Patents by Inventor Quan Anh Nguyen
Quan Anh 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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Patent number: 11957804Abstract: High-energy optical disinfection systems inside a commercial airplane using highly efficient, flexible, and durable side-emitting optical fibers optically coupled to high-energy UV-C laser diodes to destroy submicroscopic infectious agents and inactivate microorganisms inside the airplane. With the high-energy UV-C laser diodes optically coupled to the side-emitting optical fibers, which can be easily routed to different areas inside the airplane, the high-energy UV-C laser light emitted from the side of the optical fiber will disinfect the airplane along a wide or long swath continuously without interruption.Type: GrantFiled: August 6, 2021Date of Patent: April 16, 2024Assignee: The Boeing CompanyInventors: Eric Y. Chan, Dennis G. Koshinz, Kim Quan Anh Nguyen, Lyndon G. Mazon
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Publication number: 20230306061Abstract: Techniques are disclosed relating to automatically generating and analyzing database queries. In various embodiments, a database inquiry assistance system maintains a first machine learning model trained using query history data for a database and a second machine learning model using analysis history for the database. In an embodiment, the system receives from a user system a request for an inquiry into data stored in the database and identifies a sequence of queries for responding to the request, where identifying the sequence of queries includes applying the second machine learning model to the request. The system generates corresponding database query code for implementing one or more of the queries in the sequence of queries, where generating the corresponding database query code includes applying the first machine learning model to descriptors of one or more of the queries, and sends a plan identifying the sequence of queries to the user system.Type: ApplicationFiled: March 22, 2022Publication date: September 28, 2023Inventors: Kim Dung BUI, Quan Anh NGUYEN, George Chen KAIDI, Phoram Kirtikumar MEHTA, Van Hoang NGUYEN, Li Hua LIM
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Patent number: 11455713Abstract: Techniques are disclosed relating to determining whether document objects included in an image correspond to known document types. In some embodiments, a computing system maintains information specifying a set of known document types. In some embodiments, the computing system receives an image that includes objects. In some embodiments, the computing system analyzes, using a first neural network, the image to identify a document object and location information specifying a location of the document object within the image. In some embodiments, the computing system determines, using a second neural network, whether the document object within the image corresponds to a document type specified in the set of known document types, where the determining is performed based on the location information of the document object. In some embodiments, disclosed techniques may assist in automatically extracting information from documents, which in turn may advantageously decrease processing time for onboarding new customers.Type: GrantFiled: May 8, 2020Date of Patent: September 27, 2022Assignee: PayPal, Inc.Inventors: Quan Jin Ferdinand Tang, Jiyi Zhang, Xiaodong Yu, Shek Hei Wong, Long Phi Huynh, Quan Anh Nguyen, Hans Tananda, Kai Xie
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Publication number: 20220102937Abstract: An optical subassembly includes a housing, a laser package, and first and second end sections of side-emitting optical fiber. The housing defines first, second, and third channels which extend from a central space. The laser package is affixed to the third channel and comprises an edge-emitting UV-C laser diode disposed in the central space and having first and second edges. The first end section of side-emitting optical fiber is retained in the first channel and has a first end face which confronts the first edge. The second end section of side-emitting optical fiber is retained in the second channel and has a second end face which confronts the second edge. The housing further defines a fourth channel which extends from the central space. The optical subassembly further includes a transparent window seated in an opening of the fourth channel.Type: ApplicationFiled: August 6, 2021Publication date: March 31, 2022Applicant: The Boeing CompanyInventors: Eric Y. Chan, Dennis G. Koshinz, Kim Quan Anh Nguyen, Lyndon G. Mazon
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Publication number: 20220096677Abstract: High-energy optical disinfection systems inside a commercial airplane using highly efficient, flexible, and durable side-emitting optical fibers optically coupled to high-energy UV-C laser diodes to destroy submicroscopic infectious agents and inactivate microorganisms inside the airplane. With the high-energy UV-C laser diodes optically coupled to the side-emitting optical fibers, which can be easily routed to different areas inside the airplane, the high-energy UV-C laser light emitted from the side of the optical fiber will disinfect the airplane along a wide or long swath continuously without interruption.Type: ApplicationFiled: August 6, 2021Publication date: March 31, 2022Applicant: The Boeing CompanyInventors: Eric Y. Chan, Dennis G. Koshinz, Kim Quan Anh Nguyen, Lyndon G. Mazon
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Patent number: 11243365Abstract: Methods for providing flammability protection for plastic optical fiber (POF) embedded inside avionics line replaceable units (LRUs) or other equipment used in airborne vehicles such as commercial or fighter aircrafts. A thin and flexible flammability protection tube is placed around the POF. In one proposed implementation, a very thin (100 to 250 microns in wall thickness) polyimide tube is placed outside and around the POF cable embedded inside an LRU or other equipment. The thin-walled polyimide tube does not diminish the flexibility of the POF cable.Type: GrantFiled: November 16, 2018Date of Patent: February 8, 2022Assignee: The Boeing CompanyInventors: Dennis G. Koshinz, Eric Y. Chan, Tuong K. Truong, Henry B. Pang, Kim Quan Anh Nguyen
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Publication number: 20210350516Abstract: Techniques are disclosed relating to determining whether document objects included in an image correspond to known document types. In some embodiments, a computing system maintains information specifying a set of known document types. In some embodiments, the computing system receives an image that includes objects. In some embodiments, the computing system analyzes, using a first neural network, the image to identify a document object and location information specifying a location of the document object within the image. In some embodiments, the computing system determines, using a second neural network, whether the document object within the image corresponds to a document type specified in the set of known document types, where the determining is performed based on the location information of the document object. In some embodiments, disclosed techniques may assist in automatically extracting information from documents, which in turn may advantageously decrease processing time for onboarding new customers.Type: ApplicationFiled: May 8, 2020Publication date: November 11, 2021Inventors: Quan Jin Ferdinand Tang, Jiyi Zhang, Xiaodong Yu, Shek Hei Wong, Long Phi Huynh, Quan Anh Nguyen, Hans Tananda, Kai Xie
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Publication number: 20210263233Abstract: A process for polishing the end face of a gigabit plastic optical fiber (GbPOF) to produce a mirror smooth surface without any defect. Smooth GbPOF end faces reduce the optical coupling loss when two plastic optical fibers are connected. The polishing process can be used to produce GbPOF end faces which are free of defects such as scratches. The polishing process involves the use of successive abrasive films having decreasing surface roughness to abrade the end of a GbPOF. More specifically, each subsequently applied abrasive film has a mean particle size which is less than the mean particle size of the previously applied abrasive film.Type: ApplicationFiled: February 26, 2020Publication date: August 26, 2021Applicant: The Boeing CompanyInventors: Dennis G. Koshinz, Eric Y. Chan, Kim Quan Anh Nguyen
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Patent number: 11079554Abstract: A process for polishing the end face of a gigabit plastic optical fiber (GbPOF) to produce a mirror smooth surface without any defect. Smooth GbPOF end faces reduce the optical coupling loss when two plastic optical fibers are connected. The polishing process can be used to produce GbPOF end faces which are free of defects such as scratches. The polishing process involves the use of successive abrasive films having decreasing surface roughness to abrade the end of a GbPOF. More specifically, each subsequently applied abrasive film has a mean particle size which is less than the mean particle size of the previously applied abrasive film.Type: GrantFiled: February 26, 2020Date of Patent: August 3, 2021Assignee: The Boeing CompanyInventors: Dennis G. Koshinz, Eric Y. Chan, Kim Quan Anh Nguyen
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Patent number: 10998976Abstract: A process to enhance the performance of plastic optical fiber to operate with a high data rate (e.g., at least 1 gigabit per second) at high temperature (e.g., 100 degrees Celsius) for airplane avionic systems. Gigabit plastic optical fiber has a core including a dopant that enables data transmission at gigabit rates. The enhancement process uses rapid thermal cooling of the gigabit plastic optical fiber to stabilize the polymer matrix of the fiber. This rapid cooling treatment blocks dopant diffusion in a high-temperature environment, thereby avoiding degradation of the fiber's bandwidth and optical loss characteristic. Such degradation typically occurs in gigabit plastic optical fiber having core and cladding made of transparent carbon-hydrogen bond-free perfluorinated polymer.Type: GrantFiled: August 26, 2019Date of Patent: May 4, 2021Assignee: The Boeing CompanyInventors: Eric Y. Chan, Dennis G. Koshinz, Kim Quan Anh Nguyen
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Publication number: 20210067250Abstract: A process to enhance the performance of plastic optical fiber to operate with a high data rate (e.g., at least 1 gigabit per second) at high temperature (e.g., 100 degrees Celsius) for airplane avionic systems. Gigabit plastic optical fiber has a core including a dopant that enables data transmission at gigabit rates. The enhancement process uses rapid thermal cooling of the gigabit plastic optical fiber to stabilize the polymer matrix of the fiber. This rapid cooling treatment blocks dopant diffusion in a high-temperature environment, thereby avoiding degradation of the fiber's bandwidth and optical loss characteristic. Such degradation typically occurs in gigabit plastic optical fiber having core and cladding made of transparent carbon-hydrogen bond-free perfluorinated polymer.Type: ApplicationFiled: August 26, 2019Publication date: March 4, 2021Applicant: The Boeing CompanyInventors: Eric Y. Chan, Dennis G. Koshinz, Kim Quan Anh Nguyen
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Patent number: 10895696Abstract: An epoxy-free, high-durability and low-cost plastic optical fiber splice design and fabrication process which meets commercial airplane environmental requirements. The splice design: (1) does not require the use of epoxy to join the end faces of two plastic optical fibers together; (2) incorporates double-crimp rings to provide highly durable pull force for the plastic optical fibers that are joined together; (3) resolves any vibration problem at the plastic optical fiber end faces using a miniature stop inside a splice alignment sleeve; and (4) incorporates a splice alignment sleeve that can be mass produced using precision molding or three-dimensional printing processes.Type: GrantFiled: October 25, 2019Date of Patent: January 19, 2021Assignee: The Boeing CompanyInventors: Dennis G. Koshinz, Eric Y. Chan, Tuong K. Truong, Kim Quan Anh Nguyen
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Patent number: 10852494Abstract: An apparatus configured to function as a pluggable active optical connector that is modular with one or more channels and that converts electrical signals to optical signals and vice versa. On one side, the apparatus has a pluggable electrical interface to a line replaceable unit (LRU); on the other side the apparatus has a pluggable optical interface side to an aircraft fiber optic wiring bundle. The apparatus is pluggable to different types of LRUs including rack-mounted and bolted-down LRUs. The apparatus includes electronic and photonic components sufficient to enable electrical/optical conversion totally within a standard-sized aircraft connector. The apparatus is adaptable to various data communication protocols and has the flexibility to be used in either a single-fiber or a dual-fiber bidirectional data link.Type: GrantFiled: December 11, 2018Date of Patent: December 1, 2020Assignee: The Boeing CompanyInventors: Tuong K. Truong, Eric Y. Chan, Dennis G. Koshinz, Kim Quan Anh Nguyen, Henry B. Pang
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Patent number: 10845231Abstract: Systems and methods that use a differential spectral liquid level sensor to measure the level of liquid in a reservoir (e.g., a fuel tank or other storage container). The use of a differential spectral liquid level sensor solves the problem of common-mode intensity variations (i.e., intensity variations not due to the level of the liquid) by having two different wavelengths propagate through the same optical path but have different spectral attenuations in the liquid. By determining the ratio of the received optical powers, common-mode intensity variations can be neutralized, thereby enhancing the accuracy of the received power reading and the resulting liquid level indication.Type: GrantFiled: June 14, 2019Date of Patent: November 24, 2020Assignee: The Boeing CompanyInventors: Tuong K. Truong, Eric Y. Chan, Dennis G. Koshinz, Kim Quan Anh Nguyen, Eric J. Harvey
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Publication number: 20200183104Abstract: An apparatus configured to function as a pluggable active optical connector that is modular with one or more channels and that converts electrical signals to optical signals and vice versa. On one side, the apparatus has a pluggable electrical interface to a line replaceable unit (LRU); on the other side the apparatus has a pluggable optical interface side to an aircraft fiber optic wiring bundle. The apparatus is pluggable to different types of LRUs including rack-mounted and bolted-down LRUs. The apparatus includes electronic and photonic components sufficient to enable electrical/optical conversion totally within a standard-sized aircraft connector. The apparatus is adaptable to various data communication protocols and has the flexibility to be used in either a single-fiber or a dual-fiber bidirectional data link.Type: ApplicationFiled: December 11, 2018Publication date: June 11, 2020Applicant: The Boeing CompanyInventors: Tuong K. Truong, Eric Y. Chan, Dennis G. Koshinz, Kim Quan Anh Nguyen, Henry B. Pang
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Publication number: 20200158972Abstract: Methods for providing flammability protection for plastic optical fiber (POF) embedded inside avionics line replaceable units (LRUs) or other equipment used in airborne vehicles such as commercial or fighter aircrafts. A thin and flexible flammability protection tube is placed around the POF. In one proposed implementation, a very thin (100 to 250 microns in wall thickness) polyimide tube is placed outside and around the POF cable embedded inside an LRU or other equipment. The thin-walled polyimide tube does not diminish the flexibility of the POF cable.Type: ApplicationFiled: November 16, 2018Publication date: May 21, 2020Applicant: The Boeing CompanyInventors: Dennis G. Koshinz, Eric Y. Chan, Tuong K. Truong, Henry B. Pang, Kim Quan Anh Nguyen
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Patent number: 10615876Abstract: A controller area network (CAN) comprising a plurality of CAN nodes that communicate via a CAN bus that comprises a fiber optical network. The fiber optical network uses a single fiber and a single wavelength for transmit and receive, and comprises a passive reflective optical star. The reflective optical star comprises an optical mixing rod having a mirror at one end. The other end of the reflective optical star is optically coupled to the transmitters and receivers of a plurality of optical-electrical media converters by way of respective high-isolation optical Y-couplers. Each CAN node produces electrical signals (in accordance with the CAN message-based protocol) which are converted into optical pulses that are broadcast to the fiber optical network. Those optical pulses are then reflected back to all CAN nodes by the reflective optical star.Type: GrantFiled: March 16, 2019Date of Patent: April 7, 2020Assignee: The Boeing CompanyInventors: Tuong K. Truong, Eric Y. Chan, Dennis G. Koshinz, Kim Quan Anh Nguyen, Barkhung Henry Pang, Sean M. Ramey, Timothy E. Jackson
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Publication number: 20200057203Abstract: An epoxy-free, high-durability and low-cost plastic optical fiber splice design and fabrication process which meets commercial airplane environmental requirements. The splice design: (1) does not require the use of epoxy to join the end faces of two plastic optical fibers together; (2) incorporates double-crimp rings to provide highly durable pull force for the plastic optical fibers that are joined together; (3) resolves any vibration problem at the plastic optical fiber end faces using a miniature stop inside a splice alignment sleeve; and (4) incorporates a splice alignment sleeve that can be mass produced using precision molding or three-dimensional printing processes.Type: ApplicationFiled: October 25, 2019Publication date: February 20, 2020Applicant: The Boeing CompanyInventors: Dennis G. Koshinz, Eric Y. Chan, Tuong K. Truong, Kim Quan Anh Nguyen
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Patent number: 10495821Abstract: An epoxy-free, high-durability and low-cost plastic optical fiber splice design and fabrication process which meets commercial airplane environmental requirements. The splice design: (1) does not require the use of epoxy to join the end faces of two plastic optical fibers together; (2) incorporates double-crimp rings to provide highly durable pull force for the plastic optical fibers that are joined together; (3) resolves any vibration problem at the plastic optical fiber end faces using a miniature stop inside a splice alignment sleeve; and (4) incorporates a splice alignment sleeve that can be mass produced using precision molding or three-dimensional printing processes.Type: GrantFiled: July 26, 2018Date of Patent: December 3, 2019Assignee: The Boeing CompanyInventors: Dennis G. Koshinz, Eric Y. Chan, Tuong K. Truong, Kim Quan Anh Nguyen
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Publication number: 20190293473Abstract: Systems and methods that use a differential spectral liquid level sensor to measure the level of liquid in a reservoir (e.g., a fuel tank or other storage container). The use of a differential spectral liquid level sensor solves the problem of common-mode intensity variations (i.e., intensity variations not due to the level of the liquid) by having two different wavelengths propagate through the same optical path but have different spectral attenuations in the liquid. By determining the ratio of the received optical powers, common-mode intensity variations can be neutralized, thereby enhancing the accuracy of the received power reading and the resulting liquid level indication.Type: ApplicationFiled: June 14, 2019Publication date: September 26, 2019Applicant: The Boeing CompanyInventors: Tuong K. Truong, Eric Y. Chan, Dennis G. Koshinz, Kim Quan Anh Nguyen, Eric J. Harvey