Patents by Inventor Nghia Nguyen

Nghia Nguyen 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: 20250125722
    Abstract: In one example, a system comprises a plurality of charge pump units connected in parallel to receive an input voltage and to generate an output voltage greater than the input voltage; and a pumping controller to provide a pumping signal to a first charge pump unit of the plurality of charge pump units and to provide sequentially delayed versions of the pumping signal to the other charge pump units of the plurality of charge pump units, the pumping controller comprising a plurality of circuit blocks, each of the plurality of circuit blocks comprising a delay circuit and a latch.
    Type: Application
    Filed: December 19, 2024
    Publication date: April 17, 2025
    Inventors: Thoan Nguyen, Nghia Nguyen, Viet Nguyen, Son Nguyen, Hien Lai, Phuong Nguyen
  • Patent number: 12206325
    Abstract: In one example, a system comprises a plurality of charge pump units connected in parallel to receive an input voltage and to generate an output voltage greater than the input voltage and a pumping controller to provide a pumping signal to a first charge pump unit of the plurality of charge pump units and to provide sequentially delayed versions of the pumping signal to the other charge pump units of the plurality of charge pump units.
    Type: Grant
    Filed: April 17, 2023
    Date of Patent: January 21, 2025
    Assignee: SILICON STORAGE TECHNOLOGY, INC.
    Inventors: Thoan Nguyen, Nghia Nguyen, Viet Nguyen, Son Nguyen, Hien Lai, Phuong Nguyen
  • Patent number: 12186065
    Abstract: A wearable antenna assembly for tomographic brain imaging of a subject, the antenna assembly including: a resilient cap to be worn on the head of a subject whose brain is to be imaged; an array of antennas at least partially embedded in the cap at respective mutually spaced locations such that, when the cap is worn by the subject, the antennas are arranged around the subject's brain; wherein the cap has a multi-layered structure including a layer composed of graphite and aluminium oxide powders dispersed in PDMS to improve the matching of dielectric properties with those of the subject's head.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: January 7, 2025
    Assignee: EMVISION MEDICAL DEVICES LTD
    Inventors: Amin Abbosh, Abdulrahman S. M Alqadami, Nghia Nguyen-Trong, Beadaa Mohammed, Thanh Phong Nguyen
  • Patent number: 12163867
    Abstract: A method for determining an optimal sensor set includes identifying a set of possible faults of a thermal hydraulic system and a set of diagnostic objectives. The method also includes obtaining descriptions of sensor sets, which includes: receiving a first description of a first sensor set, and generating, based on the first description, a second description of a second sensor set. The method further includes, for each sensor set: determining a diagnostic capability of the sensor set, and calculating a score of the particular sensor set based on the particular description and the diagnostic capability, wherein a score of a sensor set is increased by a monetary cost of the sensor set and decreased by the sensor set meeting a diagnostic objective. The method also includes identifying the optimal sensor set that has a lowest score of the sensor sets, and displaying an indication of the optimal sensor set.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: December 10, 2024
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Richard B. Vilim, Tat Nghia Nguyen, Haoyu Wang
  • Publication number: 20240350062
    Abstract: A biomedical connector includes a housing defining an interior space and an opening dimensioned to receive an electrode at least partially into the interior space. A lever is movably attached to the housing and biased toward an engagement position for contacting the electrode when the electrode is received in the opening in the housing to retain the biomedical connector to the electrode. A dampener is disposed in the interior space of the housing and configured to engage the electrode when the electrode is received in the opening in the housing. The dampener is configured to limit movement of the biomedical connector relative to the electrode to reduce motion artifact in a biomedical signal received by the biomedical connector.
    Type: Application
    Filed: April 19, 2024
    Publication date: October 24, 2024
    Inventors: Alexandra Mason, Hannah Sugrue, Nghia Nguyen, Erick Garstka, Jacob Ameiss, Melvin Finke
  • Patent number: 12086872
    Abstract: An apparatus includes a display, interface, and processor. The interface receives video from a camera located in a physical store and directed at a first physical rack. The camera captures video of the rack during a shopping session. The processor displays a first virtual rack that emulates the first physical rack and includes first and second virtual shelves. The virtual shelves include virtual items, which include graphical representations of physical items located on the physical rack. The processor displays the rack video, which depicts an event including the person interacting with the first physical rack. The processor also displays a virtual shopping cart. The processor receives information associated with the event, identifying the first virtual item. The rack video depicts that the person selected the first physical item while interacting with the first physical rack. The processor then stores the first virtual item in the virtual shopping cart.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: September 10, 2024
    Assignee: 7-ELEVEN, INC.
    Inventors: Matthew Raymond Magee, Shahmeer Ali Mirza, Joshua E. Berry, Trong Nghia Nguyen, Ravi Kumar Kurva, Sarath Vakacharla, Ranganathan Mohan, Maninder Singh Suri, Jonathan Christopher Hodge
  • Publication number: 20240266955
    Abstract: In one example, a system comprises a plurality of charge pump units connected in parallel to receive an input voltage and to generate an output voltage greater than the input voltage and a pumping controller to provide a pumping signal to a first charge pump unit of the plurality of charge pump units and to provide sequentially delayed versions of the pumping signal to the other charge pump units of the plurality of charge pump units.
    Type: Application
    Filed: April 17, 2023
    Publication date: August 8, 2024
    Inventors: THOAN NGUYEN, NGHIA NGUYEN, VIET NGUYEN, SON NGUYEN, HIEN LAI, PHUONG NGUYEN
  • Patent number: 12002263
    Abstract: An apparatus includes a processor. The processor receives an algorithmic shopping cart that includes a first set of items determined by an algorithm to have been selected by a person during a shopping session in a physical store, based on a set of inputs received from sensors located within the physical store. The processor also receives a virtual shopping cart that includes a second set of items. Video of the shopping session was captured by a set of cameras located in the physical store and depicts the person selecting the second set of items. The processor compares the algorithmic cart to the virtual cart and determines that a discrepancy exists between the algorithmic cart and the virtual cart. The processor determines a subset of the set of inputs associated with the discrepancy and attaches metadata explaining the discrepancy to the subset. The processor uses the subset to train the algorithm.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: June 4, 2024
    Assignee: 7-ELEVEN, INC.
    Inventors: Shahmeer Ali Mirza, Sailesh Bharathwaaj Krishnamurthy, Trong Nghia Nguyen, Sarath Vakacharla
  • Publication number: 20240171069
    Abstract: Examples of improved charge pumps are disclosed. In one example, a system comprises a first charge path comprising a first stage to boost an input voltage and a second stage to boost a voltage received from the first stage of the first charge path; and a second charge path comprising a first stage to boost an input voltage and a second stage to boost a voltage received from the first stage of the second charge path; wherein an output of the second stage of the first charge path is coupled to the first stage of the second charge path and an output of the second stage of the second charge path is coupled to the first stage of the first charge path.
    Type: Application
    Filed: February 14, 2023
    Publication date: May 23, 2024
    Inventors: Nghia Nguyen, Hien Lai, Thoan Nguyen, Son Nguyen, Viet Nguyen
  • Publication number: 20240087144
    Abstract: A weight sensor includes a plurality of load cells. A first load cell is configured to produce a first electric current based on a force experienced by the first load cell. A second load cell is configured to produce a second electric current based on a force experienced by the second load cell. A third load cell is configured to produce a third electric current based on a force experienced by the third load cell. And a fourth load cell is configured to produce a fourth electric current based on a force experienced by the fourth load cell.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: Sailesh Bharathwaaj Krishnamurthy, Sarath Vakacharla, Trong Nghia Nguyen, Shahmeer Ali Mirza, Madan Mohan Chinnam, Caleb Austin Boulio, Deepanjan Paul, Fahad Mirza
  • Publication number: 20240065194
    Abstract: The disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). In a wireless communication system, a method performed by a first user equipment (UE) may include: obtaining at least one phone number from a plurality of usable sources, classifying, based on a usage state, the at least one phone number into one of a permanent state, a temporary state, or an invalid state, and transmitting a session initiation protocol (SIP) message including information associated with the at least one classified phone number to a second UE.
    Type: Application
    Filed: August 24, 2023
    Publication date: February 29, 2024
    Inventors: Ngoc Duc NGUYEN, The Nghia NGUYEN, Van Khanh NGUYEN, Thi Tam TRUONG
  • Patent number: 11914357
    Abstract: A method for diagnosing faults includes receiving a description of a component of a thermal hydraulic system, where the description also indicates one or more sensors of the component. The method also includes constructing, based on a physical conservation law and using the description, a physics-based model describing operation of the component, the physics-based model including one or more unknown parameters. The method further includes calibrating the physics-based model by calculating the one or more unknown parameters using historical measurements to produce a calibrated model. Further, the method includes receiving sensor measurements captured by the one or more sensors, and calculating residuals corresponding to differences between measurements predicted by the calibrated model and the sensor measurements. The method also includes determining, based on the calculated residuals, a fault of the component or of a sensor of the one or more sensors, and generating an alert indicating the fault.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: February 27, 2024
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Tat Nghia Nguyen, Richard B. Vilim, Roberto Ponciroli
  • Publication number: 20240005389
    Abstract: An apparatus to create a virtual layout of a virtual store to emulate a physical layout of a physical store includes a memory and a processor. The processor receives a physical position and orientation associated with a physical rack located in the physical store. In response, the processor places a virtual rack at a virtual position and orientation on the virtual layout, to represent the physical position and orientation of the physical rack on the physical layout. The processor receives virtual items associated with physical items located on physical shelves of the physical rack. In response, the processor places the virtual items on virtual shelves of the virtual rack, the virtual shelves representing the physical shelves of the physical rack. The processor assigns a rack camera, which captures video that includes the physical rack, to the virtual rack and stores the virtual layout in the memory.
    Type: Application
    Filed: September 13, 2023
    Publication date: January 4, 2024
    Inventors: Matthew Raymond MAGEE, Joshua E. BERRY, Trong Nghia NGUYEN, Ravi Kumar KURVA
  • Patent number: 11823396
    Abstract: A scalable tracking system includes a camera subsystem, a weight subsystem, and a central server. The camera subsystem includes cameras that capture video of a space, camera clients that determine local coordinates of objects in the captured videos, and a camera server that determines the physical positions of objects in the space based on the determined local coordinates. The weight subsystem determines when items were removed from shelves. The central server determines which object in the space removed the items based on the physical positions of the objects in the space and the determination of when items were removed.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: November 21, 2023
    Assignee: 7-ELEVEN, INC.
    Inventors: Sailesh Bharathwaaj Krishnamurthy, Sarath Vakacharla, Trong Nghia Nguyen, Shahmeer Ali Mirza, Madan Mohan Chinnam, Caleb Austin Boulio, Deepanjan Paul, Fahad Mirza
  • Patent number: 11798065
    Abstract: An apparatus to create a virtual layout of a virtual store to emulate a physical layout of a physical store includes a memory and a processor. The processor receives a physical position and orientation associated with a physical rack located in the physical store. In response, the processor places a virtual rack at a virtual position and orientation on the virtual layout, to represent the physical position and orientation of the physical rack on the physical layout. The processor receives virtual items associated with physical items located on physical shelves of the physical rack. In response, the processor places the virtual items on virtual shelves of the virtual rack, the virtual shelves representing the physical shelves of the physical rack. The processor assigns a rack camera, which captures video that includes the physical rack, to the virtual rack and stores the virtual layout in the memory.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: October 24, 2023
    Assignee: 7-ELEVEN, INC.
    Inventors: Matthew Raymond Magee, Joshua E. Berry, Trong Nghia Nguyen, Ravi Kumar Kurva
  • Patent number: 11740157
    Abstract: A method for diagnosing faults includes receiving a system description of a thermal hydraulic system, the system description indicating a plurality of components and sensors. The method also includes constructing, based on physical conservations laws and using the system description, a plurality of physics-based models for the plurality of components, each of the plurality of physics-based models including unknown parameters. The method further includes receiving historical measurements and calibrating the physics-based models by calculating the unknown parameters of each of the physics-based models using the historical measurements to produce calibrated models. The method also includes receiving sensor measurements of the sensors, and calculating residuals corresponding to differences between measurements predicted by the plurality of calibrated models and the sensor measurements.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: August 29, 2023
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Tat Nghia Nguyen, Richard B. Vilim, Roberto Ponciroli
  • Publication number: 20230235407
    Abstract: Provided are systems and methods for detecting the presence of cancer DNA in blood and for identifying the cancer origin in a test subject. Also provided are systems and methods for monitoring likelihood of cancer recurrence in a subject previously treated for cancer, systems and methods for assessing the efficacy of a cancer treatment in a subject suffering from cancer, and systems and methods for treating cancer in a subject in need thereof.
    Type: Application
    Filed: September 8, 2022
    Publication date: July 27, 2023
    Inventors: Hoai Nghia NGUYEN, Hoa Giang, Minh Duy Phan, Le Son Tran
  • Patent number: 11659139
    Abstract: A system includes sensors and a tracking subsystem. The subsystem receives frames of top-view images generated by the sensors. The subsystem tracks a first and second object, based on received frames. The subsystem detects that the first object is within a threshold distance of the second object. In response, the subsystem determines a probability that the first object switched identifiers with the second object and updates candidate lists accordingly for the first and second objects. The updated first candidate list includes a probability that the first object is associated with a first identifier and a probability that the first object is associated with a second identifier.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: May 23, 2023
    Assignee: 7-ELEVEN, INC.
    Inventors: Shahmeer Ali Mirza, Sailesh Bharathwaaj Krishnamurthy, Trong Nghia Nguyen
  • Patent number: 11657584
    Abstract: An apparatus includes a display, interface, and processor. The interface receives a live camera feed from a camera directed at a first physical structure located in a physical space. The processor receives an indication of an event associated with the first physical structure and accordingly displays a first virtual structure corresponding to the first physical structure. The first virtual structure includes virtual items that emulate physical items located on the first physical structure. The processor additionally displays a recording of the live camera feed, which depicts the event associated with the first physical structure.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: May 23, 2023
    Assignee: 7-ELEVEN, INC.
    Inventors: Shahmeer Ali Mirza, Matthew Raymond Magee, Sarath Vakacharla, Trong Nghia Nguyen, Franklin Philips
  • Patent number: 11645698
    Abstract: An object tracking system includes a sensor, a weight sensor, and a tracking system. The sensor is configured to capture a frame of at least a portion of a rack within a global plane for a space. The tracking system is configured to detect a weight decrease on the weight sensor. The tracking system is further configured to receive the frame of the rack, to determine a pixel location for a person, to determine the person is within a predefined zone associated with the rack. The tracking system is further configured to identify the item associated with the weight sensor and to add the identified item to a digital cart associated with the person.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: May 9, 2023
    Assignee: 7-ELEVEN, INC.
    Inventors: Sarath Vakacharla, Sailesh Bharathwaaj Krishnamurthy, Shahmeer Ali Mirza, Trong Nghia Nguyen, Deepanjan Paul