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: 20190145926Abstract: A detector or sensor including a transistor having a sensor element that generates a current when exposed to a stimulus such as light or a chemical, in one implementation, the sensor element is positioned between a transistor gate and a transistor channel. When the sensor element is not being exposed to the stimulus, the transistor outputs a first voltage on a transistor drain contact when the transistor inverts. When the sensor element is being exposed to the stimulus, the transistor outputs a second voltage on the transistor drain contact when the transistor inverts, where the second voltage is higher than the first voltage.Type: ApplicationFiled: March 21, 2017Publication date: May 16, 2019Inventors: Sanjay KRISHNA, Payman ZARKESH-HA, David A. RAMIREZ, Brianna KLEIN, Francesca CAVALLO, Seyedeh Marziyeh ZAMIRI, Alireza KAZEMI, Clark KADLEC
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Patent number: 10278649Abstract: A technique for classifying lesions as malignant or benign is disclosed. The technique can include: cooling an area of skin including a lesion of a patient to initiate a warm-up process; receiving a temporal sequence of thermal images of the area of skin representing a thermal recovery of the area of skin, the temporal sequence of thermal images generated by an infrared camera; generating a temporal profile of the thermal recovery based on the temporal sequence of thermal images; analyzing temporal statistical properties of the temporal profile; determining a malignancy probability that the lesion is malignant based on an analysis of the temporal profile, wherein the determining includes extracting one or more statistical features based on continuous-time stochastic signals in the sequence of thermal images; and classifying the lesion based on the malignancy probability.Type: GrantFiled: November 24, 2015Date of Patent: May 7, 2019Assignee: STC.UNMInventors: Majeed M. Hayat, Sanjay Krishna, Sebastian Eugenio Godoy, David A. Ramirez
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Patent number: 10283667Abstract: The present disclosure relates to an electromagnetic energy detector. The detector can include a substrate having a first refractive index; a metal layer; an absorber layer having a second refractive index and disposed between the substrate and the metal layer; a coupling structure to convert incident radiation to a surface plasma wave; additional conducting layers to provide for electrical contact to the electromagnetic energy detector, each conducting layer characterized by a conductivity and a refractive index; and a surface plasma wave (“SPW”) mode-confining layer having a third refractive index that is higher than the second refractive index disposed between the substrate and the metal layer.Type: GrantFiled: September 6, 2016Date of Patent: May 7, 2019Assignee: STC.UNMInventors: Steven R. J. Brueck, Sanjay Krishna, Seung-Chang Lee
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Publication number: 20180366904Abstract: 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: ApplicationFiled: May 6, 2016Publication date: December 20, 2018Inventors: Steven R.J. Brueck, Sanjay Krishna, Daniel P. Dapkus
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Publication number: 20180333105Abstract: A technique for classifying lesions as malignant or benign is disclosed. The technique can include: cooling an area of skin including a lesion of a patient to initiate a warm-up process; receiving a temporal sequence of thermal images of the area of skin representing a thermal recovery of the area of skin, the temporal sequence of thermal images generated by an infrared camera; generating a temporal profile of the thermal recovery based on the temporal sequence of thermal images; analyzing temporal statistical properties of the temporal profile; determining a malignancy probability that the lesion is malignant based on an analysis of the temporal profile, wherein the determining includes extracting one or more statistical features based on continuous-time stochastic signals in the sequence of thermal images; and classifying the lesion based on the malignancy probability.Type: ApplicationFiled: November 24, 2015Publication date: November 22, 2018Inventors: Majeed M. Hayat, Sanjay Krishna, Sebastian Eugenio Godoy, David A. Ramirez
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Publication number: 20180337082Abstract: A method for forming a semiconductor structure, includes: providing a host substrate; forming at least one sacrificial layer having two or more group-V species over the host substrate; forming at least one semiconductor layer over the at least one sacrificial layer; and transferring at least a portion of the at least one semiconductor layer from the host substrate onto an alternate substrate.Type: ApplicationFiled: August 30, 2016Publication date: November 22, 2018Inventors: Sanjay KRISHNA, Brianna KLEIN, Francesca CAVALLO, Seyedeh Marziyeh ZAMIRI
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Publication number: 20180295237Abstract: 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: June 11, 2018Publication date: October 11, 2018Inventors: David Dunmire, Sanjay Krishna, Don Green, John Roberts, Anna Aspley
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Publication number: 20180167504Abstract: 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: December 12, 2016Publication date: June 14, 2018Inventors: David Dunmire, Sanjay Krishna, Don Green, John Roberts, Anna Aspley
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Patent number: 9998596Abstract: 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: December 12, 2016Date of Patent: June 12, 2018Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: David Dunmire, Sanjay Krishna, Don Green, John Roberts, Anna Aspley
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Patent number: 9691147Abstract: Apparatus and methods comprise examination of a subject using images of the subject. The images can provide a non-invasive analysis technique and can include a plurality of images of a portion of the subject at different times a temperature stimulus applied to the subject. An image of the portion of the subject can be aligned such that each pixel of the image corresponds to the same point on the subject over a sequence of images of the portion. The sequence of images can be processed after aligning the images such that data is extracted from the images. The extracted data can be used to make decisions regarding the health status of the subject. Additional apparatus, systems, and methods are disclosed.Type: GrantFiled: September 23, 2016Date of Patent: June 27, 2017Assignees: STC.UNM, SKINfrared LLCInventors: Sanjay Krishna, Sanchita Krishna, Majeed M. Hayat, Pradeep Sen, Maziar Yaesoubi, Sebastian Eugenio Godoy, Ajit Vijay Barve
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Publication number: 20170011513Abstract: Apparatus and methods comprise examination of a subject using images of the subject. The images can provide a non-invasive analysis technique and can include a plurality of images of a portion of the subject at different times a temperature stimulus applied to the subject. An image of the portion of the subject can be aligned such that each pixel of the image corresponds to the same point on the subject over a sequence of images of the portion. The sequence of images can be processed after aligning the images such that data is extracted from the images. The extracted data can be used to make decisions regarding the health status of the subject. Additional apparatus, systems, and methods are disclosed.Type: ApplicationFiled: September 23, 2016Publication date: January 12, 2017Inventors: Sanjay Krishna, Sanchita Krishna, Majeed M. Hayat, Pradeep Sen, Maziar Yaesoubi, Sebastian Eugenio Godoy, Ajit Vijay Barve
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Patent number: 9521346Abstract: Provided is a readout integrated circuit (ROIC). The ROIC includes a memory for each of a plurality of pixels, an address selector to synchronize a subsequent bias voltage for each of the pixels, a reference voltage recover switch to subtract the initial bias voltage from an output voltage of the integrated circuit and to result an integrator voltage for a sample and hold block, and a pulse-width control circuit to prevent crosstalk of the subsequent bias voltage between first and second ones of the pixels while a pixel clock selects adjacent columns. The memory maintains an initial bias voltage for each pixel during an initial integration frame time and during a sample and hold readout processing time. The sample and hold readout processing time is utilized to write a subsequent bias voltage for each pixel for a subsequent integration frame time to allow the first one of the pixels to have a different bias voltage than the second one of the pixels inside each integration frame time.Type: GrantFiled: February 18, 2015Date of Patent: December 13, 2016Assignee: STC.UNMInventors: Glauco Rogerio Cugler-Fiorante, Payman Zarkesh-Ha, Sanjay Krishna
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Patent number: 9471974Abstract: Apparatus and methods comprise examination of a subject using images of the subject. The images can provide a non-invasive analysis technique and can include a plurality of images of a portion of the subject at different times a temperature stimulus applied to the subject. An image of the portion of the subject can be aligned such that each pixel of the image corresponds to the same point on the subject over a sequence of images of the portion. The sequence of images can be processed after aligning the images such that data is extracted from the images. The extracted data can be used to make decisions regarding the health status of the subject. Additional apparatus, systems, and methods are disclosed.Type: GrantFiled: March 14, 2013Date of Patent: October 18, 2016Assignees: STC.UNM, SKINfrared LLCInventors: Sanjay Krishna, Sanchita Krishna, Majeed M. Hayat, Pradeep Sen, Maziar Yaesoubi, Sebastian Eugenio Godoy, Ajit Vijay Barve
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Patent number: 9466739Abstract: The present disclosure relates to an electromagnetic energy detector. The detector can include a substrate having a first refractive index; a metal layer; an absorber layer having a second refractive index and disposed between the substrate and the metal layer; a coupling structure to convert incident radiation to a surface plasma wave; additional conducting layers to provide for electrical contact to the electromagnetic energy detector, each conducting layer characterized by a conductivity and a refractive index; and a surface plasma wave (“SPW”) mode-confining layer having a third refractive index that is higher than the second refractive index disposed between the substrate and the metal layer.Type: GrantFiled: March 14, 2014Date of Patent: October 11, 2016Assignee: STC.UNMInventors: Steven R. J. Brueck, Sanjay Krishna, Seung-Chang Lee
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Publication number: 20160254867Abstract: Apparatus, systems, and methods relate to use of a time-varying bias for application to an avalanche photodiode. Embodiments include systems and methods of determining an appropriate time-varying bias for application to an avalanche photodiode in linear mode. Avalanche photodiode having appropriate parameters may also be determined. Additional apparatus, systems, and methods are disclosed.Type: ApplicationFiled: May 6, 2016Publication date: September 1, 2016Inventors: Majeed M. Hayat, John P. David, Sanjay Krishna, Luke F. Lester, David A. Ramirez, Payman Zarkesh-Ha
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Patent number: 9430842Abstract: Apparatus, systems, and methods fusing material classification with spatio-spectral edge detection in spectral imagery can be used in a variety of applications. In various embodiments, a classifier can be applied to neighboring pixels in data for an image to determine, based on material changes, if the neighboring pixels are correlated to two different materials with respect to a candidate location for an edge. Results of the classification can be used with a spatio-spectral mask to accept or reject the candidate location as an edge. Additional apparatus, systems, and methods are disclosed.Type: GrantFiled: July 17, 2014Date of Patent: August 30, 2016Assignee: STC.UNMInventors: Majeed M. Hayat, Sanjay Krishna, Sebastian Eugenio Godoy
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Patent number: 9354113Abstract: Apparatus, systems, and methods relate to use of a time-varying bias for application to an avalanche photodiode. Embodiments include systems and methods of determining an appropriate time-varying bias for application to an avalanche photodiode in linear mode. Avalanche photodiode having appropriate parameters may also be determined. Additional apparatus, systems, and methods are disclosed.Type: GrantFiled: November 4, 2011Date of Patent: May 31, 2016Assignees: STC.UNM, The University of SheffieldInventors: Majeed M. Hayat, John P. David, Sanjay Krishna, Luke F. Lester, David A. Ramirez, Payman Zarkesh-Ha
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Patent number: 9318517Abstract: Apparatus, systems, and methods related to focal plane arrays can be used in a variety of applications. In various embodiments, focal plane arrays can be fabricated on a wafer integration level based on arrangement of a flexible conductive layer for photosensitive pixels of the focal plane arrays. Arrangement of a flexible conductive layer allows for a number of architectures of focal plane arrays. Additional apparatus, systems, and methods are disclosed.Type: GrantFiled: May 29, 2014Date of Patent: April 19, 2016Assignee: STC.UNMInventors: John A Montoya, Sanjay Krishna, Stephen Myers
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Publication number: 20150212152Abstract: 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: January 26, 2015Publication date: July 30, 2015Applicant: TEXAS INSTRUMENTS INCORPORATEDInventors: Khushboo Agarwal, Sanjay Krishna H V, Raashid Moin Shaikh, Srivaths Ravi, Wilson Pradeep, Rajesh Kumar Tiwari
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Publication number: 20150187068Abstract: Apparatus and methods comprise examination of a subject using images of the subject. The images can provide a non-invasive analysis technique and can include a plurality of images of a portion of the subject at different times a temperature stimulus applied to the subject. An image of the portion of the subject can be aligned such that each pixel of the image corresponds to the same point on the subject over a sequence of images of the portion. The sequence of images can be processed after aligning the images such that data is extracted from the images. The extracted data can be used to make decisions regarding the health status of the subject. Additional apparatus, systems, and methods are disclosed.Type: ApplicationFiled: March 14, 2013Publication date: July 2, 2015Applicants: STC.UNM, SKINfrared LLCInventors: Sanjay KRISHNA, Sanchita KRISHNA, Majeed M. HAYAT, Sen PRADEEP, Maziar YAESOUBI, Sebastian Eugenio GODOY, Ajit Vigay BARVE