Patents by Inventor Khai Nguyen
Khai 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: 20240146075Abstract: An electrified vehicle may include a plurality of electric drive units, a plurality of battery packs, a plurality of charge ports and a plurality of controllable switches. The switches may be controlled to flexibly configure power transfer into and out of the vehicle through one or more charge ports affecting one or more battery packs in parallel or individually passively or actively through inverter integrated converter charge transfer.Type: ApplicationFiled: October 28, 2022Publication date: May 2, 2024Inventors: Chandra S. Namuduri, Rashmi Prasad, Minh-Khai Nguyen
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Patent number: 11890954Abstract: A multi-function onboard charging module (OBCM) operable for charging a battery pack using a wide variety of offboard charging systems, such as to enable the OBCM to charge a battery pack using electrical power provided from different types of direct current (DC), single-phase alternating current (AC), and/or three-phase AC offboard charging systems.Type: GrantFiled: September 21, 2022Date of Patent: February 6, 2024Assignee: GM Global Technology Operations LLCInventors: Minh-Khai Nguyen, Sanjeev M. Naik
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Patent number: 11745611Abstract: A system for control of an electric powertrain is provided. The powertrain includes a battery configured for providing electrical energy at a first relatively higher voltage in direct current. The powertrain further includes a power inverter including a first phase circuit, a second phase circuit including first and second switches, and a third phase circuit including third and fourth switches. The powertrain further includes a motor configured for receiving alternating current electrical energy from the power inverter. The system further includes a computerized controller operating a charging cycle. The charging cycle includes deactivating the first phase circuit of the power inverter and selectively cyclically activating the first switch, the second switch, the third switch, and the fourth switch to direct electrical energy provided at a second relatively lower voltage in direct current through the motor to provide a flow of electrical energy at the first voltage to the battery.Type: GrantFiled: October 28, 2022Date of Patent: September 5, 2023Assignee: GM Global Technology Operations LLCInventors: Minh-Khai Nguyen, Rashmi Prasad, Chandra S. Namuduri
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Publication number: 20230019041Abstract: This disclosure describes a collective UAV in which multiple UAVs may be coupled together to form the collective UAV. A collective UAV may be used to aerially transport virtually any size, weight or quantity of items, travel longer distances, etc. For example, rather than using one large UAV to carry a larger or heavier item, multiple smaller UAVs may couple together to form a collective UAV that is used to carry the larger or heavier item.Type: ApplicationFiled: September 16, 2022Publication date: January 19, 2023Inventors: Nathan Michael Paczan, Michael John Elzinga, Raphael Hsieh, Luan Khai Nguyen
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Patent number: 11480958Abstract: This disclosure describes a collective UAV in which multiple UAVs may be coupled together to form the collective UAV. A collective UAV may be used to aerially transport virtually any size, weight or quantity of items, travel longer distances, etc. For example, rather than using one large UAV to carry a larger or heavier item, multiple smaller UAVs may couple together to form a collective UAV that is used to carry the larger or heavier item.Type: GrantFiled: February 19, 2015Date of Patent: October 25, 2022Assignee: Amazon Technologies, Inc.Inventors: Nathan Michael Paczan, Michael John Elzinga, Raphael Hsieh, Luan Khai Nguyen
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Patent number: 11138654Abstract: Techniques described herein include systems and methods for throttling requests for content to reduce stress on a check out pipeline associated with an electronic marketplace thereby avoiding overstressing a server to the point of no longer processing requests from users. In embodiments, first information may be maintained that identifies a ranking for a plurality of items based on a score. A predicted velocity of content requests about the plurality of items may be maintained and second information about an actual velocity of content requests about the plurality of items may be received. In response to a request for content, a portion of items may be identified based on the scores associated with said portion and partition the portion into a number of groups or partitions based on the predicted velocity and the second information. A data object that comprises the portion of items associated with a partition may be generated.Type: GrantFiled: July 27, 2017Date of Patent: October 5, 2021Assignee: Amazon Technologies, Inc.Inventors: Akash Kayal, Michael James McInerny, Jane Mooney, Brandon William Porter, Darryl Havens, Donald Arthur Parsons, Robert Karl Beckmeyer, Luan Khai Nguyen
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Patent number: 11107847Abstract: A pixel sensor, an imaging array that includes such pixel sensors, and a method for operating an imaging array are disclosed. The pixel sensor includes a transfer gate that connects a photodiode to a floating diffusion node in response to a transfer signal, a reset circuit, and a controller. The reset circuit is adapted to apply either a first potential or a second potential to the floating diffusion node, the second potential being less than the first potential. The controller is configured to cause the reset circuit to apply the first potential to the floating diffusion node while the transfer gate is conducting just prior to a start of an accumulation phase, and then apply the second potential to the floating diffusion node after the transfer gate is rendered non-conducting, the second potential is less than the first potential.Type: GrantFiled: April 19, 2019Date of Patent: August 31, 2021Assignee: BAE Systems Imaging Solutions Inc.Inventors: Hung T. Do, Chenguang Gong, Stephen W. Mims, Khai Nguyen
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Patent number: 11063777Abstract: Technologies are disclosed herein for asynchronous distributed editing of a structured document, such as a trouble ticket. A document management service receives edits to the structured document. The edits to the structured document include data to be stored in fields of the structured document and information identifying the fields into which the data in the edits is to be stored. The edits are synchronized to other instances of the document management service. Edits to the structured document made at the other instances of the document management service are also received and stored. When a request is received for the structured document, the edits to the document made at the various instances of the document management service are sorted based upon the order in which they were created. The edits are applied in the sorted order to generate the structured document.Type: GrantFiled: May 21, 2015Date of Patent: July 13, 2021Assignee: Amazon Technologies, Inc.Inventors: John Walter Heitmann, Brian Jacob Feinstein, Cory Barrett Kendall, Viraj Vijay Sanghvi, Luan Khai Nguyen
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Publication number: 20200335538Abstract: A pixel sensor, an imaging array that includes such pixel sensors, and a method for operating an imaging array are disclosed. The pixel sensor includes a transfer gate that connects a photodiode to a floating diffusion node in response to a transfer signal, a reset circuit, and a controller. The reset circuit is adapted to apply either a first potential or a second potential to the floating diffusion node, the second potential being less than the first potential. The controller is configured to cause the reset circuit to apply the first potential to the floating diffusion node while the transfer gate is conducting just prior to a start of an accumulation phase, and then apply the second potential to the floating diffusion node after the transfer gate is rendered non-conducting, the second potential is less than the first potential.Type: ApplicationFiled: April 19, 2019Publication date: October 22, 2020Applicant: BAE Systems Imaging Solutions Inc.Inventors: Hung T. Do, Chenguang Gong, Stephen W. Mims, Khai Nguyen
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Patent number: 10742219Abstract: A frequency divider includes a circuit that receives an input clock signal having a period T on an input port thereof and generates an output clock signal on an output port thereof having a period MT in response to a control signal specifying M is disclosed. Here, M is a positive integer and all transitions between logical one and logical zero in the output clock signal occur at integer multiples of T. In one embodiment, the circuit includes a module string having characterized by N identical modules connected in series to form a string of modules. Each module is configured such that when the clock signal having period T is input to the first module, the output clock signal having a period of MT is output from the last module, where M can have any value between one and a maximum number that depends on N.Type: GrantFiled: April 30, 2019Date of Patent: August 11, 2020Assignee: BAE Systems Imaging Solutions Inc.Inventors: Khai Nguyen, Andrew C. Ng
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Patent number: 10606449Abstract: Techniques for managing and discovering data using visual or audible representations may be provided. The data, in some examples, may correspond with individual items, and the system may correlate each item with a representation of the item (e.g., for navigation, for accessibility, etc.). The representations may be provided to allow discovery of the items in response to adjusting the resolution, audibly requesting information, or panning across a display to discover items that are displayed as these representations outside of the original presentation of representations. In some examples, the representation of the item may not be unique to the item or may be represented as a placeholder image or description. The higher the resolution, the more detail about the item may be provided. When an item is selected, item data may be provided that corresponds with the item.Type: GrantFiled: March 30, 2017Date of Patent: March 31, 2020Assignee: Amazon Technologies, Inc.Inventors: Darren Ernest Canavor, Moustafa Ghazal, Darryl Havens, Jane Mooney, Luan Khai Nguyen, Brandon William Porter
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Patent number: 10549487Abstract: Feedstock material used by an automated fabrication device may provide machine readable information about the feedstock material. In one implementation, the machine readable information may provide quality assurance for a produced object. The feedstock material or the object produced may store encoded machine readable information using one or more of a code, a taggant, a chemical marker, or a physical marker. The encoded machine readable information may be used to authenticate the composition of the produced object.Type: GrantFiled: August 27, 2015Date of Patent: February 4, 2020Assignee: AMAZON TECHNOLOGIES, INC.Inventors: William Alexander Strand, Luan Khai Nguyen
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Patent number: 10543673Abstract: Described herein is a system and method for detecting and compensating for an anomaly in three-dimensional object fabrication. A wall thickness computation component computes a wall thickness of a three-dimensional object to be fabricated. An edge map generation component generates an edge map for one or more portions of the three-dimensional object to be fabricated satisfying one or more wall thickness criteria. The wall thickness criteria includes, for example, a computed wall thickness less than an extrusion width of a fabrication apparatus, a computed wall thickness greater than an extrusion width and less than twice the extrusion width and/or a computed wall thickness not an integer multiple of the extrusion width. A tool path generation component generates a tool path based on the generated edge map.Type: GrantFiled: March 16, 2017Date of Patent: January 28, 2020Assignee: Microsoft Technology Licensing, LLCInventors: Khai Nguyen Tran, Emmett Walter Lalish
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Patent number: 10469781Abstract: A power distribution network is disclosed. The power distribution can be applied to imaging arrays and other circuits that include a large number of conductors that must be driven such that the conductors are biased such that substantially the same current flows in each conductor. The power distribution network includes a plurality of bit lines and a first power connection network. Each bit line is connected to a different location on a first power bus, which is divided into a plurality of first conducting segments. Each first conducting segment is connected to a plurality of the bit lines. Each bit line includes a constant current source that causes a bias current to flow in the bit line and through the first power bus. The first power connection network includes a plurality of conducting paths that connect a corresponding one of the first conducting segments to a first power rail.Type: GrantFiled: December 6, 2018Date of Patent: November 5, 2019Assignee: BAE Systems Imaging Solutions Inc.Inventors: Khai Nguyen, Peter Bartkovjak
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Patent number: 10452056Abstract: Described herein is a system and method system for fabricating a three-dimensional object using a plurality of extruders. Information including two-dimensional segments of a layer of a three-dimensional object to be fabricated using the plurality of extruders is received. Closed contour, two-dimensional polygons are computed based on the two-dimensional segments. Tool path(s) are generated based on the computed closed contour two-dimensional polygons. The generated tool path(s) are provided to a fabrication apparatus.Type: GrantFiled: July 25, 2017Date of Patent: October 22, 2019Assignee: Microsoft Technology Licensing, LLCInventors: Khai Nguyen Tran, Emmett Walter Lalish
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Patent number: 10417634Abstract: Methods, devices and program products are provided to provide on-line transaction verification. The method comprises receiving a transaction request and sending a transaction verification request to a computing device and/or account associated with a user. The method receives an electronic key authorization (EKA) code from a transaction verification apparatus. The EKA code is inaccessible when first and second housing portions of the apparatus are dis-connected from one another. The method determines whether the EKA code matches an account authorization code. A match indicates approval of the transaction. The transaction verification apparatus comprises a housing separated into first and second housing portions that are physically connectable to, and dis-connectable from, one another. The EKA code is only readable by the computing device from the transaction verification apparatus when first and second housing portions are connected to one another.Type: GrantFiled: August 29, 2014Date of Patent: September 17, 2019Assignee: Amazon Technologies, Inc.Inventors: William Alexander Strand, Luan Khai Nguyen
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Patent number: 10244111Abstract: Described are techniques for exchanging data, in an automated manner, with an automated system, such as an Interactive Voice Response (IVR) system. Data may be exchanged with the automated system via a data connection, separate from a telecommunication connection. User data responsive to requests received from the system via the data connection, or user data that corresponds to the identity of the system, may be automatically provided. A telecommunication connection may be initiated during or subsequent to the exchange of data via the data connection. A notification may be provided to a user responsive to receipt of audio data via the telecommunication connection, or a change in the received audio data.Type: GrantFiled: November 22, 2016Date of Patent: March 26, 2019Assignee: AMAZON TECHNOLOGIES, INC.Inventors: Luan Khai Nguyen, William Alexander Strand
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Publication number: 20190033827Abstract: Described herein is a system and method system for fabricating a three-dimensional object using a plurality of extruders. Information including two-dimensional segments of a layer of a three-dimensional object to be fabricated using the plurality of extruders is received. Closed contour, two-dimensional polygons are computed based on the two-dimensional segments. Tool path(s) are generated based on the computed closed contour two-dimensional polygons. The generated tool path(s) are provided to a fabrication apparatus.Type: ApplicationFiled: July 25, 2017Publication date: January 31, 2019Applicant: Microsoft Technology Licensing, LLCInventors: Khai Nguyen Tran, Emmett Walter Lalish
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Patent number: 10152743Abstract: Techniques are provided herein for utilizing a community pantry engine. The techniques include receiving, from a first user, a first order request for a first portion of a bulk item that comprises a first portion a second portion. A second user may be identified based at least in part on geographic locations of the first user and the second user. A notification related to the first order request may be provided to the second user. A second order request for the second portion for the bulk item may be received from the second user. Discounted delivery costs for the first order request and the second order request may be calculated. The first portion of the item may be provided to the first user according to the discounted delivery costs. The second portion of the bulk item may be provided to the second user according to the discounted delivery costs.Type: GrantFiled: September 28, 2015Date of Patent: December 11, 2018Assignee: Amazon Technologies, Inc.Inventors: Luan Khai Nguyen, William Alexander Strand
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Patent number: 10140083Abstract: Techniques described herein include a platform for generating customized media content to a user. In some embodiments, a service provider may receive attribute data related to an environment in which a media file is to be presented. In some embodiments, the service provider may receive a user configuration setting indicating one or more preferences for media presentation. The service provider may store media content as separate components, with each component being separately adjustable. Upon receiving a request for particular media content, the service provider may generate a media file from the stored media content in accordance with the user configuration settings and/or environment attribute data.Type: GrantFiled: September 23, 2015Date of Patent: November 27, 2018Assignee: Amazon Technolgies, Inc.Inventors: Luan Khai Nguyen, William Alexander Strand