Patents by Inventor Heng Liu

Heng 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: 11587782
    Abstract: A method for fabricating a semiconductor arrangement is provided. The method includes forming a first dielectric layer and forming a first semiconductive layer over the first dielectric layer. The first semiconductive layer is patterned to form a patterned first semiconductive layer. The first dielectric layer is patterned using the patterned first semiconductive layer to form a patterned first dielectric layer. A second semiconductive layer is formed over the patterned first dielectric layer and the patterned first semiconductive layer.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: February 21, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITED
    Inventors: Yi-Shan Chen, Hao-Heng Liu
  • Publication number: 20230051340
    Abstract: The present disclosure discloses methods and systems for removing dross from a liquid metal chamber, such as would be used in magnetohydrodynamic (MHD) or metal 3D printing. The method and systems comprise inserting a dross removal tool into a liquid metal chamber. A seal is compromised, fluidically connecting an evacuated volume and the liquid metal chamber. Pressure equalizes between the fluidically coupled volumes through an inflow of gas, liquid, and solid components from the liquid metal chamber into the dross removal tool. The dross removal tool is removed from the liquid metal chamber.
    Type: Application
    Filed: August 12, 2021
    Publication date: February 16, 2023
    Applicant: XEROX CORPORATION
    Inventors: Chu-Heng Liu, Jason M. Lefevre, Joseph C. Sheflin, Seemit Praharaj, Douglas K. Herrmann, David A. Vankouwenberg, Linn C. Hoover
  • Patent number: 11577503
    Abstract: A drag force sensor on a fountain solution carrier roller surface measures drag force of a fountain solution layer on the fountain solution carrier roller surface in real-time during a printing operation. The measured drag force is used in a feedback loop to actively control the fountain solution layer thickness by adjusting the volumetric feed rate of fountain solution added onto the imaging member surface during a printing operation to reach a desired uniform thickness for the printing. This fountain solution monitoring system may be fully automated.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: February 14, 2023
    Assignee: Xerox Corporation
    Inventors: Jack T. Lestrange, Joseph C. Sheflin, Palghat S. Ramesh, Anthony S. Condello, Brian M. Balthasar, Seemit Praharaj, Chu-heng Liu, Paul J. Mcconville, Douglas K. Herrmann, Jason M. Lefevre
  • Publication number: 20230037539
    Abstract: A three-dimensional (3D) metal object manufacturing apparatus is equipped with two solid metal moving mechanisms that are independently operated to move two different metals into the receptacle of a vessel in a melted metal drop ejecting apparatus. The ejector is operated to form object features with melted metal drops of one of the two different metals and to form support features with melted metal drops of the other of the two different metals. The thermal expansion coefficients of the two metals are sufficiently different that the support features easily separate from the object features after the object and support features cool.
    Type: Application
    Filed: August 3, 2021
    Publication date: February 9, 2023
    Inventors: Seemit Praharaj, Douglas K. Herrmann, Thomas J. Wyble, Jason M. LeFevre, Chu-Heng Liu, Paul J. McConville
  • Publication number: 20230034213
    Abstract: A three-dimensional (3D) metal object manufacturing apparatus is equipped with a vessel having a receptacle that holds melted metal. The vessel has a divider that prevents metal dross formed at a solid metal inlet of the receptacle to migrate to a portion of the receptacle where a melted metal level sensor directs light.
    Type: Application
    Filed: August 2, 2021
    Publication date: February 2, 2023
    Inventors: Jason M. LeFevre, Douglas K. Herrmann, Chu-Heng Liu, Seemit Praharaj, David A. VanKouwenberg, Linn C. Hoover
  • Patent number: 11565475
    Abstract: A method operates a three-dimensional (3D) metal object manufacturing system to compensate for errors that occur during object formation. In the method, thermal image data and dimensional image data of a metal object being formed by the 3D metal object manufacturing system is generated prior to completion of the metal object. Thermal conditions are identified from these data and compared to predetermined ranges corresponding to the identified thermal conditions to identify one or more errors. For identified errors outside a corresponding predetermined difference range, the method performs an error compensation technique. The error compensation includes modification of a surface data model, modification of machine-ready instructions, or operation of a subtractive device.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: January 31, 2023
    Assignee: Xerox Corporation
    Inventors: David A. Mantell, Christopher T. Chungbin, Chu-Heng Liu, Scott J. Vader, Zachary S. Vader, Viktor Sukhotskiy, Denis Cormier, Kareem Tawil
  • Patent number: 11565516
    Abstract: According to aspects of the embodiments, there is provided a method of measuring the amount of fountain solution employed in a digital offset lithography printing system. Fountain solution thickness is measured by using phase shifted monochromic light to produce optical path differences through the fountain solution film. The intensity of the reflected light through the fountain solution film is very sensitive due to the phase shifted light so interference fringes are easier to delineate and fountain solution thickness measurement more reliable.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: January 31, 2023
    Assignee: Xerox Corporation
    Inventors: Paul J. McConville, Chu-heng Liu, Jason M. LeFevre, Seemit Praharaj, Douglas K. Herrmann
  • Publication number: 20230028044
    Abstract: The exemplary embodiments disclose a method, a computer program product, and a computer system for managing environment change. The exemplary embodiments may include determining a plurality of change and risk models for a plurality of computing environments, generating a plurality of association rules based on the plurality of change and risk models, and generating a joint association rule by combining at least two of the plurality of association rules, wherein the joint association rule indicates, from the three dimensions, an association relationship between changes and risk events over at least a part of the time series.
    Type: Application
    Filed: July 23, 2021
    Publication date: January 26, 2023
    Inventors: Chen Luo, Fu FW Wang, Shi Jie Zhang, Lei Gao, Sun Bing, Meng Ru Hou, Yu Heng Liu
  • Patent number: 11561719
    Abstract: A flash memory control method, a flash memory storage device and a flash memory controller are provided. The method includes the following. A flash memory module is instructed to perform a data merge operation to copy first data in a first physical unit into at least one second physical unit. After the first data is copied and before the first physical unit is erased, another programming operation is performed on the first physical unit to change a data storage state of at least a part of memory cells in the first physical unit from a first state into a second state. After the first physical unit is programmed, an erase operation is performed on the first physical unit.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: January 24, 2023
    Assignee: PHISON ELECTRONICS CORP.
    Inventors: Yu-Siang Yang, Wei Lin, An-Cheng Liu, Yu-Heng Liu, Chun-Hsi Lai, Ting-Chien Zhan
  • Patent number: 11562734
    Abstract: The present disclosure relates to an automatic speech recognition system and a method thereof. The system includes a conformer encoder and a pair of ping-pong buffers. The encoder includes a plurality of encoder layers sequentially executed by one or more graphic processing units. At least one encoder layer includes a first feed forward module, a multi-head self-attention module, a convolution module, and a second feed forward module. The convolution module and the multi-head self-attention module are sandwiched between the first feedforward module and the second feed forward module. The four modules respectively include a plurality of encoder sublayers fused into one or more encoder kernels. The one or more encoder kernels respectively read from one of the pair of ping-pong buffers and write into the other of the pair of ping-pong buffers.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: January 24, 2023
    Assignee: KWAI INC.
    Inventors: Yongxiong Ren, Yang Liu, Heng Liu, Lingzhi Liu, Jie Li, Kaituo Xu, Xiaorui Wang
  • Publication number: 20230015142
    Abstract: A dross extraction system for a printer is disclosed, which includes an ejector defining an inner cavity associated therewith, the inner cavity retaining a liquid printing material. The dross extraction system also includes a first inlet coupled to the inner cavity of the ejector, a probe external to the ejector, which is selectably positionable to contact the liquid printing material to attract dross thereto, thereby extracting dross from the liquid printing material when the probe is withdrawn from the liquid printing material. A method of extracting dross from a metal jetting printer is also disclosed, which includes pausing an operation of the metal jetting printer, advancing a probe into a melt pool within a nozzle pump reservoir in the metal jetting printer, extracting dross from the metal printing material and onto the probe, retracting the probe from the nozzle pump reservoir, and resuming the operation of the metal jetting printer.
    Type: Application
    Filed: July 13, 2021
    Publication date: January 19, 2023
    Applicant: XEROX CORPORATION
    Inventors: Linn C. Hoover, Joseph C. Sheflin, Jason M. LeFevre, Seemit Praharaj, David Alan Vankouwenberg, Chu-Heng Liu, Douglas K. Herrmann, JR.
  • Publication number: 20230008363
    Abstract: Embodiments of the present application disclose an audio matching method and a related device. The audio matching method includes: obtaining audio data and video data; extracting to-be-recognized audio information from the audio data; extracting lip movement information of N users from the video data, where N is an integer greater than 1; inputting the to-be-recognized audio information and the lip movement information of the N users into a target feature matching model, to obtain a matching degree between each of the lip movement information of the N users and the to-be-recognized audio information; and determining a user corresponding to the lip movement information of the user with the highest matching degree as the target user to which the to-be-recognized audio information belongs.
    Type: Application
    Filed: November 17, 2020
    Publication date: January 12, 2023
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Heng LIU, Zhigang LI, Mingyu YU, Huimin CHE, Honglei ZHANG
  • Patent number: 11547771
    Abstract: An apparatus includes, among other components, a frame adapted to be connected to the exterior surface of a device that has a touchscreen. A retractable cover is operatively connected to the frame. The size of the retractable cover is equal to at least the size of the touchscreen, and the retractable cover is positioned to extend so as to cover the touchscreen. At least one ultraviolet light is also operatively connected to the frame. The ultraviolet light is positioned to direct ultraviolet lighting toward the touchscreen when the retractable cover extends to cover the touchscreen.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: January 10, 2023
    Assignee: Xerox Corporation
    Inventors: Seemit Praharaj, Douglas K. Herrmann, Chu-Heng Liu, Paul J. McConville, Jason M. LeFevre, Linn C. Hoover, David A. VanKouwenberg
  • Publication number: 20230006027
    Abstract: A display comprises a substrate (e.g., glass), a plurality of pixel circuits disposed on a back surface of the substrate, and a plurality of self-emitting devices disposed on a front surface of the substrate. The self-emitting devices are electrically connected to the plurality of pixel circuits by at least one electrically conductive via traveling through the substrate. Each pixel circuit comprises a first and a second transistor and a capacitor. The self-emitting devices may be LEDs or OLEDs for example.
    Type: Application
    Filed: September 12, 2022
    Publication date: January 5, 2023
    Inventor: Heng Liu
  • Publication number: 20220417324
    Abstract: Various embodiments of the present disclosure relate to a computer-implemented method, a system, and a storage medium, where a graph stored in a computing system is logically divided into subgraphs, the subgraphs are stored on different interconnected (or coupled) devices in the computing system, and nodes of the subgraphs include hub nodes connected to adjacent subgraphs. Each device stores attributes and node structure information of the hub nodes of the subgraphs into other devices, and software or hardware prefetch engine on the device prefetches attributes and node structure information associated with a sampled node. A prefetcher on a device interfacing with the interconnected (or coupled) devices may further prefetch attributes and node structure information of nodes of the subgraphs on other devices. A traffic monitor is provided on an interface device to monitor traffic. When the traffic is small, the interface device prefetches node attributes and node structure information.
    Type: Application
    Filed: June 8, 2022
    Publication date: December 29, 2022
    Inventors: Wei HAN, Shuangcheng LI, Hongzhong ZHENG, Yawen ZHANG, Heng LIU, Dimin NIU
  • Publication number: 20220410560
    Abstract: A coefficient of friction (COF) sensor on a carrier roll surface wetted with fountain solution transferred from an imaging member measures COF of the wetted carrier roll surface in real-time, even between or during printing operations. The transferred fountain solution may be concentrated and/or chilled to solidify before the measurement. The measured COF is used in a feedback loop to actively control the fountain solution layer thickness by adjusting the volumetric feed rate of fountain solution added onto the imaging member surface during an imaging or other printing operation to reach a desired uniform thickness for the printing. This fountain solution monitoring system may be fully automated.
    Type: Application
    Filed: June 25, 2021
    Publication date: December 29, 2022
    Inventors: Seemit PRAHARAJ, Chu-heng LIU, Paul J. MCCONVILLE, Douglas K. HERRMANN, Jason M. LEFEVRE
  • Publication number: 20220410302
    Abstract: A three-dimensional (3D) metal object manufacturing apparatus is equipped with a vacuum system and a hold-down plate to secure a metal foil to the hold-down plate during manufacture of a metal object. The melted metal drops ejected by the apparatus to form the object bond to the metal foil to form the base layer of the object. When the vacuum system is deactivated after manufacture of the object is complete, the object and foil are removed from the apparatus intact and the foil not part of the base layer is trimmed from the object.
    Type: Application
    Filed: June 28, 2021
    Publication date: December 29, 2022
    Inventors: Jason M. LeFevre, Paul J. McConville, Douglas K. Herrmann, Chu-Heng Liu, Seemit Praharaj, Robert R. Reed
  • Patent number: 11537967
    Abstract: Methods, devices, and apparatus, including computer programs encoded on computer storage media, for processing an item-picking dispatching request are provided. One of methods includes receiving a dispatching request with respect to item picking; determining a type of the dispatching request; determining, in stored picking resource status information, target picking resource status information corresponding to the type of the dispatching request according to a preset correspondence between types of dispatching requests and picking resource status information, wherein the stored picking resource status information is updated in real time; generating mirror-image information of the target picking resource status information; and generating a dispatching task for item picking based on the mirror-image information of the target picking resource status information.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: December 27, 2022
    Assignee: CAINIAO SMART LOGISTICS HOLDING LIMITED
    Inventors: Lijun Zhu, Shenghuo Zhu, Sen Yang, Ruipeng Luan, Heng Liu, Kailiang Tong, Yuanhong Xu
  • Publication number: 20220402023
    Abstract: A dross abatement system for a printer is disclosed. The dross abatement system includes a print head ejector, a pump in communication with the print head ejector having an inner cavity, a first inlet coupled to the inner cavity, a supply of printing material external to the print head ejector, a heating element configured to heat the printing material in the ejector, and a supply of absorbent material external to the print head ejector. A method of abating dross in a metal jetting printer is also disclosed, which includes pausing an operation of the printer, advancing an absorbent material into a melt pool within a nozzle pump reservoir, wherein the melt pool may include a metal printing material, absorbing dross from the metal printing material, removing the absorbent material including the dross, and resuming operation of the metal jetting printer.
    Type: Application
    Filed: June 16, 2021
    Publication date: December 22, 2022
    Applicant: XEROX CORPORATION
    Inventors: Seemit Praharaj, Jason M. LeFevre, Douglas K. Herrmann, Chu-Heng Liu, David Alan VanKouwenberg, Linn C. Hoover
  • Publication number: 20220401303
    Abstract: A medicament delivery product is provided in which one or more medicaments are fixed on a sheet according to a patient-specific pre-defined pattern. The sheet is formed into a three-dimensional or non-planar shape to facilitate ingestion by the patient. The pre-defined patterns for the medicaments are configured for controlled release or absorption of the corresponding medicament after ingestion by the patient. The medicaments can be in a liquid or a powder form and applied to the surface of the sheet in an appropriate manner. The one or more medicaments can be any combination of drugs, medicines, vitamins, nutritional supplements and the like.
    Type: Application
    Filed: June 17, 2021
    Publication date: December 22, 2022
    Inventors: Chu-heng Liu, Jason M. LeFevre, Paul J. McConville, Seemit Praharaj, Douglas K. Herrmann