Patents by Inventor Kai Shi
Kai Shi 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: 20250258223Abstract: The present application provides a dynamic selection method, system and device for a data region applied to an integrated circuit device, and a computer-readable storage medium. Through the technical solutions provided by the present application, the dynamic selection for the data region can be achieved, the strict dependence on an original dataset in the data region selection process is removed, the complexity of data region selection for different integrated circuit devices is simplified, and the universality and reusability of data region selection are improved. The application range is wide, and the popularization value is achieved.Type: ApplicationFiled: December 28, 2022Publication date: August 14, 2025Inventors: Hancheng LIANG, Kai SHI, Zhihong LIU
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Publication number: 20250237824Abstract: An optical transmitter includes an array of light sources to transmit visible light having a wavelength of from 580 nm to 700 nm along a respective core of a multicore fibre optic cable for receipt at a corresponding photodetector array of an optical receiver unit, and a controller that receives data from a transmitting computer system and encodes and transmits it by modulating the visible light output by the array of light sources. An optical receiver unit includes a photodetector array to receive the modulated visible light from the multicore fibre optic cable; and a controller to receive the output of the photodetectors; decode data from the received output, and provide the decoded data to a receiving computer system. An optical transceiver unit includes the optical transmitter and optical receiver.Type: ApplicationFiled: March 13, 2023Publication date: July 24, 2025Inventors: Paola COSTA, Thomas KARAGIANNIS, Kai SHI, Hitesh BALLANI, Shawn Yohanes SIEW, Vasily LYUTSAREV, Ariel GOMEZ DIAZ
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Publication number: 20250224567Abstract: A filtering unit for an optical communication system includes an optical band-pass filter that narrows pulses of modulated light emitted by an array of light sources in the communication system. The filtering unit can be included in an optical transmitter that includes the array of light sources, and a controller that receives data from a transmitting computer system and encodes and transmits it by modulating the visible light output by the array of light sources. The filtering unit can also be included in an optical receiver unit that includes a photodetector array to receive the modulated visible light; and a controller to receive the output of the photodetectors; decode data from the received output, and provide the decoded data to a receiving computer system.Type: ApplicationFiled: March 13, 2023Publication date: July 10, 2025Inventors: Paola COSTA, Thomas KARAGIANNIS, Hitesh BALLANI, Kai SHI, Vasily LYUTSAREV, Ariel GOMEZ DIAZ, Shawn Yohanes SIEW
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Publication number: 20250226886Abstract: A lens unit for an optical transmitter unit receives visible light emitted from an array of light sources of optical transmitter unit. The lens unit then directs the visible emitted from the array of light sources into a plurality of cores of a multicore fibre optic cable connectable between the optical transmitter unit and an optical receiver unit. The lens unit comprises a single axis of optical symmetry. The lens unit can be included in an optical transmitter unit or an optical transceiver unit.Type: ApplicationFiled: March 13, 2023Publication date: July 10, 2025Inventors: Paola COSTA, Thomas KARAGIANNIS, Hitesh BALLANI, Kai SHI, Vasily LYUTSAREV, Ariel GOMEZ DIAZ, Shawn Yohanes SIEW
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Publication number: 20250226891Abstract: A filtering unit includes a dispersive optical element that receives modulated visible light from an optical transmitter unit, separates the received modulated visible light into a plurality of optical signals based on wavelength; and direct the plurality of optical signals to a photodetector array of an optical receiver unit, each photodetector in the photodetector array comprising a plurality of filters and a plurality of corresponding photodiodes each arranged to receive light from a respective one of the plurality of filters. The filtering unit can be included in the optical receiver unit including the photodetector array to receive the modulated visible light from the multicore fibre optic cable; and a controller to receive the output of the photodetectors; decode data from the received output, and provide the decoded data to a receiving computer system.Type: ApplicationFiled: March 13, 2023Publication date: July 10, 2025Inventors: Paola COSTA, Thomas KARAGIANNIS, Hitesh BALLANI, Kai SHI, Vasily LYUTSAREV, Ariel GOMEZ DIAZ, Shawn Yohanes SIEW
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Publication number: 20250219741Abstract: A photoreceiver circuit for a photodetector provides an output signal. The photoreceiver circuit includes a photodiode that receives an optical signal during a charge period and generates a charge corresponding to an intensity of the optical signal. The circuit includes at least one integrating transistor that accumulates the charge generated by the photodiode, and a reset circuit element that resets the photodiode after the charge period. The circuit also includes a comparator that provides the output signal of the photoreceiver circuit by comparing an output of the integrating transistor caused by the accumulated charge to a threshold value. The photoreceiver circuit can form part of a photodetector array, which can be used as part of an optical transceiver system.Type: ApplicationFiled: March 24, 2023Publication date: July 3, 2025Inventors: Paola COSTA, Kai SHI, Siew Shawn Yohanes, Charlie BOECKER
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Patent number: 12328148Abstract: A switching network for effecting point-to-point communication between nodes has a time-varying switching configuration, which causes successive activation and deactivation of multiple channels of the switching network, a first of the channels connecting, when activated, a transmitter node and a first receiver node, and a second of the channels connecting, when activated, the transmitter node and a second receiver node.Type: GrantFiled: December 28, 2023Date of Patent: June 10, 2025Assignee: Microsoft Technology Licensing, LLCInventors: Kai Shi, Paolo Costa, Hitesh Ballani, Istvan Haller, Daniel Jonathan Finchley Cletheroe, Sophie Gloria Lange, Raphael Eric Alfred Behrendt, Foteini Karinou, Krzysztof Jozwik
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Patent number: 12298553Abstract: A method of fabricating a graded-index polymer optical fibre comprises preparing a cladding composition, the cladding composition comprising either a mixture of a cladding polymer and a dopant or a mixture of a cladding polymer precursor and a dopant; forming cladding from the cladding composition around a core, the core comprising a core polymer; and causing diffusion of the dopant into the core such that the dopant has a continuous concentration gradient, according to which concentration gradient the concentration of the dopant increases with radial distance from a centre of the core. The dopant is a compound having a refractive index which is lower than a refractive index of the core polymer. By distributing the dopant such that the dopant concentration is lowest at the centre of the core, the optical attenuation of the graded-index polymer optical fibre may be reduced. Also provided is a graded-index polymer optical fibre obtainable by the method.Type: GrantFiled: March 31, 2022Date of Patent: May 13, 2025Assignee: Microsoft Technology Licensing, LLCInventors: Paolo Costa, Gilberto Brambilla, Kai Shi, Hitesh Ballani, Richard James Baca
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Publication number: 20250052508Abstract: A plate heat exchanger includes a plurality of heat transfer plates, the plurality of heat transfer plates including: a first heat transfer plate, including protrusions protruding upward, the protrusions having a top; and a second heat transfer plate stacked on the first heat transfer plate, the second heat transfer plate includes recesses recessed downward, the recesses having a bottom. The tops of the protrusions have a concave portion which is sunken downward, and at least part of the bottoms of the recesses of the second heat transfer plate is disposed in the concave portion of the tops of the protrusions of the first heat transfer plate. It is thus possible to improve the weld quality of the heat exchanger.Type: ApplicationFiled: November 18, 2022Publication date: February 13, 2025Inventors: Kai SHI, Zhixuan AN, Zhifeng ZHANG
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Publication number: 20250037124Abstract: A method for extracting and parsing Bitcoin transaction autonomy information comprises data extraction, transaction autonomy information extraction, feature extraction, information decoding, information cleaning, information fusion, and data table construction. The method has the following beneficial effects. 1. Universality: This method is applicable to mainstream blockchain systems such as Ethereum, EOS, Polkadot, and Fabric through analysis of the current architecture of blockchain technology. 2. Effectiveness: Taking the relationship between emotional tendency of transaction autonomy information and price changes as an example, a generated dataset shows good performance in monitoring online public opinions. 3. Progressiveness: This method for extracting and parsing Bitcoin transaction autonomy information is helpful for implementing public opinion monitoring in blockchain systems, enhancing cybersecurity, and improving the level of information analysis.Type: ApplicationFiled: July 21, 2023Publication date: January 30, 2025Applicant: TIANJIN UNIVERSITY OF TECHNOLOGYInventors: Jinsong WANG, Zening ZHAO, Kai SHI
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Publication number: 20240317611Abstract: Disclosed is a desalination method of ion micro-nano sieving for agricultural water in the field of water purification. By constructing a desalting membrane with a composite water channel, through the identification of ion diameter and charge, with fluid dynamics and micro-nano flow theory, the targeted passage of water and salt is realized, and cations like sodium, calcium, magnesium, and anions like chlorine, sulfate, bicarbonate in saline-alkali water are effectively removed, which achieves forward hydrodynamic desalination.Type: ApplicationFiled: August 21, 2023Publication date: September 26, 2024Applicant: Zhejiang UniversityInventors: Jie ZHOU, Jianjiang WANG, Fengjun YANG, Jingquan YU, Zhenyu QI, Yanhong ZHOU, Kai SHI, Xiaojian XIA, Zhangjian HU
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Patent number: 12075335Abstract: This document describes methods, devices, systems, and means for a switching scheme for opting in and out of multi-user orthogonal frequency-division multiple access (MU-OFDMA). In one aspect, an electronic device enters the MU-OFDMA mode to communicate via a wireless network over a shared-channel bandwidth. During the MU-OFDMA mode, the electronic device determines that an uplink-queue size is greater than a first threshold size. Responsive to the determining, the electronic device opts out of the MU-OFDMA mode and enters a single-user mode to contend for a transmit channel for transmitting uplink data.Type: GrantFiled: July 10, 2023Date of Patent: August 27, 2024Assignee: Google LLCInventors: Ahmed Ibrahim ElArabawy, Ning Zhang, Kai Shi
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Publication number: 20240195511Abstract: A switching network for effecting point-to-point communication between nodes has a time-varying switching configuration, which causes successive activation and deactivation of multiple channels of the switching network, a first of the channels connecting, when activated, a transmitter node and a first receiver node, and a second of the channels connecting, when activated, the transmitter node and a second receiver node.Type: ApplicationFiled: December 28, 2023Publication date: June 13, 2024Inventors: Kai SHI, Paolo COSTA, Hitesh BALLANI, Istvan HALLER, Daniel Jonathan Finchley CLETHEROE, Sophie Gloria LANGE, Raphael Eric Alfred BEHRENDT, Foteini KARINOU, Krzysztof JOZWIK
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Patent number: 12002618Abstract: A transformer, including a first coil and a second coil. The first coil is magnetically coupled to the second coil. At least one of the first coil and the second coil includes a plurality of sub-coils, and the plurality of sub-coils include a first sub-coil and a second sub-coil. A first magnetic field formed by the first sub-coil passes through a layout plane of the transformer in a first manner, and a second magnetic field formed by the second sub-coil passes through the layout plane in a second manner. The first manner includes passing in from a first surface of the layout plane and passing out from a second surface of the layout plane, and the second manner includes passing in from the second surface and passing out from the first surface.Type: GrantFiled: June 15, 2020Date of Patent: June 4, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Kai Shi, Lei Lu
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Patent number: 11954842Abstract: The invention discloses a powder leakage monitoring device and a powder leakage monitoring method. The powder leakage monitoring device comprises light field camera, 3D PTZ (3-Dimensional Pan/Tilt/Zoom) and computer. Wherein, the light field camera records original light field images of monitored area; the 3D PTZ under the light field camera adjusts the shooting angle of the light field camera when it rotates according to the set direction; and the computer respectively connects to the light field camera and the 3D PTZ, which generates refocused images corresponding to the original light field images, and determines the spatial coordinates of the powder leakage point and the hazard range of the powder leakage in the monitored area according to the refocused images and the shooting angle. Therefore, the range and accuracy of powder leakage monitoring are both increased by using this invention.Type: GrantFiled: October 31, 2022Date of Patent: April 9, 2024Assignee: HUANENG NANJING JINLING POWER GENERATION CO., LTD.Inventors: Yudong Liu, Lei Wang, Kai Shi, Yong Xia, Xudong Si, Dongfang Li, Xuedong Liang
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Patent number: 11931977Abstract: A method of fabricating a multi-core polymer optical fibre comprises arranging optical fibre preforms in a stack, the optical fibre preforms each comprising a polymer core and polymer cladding surrounding the polymer core; and drawing and bonding the stack to form the multi-core polymer optical fibre. Any contaminants or impurities which collect on outer surfaces of the preforms may be confined to boundaries between the preforms, which may avoid attenuation of signals passed through the cores while at the same time reducing crosstalk between cores of the final manufactured fibre. Also provided is a multi-core polymer optical fibre obtainable by the method.Type: GrantFiled: March 31, 2022Date of Patent: March 19, 2024Assignee: Microsoft Technology Licensing, LLCInventors: Paolo Costa, Gilberto Brambilla, Kai Shi, Hitesh Ballani, Richard James Baca
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Patent number: 11901955Abstract: A switching network for effecting point-to-point communication between nodes has a time-varying switching configuration, which causes successive activation and deactivation of multiple channels of the switching network, a first of the channels connecting, when activated, a transmitter node and a first receiver node, and a second of the channels connecting, when activated, the transmitter node and a second receiver node.Type: GrantFiled: September 16, 2020Date of Patent: February 13, 2024Assignee: Microsoft Technology Licensing, LLC.Inventors: Kai Shi, Paolo Costa, Hitesh Ballani, Istvan Haller, Daniel Jonathan Finchley Cletheroe, Sophie Gloria Lange, Raphael Eric Alfred Behrendt, Foteini Karinou, Krzysztof Jozwik
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Publication number: 20230354094Abstract: This document describes methods, devices, systems, and means for a switching scheme for opting in and out of multi-user orthogonal frequency-division multiple access (MU-OFDMA). In one aspect, an electronic device enters the MU-OFDMA mode to communicate via a wireless network over a shared-channel bandwidth. During the MU-OFDMA mode, the electronic device determines that an uplink-queue size is greater than a first threshold size. Responsive to the determining, the electronic device opts out of the MU-OFDMA mode and enters a single-user mode to contend for a transmit channel for transmitting uplink data.Type: ApplicationFiled: July 10, 2023Publication date: November 2, 2023Applicant: Google LLCInventors: Ahmed Ibrahim ElArabawy, Ning Zhang, Kai Shi
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Patent number: 11791926Abstract: A system for interconnecting a plurality of computing nodes includes a plurality of optical circuit switches and a plurality of electrical circuit switches. A first network stage comprises a first plurality of circuit switches selected from among the plurality of optical circuit switches and the plurality of electrical circuit switches. Each computing node among the plurality of computing nodes is optically coupled to at least one of the first plurality of circuit switches. A second network stage comprises a second plurality of circuit switches selected from among the plurality of optical circuit switches and the plurality of electrical circuit switches. Each circuit switch among the first plurality of circuit switches is optically coupled to each circuit switch among the second plurality of optical circuit switches.Type: GrantFiled: December 22, 2022Date of Patent: October 17, 2023Assignee: Microsoft Technology Licensing, LLCInventors: Hitesh Ballani, Christian L. Belady, Lisa Ru-Feng Hsu, Winston Allen Saunders, Paolo Costa, Douglas M. Carmean, Kai Shi, Charles Boecker
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Patent number: 11791772Abstract: Example oscillators and oscillator-based apparatus are described. One example oscillator includes: a resonant circuit, configured to generate an oscillator signal; a first cross-coupled transistor, coupled to the resonant circuit; and a power supply circuit, configured to supply a power supply signal for the first cross-coupled transistor based on a first voltage and a second voltage, where the first voltage is a power supply voltage, and the second voltage is a voltage generated by an external sensing circuit. Because an oscillation frequency of the oscillator changes with the power supply signal of the oscillator, the oscillation frequency of the oscillator can be compensated by adjusting the power supply signal.Type: GrantFiled: October 1, 2021Date of Patent: October 17, 2023Assignee: Huawei Technologies Co., Ltd.Inventors: Kai Shi, Lei Lu