Patents by Inventor Hua Fan

Hua Fan 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: 11138185
    Abstract: There is disclosed a technique for managing data inconsistencies in file systems. For example, in one embodiment, the technique comprises detecting a data inconsistency relating to a file system block in a file system. The technique also comprises determining whether the file system block includes a mapping pointer associated with a first type of pattern. The technique further comprises performing recovery in connection with the file system block. The recovery including deciding whether to associate a mapping pointer of the file system block with one of a second type of pattern or a data loss state based on the said determination of whether the file system block includes a mapping pointer associated with a first type of pattern.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: October 5, 2021
    Assignee: EMC IP Holding Company LLC
    Inventors: Yaming Kuang, Philippe Armangau, Xiao Hua Fan
  • Publication number: 20210291138
    Abstract: A vertically oriented plasma reactor is provided. In another aspect, a plasma reactor includes a vertically elongated vacuum chamber, a wall internally projecting within a middle section of the housing, magnets, electrodes and a radio frequency source. A further aspect employs a workpiece-entry port and an opposite workpiece material-exit port, with one located adjacent a top end and the other adjacent a bottom end of a vertically elongated reactor housing or vacuum chamber. Yet another aspect employs a moving or falling-bed plasma reactor for use in activating biochar material.
    Type: Application
    Filed: July 11, 2019
    Publication date: September 23, 2021
    Applicant: Board of Trustees of Michigan State University
    Inventors: Qi Hua FAN, Martin E. TOOMAJIAN, Thomas SCHUELKE
  • Patent number: 11063425
    Abstract: Fault detection, isolation and restoration systems for electric power systems using “smart switch” points that autonomously coordinate operations to minimize the number of customers affected by outages and their durations, without relying on communications with a central controller or between the smart switch points. Each smart recloser can be individually programmed to operate as a tie-switch, a Type-A (normal or default type) sectionalizer, or a Type-B (special type) sectionalizer. The Type-A recloser automatically opens when it detects a fault, uses a direction-to-fault and zone-based distance-to-fault operating protocol, and stays “as is” with no automatic opening when power (voltage) is lost on both sides of the switch. The Type-B sectionalizer does the same thing and is further configured to automatically open when it detects that it is deenergized on both sides for a pre-defined time period, and to operate like a tie-switch once open.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: July 13, 2021
    Assignee: Southern States, LLC
    Inventors: Jiyuan Fan, Joseph R Rostron, Hua Fan, David Moore, Raj Anand, Brian Berner, Buddy Reneau
  • Publication number: 20210197339
    Abstract: A coated abrasive article includes a substrate and a plurality of abrasive particles overlying the substrate, and the plurality of abrasive particles including tapered abrasive particles having a taper fraction standard deviation of at least 0.025 and not greater than 0.090.
    Type: Application
    Filed: December 23, 2020
    Publication date: July 1, 2021
    Inventors: Samuel S. MARLIN, Ralph BAUER, Stefan VUJCIC, Paul W. REHRIG, Marie-Camille AUSCHER, Darrell K. EVERTS, Hua FAN, Sujatha K. IYENGAR, Christopher ARCONA, Anthony MARTONE, Brahmanandam V. TANIKELLA
  • Publication number: 20210198545
    Abstract: A coated abrasive article includes a substrate and a plurality of abrasive particles overlying the substrate, wherein at least 5% of the plurality of abrasive particles is tooth-shaped abrasive particles.
    Type: Application
    Filed: December 23, 2020
    Publication date: July 1, 2021
    Inventors: Samuel S. MARLIN, Ralph BAUER, Stefan VUJCIC, Paul W. REHRIG, Marie-Camille AUSCHER, Darrell K. EVERTS, Hua FAN, Sujatha K. IYENGAR, Christopher ARCONA, Anthony MARTONE, Brahmanandam V. TANIKELLA
  • Patent number: 11049697
    Abstract: A single beam plasma or ion source apparatus is provided. Another aspect employs an ion source including multiple magnets and magnetic shunts arranged in a generally E cross-sectional shape. A further aspect of an ion source includes magnets and/or magnetic shunts which create a magnetic flux with a central dip or outward undulation located in an open space within a plasma source. In another aspect, an ion source includes a removeable cap attached to an anode body which surrounds the magnets. Yet a further aspect provides a single beam plasma source which generates ions simultaneously with target sputtering and at the same internal pressure.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: June 29, 2021
    Assignees: Board of Trustees of Michigan State University, Fraunhofer USA
    Inventors: Qi Hua Fan, Thomas Schuelke, Lars Haubold, Michael Petzold
  • Publication number: 20210160806
    Abstract: Embodiments of this application provide a method and an apparatus for reducing co-channel interference, and a base station. The method includes: receiving, by a relay eNodeB ReNB, a propagation delay sent by a donor eNodeB DeNB, where the propagation delay is a delay of propagation between the DeNB and the ReNB; and adjusting, based on the propagation delay, timing parameters for sending uplink data and receiving downlink data by the ReNB, where the timing parameters are delays of the ReNB relative to the DeNB. The DeNB is used as a reference for the propagation delay between the DeNB and the ReNB, to delay timing of receiving the downlink data by the ReNB; and advance timing of sending the uplink data by the ReNB.
    Type: Application
    Filed: February 6, 2021
    Publication date: May 27, 2021
    Inventors: Lei Jin, Honggang Wang, Qi Li, Hua Fan
  • Publication number: 20210147974
    Abstract: A magnetic-field-assisted plasma coating system and method are provided. In another aspect, a coating system employs a cathode with a linearly moveable magnetic field. A further aspect employs a workpiece as an anode within which is located an elongated cathode which internally coats a bore of the workpiece. Still another aspect of the present system and method employs an elongated and hollow cathode with at least one magnetic source therein. In yet another aspect, end caps or plates seal against one or more open ends of a workpiece bore to be coated, with a cathode inserted into the bore and a vacuum being created within the bore such that the workpiece itself defines at least a portion of a vacuum chamber.
    Type: Application
    Filed: June 7, 2018
    Publication date: May 20, 2021
    Applicants: Board of Trustees of Michigan State University, Fraunhofer USA
    Inventors: Thomas SCHUELKE, Michael BECKER, Lars HAUBOLD, Qi Hua FAN
  • Patent number: 11003547
    Abstract: There is disclosed techniques for managing data storage. In one embodiment, the techniques comprise recording index information in a block-based segment of a file system. The index information relates to an extent list in a virtual block map (VBM) pointing to the block-based segment. The techniques also comprise detecting an error in connection with the VBM. The techniques also comprise rebuilding the VBM based on the index information in response to detecting the error.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: May 11, 2021
    Assignee: EMC IP Holding Company LLC
    Inventors: Yaming Kuang, Jun Liu, Xiao Hua Fan
  • Publication number: 20210127277
    Abstract: A terminal coverage method and an apparatus is provided. The method includes, obtaining, by a network device, position information of a terminal in a cell relative to the network device, then the network device divides the cell into a plurality of areas based on the position information of the terminal in the cell relative to the network device, and sends information to terminals in different areas of the plurality of areas at different time points, where the information is carried on a channel with a maximum repetition count less than a threshold. In other words, the network device divides the cell into the plurality of areas, and sends the information carried on a channel with a limited repetition count to a terminal in at least one target area in the plurality of areas in a time division manner.
    Type: Application
    Filed: January 8, 2021
    Publication date: April 29, 2021
    Inventors: Yuan LI, Pengcheng ZHANG, Hua FAN
  • Patent number: 10985771
    Abstract: A method of calibrating capacitive array of a resistor-capacitor hybrid successive approximation register analog-to-digital converter (RC-hybrid SAR ADC) that includes a high M-bit capacitor DAC and a low N-bit resistor DAC. The method includes: disposing n unit capacitors in each capacitive array of the RC-hybrid SAR ADC, wherein n=2M?1; sorting the capacitors in an ascending order according to their capacitances to form a sorted array, and selecting two capacitors Cu(n/2)*, Cu(n/2+1)* in the middle positions as a least significant bit (LSB) capacitor and a dummy capacitor, respectively; obtaining a new array by forming each capacitor through adding two capacitors which have symmetrical positions with respect to the middle position(s) in the sorted array; and sorting the new array in an ascending order, and selecting the capacitor in the middle position as a higher bit capacitor. The method improves the static and dynamic performance of the SAR ADC.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: April 20, 2021
    Assignee: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
    Inventors: Hua Fan, Chen Wang, Peng Lei, Dainan Zhang, Quanyuan Feng, Lang Feng, Xiaopeng Diao, Dagang Li, Kelin Zhang, Daqian Hu, Yuanjun Cen
  • Patent number: 10969559
    Abstract: A lens module with physically stronger foundations and enhanced stability includes a circuit board, an image sensor thereon, a mounting bracket, an optical filter, and a lens unit. The mounting bracket on the circuit board has the image sensor. The optical filter on the mounting bracket is above the image sensor. The lens unit is connected to the mounting bracket facing away from the circuit board by a frame of adhesive. The surface of the mounting bracket facing away from the circuit board has positioning posts at corners of the surface of the mounting bracket. A surface of the lens unit connected to the mounting bracket has receiving grooves positioned at corners of the surface of the lens unit. The positioning posts are inserted into the receiving grooves.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: April 6, 2021
    Assignee: TRIPLE WIN TECHNOLOGY (SHENZHEN) CO.LTD.
    Inventors: Kun Li, Shin-Wen Chen, Ke-Hua Fan, Long-Fei Zhang
  • Publication number: 20210058091
    Abstract: A method of calibrating capacitive array of a resistor-capacitor hybrid successive approximation register analog-to-digital converter (RC-hybrid SAR ADC) that includes a high M-bit capacitor DAC and a low N-bit resistor DAC. The method includes: disposing n unit capacitors in each capacitive array of the RC-hybrid SAR ADC, wherein n=2M?1; sorting the capacitors in an ascending order according to their capacitances to form a sorted array, and selecting two capacitors Cu(n/2)*, Cu(n/2+1)* in the middle positions as a least significant bit (LSB) capacitor and a dummy capacitor, respectively; 4) obtaining a new array by forming each capacitor through adding two capacitors which have symmetrical positions with respect to the middle position(s) in the sorted array; and sorting the new array in an ascending order, and selecting the capacitor in the middle position as a higher bit capacitor. The method improves the static and dynamic performance of the SAR.
    Type: Application
    Filed: December 4, 2019
    Publication date: February 25, 2021
    Inventors: Hua FAN, Chen WANG, Peng LEI, Dainan ZHANG, Quanyuan FENG, Lang FENG, Xiaopeng DIAO, Dagang LI, Kelin ZHANG, Daqian HU, Yuanjun CEN
  • Patent number: 10923907
    Abstract: Electric power Fault detection, isolation and restoration (FDIR) systems using “smart switches” that autonomously coordinate operations to minimize the number of customers affected by outages and their durations, without relying on communications with a central controller or between the smart switch points. The smart switches typically operate during the substation breaker reclose cycles while the substation breakers are open, which enables the substation breakers to reclose successfully to restore service within their normal reclosing cycles. Alternatively, the smart switch may be timed to operate before the substation breakers trip to effectively remove the substation breakers from the fault isolation process. Both approaches allow the FDIR system to be installed with minimal reconfiguration of the substation protection scheme.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: February 16, 2021
    Assignee: Southern States, LLC
    Inventors: Jiyuan Fan, Joseph R Rostron, Hua Fan, David Moore, Raj Anand, Brian Berner, Buddy Reneau
  • Publication number: 20210041122
    Abstract: The present invention provides a detecting system and method of liquid leakage inside the duct, which is used when the liquid is not transported inside the duct. The detecting system comprises: a duct, a detecting device, a signal processing device. The detecting device is fixed to the wall inside the duct. And the detecting device is used for starting detection when the liquid is not delivered inside the duct. When the liquid activates the detecting device, the detecting device sends a signal to the signal processing device for subsequent processing.
    Type: Application
    Filed: August 6, 2019
    Publication date: February 11, 2021
    Inventors: Yi-Hua Fan, Hsiang Kao
  • Publication number: 20200404614
    Abstract: A positioning method includes: sending, by a base station, indication information to a plurality of UEs, where the plurality of UEs have an MDT function in a cell covered by a to-be-positioned RRU, and the indication information is used to indicate the plurality of UEs to periodically report location information; obtaining, by the base station within each of at least one time period, time-of-arrival ToA measurement values of N UEs, where the N UEs are some UEs that report the location information in the plurality of UEs, N?1, and N is an integer; and calculating, by the base station, a location of the to-be-positioned RRU based on M ToA measurement values obtained within the at least one time period and M pieces of location information that are in the received location information and that respectively correspond to the M ToA measurement values, where M?3, and M is an integer.
    Type: Application
    Filed: September 8, 2020
    Publication date: December 24, 2020
    Inventors: Wei Dong, Hua Fan, Xiaojie Li, Fei Jiao
  • Publication number: 20200387726
    Abstract: The present disclosure discloses a face identification system that includes an image-retrieving circuit, an invisible light source and a processing circuit. The image-retrieving circuit includes light-sensing elements each including a plurality of visible light sensors and an invisible light sensor. The processing circuit executes software and firmware executable commands to execute a face identification method that includes the steps outlined below. An invisible light is emitted to an object to be identified by the invisible light source. A visible light sensed frame and an invisible light sensed frame are retrieved by using the visible and invisible light sensors. Determine whether a light reflection related parameter of the invisible light sensed frame is within a predetermined range is determined only according to the invisible light sensed frame. When the light reflection related parameter is within the predetermined range, the object to be identified is determined to be a real face.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 10, 2020
    Inventor: JIN-HUA FAN
  • Publication number: 20200382369
    Abstract: The present disclosure discloses an image surveillance system that includes an image recording host and IP cameras. Each of the IP cameras includes a storage circuit that stores identification information including identification codes, a communication circuit that performs network communication and a processing circuit. The processing circuit executes software and firmware executable commands to execute an image surveillance system establishing method that includes the steps outlined below. The other IP cameras are identified according to the identification information by using the communication circuit to perform network connection thereto to form a local area network that only includes the IP cameras. Within the local area network, a connection path is set to connect the image recording host either indirectly through at least one of the other IP cameras or directly. An image stream is transmitted to the image recording host through the connection path by using the communication circuit.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 3, 2020
    Inventor: JIN-HUA FAN
  • Publication number: 20200358508
    Abstract: A method executed by a first base station in this application includes: determining target pilot ports and a coordinating cell of a target cell, where the coordinating cell is a cell that jointly sends, with the target cell, channel state information-reference signals CSI-RSs of the target cell, the target pilot ports are pilot ports used to jointly send the CSI-RSs of the target cell, and the target pilot ports include a pilot port of the target cell and a pilot port of the coordinating cell; determining a resource location of a target time-frequency resource, where the target time-frequency resource is a time-frequency resource used to send the CSI-RSs of the target cell; and sending the CSI-RSs of the target cell to a terminal based on the target time-frequency resource, where signal strength of the terminal is lower than a preset threshold.
    Type: Application
    Filed: July 29, 2020
    Publication date: November 12, 2020
    Inventors: Qi LI, Huan GUO, Hua FAN
  • Patent number: 10827606
    Abstract: A lens module includes a circuit board, a photosensitive chip, a mounting bracket, a filter, a lens base, and a lens. The circuit board defines a first through hole. The photosensitive chip is mounted within the first through hole. Gold fingers are mounted on the circuit board surrounding the photosensitive chip. Metal wires are mounted on a periphery of the photosensitive chip. Each of the metal wires is coupled to a corresponding one of the gold fingers. The metal wires are encapsulated by a colloid so that the metal wires do not contact each other. The mounting bracket is mounted on the circuit board. The filter is mounted on the mounting bracket and aligned with the photosensitive chip. The lens base is mounted on the mounting bracket. The lens is mounted within the lens base and aligned with the photosensitive chip.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: November 3, 2020
    Assignee: TRIPLE WIN TECHNOLOGY(SHENZHEN) CO. LTD.
    Inventors: Shin-Wen Chen, Long-Fei Zhang, Ke-Hua Fan, Kun Li