: 11508869Abstract: A lateral interband Type II engineered (LITE) detector is provided. LITE detectors use engineered heterostructures to spatially separate electrons and holes into separate layers. The device may have two configurations, a positive intrinsic (PIN) configuration and a BJT (Bipolar junction transistor) configuration. The PIN configuration may have a wide bandgap (WBG) layer that transports the holes above a narrow bandgap (NBG) absorber layer that absorbs the target radiation and transports the electrons. The BJT configuration may have a WBG layer operating as a BJT above an NBG layer. In both configurations, the LITE design uses a Type II staggered offset between the NBG layers and the WBG layers that provides a built-in field for the holes to drift from an absorber region to a transporter region.Type: GrantFiled: August 6, 2020Date of Patent: November 22, 2022Assignee: Ohio State Innovation FoundationInventors: Sanjay Krishna, Sri Harsha Kodati, Theodore Ronningen, Seunghyun Lee
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Publication number: 20220221338Abstract: Disclosed herein are systems and devices for use in determining a level of a trait in an agriculture or food product sample. Further disclosed is a portable spectrometer system coupled with chemometric analysis methods to determine a level of a trait in an agriculture or food product sample, the portable spectrometer system comprising: a spectrometer; a sample stage adjacent the spectrometer; a motor coupled to the sample stage; and a system housing enclosing the motor and the spectrometer; wherein rotation of the motor rotates the sample stage, and wherein the motor is controllable in response to spectroscopy requirements.Type: ApplicationFiled: May 21, 2020Publication date: July 14, 2022Inventors: Luis RODRIGUEZ-SAONA, Christopher BALL, Xin Rong SIA, Sanjay KRISHNA, Theodore James RONNINGEN
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Patent number: 11333707Abstract: Methods for testing an application specific integrated circuit (ASIC). A set of representations is created that overlays power density information and clock gate physical locations of a set of clock gates in a critical sub-chip of the ASIC for test mode power analysis. The set of representations are further grouped in the sub-chip into various groups based on overlapping of the set of representations. Then, a set of test control signals is generated corresponding to each of the set of clock gates during at-speed test mode of operation such that each clock gate with overlapping representations receive different test control signals. Further, patterns are generated using a virtual constraint function to selectively enable the set of test control signals such that the set of test control signals are not activated simultaneously.Type: GrantFiled: December 5, 2019Date of Patent: May 17, 2022Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Khushboo Agarwal, Sanjay Krishna Hulical Vijayaraghavachar, Raashid Moin Shaikh, Srivaths Ravi, Wilson Pradeep, Rajesh Kumar Tiwari
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Publication number: 20210375957Abstract: An open circuit voltage photodetector comprises a photovoltaic device including a photovoltaic junction, and a transistor. The photovoltaic device is connected to the gate terminal of the transistor to input an open circuit voltage of the photovoltaic device to the gate terminal. An array of such photodetectors and a readout integrated circuit forms an image sensor. In a photodetection method, an open circuit voltage is generated in a photovoltaic device in response to illumination by incident radiation, and the open circuit voltage is applied to a gate terminal of a transistor to modulate a channel current flowing in a channel of the transistor. A readout electronic circuit may be fabricated with an extra transistor, and a photovoltaic device disposed on the readout electronic circuit and electrically connected to apply an open circuit voltage of the photovoltaic device to a gate of the extra transistor.Type: ApplicationFiled: December 5, 2018Publication date: December 2, 2021Applicant: OHIO STATE INNOVATION FOUNDATIONInventors: Sanjay Krishna, Earl Fuller, Waleed Khalil, Theodore RONNINGEN, Alireza Kazemi, Dale Shane Smith, Teressa Specht, Ramy Tantawy
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Publication number: 20210043791Abstract: A lateral interband Type II engineered (LITE) detector is provided. LITE detectors use engineered heterostructures to spatially separate electrons and holes into separate layers. The device may have two configurations, a positive intrinsic (PIN) configuration and a BJT (Bipolar junction transistor) configuration. The PIN configuration may have a wide bandgap (WBG) layer that transports the holes above a narrow bandgap (NBG) absorber layer that absorbs the target radiation and transports the electrons. The BJT configuration may have a WBG layer operating as a BJT above an NBG layer. In both configurations, the LITE design uses a Type II staggered offset between the NBG layers and the WBG layers that provides a built-in field for the holes to drift from an absorber region to a transporter region.Type: ApplicationFiled: August 6, 2020Publication date: February 11, 2021Inventors: Sanjay Krishna, Sri Harsha Kodati, Theodore Ronningen, Seunghyun Lee
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Publication number: 20200319096Abstract: A system and method indicate capability for detecting methane leaks inside buildings. This approach provides the ability to detect methane behind high efficiency coated windows and can extract methane concentration (rather than CL). Lock-in imaging technologies can facilitate lower laser transmitter power. A field deployable, hand held prototype sensor for use in remote sensing a appropriate standoff distances can support operational testing. Distance infrared imaging of methane is feasible.Type: ApplicationFiled: April 6, 2020Publication date: October 8, 2020Inventors: Christopher Ball, Theodore Ronningen, Douglas Fink, Brett Ringel, Sanjay Krishna, Earl Fuller, Douglas Mooney
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Publication number: 20200321481Abstract: An apparatus for light detection includes a light, or photon, detector assembly and a dielectric resonator layer coupled to the detector assembly. The dielectric resonator layer is configured to receive transmission of incident light that is directed into the detector assembly by the dielectric resonator layer. The dielectric resonator layer resonates with a range of wavelengths of the incident light.Type: ApplicationFiled: February 3, 2020Publication date: October 8, 2020Inventors: Sanjay Krishna, Anthony Grbic, Christopher Ball, Theodore Ronningen, Alireza Kazemi, Amin Ranjbar, Qingyuan Shu
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Patent number: 10798242Abstract: Devices, computer-readable media and methods for delivering customer service content associated with a reason code are disclosed. Examples of the present disclosure may include a processor of a telecommunication network identifying a reason code associated with calls from customers to a customer call center and determining a set of shared traits among the customers. The shared traits may be based upon first network event data and first customer account data associated with the customers. The processor may further determine a customer with a propensity to call score that exceeds a threshold and with a customer profile that matches the set of shared traits. The customer profile may be based upon second network event data and second customer account data associated with the customer. The processor may further deliver a customer service content associated with the reason code to the customer via a communication modality that is determined for the customer.Type: GrantFiled: September 9, 2019Date of Patent: October 6, 2020Assignee: AT&T Intellectual Property I, L.P.Inventors: David Dunmire, Sanjay Krishna, Don Green, John Roberts, Anna Aspley
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Patent number: 10699703Abstract: Aspects of the subject disclosure may include an artificial intelligence method of routing customer service interactions which begins with an analysis of a body of historical interactions with customers. By monitoring an interaction between a user and an agent, the user's issue may be determined and a potential resolution resource may be identified. By monitoring an exchange between the user and the resource, the analysis may be updated. Other embodiments are disclosed.Type: GrantFiled: March 19, 2018Date of Patent: June 30, 2020Assignee: AT&T Intellectual Property I, L.P.Inventors: Don Green, Mazin E. Gilbert, David Kapilow, Kelley Mantione, Sanjay Krishna, Wen-Ling Hsu, Cheryl Brooks, Christopher Rath, Tan Xu
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Publication number: 20200132763Abstract: Methods for testing an application specific integrated circuit (ASIC). A set of representations is created that overlays power density information and clock gate physical locations of a set of clock gates in a critical sub-chip of the ASIC for test mode power analysis. The set of representations are further grouped in the sub-chip into various groups based on overlapping of the set of representations. Then, a set of test control signals is generated corresponding to each of the set of clock gates during at-speed test mode of operation such that each clock gate with overlapping representations receive different test control signals. Further, patterns are generated using a virtual constraint function to selectively enable the set of test control signals such that the set of test control signals are not activated simultaneously.Type: ApplicationFiled: December 5, 2019Publication date: April 30, 2020Applicant: Texas Instruments IncorporatedInventors: Khushboo Agarwal, Sanjay Krishna Hulical Vijayaraghavachar, Raashid Moin Shaikh, Srivaths Ravi, Wilson Pradeep, Rajesh Kumar Tiwari
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Publication number: 20190394332Abstract: Devices, computer-readable media and methods for delivering customer service content associated with a reason code are disclosed. Examples of the present disclosure may include a processor of a telecommunication network identifying a reason code associated with calls from customers to a customer call center and determining a set of shared traits among the customers. The shared traits may be based upon first network event data and first customer account data associated with the customers. The processor may further determine a customer with a propensity to call score that exceeds a threshold and with a customer profile that matches the set of shared traits. The customer profile may be based upon second network event data and second customer account data associated with the customer. The processor may further deliver a customer service content associated with the reason code to the customer via a communication modality that is determined for the customer.Type: ApplicationFiled: September 9, 2019Publication date: December 26, 2019Inventors: David Dunmire, Sanjay Krishna, Don Green, John Roberts, Anna Aspley
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Publication number: 20190287517Abstract: Aspects of the subject disclosure may include an artificial intelligence method of routing customer service interactions which begins with an analysis of a body of historical interactions with customers. By monitoring an interaction between a user and an agent, the user's issue may be determined and a potential resolution resource may be identified. By monitoring an exchange between the user and the resource, the analysis may be updated. Other embodiments are disclosed.Type: ApplicationFiled: March 19, 2018Publication date: September 19, 2019Applicant: AT&T Intellectual Property I, L.P.Inventors: Don Green, Mazin E. Gilbert, David Kapilow, Kelley Mantione, Sanjay Krishna, Wen-Ling Hsu, Cheryl Brooks, Christopher Rath, Tan Xu
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Patent number: 10412218Abstract: Devices, computer-readable media and methods for delivering customer service content associated with a reason code are disclosed. Examples of the present disclosure may include a processor of a telecommunication network identifying a reason code associated with calls from customers to a customer call center and determining a set of shared traits among the customers. The shared traits may be based upon first network event data and first customer account data associated with the customers. The processor may further determine a customer with a propensity to call score that exceeds a threshold and with a customer profile that matches the set of shared traits. The customer profile may be based upon second network event data and second customer account data associated with the customer. The processor may further deliver a customer service content associated with the reason code to the customer via a communication modality that is determined for the customer.Type: GrantFiled: June 11, 2018Date of Patent: September 10, 2019Assignee: AT&T Intellectual Property I, L.P.Inventors: David Dunmire, Sanjay Krishna, Don Green, John Roberts, Anna Aspley
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Patent number: 10411436Abstract: A tunable laser device includes a laser structure and a plurality of individually addressable, separated contact stripes disposed on the laser structure. The laser structure includes a substrate, an active portion disposed on the substrate, and a chirped distributed feedback (DFB) grating disposed on the active portion. The active portion includes at least top and bottom contact layers and a gain medium.Type: GrantFiled: May 6, 2016Date of Patent: September 10, 2019Inventors: Steven R. J. Brueck, Sanjay Krishna, Daniel P. Dapkus