Patents by Inventor Junwei Liu

Junwei Liu 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).

  • Patent number: 12229662
    Abstract: An all-optical neural network that utilizes light beams and optical components to implement layers of the neural network is disclosed herein. The all-optical neural network includes an input layer, zero or more hidden layers, and an output layer. Each layer of the neural network is configured to simulate linear and nonlinear operations of a conventional artificial neural network neuron on an optical signal. In an embodiment, the optical linear operation is performed by a spatial light modulator and an optical lens. The optical lens performs a Fourier transformation on the set of light beams and sums light beams with similar propagation orientations. The optical nonlinear operation is implemented utilizing a nonlinear optical medium having an electromagnetically induced transparency characteristic whose transmission of a probe beam of light is controlled by the intermediate output of a coupling beam of light from the optical linear operation.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: February 18, 2025
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Shengwang Du, Junwei Liu, Ying Zuo, Bohan Li, Yujun Zhao, Yue Jiang, Peng Chen, You-Chiuan Chen
  • Publication number: 20240427122
    Abstract: Various embodiments include a tilt actuator and a spring suspension arrangement for use in a camera having a folded optics arrangement. In some embodiments, the folded optics arrangement may include a light path-folding element that is coupled with a carrier and that is tilted using the tilt actuator. The spring suspension arrangement may suspend the carrier and the light path-folding element from a base structure, and may allow motion of the light path-folding element enabled by the tilt actuator. The spring suspension arrangement may include one or more springs attached to the carrier and to the base structure. In some embodiments, the spring suspension arrangement may further include one or more suspension wires attached to the spring(s) and to a stationary structure of the camera.
    Type: Application
    Filed: September 9, 2024
    Publication date: December 26, 2024
    Applicant: Apple Inc.
    Inventors: Scott W. Miller, Alfred N. Mireault, Junwei Liu, Hao Zheng
  • Patent number: 12142643
    Abstract: A material structure for silicon-based gallium nitride microwave and millimeter-wave devices and a manufacturing method thereof are provided. The material structure includes: a silicon substrate; a dielectric layer of high thermal conductivity, disposed on an upper surface of the silicon substrate, and an uneven first patterned interface being formed between the dielectric layer and the silicon substrate; a buffer layer, disposed on an upper surface of the dielectric layer, and an uneven second patterned interface being formed between the buffer layer and the dielectric layer; a channel layer, disposed on an upper surface of the buffer layer; and a composite barrier layer, disposed on an upper surface of the channel layer. In the material structure, the uneven patterned interfaces increase contact areas of the interfaces, a thermal boundary resistance and a thermal resistance of device are reduced, and a heat dissipation performance of device is improved.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: November 12, 2024
    Assignee: Xidian University
    Inventors: Jincheng Zhang, Lu Hao, Zhihong Liu, Junwei Liu, Kunlu Song, Yachao Zhang, Weihang Zhang, Yue Hao
  • Publication number: 20240356374
    Abstract: A multifunctional charging circuit includes: a first inverter circuit connected to a primary side winding of an isolation transformer and configured to convert a received first direct current into a first alternating current, then outputting it to the primary side winding; a first wireless charging coil, with one end connected to a corresponding end of a secondary side winding of the isolation transformer, and designed to receive electrical power wirelessly transmitted by a second wireless charging coil; a first resonance compensation circuit connected to the other end of the first wireless charging coil and the corresponding end of the secondary side winding, and configured to generate a resonance based on the electrical power received by the first wireless charging coil and/or the first alternating current received by the secondary side winding, subsequently outputting a first charging current to the rectifier circuit.
    Type: Application
    Filed: April 19, 2024
    Publication date: October 24, 2024
    Inventors: Chi Shing WONG, Ka Hong LOO, Junwei LIU
  • Patent number: 12111452
    Abstract: Various embodiments include a tilt actuator and a spring suspension arrangement for use in a camera having a folded optics arrangement. In some embodiments, the folded optics arrangement may include a light path-folding element that is coupled with a carrier and that is tilted using the tilt actuator. The spring suspension arrangement may suspend the carrier and the light path-folding element from a base structure, and may allow motion of the light path-folding element enabled by the tilt actuator. The spring suspension arrangement may include one or more springs attached to the carrier and to the base structure. In some embodiments, the spring suspension arrangement may further include one or more suspension wires attached to the spring(s) and to a stationary structure of the camera.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: October 8, 2024
    Assignee: Apple, Inc.
    Inventors: Scott W. Miller, Alfred N. Mireault, Junwei Liu, Hao Zheng
  • Patent number: 12020925
    Abstract: A method for preparing an AlN based template having a Si substrate and a method for preparing a GaN based epitaxial structure having a Si substrate are provided. The method for preparing the AlN based template having the Si substrate, which includes: providing the Si substrate; growing an AlN nucleation layer on the Si substrate; and introducing an ion passing through the AlN nucleation layer and into the Si substrate. After the AlN nucleation layer is prepared on the Si substrate, the ions are introduced into the Si substrate and the AlN nucleation layer through the AlN nucleation layer. In this way, types of the introduced ions can be expanded. In addition, a carrier concentration at an interface between the Si substrate and the AlN nucleation layer and a carrier concentration in the AlN nucleation layer can also be reduced.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: June 25, 2024
    Assignee: Xidian University
    Inventors: Zhihong Liu, Junwei Liu, Jincheng Zhang, Lu Hao, Kunlu Song, Hong Zhou, Shenglei Zhao, Yachao Zhang, Weihang Zhang, Yue Hao
  • Patent number: 11885310
    Abstract: A cooling system and a wind power generating set. The cooling system comprises two cooling sub-systems thermally coupled to each other. Each cooling sub-system comprises: a first cooling circuit for cooling a first heat-generating component, a second cooling circuit for cooling a second heat-generating component, a third cooling circuit for cooling a third heat-generating component, a fourth cooling circuit for cooling a fourth heat-generating component, a pump station unit and a heat dissipation unit. The first cooling circuit and the fourth cooling circuit are connected in parallel to form a first branch, the second cooling circuit and the third cooling circuit are connected in parallel to form a second branch, and the first branch and the second branch are connected in parallel, and are connected to the pump station unit and the heat dissipation unit. The cooling system may achieve the fault-tolerant operation of two cooling sub-systems.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: January 30, 2024
    Assignee: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY CO., LTD.
    Inventors: Dinghui Wang, Jinmeng Li, Junwei Liu
  • Publication number: 20230349365
    Abstract: The cooling system comprises a first cooling circuit for cooling a first heating component, a second cooling circuit for cooling a second heating component, a third cooling circuit for cooling a third heating component, a fourth cooling circuit for cooling a fourth heating component, a pump station unit, and a heat dissipation unit; the pump station unitcomprises a pump group, a water separator, and a water collector, a water supply main is between the pump group and the water separator, and a water return main is between the pump group and the water collector; the pump group provides a cooling medium for the first, second, third, and fourth cooling circuits via the water separator; the first cooling circuitis directly communicated with the water separator and the water collector; and the second third and fourth cooling circuit are communicat with the water collector via the heat dissipation unit respectively.
    Type: Application
    Filed: September 8, 2020
    Publication date: November 2, 2023
    Inventors: Dinghui WANG, Junwei LIU, Si GAO
  • Patent number: 11773561
    Abstract: Provided is a combined suction anchor reinforced by a grouting spiral anchor, including a gravity suction anchor, an L-shaped skirt board and a spiral anchor. The gravity suction anchor includes a suction anchor top plate and a wall of a suction anchor barrel body and uses a concrete press block to reach an estimated set position faster during penetration due to self-weight thereof. Thereafter, the skirt board is lifted to outside of the suction anchor through a lug, and a fixing bolt is used to connect the skirt board to the suction anchor. The spiral anchor rod passes through a skirt board hole performed in the skirt board to penetrate into a deep site of seabed, and concrete is grouted through the skirt board hole to a seabed soil area loosened due to penetration of the spiral anchor rod, thereby forming a concrete reinforced area after the concrete solidifies.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: October 3, 2023
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Junwei Liu, Shengjie Rui, Haojie Zhang, Yujie Li, Yuzhe Dou
  • Patent number: 11770050
    Abstract: The present application discloses a heat exchange system and a motor. The heat exchange system includes: a first heat exchange unit disposed in a to-be-cooled area of the motor for heat exchange, the first heat exchange unit including a plurality of first heat exchange branches connected in parallel; a second heat exchange unit disposed outside the motor, and being connected to the first heat exchange unit through a pipeline assembly to form a closed heat exchange loop. Each first heat exchange branch is connected with a first heat exchanger, a first valve group, and a first pressure information component, and the opening and closing of the first valve group is controlled according to the first pressure information of the first pressure information component.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: September 26, 2023
    Assignee: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY CO., LTD.
    Inventors: Dinghui Wang, Jinhui Li, Junwei Liu
  • Patent number: 11731314
    Abstract: A fiber pre-dispersing device for fiber reinforced concrete, comprising: a dispersing chamber, a feed inlet is installed on the upper side of a dispersing chamber, a hopper is installed in the feed inlet, a first dispersing device is installed in the dispersing chamber, a discharge outlet is installed at the bottom of the dispersing chamber, and connected with a second dispersing device, grooves are arranged at both sides of dispersing chamber, supporting legs are installed in the grooves.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: August 22, 2023
    Assignee: QINGDAO UNIVERSITY OF TECHNOLOGY
    Inventors: Jianqiang Chen, Yutian Wang, Wei Zhou, Enbo Fan, Taiyan Liu, Lingbo Meng, Xun Wang, Zhen Xu, Junwei Liu, Xiaoyu Bai
  • Patent number: D1014482
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: February 13, 2024
    Assignee: SHENZHEN ILLUSDESIGN CREATIVE CO., LTD.
    Inventors: Yaohua Xie, Junwei Liu, Xinyu Chen
  • Patent number: D1017592
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: March 12, 2024
    Assignee: SHENZHEN ILLUSDESIGN CREATIVE CO., LTD.
    Inventors: Guojun Jiang, Junwei Liu, Yaohua Xie
  • Patent number: D1025906
    Type: Grant
    Filed: December 29, 2022
    Date of Patent: May 7, 2024
    Inventors: Junwei Liu, Yaohua Xie, Meixia Lan, Weize Xu
  • Patent number: D1025907
    Type: Grant
    Filed: December 29, 2022
    Date of Patent: May 7, 2024
    Inventors: Junwei Liu, Yaohua Xie, Weize Xu, Meixia Lan
  • Patent number: D1033358
    Type: Grant
    Filed: April 14, 2023
    Date of Patent: July 2, 2024
    Inventor: Junwei Liu
  • Patent number: D1034568
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: July 9, 2024
    Inventors: Yaohua Xie, Junwei Liu, Guojun Jiang, Qianting Yang
  • Patent number: D1034569
    Type: Grant
    Filed: December 29, 2022
    Date of Patent: July 9, 2024
    Inventors: Junwei Liu, Yaohua Xie, Guojun Jiang
  • Patent number: D1062711
    Type: Grant
    Filed: January 11, 2024
    Date of Patent: February 18, 2025
    Inventors: Junwei Liu, Yaohua Xie
  • Patent number: D1062712
    Type: Grant
    Filed: January 11, 2024
    Date of Patent: February 18, 2025
    Inventors: Junwei Liu, Yaohua Xie