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).

  • Publication number: 20230322687
    Abstract: Provided are a salt of an arylaminoquinazoline-containing compound as shown in formula 2, a solvate or hydrate thereof, a preparation method therefor and the use thereof. The prepared salt has good crystallinity, and compared to a compound in a free form, the water solubility is significantly improved, and preferably, the salt form and crystal form can stably exist. Therefore, compared to a compound in a free form or other salts, the salt has better druggability.
    Type: Application
    Filed: September 24, 2021
    Publication date: October 12, 2023
    Inventors: Fugang ZHOU, Yuxia HE, Yan ZHANG, Jian LYU, Kai SHI, Huifeng DI, Xinxin YANG, Jing SUN
  • Publication number: 20230314695
    Abstract: A multi-core optical fibre comprises a plurality of cores embedded in cladding. The cladding comprises a polymer. The cladding has an outer cross-sectional shape with an order of rotational symmetry of less than or equal to 4. By limiting the rotational symmetry of the multi-core optical fibre, rotational alignment of the cores with light sources/light detectors may be made easier. Also provided are optical cables and kits including the multi-core optical fibre, and a method of fabricating a multi-core polymer optical fibre.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Inventors: Paolo COSTA, Gilberto BRAMBILLA, Kai SHI, Hitesh BALLANI, Richard James BACA
  • Publication number: 20230311438
    Abstract: 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: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Inventors: Paolo COSTA, Gilberto BRAMBILLA, Kai SHI, Hitesh BALLANI, Richard James BACA
  • Publication number: 20230314696
    Abstract: 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: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Inventors: Paolo COSTA, Gilberto BRAMBILLA, Kai SHI, Hitesh BALLANI, Richard James BACA
  • Patent number: 11743765
    Abstract: 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: Grant
    Filed: March 31, 2022
    Date of Patent: August 29, 2023
    Assignee: Google LLC
    Inventors: Ahmed Ibrahim ElArabawy, Ning Zhang, Kai Shi
  • Publication number: 20230199560
    Abstract: This document describes improvements in management of data traffic of user equipment between cellular and non-cellular accesses in fifth generation new radio, 5G NR, wireless networks. An energy-aware traffic manager is introduced to manage data traffic communicated by the user equipment over the cellular access and the non-cellular access, such as a wireless local area network, WLAN. The energy-aware traffic manager enables reporting of energy-related information by user equipment, energy-aware traffic management modes for the user equipment, and access management in response to critical events related to user equipment energy, as well as reporting of changes in the user equipment access management or access management modality to core network entities.
    Type: Application
    Filed: May 14, 2021
    Publication date: June 22, 2023
    Applicant: Google LLC
    Inventors: Pavan Santhana Krishna Nuggehalli, Jibing Wang, Ning Zhang, Mingguang Xu, Kai Shi
  • Publication number: 20230125673
    Abstract: 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: Application
    Filed: December 22, 2022
    Publication date: April 27, 2023
    Inventors: Hitesh BALLANI, Christian L. BELADY, Lisa Ru-Feng HSU, Winston Allen SAUNDERS, Paolo COSTA, Douglas M. CARMEAN, Kai SHI, Charles BOECKER
  • Publication number: 20230069945
    Abstract: The invention discloses a powder leakage monitoring device and a powder leakage monitoring method. The powder leakage monitoring device comprises a light field camera, a 3D PTZ and a computer. Wherein, the light field camera records the original light field images of the 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: Application
    Filed: October 31, 2022
    Publication date: March 9, 2023
    Inventors: Yudong Liu, Lei Wang, Kai Shi, Yong Xia, Xudong Si, Dongfang Li, Xuedong Liang
  • Patent number: 11560882
    Abstract: A plunger pump includes a plunger pump tappet assembly and a roller. The roller includes a revolving body configured to revolve along a central axis. The revolving body includes logarithmic parts and a straight part which are integrally formed. The logarithmic parts are symmetrically provided at two ends of the straight part in an axial direction of the central axis. In a cross section of the revolving body along and through the central axis, an outline of the straight part forms a straight line, and an outline of the logarithmic part forms a logarithmic curve, with an X-axis lying along the central axis, and a perpendicular bisector of the X-axis as a Y-axis.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: January 24, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Kai Shi, Wei Zhang
  • Patent number: 11539453
    Abstract: 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: Grant
    Filed: February 10, 2021
    Date of Patent: December 27, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Hitesh Ballani, Christian L. Belady, Lisa Ru-Feng Hsu, Winston Allen Saunders, Paolo Costa, Douglas M. Carmean, Kai Shi, Charles Boecker
  • Publication number: 20220345226
    Abstract: 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: Application
    Filed: September 16, 2020
    Publication date: October 27, 2022
    Inventors: Kai SHI, Paolo COSTA, Hitesh BALLANI, Istvan HALLER, Daniel Jonathan Finchley CLETHEROE, Sophie Gloria LANGE, Raphael Eric Alfred BEHRENDT, Foteini KARINOU, Krzysztof JOZWIK
  • Publication number: 20220225162
    Abstract: 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: Application
    Filed: March 31, 2022
    Publication date: July 14, 2022
    Applicant: Google LLC
    Inventors: Ahmed Ibrahim ElArabawy, Ning Zhang, Kai Shi
  • Publication number: 20220159558
    Abstract: Techniques are described for using a dedicated-scan radio to improve scanning and other radio operations performed during wireless communications. The techniques include configuring a dedicated-scan radio to collect and cache scan results without interfering with ongoing wireless communication tasks performed using primary radios. Based on the scan results cached by the dedicated-scan radio, the computing device improves other radio operations in furtherance of wireless communications. Cached scan results enable a primary radio to avoid, or to focus on, scanning certain channels or frequencies during discovering, positioning, or roaming operations. By using the dedicated-scan results as a starting point or seed for functions performed by a primary radio, the computing device may more quickly and more efficiently perform radio functions, minimizing latency to ongoing wireless communications.
    Type: Application
    Filed: September 11, 2019
    Publication date: May 19, 2022
    Applicant: Google LLC
    Inventors: Ning Zhang, Ahmed Ibrahim ElArabawy, Kai Shi
  • Publication number: 20220140934
    Abstract: 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: Application
    Filed: February 10, 2021
    Publication date: May 5, 2022
    Inventors: Hitesh BALLANI, Christian L. BELADY, Lisa Ru-Feng HSU, Winston Allen SAUNDERS, Paolo COSTA, Douglas M. CARMEAN, Kai SHI, Charles BOECKER
  • Patent number: 11310693
    Abstract: 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: Grant
    Filed: December 13, 2019
    Date of Patent: April 19, 2022
    Assignee: Google LLC
    Inventors: Ahmed Ibrahim ElArabawy, Ning Zhang, Kai Shi
  • Publication number: 20220065235
    Abstract: A plunger pump includes a plunger pump tappet assembly and a roller. The roller includes a revolving body configured to revolve along a central axis. The revolving body includes logarithmic parts and a straight part which are integrally formed. The logarithmic parts are symmetrically provided at two ends of the straight part in an axial direction of the central axis. In a cross section of the revolving body along and through the central axis, an outline of the straight part forms a straight line, and an outline of the logarithmic part forms a logarithmic curve, with an X-axis lying along the central axis, and a perpendicular bisector of the X-axis as a Y-axis.
    Type: Application
    Filed: August 5, 2021
    Publication date: March 3, 2022
    Inventors: Kai Shi, Wei Zhang
  • Patent number: 11254788
    Abstract: A mechanical ball-milling method for preparing a polydopamine-modified montmorillonite nanomaterial is disclosed. The method includes dispersing a montmorillonite material in an aqueous solution, stirring, concentrating and collecting a concentrated montmorillonite solution for use; adding dopamine hydrochloride to a buffer solution to prepare a dopamine hydrochloride solution, with a concentration of 0.2-1 g/mL, and adjusting the pH value of the dopamine hydrochloride solution; and adding the dopamine hydrochloride solution and the concentrated montmorillonite solution simultaneously into a ball mill jar to form a mixture, and then subjecting the mixture to a ball milling for 0.3-6 hours, pouring the mixture out of the ball mill jar, and subjecting to a solid-liquid separation by a centrifugation, and then washing a solid product with deionized water for 3-6 times, and removing water from the solid product, to obtain the polydopamine-modified montmorillonite nanomaterial.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: February 22, 2022
    Assignee: Changsha University of Science & Technology
    Inventors: Bo Liang, Kai Shi, Jianlong Zheng
  • Publication number: 20220029584
    Abstract: 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: Application
    Filed: October 1, 2021
    Publication date: January 27, 2022
    Inventors: Kai SHI, Lei LU
  • Patent number: 11098049
    Abstract: The disclosure discloses a synthetic method for benzimidazo[1,2-c]quinazolin-6-ones and belongs to the field of organic synthesis. In the disclosure, an ?-ketoamide compound shown as Formula I and an o-phenylenediamine compound shown as Formula II are used as substrates and undergo a reaction under the action of a catalyst and a base to obtain benzimidazo[1,2-c]quinazolin-6-ones shown as Formula III. In the disclosure, benzimidazo[1,2-c]quinazolin-6-ones are prepared based on a novel and efficient action mechanism, and the disclosure has the advantages that the raw materials are cheap, the catalyst is cheap and easy to obtain, the reaction is efficient and environmentally friendly, the substrate range is wide, the yield is high, and the operation is simple.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: August 24, 2021
    Assignee: JIANGNAN UNIVERSITY
    Inventors: Lianghua Zou, Fei Ren, Biao Liu, Kai Shi, Cheng Yan, Shuai Zhu, Hao Zhu, Yuhao Cheng, Zhekang Jia
  • Publication number: 20210177520
    Abstract: A calibration device for surgical instruments includes a base, an instrument holder and at least one reference frame marker, the instrument holder is pivotally mounted on the base, and the reference frame marker is mounted on the base. The surgical instrument can be inserted into an insertion hole of the instrument holder to rotate or swing selectively on the base such that a signal processor of a surgical navigation system can receive coordinate signals from the reference frame marker and at least one coordinate marker mounted on the surgical instrument to calibrate the surgical instrument.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 17, 2021
    Inventors: Ming-Hui Chen, Kai-Shi Luo