Patents by Inventor Kai Han

Kai Han 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: 11243408
    Abstract: A speckle reduction system is provided and includes a speckle reduction component and a control module. The speckle reduction component includes electrode layers and a liquid crystal layer. The liquid crystal layer is disposed between the electrode layers and configured to receive light from a coherent light source. The control module is configured to (i) supply a first voltage signal having a first voltage to the electrode layers to provide a first speckle pattern output, and (ii) supply a second voltage signal having a second voltage to the electrode layers to provide a second speckle pattern output, wherein the first voltage and the second voltage are greater than zero. The control module is configured to transition between providing the first voltage signal and the second voltage signal in less than at least one of half an integration time of a human eye or 8 milliseconds.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: February 8, 2022
    Assignees: GM GLOBAL TECHNOLOGY OPERATIONS LLC, KENT STATE UNIVERSITY
    Inventors: John Ernest Harden, Jr., Liang-Chy Chien, Kai-Han Chang, Thomas A. Seder
  • Patent number: 11231468
    Abstract: Inspection apparatus is provided for inspecting a first electronic device and a second electronic device. The inspection apparatus includes a first signal transfer unit, a second signal transfer unit, a first signal output unit and a second signal output unit. The first signal transfer unit is adapted to receive a first input signal. The second signal transfer unit is adapted to receive a second input signal. The first signal output unit is selectively coupled to the first signal transfer unit or the second signal transfer unit to output a first output signal to inspect the first electronic device. The second signal output unit is selectively coupled to the first signal transfer unit or the second signal transfer unit to output a second output signal to inspect the second electronic device. The inspection apparatus can realize automatic inspection.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: January 25, 2022
    Assignee: WISTRON CORP.
    Inventors: Chung Kai Han, Yu Shan Huang, Po-Chuan Ku, Chun Yen Tsai
  • Publication number: 20220019855
    Abstract: The present application discloses an image generation method, a neural network compression method, and a related apparatus and device in the field of artificial intelligence. The image generation method includes: inputting a first matrix into an initial image generator to obtain a generated image; inputting the generated image into a preset discriminator to obtain a determining result, where the preset discriminator is obtained through training based on a real image and a category corresponding to the real image; updating the initial image generator based on the determining result to obtain a target image generator; and further inputting a second matrix into the target image generator to obtain a sample image. Further, a neural network compression method is disclosed, to compress the preset discriminator based on the sample image obtained by using the foregoing image generation method.
    Type: Application
    Filed: September 29, 2021
    Publication date: January 20, 2022
    Inventors: Hanting CHEN, Yunhe WANG, Chuanjian LIU, Kai HAN, Chunjing XU
  • Publication number: 20220014083
    Abstract: A coil assembly includes coil units connected to a coil base. Each coil unit includes top, intermediate and bottom coil modules, each of which has spaced-apart first and second interaction sides, and two non-interaction sides connected to the first and second interaction sides to form an accommodating space. The first interaction sides of the intermediate and bottom coil modules are juxtaposed with each other in the accommodating space of the top coil module. The second interaction sides of the top and intermediate coil modules are juxtaposed with each other in the accommodating space of the bottom coil module. An ironless motor includes a magnetic rail assembly and the aforesaid coil assembly.
    Type: Application
    Filed: November 4, 2020
    Publication date: January 13, 2022
    Inventors: KUN-CHENG TSENG, KUEI-TUN TENG, KAI-HAN TENG
  • Patent number: 11221538
    Abstract: Liquid crystal lenses of different apertures with suppressed chromatic aberration utilizing twisted vertical alignment configuration are demonstrated. A plurality of substrates are provided with electrodes, including a patterned electrode to generate a lens effect. The liquid crystal material is homeotropically aligned, such as via alignment layers. Setting the ratio between cell thickness and chiral pitch of the cholesteric liquid crystals provides correction of axial chromatic aberrations of electrically-tunable focal lengths in the device.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: January 11, 2022
    Assignee: KENT STATE UNIVERSITY
    Inventors: Liang-Chy Chien, Kai-Han Chang, Andrii Varanytsia
  • Publication number: 20210347112
    Abstract: The present disclosure provides a composite material layer including a core layer and a shell layer. The core layer includes foamed elastomers. The shell layer encapsulates the core layer and continuously covered surfaces of the foamed elastomers, wherein the shell layer includes a material having light absorption. The melting point of the core layer is higher than the melting point of the shell layer.
    Type: Application
    Filed: May 7, 2021
    Publication date: November 11, 2021
    Applicant: National Taipei University of Technology
    Inventors: Cherng-Yuh Su, Kai-Han Su, Chung-Chieh Chang, Yung-En Liao, Deng-Nan Jhang, Jia-Long Hu
  • Publication number: 20210335814
    Abstract: A plurality of holes are formed extending vertically in a first dielectric deck that includes interleaved a plurality of first sacrificial layers and a plurality of first dielectric layers over a substrate. A plurality of sacrificial structures are formed in the holes. A second dielectric deck is formed having interleaved a plurality of second sacrificial layers and a plurality of second dielectric layers over the first dielectric deck. A slit opening is formed extending in the second dielectric deck, the slit opening aligned with and over the sacrificial source contact structures. The sacrificial structures are removed through the slit openings such that the slit opening is in contact with the holes to form a slit structure. A plurality of conductor layers are formed in the first and second dielectric decks through the slit structure, forming a memory stack. A source contact structure is formed in the slit structure.
    Type: Application
    Filed: July 1, 2021
    Publication date: October 28, 2021
    Inventors: Lu Zhang, Zhipeng Wu, Bo Xu, Kai Han, Chuan Yang, Zi Yin, Liuqun Xie
  • Publication number: 20210312261
    Abstract: The present application discloses a neural network search method in the field of artificial intelligence, and the neural network search method includes: obtaining a feature tensor of each of a plurality of neural networks, where the feature tensor of each neural network is used to represent a computing capability of the neural network; inputting the feature tensor of each of the plurality of neural networks into an accuracy prediction model for calculation, to obtain accuracy of each neural network, where the accuracy prediction model is obtained through training based on a ranking-based loss function; and determining a neural network corresponding to the maximum accuracy as a target neural network. Embodiments of the present invention help improve accuracy of a network structure found through search.
    Type: Application
    Filed: April 1, 2021
    Publication date: October 7, 2021
    Inventors: Yixing XU, Kai HAN, Yunhe WANG, Chunjing XU, Qi TIAN
  • Publication number: 20210309765
    Abstract: A polyhydroxyl-containing polymer has good biocompatibility, strong binding performance with substances the same surface of which contains oxygen, nitrogen, and so on and that easily form hydrogen bonds. A solution formed by the polymer adheres poorly to an intubation microcatheter, but adheres strongly to blood vessels, skin, and glass, and may be used as a vascular embolization agent.
    Type: Application
    Filed: September 5, 2019
    Publication date: October 7, 2021
    Inventors: Junming DAI, Jianchun YANG, Dongmei YANG, Kai HAN, Rongxin ZHU
  • Publication number: 20210283564
    Abstract: In a catalytic reaction, after a reaction product leaves a catalyst bed, an inert substance with a low temperature is sprayed, and through heat absorption and vaporization processes of the inert substance, the temperature of the reaction product drops rapidly when staying in a catalyst cushion layer at a discharge end of a fixed bed reactor, or in a space formed by the catalyst cushion layer at the discharge end of the fixed bed reactor and a reactor head, or in a space formed by a tube plate at the discharge end of the fixed bed reactor and the reactor head. The residence time of the reaction product is shortened due to the entrance of the inert substance in a gaseous state.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 16, 2021
    Inventors: Jianchun YANG, Kai HAN, Dongmei YANG
  • Patent number: 11106044
    Abstract: An alignment system for a HUD is provided and includes a mirror, a mirror actuator, first and second light sources, an optic assembly, and a control module. The mirror actuator adjusts mirror orientation. The first light source generates a first light beam. The mirror directs the first light beam from the HUD to a combiner to generate a virtual image. The second light source generates a second light beam. The optic assembly directs the second light beam to the combiner to generate a fiducial. The control module: performs an alignment process including, based on received inputs, controlling the mirror actuator to adjust mirror orientation to adjust a position of the virtual image and align a portion of the virtual image, the fiducial and an eye of a viewer; determines a height of the eye based on a mirror angle; and displays another virtual image based on the height.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: August 31, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Thomas A. Seder, Kai-Han Chang, Leslie G. Ferris, Omer Tsimhoni
  • Patent number: 11097803
    Abstract: A shock absorbing and height adjusting structure includes an inner tube, a lower piston assembly and an upper piston assembly. The inner tube includes an upper end, a lower end opposite to the upper end, and an inner space for accommodating a gas. The lower piston assembly includes a lower piston movably inserted into the inner tube, and a lower passage disposed at the lower piston. The upper piston assembly includes an upper piston movably inserted into the inner tube. When the lower passage is opened, the lower piston is moved relative to the lower end, and when the upper piston is forced, the upper piston has movement relative to the upper end toward the lower end to compress the gas.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: August 24, 2021
    Inventor: Kai-Han Cho
  • Publication number: 20210239485
    Abstract: A method of vehicle navigation using terrain text recognition includes receiving, via an electronic controller arranged on a vehicle and having access to a map of the terrain, a navigation route through the terrain. The method also includes receiving, via the controller, a signal from a global positioning system (GPS) to determine a current position of the vehicle relative to the terrain. The method additionally includes determining, via the controller, a location of a next waypoint on the navigation route and relative to the current vehicle position. The method also includes detecting and communicating to the controller, via a vehicle sensor an image frame displaying a text indicative of the next waypoint and correlating, via the controller, the detected text to the next waypoint on the map. Furthermore, the method includes setting, via the controller, an in-vehicle alert indicative of the detected text having been correlated to the next waypoint.
    Type: Application
    Filed: February 5, 2020
    Publication date: August 5, 2021
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Farui Peng, Kai-Han Chang, Wei Tong
  • Publication number: 20210239996
    Abstract: A speckle reduction system is provided and includes a speckle reduction component and a control module. The speckle reduction component includes electrode layers and a liquid crystal layer. The liquid crystal layer is disposed between the electrode layers and configured to receive light from a coherent light source. The control module is configured to (i) supply a first voltage signal having a first voltage to the electrode layers to provide a first speckle pattern output, and (ii) supply a second voltage signal having a second voltage to the electrode layers to provide a second speckle pattern output, wherein the first voltage and the second voltage are greater than zero. The control module is configured to transition between providing the first voltage signal and the second voltage signal in less than at least one of half an integration time of a human eye or 8 milliseconds.
    Type: Application
    Filed: February 5, 2020
    Publication date: August 5, 2021
    Inventors: John Ernest HARDEN, JR., Liang-Chy CHIEN, Kai-Han CHANG, Thomas A. SEDER
  • Publication number: 20210225862
    Abstract: Embodiments of structure and methods for forming a memory device are provided. In an example, a memory device includes a substrate, a stack above the substrate, a channel structure, and a source contact structure each extending vertically through the memory stack. The source contact structure includes (i) a plurality of first source contact portions each extending vertically and laterally separated from one another and (ii) a second source contact portion extending vertically over and in contact with the plurality of first source contact portions, the second source contact portion being laterally continuous.
    Type: Application
    Filed: April 29, 2020
    Publication date: July 22, 2021
    Inventors: Lu Zhang, Zhipeng Wu, Bo Xu, Kai Han, Chuan Yang, Zi Yin, Liuqun Xie
  • Publication number: 20210212267
    Abstract: A horticultural lighting device for sustaining indoor plant growth, wherein said horticultural lighting device comprises lighting unit arranged for providing illumination in accordance with one of a plurality of modi, wherein, for each modus, said lighting unit is arranged for differentiating in different growth stages of a plant by illuminating in different electromagnetic spectrums, a power unit arranged for receiving an Alternating Current, AC, mains supply voltage and for providing power to said lighting unit, and a control unit arranged for detecting interruptions in said received AC mains supply voltage and for cycling through said plurality of modi for said lighting unit triggered by detected interruptions.
    Type: Application
    Filed: May 20, 2019
    Publication date: July 15, 2021
    Inventors: DONALD BOUTON ELLINGHAM, Jr., JAMES M. GAINES, KAI HAN, CHUAN YUAN, YUEFENG ZHANG
  • Publication number: 20210199313
    Abstract: The present disclosure provides a heat recovery device and an air conditioning system. The heat recovery device includes: a shell, provided with an indoor air return port, a first outdoor air inlet and an air outlet; a fresh air heat recovery assembly, disposed in the shell, the fresh air heat recovery assembly including a first heat exchange passage and a second heat exchange passage exchanging heat with each other; and an air valve assembly, disposed in the shell, and located between the fresh air heat recovery assembly and the indoor air return port, the air valve assembly having a first position and a second position.
    Type: Application
    Filed: September 30, 2020
    Publication date: July 1, 2021
    Inventors: Yunshui CHEN, Xuming FANG, Kai HAN, Yaguo MA
  • Publication number: 20210199315
    Abstract: Some embodiments of the present disclosure provide an air conditioning system. The air conditioning system includes: a housing, having an indoor air supply port; a first heat exchanger, disposed in the housing, an air outlet of the first heat exchanger being communicated with the indoor air supply port; a first air supply mechanism, disposed in the housing, an air outlet of the first air supply mechanism being provided correspondingly to an air inlet of the first heat exchanger; and a plurality of replaceable assemblies, wherein each of the plurality of replaceable assemblies can be assembled in the housing, and the housing is selectively cooperated with one or more of the plurality of replaceable assemblies.
    Type: Application
    Filed: September 30, 2020
    Publication date: July 1, 2021
    Inventors: Yunshui CHEN, Xuming FANG, Kai HAN, Yaguo MA
  • Publication number: 20210181522
    Abstract: An optical display device includes a coherent light source generating a coherent light beam in visible, ultraviolet, or infrared ranges. The coherent light beam is directed at a liquid crystal component. A plurality of liquid crystals and a plurality of nanoparticles having an average diameter of ?about 450 nm are disposed in an interior compartment. An electrical source is in electrical communication with the first and the second electrodes. When no voltage or current is applied, a filtered light beam transmitted or reflected from the liquid crystal component exhibits a first speckle contrast ?about 0.28. When voltage or current is applied, the microparticles are induced to move and the filtered light beam has a second speckle contrast that is ?about 0.2 and in certain aspects may be ?about 0.03. A method of reducing speckle in an optical device having a coherent light source is also provided.
    Type: Application
    Filed: December 11, 2019
    Publication date: June 17, 2021
    Inventors: Kai-Han CHANG, John HARDEN, Liang-Chy CHIEN
  • Publication number: 20210170482
    Abstract: A method for manufacturing a metal object having a solid lubricating surface layer includes: providing a metal blank having a surface; providing a plurality of microparticles and solid lubricating powder, and mixing them together, wherein the microparticles have a hardness greater than that of the surface; and projecting the microparticles and the solid lubricating powder onto the surface, wherein the microparticles cause plastic flow on the surface to form a compressive stress layer, and the solid lubricating powder adheres to the compressive stress layer to form a solid lubricating surface layer.
    Type: Application
    Filed: November 30, 2020
    Publication date: June 10, 2021
    Inventors: TSENG-JEN CHENG, KAI-HAN CHEN, FU-CHUAN HSU, CHIH-HAO LIN