Patents by Inventor Xiong Liu

Xiong 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).

  • Publication number: 20190318796
    Abstract: A shift register unit is provided, which includes an input circuit, a first output circuit and a first output signal adjustment circuit. The input circuit is configured for receiving an input signal from an input terminal and controlling an electrical signal of a first node based on the input signal. The first output circuit is configured for outputting a first output signal at a first output terminal of the shift register unit based on a first clock signal under control of the electrical signal of the first node. The first output signal adjustment circuit is configured for providing a first reference signal to the first output terminal under control of the second clock signal so as to decrease an amplitude of the first output signal.
    Type: Application
    Filed: January 10, 2019
    Publication date: October 17, 2019
    Inventors: Xiong XIONG, Xiaozhe ZHANG, Yudong LIU, Jianjun WANG
  • Patent number: 10446184
    Abstract: A sequence of symbols is generated to describe a set of write data, the symbols having a length of nT, where T is a channel clock rate and n is an integer over a predetermined range. Bi-directional write currents are applied to a write pole to record the sequence of symbols to a magnetic storage medium. The write pole has an effective footprint with a downtrack length of mT, where m is an integer. The write currents are switched between a first rail current and a second rail current for alternating symbols, the write currents further transitioning to an intermediate current value for at least one channel clock period for symbols longer than 1T. Write currents are applied to the write pole when recording symbols having a length longer than mT using the effective footprint of the write pole as an interval.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: October 15, 2019
    Assignee: Seagate Technology LLC
    Inventors: Xiong Liu, Quan Li, Ralph William Cross
  • Patent number: 10446182
    Abstract: Apparatus and method for heat assisted magnetic recording (HAMR). In some embodiments, a write element has a magnetic write coil that writes a magnetic pattern to a recording layer of a data recording surface. A light delivery mechanism imparts heat in the form of electromagnetic energy to the data recording layer during operation of the write element. A radiation detector detects radiation power emitting from the recording layer responsive to the operation of the light delivery mechanism. A control circuit determines a direct temperature of the recording layer responsive to the detected radiation power, and as necessary, adjusts a power input to the light delivery mechanism responsive to the determined temperature. The radiation detector may be an infrared photodetector with a graphene-based detection layer. The photodetector may be disposed between a write pole and a return pole of the write element.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: October 15, 2019
    Assignee: Seagate Technology LLC
    Inventors: Lihong Zhang, Xiong Liu, Samuel Swee Chuan Gan
  • Patent number: 10416729
    Abstract: A hard disk drive mounting assembly that includes a disk drive assembly having a base structure that includes a screw hole and a damping insert at least partially surrounding the screw hole. The disk drive assembly further includes a threaded insert positioned in the screw hole of the damping insert.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: September 17, 2019
    Assignee: Seagate Technology LLC
    Inventors: Hao Sun, Aravind Pitty, Xiong Liu, Ling Ling Zhang
  • Publication number: 20190278594
    Abstract: In one implementation, this disclosure provides a method for executing a partial band rewrite operation comprising identifying a first track of a shingled data band to receive data of a write received at a shingled media storage device and writing a first subset of the received data to a media cache, where the first subset corresponds to the first track of the shingled data band to receive data of the write command. The method also includes writing a remaining subset of the received data to target locations within the shingled data band without updating data on the first track within the shingled data band corresponding to the first subset of the received data.
    Type: Application
    Filed: March 7, 2018
    Publication date: September 12, 2019
    Inventors: Xiong Liu, WenXiang Xie, Quan Li, Jian Qiang
  • Patent number: 10410662
    Abstract: A disc drive includes a data storage surface having a system data zone and a user data zone, and a head that communicates with the data storage surface. The disc drive also includes a control circuit communicatively coupled to the head. The control circuit is configured to, during power up initialization of the disc drive, apply a fly height control value to direct the head to fly at a first target fly height for reading system data from the system data zone. The first target fly height is substantially higher than a second target fly height for reading user data from the user data zone. The control circuit determines whether an actual fly height of the head is substantially equal to the first target fly height. The control circuit performs fly height correction when the actual fly height is not substantially equal to the first target fly height.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: September 10, 2019
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Xiong Liu, Quan Li, Lihong Zhang, Chengyi Guo
  • Patent number: 10403218
    Abstract: A Mura compensation circuit and method, a driving circuit and a display device are provided. The Mura compensation circuit comprises: a vertical Mura compensation unit, for providing a corresponding gamma voltage to a vertical block Mura region and a vertical non-Mura region of a display panel respectively, to compensate for a vertical Mura phenomenon; and/or a horizontal Mura compensation unit, for providing a corresponding gate drive signal and/or a corresponding charging/discharging control signal to a horizontal block Mura region and a horizontal non-Mura region of a display panel respectively, to compensate for a horizontal Mura phenomenon. The Mura compensation circuit can make the different regions of the display panel have the same display effect, and improve reduction of display quality caused by impedance difference at different positions of the display panel, thereby raising the quality of a picture, and can be promoted and applied widely.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: September 3, 2019
    Assignees: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectronics Technology Co., Ltd.
    Inventors: Jian Zhao, Mo Chen, Yudong Liu, Xiong Xiong
  • Publication number: 20190258402
    Abstract: A data-storing method for accelerated read throughput of a channel received as part of a multi-channel data stream includes writing a first channel segment of the multi-channel data stream to a first continuous sequence of physical blocks along a first data track of a storage medium within a storage device and identifying a second channel segment of the multi-channel data stream as being a continuation of the first channel segment. The method further includes writing the second channel segment to a second continuous sequence of physical blocks along a second data track responsive to the identification, the second continuous sequence of physical blocks being offset from the first continuous sequence in a down-track direction by a minimum block offset, the minimum block offset representing at least a number of physical blocks on the storage medium that rotate below a read/write element of the storage device during a time that the read/write element is moved from the first data track to the second data track.
    Type: Application
    Filed: April 3, 2018
    Publication date: August 22, 2019
    Inventors: Xiong Liu, Jiangnan Lin, WenXiang Xie
  • Patent number: 10388328
    Abstract: A valve apparatus for a storage device includes a tab configured to couple to an enclosure and a flap coupled to the tab by a flexure. The flap is configured to regulate airflow through a breather hole of the enclosure. The flap includes an opening configured to reduce airflow into the enclosure when the flap is in a closed position.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: August 20, 2019
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Tai Zen Tan, Lihong Zhang, Xiong Liu
  • Patent number: 10388314
    Abstract: Apparatus and method for reducing the effects of thermal asperities on a rotatable data recording surface. A data transducer writes user data to a first set of tracks at a first fly height above the recording surface. A compensation circuit detects a thermal asperity (TA) on the recording surface, and establishes a guard band as a second set of tracks that are co-radial with the TA. The second set of tracks are deallocated and removed from service. The compensation circuit further defines a reserve band as a third set of tracks immediately adjacent the guard band, and selects an increased, second fly height that allows the data transducer to write data to the reserve band without contacting the TA. The second set of tracks may have a greater track pitch than the first set of tracks to compensate for the greater fly height.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: August 20, 2019
    Assignee: Seagate Technology LLC
    Inventors: Xiong Liu, Lan Xia, Quan Li, Lihong Zhang, Swee Chuan Samuel Gan
  • Publication number: 20190250476
    Abstract: A method for repairing a white defect of a LCD panel includes providing a substrate, the substrate defining pixel areas which themselves comprise a base, a first metal layer, a first insulating layer, a semi-conductor layer, an ohmic contact layer, a source electrode, a drain electrode, and a second insulating layer; forming a through hole by laser in the second insulating layer, the through hole extending through the second insulating layer and separating the drain electrode into two spaced parts; forming a third insulating layer to cover the first conductive layers, the second insulating layer and the though hole and forming a second conductive layer by laser on the third insulating layer to couple the first conductive layer to the second conductive layer.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 15, 2019
    Inventors: YUAN XIONG, CHIH-CHUNG LIU, MING-TSUNG WANG, MENG-CHIEH TAI
  • Publication number: 20190250887
    Abstract: Apparatuses and methods disclosed herein relate to detecting a signal generated by a spin torque oscillator (STO). The signal is outputted, wherein the signal includes a direct current (DC) component, a wide bandwidth noise component, and an STO oscillating radio frequency (RF) component. The signal is filtered, wherein the filtering removes the DC component and the STO oscillating RF component, leaving the wide bandwidth noise component. A value of the wide bandwidth noise component is converted into a binary value, and a bit from the binary value is selected and combined with another bit to form a random number.
    Type: Application
    Filed: February 12, 2018
    Publication date: August 15, 2019
    Inventors: Xiong Liu, Lihong Zhang, WenXiang Xie, Quan Li
  • Publication number: 20190253176
    Abstract: The present invention relates to a construction method of a mode-division multiplexing fiber-optic communication system, which includes following contents: converting multiple-input optical signals into optical propagation modes supported by a graded-index ring-core optical fiber at a transmitting end, after being multiplexed by a mode multiplexer, injecting the optical signals into the graded-index ring-core optical fiber for transmission; using a mode de-multiplexer to separate optical signals of different mode groups at a receiving end firstly; and for the separation of internal modes of the same mode group, adopting a multi-channel reception and a digital signal processing method based on a multiple-input multiple-output equalization for processing: for the separation of modes in a base mode group and a high-order mode group, using a digital signal processing algorithm including a 2×2 multiple-input multiple-output equalization and a digital signal processing algorithm including a 4×4 multiple-input multi
    Type: Application
    Filed: May 18, 2017
    Publication date: August 15, 2019
    Applicant: SUN YAT-SEN UNIVERSITY
    Inventors: Jie LIU, Guoxuan ZHU, Xiong WU, Yujie CHEN, Jiangbo ZHU, Siyuan YU
  • Patent number: 10381049
    Abstract: The present disclosure relates to a data storage device housing component (and related data storage devices) that include a polymeric element attached to a surface thereof. The polymeric element includes a polymeric matrix and a plurality of nanofiller elements dispersed within the polymeric matrix to increase the thermal conductivity of the polymeric element as compared to a polymeric element that does not include the plurality of nanofiller elements. Also disclosed are related methods.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: August 13, 2019
    Assignee: Seagate Technology LLC
    Inventors: Lihong Zhang, Xiong Liu, Aravind Pitty
  • Publication number: 20190242231
    Abstract: The present invention provides a method for further forming a plurality of small fractures in a main fracture. If a radial main fracture is further fractured axially to form a plurality of branch fractures, the stimulated volume of the oil and gas reservoir will be achieved to greatly increase the yield of dense oil and gas. The main contribution of the present invention is to form three-dimensional fracture networks for any low-permeability oil reservoirs to achieve stimulated reservoir volume. The concept is that an original main fracture is further fractured to form a plurality of branch fractures (the branch fractures form included angles with the original main fracture), and the locations for forming the branch fractures in the main fracture and even the size and length of the branch fractures can be controlled artificially, so that the branch fractures can be formed by fracturing where needed.
    Type: Application
    Filed: March 21, 2018
    Publication date: August 8, 2019
    Inventors: Desheng ZHOU, Hua YANG, Xianwen LI, Shun LIU, Wenbin CAI, Xianlin MA, Xiong LIU, Yafei LIU
  • Publication number: 20190240275
    Abstract: Disclosed herein are extracts of Andrographis paniculata having highly concentrated active ingredients, preparation methods and medical use for treating autoimmunity and inflammatory disease.
    Type: Application
    Filed: November 1, 2017
    Publication date: August 8, 2019
    Inventors: Wei-Guo Su, Xiong Li, Weihan Zhang, Bo Liu, Huaqing Cai, Zhilong Weng, Hongqiang Wang, Zhiyong Yu, Lei Jiang
  • Patent number: 10374545
    Abstract: A rotor temperature monitoring method and system for a permanent magnet synchronous motor are provided. According to the method and system, an a-phase line current and a b-phase line current of a stator of a permanent magnet synchronous motor are obtained as a first line current and a second line current; further, a line voltage between the a-phase and the b-phase of the stator is obtained and a rotating speed of the rotor of the permanent magnet synchronous motor is obtained; and then, the first line current, the second line current, the line voltage, the rotating speed of the rotor, an inductance parameter of the permanent magnet synchronous motor and a temperature characteristic equation of a permanent magnet of the rotor are substituted into a preset rotor permanent magnet temperature expression to calculate and obtain the temperature of the rotor.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: August 6, 2019
    Assignee: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.
    Inventors: Jianghua Feng, Jing Shang, Junfeng Xu, Yuliang Wen, Xiong Liu, Chaoyang Zhang, Lei Xiao, Yaping He, Yonghui Nan, Hanfeng Zheng
  • Publication number: 20190235840
    Abstract: A method includes detecting noise in a laser output of a heat assisted magnetic recording device. The noise is converted into an electrical signal including a numerical value. A least significant digit of the numerical value is selected. The least significant digit is concatenated with another least significant digit from another detecting of another noise in another laser output to form a number.
    Type: Application
    Filed: January 31, 2018
    Publication date: August 1, 2019
    Inventors: Li Hong ZHANG, WenXiang XIE, Xiong LIU
  • Publication number: 20190204313
    Abstract: Disclosed herein are systems and methods for detecting Chemical Species, Biomolecules and Biotargets (Analytes) using receptor functionalized metal nanoparticles and Dynamic Light Scattering.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 4, 2019
    Inventors: Qun HUO, Xiong LIU, Qiu DAI
  • Publication number: 20190205041
    Abstract: Implementations disclosed herein provide an apparatus including a storage media and a storage controller configured to divide physical storage space of the storage media into a plurality of media zones between an inner diameter (ID) and an outer diameter (OD) of the storage media, and write LBA sectors to the media zones in a direction from the ID to the OD and writing the data in the direction from the OD to the ID within each media zone.
    Type: Application
    Filed: December 29, 2017
    Publication date: July 4, 2019
    Inventors: Jiangnan Lin, Xiong Liu, WenXiang Xie