Patents Assigned to The University of Hong Kong
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LUMBAR SPINE ANNATOMICAL ANNOTATION BASED ON MAGNETIC RESONANCE IMAGES USING ARTIFICIAL INTELLIGENCE
Publication number: 20230005138Abstract: A system for automated comprehensive assessment of clinical lumbar MRIs includes a MRI standardization component that reads MRI data from raw lumbar MRI files, uses an artificial intelligence (AI) model to convert the raw MRI data into a standardized format. A core assessment component automatically generates MRI assessment results, including multi-tissue anatomical annotation, multi-pathology detection and multi-pathology progression prediction based on the structured MRI data package. The core assessment component contains a semantic segmentation module that utilizes a deep learning artificial intelligence (AI) model to generate an MRI assessment results that contains multi-tissue anatomical annotation, a pathology detection module to generate multi-pathology detection, and a pathology progression prediction module to generate multi-pathology progression prediction.Type: ApplicationFiled: June 30, 2022Publication date: January 5, 2023Applicant: The University of Hong KongInventors: Xihe KUANG, Jason PY CHEUNG, Teng ZHANG -
Patent number: 11502543Abstract: Methods, apparatuses, and systems for wireless power transfer (WPT) in ball-and-socket type structures are provided. A ball and ball-socket structure can include conductive windings and conductive plates having a variety of shapes to optimize WPT over different angles as the ball moves or rotates within the ball-socket. One or both of capacitive coupling and inductive coupling can be incorporated.Type: GrantFiled: November 18, 2016Date of Patent: November 15, 2022Assignee: The University of Hong KongInventors: Shu Yuen Ron Hui, Cheng Zhang
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Patent number: 11386164Abstract: A computer implemented method for searching electronic documents, and associated system and computer program product. The method includes receiving an input representing an example-based search query and processing the input. The method also includes determining, for each of the electronic documents, a relevance score between the input and the corresponding electronic document. The determination is based on, at least, textual similarity between the input and the corresponding electronic document, topical similarity between the input and the corresponding electronic document, as well as linkage relationship in a linkage network of the plurality of electronic documents. The method also includes determining, based on the determined relevance scores, a search result containing one or more of the electronic documents. The search results will be provided to the user.Type: GrantFiled: May 13, 2020Date of Patent: July 12, 2022Assignees: City University of Hong Kong, The University of Hong KongInventors: Jianliang Zhao, Hailiang Chen, Ruiyun Xu
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Patent number: 11358288Abstract: A robotic end effector and method for use thereof are provided. The robotic end effector can include a rigid base structure (230), a plurality of rigid proximal phalanges (210) connected to the rigid base structure (230), a plurality of rigid distal phalanges (200) connected to the proximal phalanges (210) respectively, and a plurality of bellows (250), wherein one end of a proximal phalange (210) is connected to one end of the base structure (230) by a bellows (250), wherein one end of a distal phalange (200) is connected to a proximal phalange (210) by a bellows (250), and wherein a portion of the base structure (230), each proximal phalange (210), and each distal phalange (200) are covered in silicone rubber. It can achieve a high output force to input pressure ratio, and cost efficiently.Type: GrantFiled: December 12, 2018Date of Patent: June 14, 2022Assignee: The University of Hong KongInventors: Zheng Wang, Jianshu Zhou
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Publication number: 20220140751Abstract: A power converter circuit includes: a direct current (DC) side; a first passive network; a first current switching network; at least one floating capacitor; a second current switching network; a second passive network; and an alternating current (AC) side. The first passive network is connected between the DC side and the first current switching network for linking the DC side and the first current switching network. The first current switching network comprises at least four serially linked switches for switching the power converter circuit between switching cycles. The at least one floating capacitor is connected to the first current switching network. The second current switching network comprises two pairs of switches for providing an interface between the first current switching network and the second passive network. The second passive network is connected between the second current switching network and the AC side.Type: ApplicationFiled: March 10, 2020Publication date: May 5, 2022Applicant: The University of Hong KongInventors: Wenlong QI, Sinan LI, Siew Chong TAN, Shu Yuen HUI
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Publication number: 20220114448Abstract: In a neural network (NN) based wireless communication system, a BS determines, for an one-round latency T and an overall model size L of the NN model, i) Tu that makes {circumflex over (L)}*(Tu) larger than L and ii) Tl that makes {circumflex over (L)}*(Tl)<L; repeats determining {circumflex over (L)}*(Tm), {R*k,n}, {{circumflex over (L)}*k}, and {C*k,n} by using Tm=(Tu+Tl)/2 for k=1, K, and n=1, . . . N, while Tu is different from Tl; allocates NN model parameters to user equipments 1 to K based on {R*k,n}, {L*k}, and {C*k,n} determined based on Tm when Tu=Tl; and updates the NN model based on update results of the NN model parameters received from user equipments 1 to K.Type: ApplicationFiled: October 8, 2021Publication date: April 14, 2022Applicant: The University of Hong KongInventors: Kijun Jeon, Kaibin Huang, Dingzhu Wen, Sangrim Lee, Sungjin Kim
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Patent number: 11285833Abstract: The present invention provides a method for charging an electric vehicle. The method includes two steps. The first step is to move at least one of a transmitter coil of a charger and a receiver coil arranged at an upper end of a chassis of an electric vehicle relative to the other. The second step is to align the transmitter coil with the receiver coil such that the transmitter coil is arranged above and proximal to the receiver coil. The present invention also provides an electric vehicle arranged to be charged by the above method, a method for manufacturing such electric vehicle, and a charger or charging station that is arranged to charge electric vehicles using the above method.Type: GrantFiled: March 22, 2018Date of Patent: March 29, 2022Assignee: The University of Hong KongInventor: Shu Yuen Ron Hui
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Patent number: 11222756Abstract: Graphene photodetectors capable of operating in the sub-bandgap region relative to the bandgap of semiconductor nanoparticles, as well as methods of manufacturing the same, are provided. A photodetector can include a layer of graphene, a layer of semiconductor nanoparticles, a dielectric layer, a supporting medium, and a packaging layer. The semiconductor nanoparticles can be semiconductors with bandgaps larger than the energy of photons meant to be detected.Type: GrantFiled: August 18, 2020Date of Patent: January 11, 2022Assignee: The University of Hong KongInventors: Jinyao Tang, Ze Xiong, Jiawei Chen
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Patent number: 11208699Abstract: The present invention provides novel Epstein Barr virus (EBV) variants including those associated with increased risk for developing nasopharyngeal carcinoma (NPC).Type: GrantFiled: October 31, 2019Date of Patent: December 28, 2021Assignee: The University of Hong KongInventors: Alan Kwok Shing Chiang, Kwai Fung Hui
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Patent number: 11146170Abstract: A power converter comprising one or more switch blocks. Each switch block has: a plurality of switch-pairs each having two switches connected in series to each other; a plurality of primary nodes each interconnecting the switches in a respective switch-pair; and a plurality of secondary nodes, each switch-pair being connected in series to an adjacent switch-pair through a said secondary node to form a serial chain of switch-pairs, the secondary nodes including a secondary node at one end of said serial chain and a secondary node at another end of said serial chain. Each adjacent pair of said primary nodes is connectable to a flying capacitor. Each pair of said secondary nodes is connectable to one or more of the following: one or more bypass capacitors, and one or more other said switch blocks.Type: GrantFiled: February 27, 2015Date of Patent: October 12, 2021Assignee: The University of Hong KongInventors: Song Xiong, Siew Chong Tan, Shu Yuen Ron Hui
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Patent number: 11018310Abstract: A highly rigid tetradentate ligand is combined with a gold(III) ion as a thermally stable tetradentate gold(III) complex. The tetradentate gold(III) complex is a tetradentate gold(III) compound that can be used as a light-emitting material which can be used for fabricated of light-emitting devices such as an organic light-emitting diode (OLED). The tetradentate gold(III) compound can be deposited as a layer or a component of a layer using a solution-process or a vacuum deposition process. The luminescent tetradentate gold(III) compounds are robust and can provide electroluminescence (EL) with a high efficiency and brightness.Type: GrantFiled: January 30, 2017Date of Patent: May 25, 2021Assignee: The University of Hong KongInventors: Vivian Wing-Wah Yam, Hok-Lai Wong, Yiu-Wing Wong, Mei-Yee Chan
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Patent number: 10987432Abstract: Therapeutic methods for cancer treatments using a combined prokaryotic-eukaryotic delivery and expression system for the delivery of multiple therapeutic factors via a modified tumor-targeted bacteria. A targeted bacteria-vector system elicits an inter-kingdom dual expression (IKDE) of antitumor agents, in the nucleus or cytoplasm of eukaryotic cells, with priming and maintenance of the vector in the bacterium. The therapeutic factors include small interfering RNAs, tumoricidal proteins, DNA molecules, or a combination thereof. The system provides direct killing of tumor cells and alters the tumor microenvironment by expressing anti-angiogenic factors and cytokines in intracellular and/or extracellular environments. Also provided are methods of using natural exosomes comprising cargoes obtained from the bacterially infected cells. The bacteria-vector system is useful for many types of tumor and cancer as well as recombinant vaccines.Type: GrantFiled: September 5, 2013Date of Patent: April 27, 2021Assignee: The University of Hong KongInventors: Jian-Dong Huang, Lei Shi, Bin Yu
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Patent number: 10968463Abstract: OsACBP5 can be used to enhance tolerance to fungal necrotrophs in genetically modified plants. OsACBP5-overexpressing transgenic Arabidopsis were conferred enhanced tolerance to fungal necrotrophs such as root-infecting necrotroph Rhizoctonia solani and shoot-infecting necrotrophs (Botrytis cinerea and Alternaria brassicicola). Vectors/expression cassettes for conferring tolerance to fungal necrotrophs to plants/plant material are provided. Methods of using OsACBP5 to enhance tolerance to fungal necrotrophs are provided. Plants and plant material with improved tolerance to fungal necrotrophs are also provided. Methods for screening for genes with OsACBP5-like activity are also provided.Type: GrantFiled: July 11, 2016Date of Patent: April 6, 2021Assignee: The University of Hong KongInventors: Mee Len Chye, Saritha Panthapulakkal Narayanan, Clive Sze Chung Lo, Pan Liao
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Patent number: 10966842Abstract: Devices and methods for the removal of bone implant tips from within a bony structure in a body. The device or method includes a shaft with an internal grasping feature capable of being inserted while remaining in an un-expanded, un-deployed state. This permits a surgeon or operator to insert the device while in a small profile state, avoiding or reducing damage to adjacent bone tissue during insertion. Upon insertion of the shaft to the proper position within a patient's bone, the grasping feature may then be expanded or deployed from the distal end of the shaft by a surgeon or operator using an actuator in a handle attached to the proximal end of the shaft. Following deployment, the grasping feature may be used to manipulate and/or remove a bone implant tip from a patient's bone tissue. Embodiments of the grasping feature include one or more hooks, wires, articulating fingers, and/or net-based designs formed of metal, polymer, composite, or a combination thereof.Type: GrantFiled: July 11, 2018Date of Patent: April 6, 2021Assignee: The University of Hong KongInventors: Sloan Austin Kulper, Erica Ann Boles, Xinshuo Christian Fang, Ka Li Frankie Leung, Weijia William Lu
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Patent number: 10923957Abstract: Devices and systems of inductive-capacitive (LC) coil-resonators that can be embedded easily inside high-voltage insulation discs are provided. Each LC coil-resonator comprises spiral conductive tracks fabricated or printed in the form of at least two layers of planar spiral windings on electrically non-conductive materials. The planar conductive windings on at least two parallel layers may be connected to form a closed winding. The distributed inductance associated with the planar spiral windings and the distributed capacitance between the layers of the conductive tracks form an equivalent LC coil-resonator. When these LC coil-resonators are embedded in some or all of the insulation discs in a high-voltage insulation rod, they form the relay coil-resonators for wireless power transfer.Type: GrantFiled: July 16, 2018Date of Patent: February 16, 2021Assignee: The University of Hong KongInventors: Chi Kwan Lee, Shu Yuen Ron Hui, Jialong Qu
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Patent number: 10903756Abstract: A system and a control method for generating multiple independent alternating current (AC) voltages from a direct current (DC) voltage source in a single-inductor multiple-output (SIMO) inverter are disclosed. The system comprising: a DC voltage source (101) for providing electrical energy; a front-stage DC-DC power converter (105) comprising exactly one inductor as an energy storage element for power conversion and a main switching element; a plurality of selectable output branches (106), wherein each output branch comprises an output selection switch (107), a resonant tank (110), and a transmitter coil (109), wherein the resonant tank converts output power of the DC-DC power converter into AC power for feeding the transmitter coil; and a controller (104) for determining ON/OFF states of the main switching element and the output selection switch of each of the output branches.Type: GrantFiled: December 14, 2016Date of Patent: January 26, 2021Assignee: The University of Hong KongInventors: Ting Leung Albert Lee, Weijian Jin, Sinan Li, Siew Chong Tan, Shu Yuen Ron Hui
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Patent number: 10903692Abstract: The present invention is directed towards methods and systems for omni-directional wireless power transfer. The method comprises generating magnetic field in all directions, detecting the loads based on the magnetic field shape and focusing the power flow towards the detected loads, so as to maximize the energy efficiency of the wireless power transfer.Type: GrantFiled: March 27, 2019Date of Patent: January 26, 2021Assignee: The University of Hong KongInventors: Cheng Zhang, Deyan Lin, Shu Yuen Ron Hui
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Patent number: 10855048Abstract: Briefly, methods and/or systems, are described for a wavelength-dispersive mode-locked fiber-ring laser, which generates an Airy beam profile for stable optical pulses.Type: GrantFiled: June 1, 2017Date of Patent: December 1, 2020Assignee: The University of Hong KongInventors: Kin Yip Kenneth Wong, Xiaoming Wei
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Patent number: 10852359Abstract: A DC-component-based fault classification apparatus and method for a three-phase power distribution cable utilizes the reconstructed three-phase currents by measuring the magnetic field around the cable with an array of magnetic sensors arranged around the cable surface. A magnetic shield houses the magnetic sensors and blocks background magnetic fields. A data acquisition system acquires analog signals from the sensors and a processing system extracts DC components in the analog signals for the phases during the transient period after a fault. The potential DC components are extracted by mathematical morphology. These DC components arise in the faulted phases when a fault occurs since there is a large current change in the inductive power network.Type: GrantFiled: December 5, 2017Date of Patent: December 1, 2020Assignee: The University of Hong KongInventors: Wing Tat Pong, Ke Zhu
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Patent number: 10851127Abstract: Provided herein are platinum complexes of Formula I: Also, provided are methods of making the platinum complexes of Formula I and apparatuses that include platinum complexes of Formula I. The apparatuses can include near infrared organic light emitting devices.Type: GrantFiled: March 7, 2018Date of Patent: December 1, 2020Assignee: The University of Hong KongInventors: Chi Ming Che, Chun Lam Kwong