Patents by Inventor Abhijit Bhattacharya

Abhijit Bhattacharya 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).

  • Patent number: 12265891
    Abstract: This application relates to apparatus and methods for training machine learning models using supervised, or semi-supervised, learning. In some examples, a computing device obtains training data that includes labelled, and unlabeled, data for training a machine learning model. The computing device applies the machine learning model to the training data to generate output data. The machine learning model executes with a plurality of coefficients applied to a plurality of hyperparameters. The computing device further applies a loss model to the training data and the output data to generate a loss value. Based on the loss values, the computing device determines updated values for the plurality of coefficients of the machine learning model. The computing device may continue to determine updated values for the plurality of coefficients until one or more conditions are satisfied. The computing device may then store the final coefficient values in a data repository.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: April 1, 2025
    Assignee: Walmart Apollo, LLC
    Inventors: Sakib Abdul Mondal, Tuhin Bhattacharya, Abhijit Mondal
  • Patent number: 12257437
    Abstract: Aspects of this disclosure describe methods and systems for phrenic nerve stimulation using a stimulation lead placed in a blood vessel. The stimulation lead includes at least one deformable segment that has at least two configurations. For example, the deformable segment may have an elongate configuration and a non-elongate configuration. In the elongate configuration, the deformable segment may be substantially straight, thereby allowing placement of the stimulation lead using a catheter. In the non-elongate configuration, the deformable segment may be a circle or spiral. The deformable segment may transition from the elongate configuration to the non-elongate configuration after the stimulation lead is positioned in the vein. The stimulation lead may be fixated to the vein at a fixation element. Additionally, the stimulation lead may include electrodes distributed along the deformable segment and at least one elongate segment.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: March 25, 2025
    Assignee: Covidien LP
    Inventors: Victor Duijsens, Abhijit Bhattacharya, Lilian Kornet
  • Publication number: 20250056265
    Abstract: This disclosure provides methods, components, devices and systems for interference reduction between wireless communication devices of overlapping basic service sets (OBSSs). Some aspects more specifically relate to signaling mechanisms associated with an OBSS channel sounding operation and power control mechanisms associated with OBSS interference mitigation, either or both of which a first access point (AP) associated with a first basic service set (BSS) may leverage as part of a coordinated beamforming scheme with a second AP associated with a second BSS. In accordance with OBSS channel sounding, the first AP may associate a set of sounding packets with one or more parameters indicative of the second BSS such that the sounding packets appear, to OBSS stations (STAs), as in-BSS sounding packets. Additionally, or alternatively, the first AP may employ a power control mechanism according to which the first AP may apply portion-by-portion transmission power control.
    Type: Application
    Filed: August 9, 2023
    Publication date: February 13, 2025
    Inventors: Amol SAXENA, Devangam Kotha KIRANKUMAR, Raj Kumar KRISHNA KUMAR, Manikandan CHANDRASEKAR, Abhijit BHATTACHARYA, Srinivas PILLAPPAKKAM, Rohit KAPOOR
  • Publication number: 20240406999
    Abstract: This disclosure provides methods, components, devices and systems for intra-band enhanced multilink single-radio (eMLSR) communication. Some aspects more specifically relate to independently contending, using a single radio, for access on first and second links associated with first and second primary subchannels of a channel. A packet may then be transmitted, using the single radio, over a one of the first link or the second link on which contention is won.
    Type: Application
    Filed: June 2, 2023
    Publication date: December 5, 2024
    Inventors: Abhijit Bhattacharya, Arul Durai Murugan Palanivelu, Suresh Chandrasekaran, Vinod Belur Ramachandra
  • Patent number: 12155121
    Abstract: An antenna apparatus includes a substrate, antenna elements on the substrate, and surface wave filtering structures on the substrate. Each surface wave filtering structure is operable to decouple surface wave coupling between adjacent antenna elements of the antenna elements.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: November 26, 2024
    Assignee: SWIFTLINK TECHNOLOGIES INC.
    Inventors: Min-Yu Huang, Abhijit Bhattacharya
  • Publication number: 20240270465
    Abstract: The present invention relates generally to the field of multi-layer flexible packaging material. In particularly, the present invention relates to a multi-layer flexible packaging material to package dry food, preferably confectionery. The packaging material of the present invention is marine degradable, recyclable and has acceptable barrier properties.
    Type: Application
    Filed: June 10, 2022
    Publication date: August 15, 2024
    Inventors: GERHARD NIEDERREITER, NICOLA GALAFFU, MARIE-AMELIE FRANCOISE SUZANNE GLERON, COLIN GARDNER NEILL, ALEXEY VISHTAL, ABHIJIT BHATTACHARYA
  • Publication number: 20240260094
    Abstract: This disclosure provides methods, devices and systems for clear channel assessment (CCA) for wireless communications in wireless local area networks (WLANs). In some aspects, an access point (AP) may detect an interfering transmission associated with an overlapping basic service set (OBSS). The AP may further transmit, to at least one station (STA), a probe frame soliciting information indicating an interference environment observed by the at least one STA when an interfering transmission fails to satisfy an interference criterion associated with the AP. The AP may further transmit the probe frame to the at least one STA after a backoff period when the interfering transmission satisfies the interference criterion associated with the AP.
    Type: Application
    Filed: January 31, 2023
    Publication date: August 1, 2024
    Inventors: Abhijit BHATTACHARYA, Sudheer Manjunath POOJARY, Akshay Kumar BAJPAI, Manikandan CHANDRASEKAR, Raj Kumar KRISHNA KUMAR
  • Patent number: 12036409
    Abstract: A system for stimulating phrenic nerves to provide smooth breathing patterns is provided. More specifically, by identifying contraction threshold voltages for muscles associated with each of the left and right portions of a patient's diaphragm, a phrenic nerve pacing signal customized for each phrenic nerve may be provided to a patient. More specifically, a voltage of a pacing voltage provided to a first phrenic nerve may be less than the contraction threshold while a voltage of a pacing voltage provided to a second phrenic nerve may be greater than the contraction threshold.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: July 16, 2024
    Assignee: Covidien LP
    Inventors: Abhijit Bhattacharya, Berthold Stegemann
  • Publication number: 20240227361
    Abstract: The present invention concerns a barrier multilayer packaging material structure (1) being formed as a flexible or semi-rigid unitary sheet and comprising a metallized paper (2) which is further coated on the inner side of said material structure (1), with a polymeric binder (5) selected from the list of: pure ethylene-acrylic acid, pure methacrylic acid copolymer, pure polyester, pure polyvinyl acetate, pure polyurethane, and being further coated on its innermost side with a water resistant oxygen-barrier layer (6) of pure polyvinylidene chloride (PVDC).
    Type: Application
    Filed: May 9, 2022
    Publication date: July 11, 2024
    Inventors: ALEXEY VISHTAL, ABHIJIT BHATTACHARYA, LISE ZEBOUDJ
  • Publication number: 20240023873
    Abstract: Aspects of this disclosure describe methods and systems for evaluating phrenic nerve integrity of a patient and a ramp-up pulse string for nerve stimulation. Integrity of a nerve may be assessed and therapy may be slowly introduced to the patient. To determine integrity, a nerve is electrically stimulated and a return signal is evaluated. For example, a time lapse and a band width of the return signal may provide information about nerve damage and a location of the nerve damage. In addition to assessing nerve integrity of a patient, a stimulation burst (e.g., an electrical stimulation) may be delivered as a ramped-up pulse string (e.g., a series of pulses with increasing voltages) to achieve smooth breathing. The voltages of a stimulation burst may be increased based on a target tidal volume for the patient. The stimulation burst may be delivered during an inhalation phase of a breath.
    Type: Application
    Filed: July 6, 2023
    Publication date: January 25, 2024
    Applicant: Covidien LP
    Inventors: Lilian KORNET, Abhijit BHATTACHARYA
  • Publication number: 20230405325
    Abstract: A system comprises a device that includes a signal generator and at least one processor configured to monitor a value of a medical parameter of the patient that is associated with type 2 diabetes, a condition of metabolic syndrome, pancreatis, or any combination thereof. The at least one processor is configured to determine one or more stimulation parameters for stimulating at least one spinal nerve of the patient with an electrical signal, and control the signal generator to generate the electrical signal based on the one or more stimulation parameters. The electrical signal is introduced to the at least one spinal nerve by one or more electrodes, which causes a response by at least one anatomical element of the patient that changes the value of the medical parameter for the patient.
    Type: Application
    Filed: August 30, 2023
    Publication date: December 21, 2023
    Inventors: Lilian Kornet, Suryakiran Vadrevu, Abhijit Bhattacharya, Maneesh Shrivastav, ShaileshKumar V. Musley, Michael D. Eggen
  • Patent number: 11837793
    Abstract: An antenna includes a first radiating arm comprising a first radiating element having a first outer edge, and a second radiating arm that is arranged orthogonally on the first radiating arm and separated from the first radiating arm in a first direction, the second radiating arm comprising a second radiating element having a second outer edge. The first outer edge of the first radiating element extends substantially parallel to the second outer edge of the second radiating element.
    Type: Grant
    Filed: February 4, 2022
    Date of Patent: December 5, 2023
    Assignee: SWIFTLINK TECHNOLOGIES INC.
    Inventors: Abhijit Bhattacharya, Min-Yu Huang
  • Publication number: 20230388936
    Abstract: Methods, systems, and devices for wireless communications are described. In some aspects, a device may support multi-link operation (MLO) and may include a first arbitration block that manages communication on a first radio link and a second arbitration block that manages communication on a second radio link. The first arbitration block and the second arbitration block may support a signaling mechanism according to which each of the first arbitration block and the second arbitration block share or exchange information relating to a transmit power used on their respective radio link. For example, the first arbitration block may transmit, to the second arbitration block, an indication of a first transmit power for a first transmission on the first radio link and the second arbitration block may use the indication of the first transmit power to select a second transmit power for a second transmission on the second radio link.
    Type: Application
    Filed: May 24, 2022
    Publication date: November 30, 2023
    Inventors: Abhijit Bhattacharya, Arul Durai Murugan Palanivelu, Phanimithra Gangalakurti, Thomas Mathew
  • Publication number: 20230370978
    Abstract: This disclosure provides systems, methods and apparatuses for selectively using spatial reuse (SR) transmissions in the presence of an overlapping basic service set (OBSS) transmission. In some implementations, a wireless communication device may transmit data to another wireless communication device using SR packets in the presence of an OBSS transmission or interference only when the signal strength of SR packets received at the other wireless communication device is greater than an amount of signal degradation of the OBSS transmission caused by the SR transmission.
    Type: Application
    Filed: October 27, 2021
    Publication date: November 16, 2023
    Inventors: Abhijit BHATTACHARYA, Vinod BELUR RAMACHANDRA, Arul Durai Murugan PALANIVELU, Raj Kumar KRISHNA KUMAR
  • Publication number: 20230272584
    Abstract: The present invention relates generally to the field of multi-layer packaging material. In particular, the present invention relates to a multi-layer metallized paper-based packaging material comprising a paper layer, a pre metallization coating layer, a metallized layer, and at least one post metallization coating layer. The present invention further relates to the use of the multi-layer metallized paper-based packaging material in accordance with the present invention to package food and to a food package manufactured from the multi-layer metallized paper-based packaging material. In one embodiment of the present invention the multi-layer metallized paper-based packaging material can be recycled with other paper packaging materials.
    Type: Application
    Filed: July 16, 2021
    Publication date: August 31, 2023
    Inventors: ALEXEY VISHTAL, ABHIJIT BHATTACHARYA
  • Publication number: 20230253703
    Abstract: An antenna apparatus includes a substrate, antenna elements on the substrate, and surface wave filtering structures on the substrate. Each surface wave filtering structure is operable to decouple surface wave coupling between adjacent antenna elements of the antenna elements.
    Type: Application
    Filed: February 7, 2022
    Publication date: August 10, 2023
    Inventors: Min-Yu Huang, Abhijit Bhattacharya
  • Publication number: 20230253719
    Abstract: An antenna includes a first radiating arm comprising a first radiating element having a first outer edge, and a second radiating arm that is arranged orthogonally on the first radiating arm and separated from the first radiating arm in a first direction, the second radiating arm comprising a second radiating element having a second outer edge. The first outer edge of the first radiating element extends substantially parallel to the second outer edge of the second radiating element.
    Type: Application
    Filed: February 4, 2022
    Publication date: August 10, 2023
    Inventors: ABHIJIT BHATTACHARYA, MIN-YU HUANG
  • Publication number: 20230253702
    Abstract: According to one embodiment, an RF front end includes an antenna array that is attached to a PCB. A structure is attached to the PCB. The structure has a plurality of concentric rings to enclose an antenna array on the PCB. Each of the plurality of concentric rings has a vertical portion attached to a ground plane of the PCB through a substrate of the PCB, and a planar strip attached to the vertical portion at an end that is opposite of the ground plane.
    Type: Application
    Filed: February 10, 2022
    Publication date: August 10, 2023
    Inventors: Abhijit BHATTACHARYA, Robert HILL, Min-Yu HUANG
  • Publication number: 20230078164
    Abstract: Aspects of this disclosure describe methods and systems for nerve stimulation using a balloon catheter. The balloon catheter includes a catheter, an inflatable balloon with a surface, and a set of electrodes positioned along the surface of the inflatable balloon. The balloon catheter may be positioned in a vessel of a patient, such as the esophagus. The patient may be concurrently undergoing mechanical ventilation. The balloon catheter is secured in the vessel by inflating the inflatable balloon. When the inflatable balloon is inflated, the surface of the inflatable balloon and the set of electrodes is positioned at an internal wall of the vessel. Stimulation is provided to a nerve near the vessel, via the set of electrodes, based on stimulation parameters. Values for the stimulation parameters may be adjusted based on breathing parameters of the patient. The stimulation parameters may also be adjusted to wean a patient off mechanical ventilation.
    Type: Application
    Filed: July 21, 2022
    Publication date: March 16, 2023
    Applicant: Covidien LP
    Inventors: Abhijit BHATTACHARYA, Lilian KORNET, Avram SCHEINER
  • Patent number: 11438103
    Abstract: Certain aspects of the present disclosure provide techniques for sending a retransmission of codewords of a data packet to a receiver node, that were not previously successfully received by the receiver node, in a manner compatible with a receive capability constraint of the receiver node.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: September 6, 2022
    Assignee: QUALCOMM INCORPORATED
    Inventors: Raj Kumar Krishna Kumar, Rohit Kapoor, Yatiraj Paniyoor Tantri, Balaji Nagarajan, Abhijit Bhattacharya, Padmanabhan Venkataraman Karthic, Kundan Kumar Lucky, Venkatesh Bhat, Chiranthan Purushotham, Siju Kurian