Patents by Inventor Anirban Roy

Anirban Roy 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).

  • Publication number: 20230044319
    Abstract: Infusion devices and related medical devices, patient data management systems, and methods are provided for monitoring a physiological condition of a patient. An exemplary infusion device includes an actuation arrangement operable to deliver fluid to a user, a communications interface to receive measurement data indicative of a physiological condition of the user, a sensing arrangement to obtain contextual measurement data, and a control system coupled to the actuation arrangement, the communications interface and the sensing arrangement to determine a command for autonomously operating the actuation arrangement in a manner that is influenced by the measurement data and the contextual measurement data and autonomously operate the actuation arrangement in accordance with the command to deliver the fluid to the user.
    Type: Application
    Filed: May 13, 2022
    Publication date: February 9, 2023
    Inventors: Huzefa F. Neemuchwala, Pratik Agrawal, Benyamin Grosman, Anirban Roy, Patrick E. Weydt, Louis J. Lintereur, Ali Dianaty, Yuxiang Zhong, Chantal M. McMahon
  • Publication number: 20220327020
    Abstract: A magnetoresistive random-access memory (MRAM) device includes an array of MRAM bit cells grouped into words, each word having specified number of data bit cells, error correction code (ECC) bit cells, and at least two inversion indicator bit cells, the inversion indicator bit cells being redundant of each other; and a memory controller. The memory controller is configured to, for each of the words, set the inversion indicator bit cells to indicate whether the number of data bit cells in a word having a zero value is greater than the number of data bit cells having a one value, invert the zeroes and ones in the bit cells when the inversion indicator bit cells are set to indicate a greater number of zeroes than ones in the data bit cells of the word, and revert the data bit cells to their value before the zeroes and ones were inverted.
    Type: Application
    Filed: June 29, 2022
    Publication date: October 13, 2022
    Inventors: Anirban Roy, Nihaar N. Mahatme
  • Publication number: 20220313908
    Abstract: A processor-implemented method for closed-loop control in steady-state conditions includes determining, based on data including historical bolus information but excluding historical basal information, an amount of unmetabolized therapeutic substance in a patient; determining, based on a difference between a most recent measurement of a physiological condition of the patient and a target value for the physiological condition, a first amount or rate of a basal dosage for delivery to the patient; adjusting, based on the amount of unmetabolized therapeutic substance, the first amount or rate of the basal dosage to determine a second amount or rate of the basal dosage; and causing delivery of the second amount or rate of the basal dosage based on communicating the second amount or rate in a delivery command.
    Type: Application
    Filed: April 5, 2021
    Publication date: October 6, 2022
    Inventors: Benyamin Grosman, Louis J. Lintereur, Anirban Roy, Neha J. Parikh, Di Wu, Patrick E. Weydt, David Dunleavy, Ali Dianaty
  • Publication number: 20220310786
    Abstract: A nanosheet semiconductor device and fabrication method are described for integrating the fabrication of nanosheet transistors (71) and capacitors/sensors (72) in a single nanosheet process flow by forming separate transistor and capacitor/sensor stacks (12A-16A, 12B-16B) which are selectively processed to form gate electrode structures (68A-C) which replace remnant SiGe sandwich layers in the transistor stack, to form silicon fixed electrodes using silicon nanosheets (13C, 15C) on a first side of the capacitor/sensor stack, and to form SiGe fixed electrodes using SiGe nanosheets (12C, 14C, 16C) from the middle of remnant SiGe sandwich layers in the capacitor/sensor stack (e.g., 16-2) which are separated from the silicon fixed electrodes by selectively removing top and bottom SiGe nanosheets (e.g., 16-1, 16-3) from the remnant SiGe sandwich layers in the capacitor/sensor stack.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 29, 2022
    Applicant: NXP B.V.
    Inventors: Tushar Praful Merchant, Mark Douglas Hall, Anirban Roy
  • Publication number: 20220310456
    Abstract: A semiconductor device and fabrication method are described for integrating stacked top and bottom nanosheet transistors by providing a nanosheet transistor stack having bottom and top Si/SiGe superlattice structures (11-14, 17-20) which are separated from one another by a barrier oxide layer (15) and which are separately processed to form bottom gate electrodes having a first gate structure (40A-B) in the bottom Si/SiGe superlattice structures and to form top gate electrodes having a second, different gate structure (46A-B) in the top Si/SiGe superlattice structures.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 29, 2022
    Applicant: NXP B.V.
    Inventors: Mark Douglas Hall, Tushar Praful Merchant, Anirban Roy
  • Publication number: 20220301936
    Abstract: A semiconductor device and fabrication method are described for integrating stacked top and bottom nanosheet transistors by providing a nanosheet transistor stack having bottom and top Si/SiGe superlattice structures (11-14, 17-20) which are separated from one another by a barrier oxide layer (15) and which are separately processed to form first remnant silicon germanium nanosheet layers (12, 14) in the bottom Si/SiGe superlattice structures having a first gate length dimension (DG1) and to form second remnant silicon germanium nanosheet layers (18, 20) in the top Si/SiGe superlattice structures having a second, smaller gate length dimension (DG2) so that the nanosheet transistor stack may then be processed to simultaneously form bottom and top gate electrodes which replace, respectively, the first and second remnant silicon germanium nanosheet layers.
    Type: Application
    Filed: March 16, 2021
    Publication date: September 22, 2022
    Applicant: NXP B.V.
    Inventors: Tushar Praful Merchant, Mark Douglas Hall, Anirban Roy
  • Publication number: 20220278226
    Abstract: A semiconductor device and fabrication method are described for integrating a nanosheet transistor with a capacitor or nonvolatile memory cell in a single nanosheet process flow by forming a nanosheet transistor stack (11-18) of alternating Si and SiGe layers which are selectively processed to form epitaxial source/drain regions (25A, 25B) and to form gate electrodes (33A-D) which replace the silicon germanium layers in the nanosheet transistor stack, and then selectively forming one or more insulated conductive electrode layers (e.g., 37/39, 25/55, 64/69) adjacent to the nanosheet transistor to define a capacitor or nonvolatile memory cell that is integrated with the nanosheet transistor.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 1, 2022
    Applicant: NXP B.V.
    Inventors: Mark Douglas Hall, Tushar Praful Merchant, Anirban Roy
  • Publication number: 20220274828
    Abstract: A nanosheet MEMS sensor device and method are described for integrating the fabrication of nanosheet transistors (61) and MEMS sensors (62) in a single nanosheet process flow by forming separate nanosheet transistor and MEMS sensor stacks (12A-16A, 12B-16B) of alternating Si and SiGe layers which are selectively processed to form gate electrodes (49A-C) which replace the silicon germanium layers in the nanosheet transistor stack, to form silicon fixed electrodes using silicon layers (13B-2, 15B-2) on a first side of the MEMS sensor stack, and to form silicon cantilever electrodes using silicon layers (13B-1, 15B-1) on a second side of the MEMS sensor stack by forming a narrow trench opening (54) in the MEMS sensor stack to expose and remove remnant silicon germanium layers on the second side in the MEMS sensor stack.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 1, 2022
    Applicant: NXP B.V.
    Inventors: Mark Douglas Hall, Tushar Praful Merchant, Anirban Roy
  • Publication number: 20220257858
    Abstract: Techniques related to automatically generating a super bolus may include determining an amount of an augmented meal bolus to be delivered to a patient for regulating the patient's glycemic response to a meal. The amount of the augmented meal bolus may exceed a sufficient amount for counteracting a glucose level increase caused by the meal. In some embodiments, the techniques may further include determining a duration of a postprandial reduction period during which basal dosage deliveries to the patient are to be reduced. In some other embodiments, the techniques may further include delivering the augmented meal bolus to the patient prior to determining whether or not to cause reduction of basal dosage deliveries. More specifically, a glucose level of the patient may be obtained after delivery of the augmented meal bolus, and the obtained glucose level may be used to determine whether to reduce basal dosage deliveries.
    Type: Application
    Filed: February 18, 2021
    Publication date: August 18, 2022
    Inventors: Benyamin Grosman, Louis J. Lintereur, Anirban Roy, Neha J. Parikh, Di Wu, Patrick E. Weydt, David Dunleavy, Ali Dianaty
  • Publication number: 20220257859
    Abstract: Techniques related to automatically generating a super bolus may include determining an amount of an augmented meal bolus to be delivered to a patient for regulating the patient's glycemic response to a meal. The amount of the augmented meal bolus may exceed a sufficient amount for counteracting a glucose level increase caused by the meal. In some embodiments, the techniques may further include determining a duration of a postprandial reduction period during which basal dosage deliveries to the patient are to be reduced. In some other embodiments, the techniques may further include delivering the augmented meal bolus to the patient prior to determining whether or not to cause reduction of basal dosage deliveries. More specifically, a glucose level of the patient may be obtained after delivery of the augmented meal bolus, and the obtained glucose level may be used to determine whether to reduce basal dosage deliveries.
    Type: Application
    Filed: February 18, 2021
    Publication date: August 18, 2022
    Inventors: Benyamin Grosman, Louis J. Lintereur, Anirban Roy, Neha J. Parikh, Di Wu, Patrick E. Weydt, David Dunleavy, Ali Dianaty
  • Publication number: 20220249772
    Abstract: A system for controlling fluid delivery includes one or more processors, and one or more processor-readable storage media storing instructions which, when executed by the one or more processors, cause performance of: identifying a residual value indicative of a difference between a first value and a second value, the first value corresponding to a physiological condition of a patient before delivery of a bolus amount of fluid, and the second value corresponding to a physiological condition of the patient after delivery of the bolus amount of the fluid, determining a ratio adjustment factor based on the residual value, and determining, based on the ratio adjustment factor, an updated value for a ratio that influences delivery of bolus amounts of the fluid.
    Type: Application
    Filed: April 28, 2022
    Publication date: August 11, 2022
    Inventor: Anirban Roy
  • Patent number: 11379307
    Abstract: A magnetoresistive random-access memory (MRAM) device includes an array of MRAM bit cells grouped into words, each word having specified number of data bit cells, error correction code (ECC) bit cells, and at least two inversion indicator bit cells, the inversion indicator bit cells being redundant of each other; and a memory controller. The memory controller is configured to, for each of the words, set the inversion indicator bit cells to indicate whether the number of data bit cells in a word having a zero value is greater than the number of data bit cells having a one value, invert the zeroes and ones in the bit cells when the inversion indicator bit cells are set to indicate a greater number of zeroes than ones in the data bit cells of the word, and revert the data bit cells to their value before the zeroes and ones were inverted.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: July 5, 2022
    Assignee: NXP USA, Inc.
    Inventors: Anirban Roy, Nihaar N. Mahatme
  • Publication number: 20220179740
    Abstract: A magnetoresistive random-access memory (MRAM) device includes an array of MRAM bit cells grouped into words, each word having specified number of data bit cells, error correction code (ECC) bit cells, and at least two inversion indicator bit cells, the inversion indicator bit cells being redundant of each other; and a memory controller. The memory controller is configured to, for each of the words, set the inversion indicator bit cells to indicate whether the number of data bit cells in a word having a zero value is greater than the number of data bit cells having a one value, invert the zeroes and ones in the bit cells when the inversion indicator bit cells are set to indicate a greater number of zeroes than ones in the data bit cells of the word, and revert the data bit cells to their value before the zeroes and ones were inverted.
    Type: Application
    Filed: December 9, 2020
    Publication date: June 9, 2022
    Inventors: Anirban Roy, Nihaar N. Mahatme
  • Patent number: 11350886
    Abstract: Infusion devices and related medical devices, patient data management systems, and methods are provided for monitoring a physiological condition of a patient. An exemplary infusion device includes an actuation arrangement operable to deliver fluid to a user, a communications interface to receive measurement data indicative of a physiological condition of the user, a sensing arrangement to obtain contextual measurement data, and a control system coupled to the actuation arrangement, the communications interface and the sensing arrangement to determine a command for autonomously operating the actuation arrangement in a manner that is influenced by the measurement data and the contextual measurement data and autonomously operate the actuation arrangement in accordance with the command to deliver the fluid to the user.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: June 7, 2022
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Huzefa F. Neemuchwala, Pratik Agrawal, Benyamin Grosman, Anirban Roy, Patrick E. Weydt, Louis J. Lintereur, Ali Dianaty, Yuxiang Zhong, Chantal M. McMahon
  • Publication number: 20220168506
    Abstract: A system for monitoring a patient includes one or more processors and a sensor device implemented in circuitry. The system is configured to measure, using the sensor device, a blood glucose status of the patient, and determine, using one or more processors, an initial insulin dose for the patient based on the blood glucose status of the patient. The system is further configured to optimize the initial insulin dose for the patient, based at least in part on a correction factor, to create an optimized insulin dose for the patient. The system is configured to facilitate therapy, using the one or more processors, based on the determined optimized insulin dose.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 2, 2022
    Inventors: Yuxiang Zhong, Anirban Roy, Pratik J. Agrawal, Ali Dianaty, Arthur Mikhno, Shruti Rastogi, Taly G. Engel, Michael P. Stone, Boyi Jiang, Sinu Bessy Abraham, Dae Y. Kang
  • Patent number: 11338086
    Abstract: Infusion systems, infusion devices, and related operating methods are provided. An exemplary method of operating an infusion device to deliver a bolus amount of fluid influencing a physiological condition in a body of a user involves identifying, based on measurement values for the physiological condition, a residual value for the physiological condition resulting from the bolus amount of the fluid and determining an updated ratio for a subsequent bolus by adjusting an initial ratio influencing the bolus amount to compensate for the residual value. The updated ratio may be stored in a data storage element for use in determining a subsequent bolus amount in lieu of the initial ratio value.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: May 24, 2022
    Assignee: Medtronic MiniMed, Inc.
    Inventor: Anirban Roy
  • Patent number: 11334933
    Abstract: A method of monitoring user interactions with a networked device includes receiving image data associated with one or more images of a user, computing a plurality of visual features of the one or more images from the image data, and calculating, by a processing device, a style characteristic from the plurality of visual features. The method include calculating, by the processing device, a lifestyle characteristic based on the style characteristic and calculating, by the processing device, a user preference based on the lifestyle characteristic. The method includes determining a recommendation of a product based on the user preference and providing the recommendation to a user device associated with the user.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: May 17, 2022
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Robert R. Price, Anirban Roy, Hoda Eldadiry
  • Publication number: 20220118182
    Abstract: A system includes one or more processors, and one or more processor-readable storage media storing instructions which, when executed by the one or more processors, cause performance of: switching operation of an infusion device from a first mode of fluid delivery to a second mode of fluid delivery, the first mode being different from the second mode, receiving user input after the infusion device is operating in the second mode, the user input being indicative of whether the infusion device should remain operating in the second mode or transition from the second mode to a different mode, and operating the infusion device in a manner that is influenced by the user input.
    Type: Application
    Filed: December 30, 2021
    Publication date: April 21, 2022
    Inventors: John J. Mastrototaro, Desmond Barry Keenan, Benyamin Grosman, Anirban Roy
  • Publication number: 20220088306
    Abstract: Disclosed are techniques related to determination of adjustments to fluid delivery settings. The techniques may involve accessing an input meal size category, where the input meal size category is selected from among a plurality of meal size categories via a user interface; accessing a plurality of groups of historical meal events for a person, where each group of the plurality of groups is associated with a respective meal size category of the plurality of meal size categories and includes respective historical meal events for the person categorized in the respective meal size category; identifying a group, in the plurality of groups of historical meal events for the person, having ane associated meal size category that matches the input meal size category; identifying a person-specific carbohydrate amount representative of the historical meal events in the identified group; and determining a bolus dosage value of insulin based on the person-specific carbohydrate amount.
    Type: Application
    Filed: December 3, 2021
    Publication date: March 24, 2022
    Inventors: Anirban Roy, Benyamin Grosman, Neha J. Parikh, Di Wu, Louis J. Lintereur
  • Patent number: 11266334
    Abstract: Disclosed are methods, apparatuses, etc. for calibrating glucose monitoring sensors and/or insulin delivery systems. In certain example embodiments, blood glucose reference samples may be correlated with sensor measurements with regard to a delay associated with the sensor measurements. In certain other example embodiments, a blood-glucose concentration in a patient may be determined based, at least in part, on one or more probability models, one or more functions for estimating blood-glucose concentrations, and/or blood glucose reference sample-sensor measurement pairs.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: March 8, 2022
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Anirban Roy, Barry Keenan, Michael Kremliovsky