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).
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Publication number: 20250125722Abstract: 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: ApplicationFiled: December 19, 2024Publication date: April 17, 2025Inventors: Thoan Nguyen, Nghia Nguyen, Viet Nguyen, Son Nguyen, Hien Lai, Phuong Nguyen
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Patent number: 12206325Abstract: 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: GrantFiled: April 17, 2023Date of Patent: January 21, 2025Assignee: SILICON STORAGE TECHNOLOGY, INC.Inventors: Thoan Nguyen, Nghia Nguyen, Viet Nguyen, Son Nguyen, Hien Lai, Phuong Nguyen
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Patent number: 12186065Abstract: 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: GrantFiled: September 4, 2019Date of Patent: January 7, 2025Assignee: EMVISION MEDICAL DEVICES LTDInventors: Amin Abbosh, Abdulrahman S. M Alqadami, Nghia Nguyen-Trong, Beadaa Mohammed, Thanh Phong Nguyen
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Patent number: 12163867Abstract: 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: GrantFiled: December 29, 2020Date of Patent: December 10, 2024Assignee: UCHICAGO ARGONNE, LLCInventors: Richard B. Vilim, Tat Nghia Nguyen, Haoyu Wang
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Publication number: 20240350062Abstract: 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: ApplicationFiled: April 19, 2024Publication date: October 24, 2024Inventors: Alexandra Mason, Hannah Sugrue, Nghia Nguyen, Erick Garstka, Jacob Ameiss, Melvin Finke
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Patent number: 12086872Abstract: 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: GrantFiled: February 22, 2022Date of Patent: September 10, 2024Assignee: 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
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Publication number: 20240266955Abstract: 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: ApplicationFiled: April 17, 2023Publication date: August 8, 2024Inventors: THOAN NGUYEN, NGHIA NGUYEN, VIET NGUYEN, SON NGUYEN, HIEN LAI, PHUONG NGUYEN
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Patent number: 12002263Abstract: 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: GrantFiled: July 24, 2020Date of Patent: June 4, 2024Assignee: 7-ELEVEN, INC.Inventors: Shahmeer Ali Mirza, Sailesh Bharathwaaj Krishnamurthy, Trong Nghia Nguyen, Sarath Vakacharla
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Publication number: 20240171069Abstract: 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: ApplicationFiled: February 14, 2023Publication date: May 23, 2024Inventors: Nghia Nguyen, Hien Lai, Thoan Nguyen, Son Nguyen, Viet Nguyen
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Publication number: 20240087144Abstract: 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: ApplicationFiled: November 16, 2023Publication date: March 14, 2024Inventors: Sailesh Bharathwaaj Krishnamurthy, Sarath Vakacharla, Trong Nghia Nguyen, Shahmeer Ali Mirza, Madan Mohan Chinnam, Caleb Austin Boulio, Deepanjan Paul, Fahad Mirza
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Publication number: 20240065194Abstract: 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: ApplicationFiled: August 24, 2023Publication date: February 29, 2024Inventors: Ngoc Duc NGUYEN, The Nghia NGUYEN, Van Khanh NGUYEN, Thi Tam TRUONG
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Patent number: 11914357Abstract: 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: GrantFiled: December 29, 2020Date of Patent: February 27, 2024Assignee: UCHICAGO ARGONNE, LLCInventors: Tat Nghia Nguyen, Richard B. Vilim, Roberto Ponciroli
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Publication number: 20240005389Abstract: 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: ApplicationFiled: September 13, 2023Publication date: January 4, 2024Inventors: Matthew Raymond MAGEE, Joshua E. BERRY, Trong Nghia NGUYEN, Ravi Kumar KURVA
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Patent number: 11823396Abstract: 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: GrantFiled: November 29, 2021Date of Patent: November 21, 2023Assignee: 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
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Patent number: 11798065Abstract: 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: GrantFiled: October 25, 2019Date of Patent: October 24, 2023Assignee: 7-ELEVEN, INC.Inventors: Matthew Raymond Magee, Joshua E. Berry, Trong Nghia Nguyen, Ravi Kumar Kurva
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Patent number: 11740157Abstract: 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: GrantFiled: December 29, 2020Date of Patent: August 29, 2023Assignee: UCHICAGO ARGONNE, LLCInventors: Tat Nghia Nguyen, Richard B. Vilim, Roberto Ponciroli
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Publication number: 20230235407Abstract: 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: ApplicationFiled: September 8, 2022Publication date: July 27, 2023Inventors: Hoai Nghia NGUYEN, Hoa Giang, Minh Duy Phan, Le Son Tran
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Patent number: 11659139Abstract: 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: GrantFiled: April 9, 2021Date of Patent: May 23, 2023Assignee: 7-ELEVEN, INC.Inventors: Shahmeer Ali Mirza, Sailesh Bharathwaaj Krishnamurthy, Trong Nghia Nguyen
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Patent number: 11657584Abstract: 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: GrantFiled: June 14, 2022Date of Patent: May 23, 2023Assignee: 7-ELEVEN, INC.Inventors: Shahmeer Ali Mirza, Matthew Raymond Magee, Sarath Vakacharla, Trong Nghia Nguyen, Franklin Philips
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Patent number: 11645698Abstract: 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: GrantFiled: December 15, 2020Date of Patent: May 9, 2023Assignee: 7-ELEVEN, INC.Inventors: Sarath Vakacharla, Sailesh Bharathwaaj Krishnamurthy, Shahmeer Ali Mirza, Trong Nghia Nguyen, Deepanjan Paul