Patents by Inventor Zheng Luo

Zheng Luo 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: 11191137
    Abstract: An LED driving system with a master-slave architecture. The LED driving system has at least two LED driving circuits which both have a first status detecting circuit, a second status detecting circuit and a first feedback control circuit. The first status detecting circuit receives a plurality of headroom detecting voltages provided by a plurality of LED strings and generates at least one self-status signal. The second status detecting circuit receives a downstream feedback signal and generates at least one downstream status signal. The first feedback control circuit generates a first feedback control signal based on the at least one self-status signal and the at least one downstream status signal. The second status detecting circuit of one LED driving circuit is coupled to the first feedback control circuit of the other LED driving circuit.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: November 30, 2021
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Junjian Zhao, Chia-Lung Ni, Zheng Luo, Yu-Huei Lee, Huan Liu
  • Patent number: 11186309
    Abstract: An active steering system using planetary gear set with less tooth difference and a control method thereof. The system includes a first input shaft with one end connected to a steering wheel of an automobile and the other end fixedly sleeved with a first gear; a ring gear sleeve, where a ring gear is fixedly mounted in the ring gear sleeve circumferentially, and a hollow shaft protrudes from a center of an end of the ring gear sleeve and is fixedly sleeved with a second gear engaged with the first gear; a second input shaft with one end fixedly connected to an output end of a coupled motor and the other end fixedly sleeved with a third gear; an eccentric shaft with one end fixedly sleeved with a fourth gear engaged with the third gear and the other end sleeved in the hollow shaft and eccentrically provided with a boss.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: November 30, 2021
    Assignee: Jilin University
    Inventors: Junnian Wang, Dedong Guo, Zheng Luo
  • Publication number: 20210363434
    Abstract: The present invention relates to a micro-interface strengthening reaction system and method for heavy oil hydrogenation preparation of ship fuel, including a liquid phase feed unit, a gas phase feed unit, a micro-interface generator, a fixed-bed reactor and a separation tank. The present invention may reduce the pressure during the reaction by 10-80% while ensuring the efficiency of the reaction by breaking the gas to form micro-sized micro-bubbles and making the micro-bubbles mix with heavy oil to form an emulsion to increase the area between the gas and the liquid phase and to achieve the effect of enhancing mass transfer in a lower preset range. And, the present invention greatly enhances the mass transfer, so that the gas-liquid ratio can be greatly reduced. Also, the method of the present invention has low process severity, high production safety, low product cost per ton, and strong market competitiveness.
    Type: Application
    Filed: June 6, 2019
    Publication date: November 25, 2021
    Applicant: NANJING YANCHANG REACTION TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Zhibing ZHANG, Zheng ZHOU, Weimin MENG, Feng ZHANG, Lei LI, Baorong WANG, Gaodong YANG, Huaxun LUO, Guoqiang YANG, Hongzhou TIAN, Yu CAO
  • Publication number: 20210359251
    Abstract: A flexible display panel and a flexible display device are provided. The flexible display panel includes a flexible screen layer and an elastic support layer; the flexible screen layer and the elastic support layer are stacked; the elastic support layer includes a support mechanism and an elastic mechanism, the support mechanism is configured to support the flexible screen layer and is rollable, and the elastic mechanism is configured to generate an anti-rolling elastic force to maintain flatness of the flexible screen layer if the flexible screen layer is unrolled.
    Type: Application
    Filed: January 17, 2019
    Publication date: November 18, 2021
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shaopeng XU, Hao WU, Xuzhong LIU, Na AN, Zongwei LUO, Baolei GUO, Gang CI, Xiao MA, Xinfeng GONG, Bin XU, Zhenhua LUO, Zheng ZHANG, Qingzhu GUAN, Wei SU, Jinzhao ZHOU, Guochun WANG, Zuoxin YU, Dianzhong LIU
  • Publication number: 20210340045
    Abstract: The invention discloses a method and a device for treating cyanobacteria in a water area based on the principle of biological competition, the method comprising: finding an area where cyanobacteria most easily accumulate, i.e. a concave bank of a water area, and setting up an algae interception net around the area; quickly and largely clearing the cyanobacteria in the area by means of manual or mechanical catching; planting emerged plants on the shoreline of the water area to fundamentally improve water quality; and additionally, densely arranging treatment tanks in a larger water area to kill the cyanobacteria gradually, and collecting dead cyanobacteria to prevent them from polluting the water area subsequently; and collecting and treating the tanks regularly for recycling.
    Type: Application
    Filed: March 28, 2019
    Publication date: November 4, 2021
    Inventors: Zheng ZHENG, Weizhen ZHANG, Peng GU, Xingzhang LUO, Jian HE
  • Publication number: 20210333632
    Abstract: This disclosure discloses a display device including: a display panel; a backlight module including a light-emitting diode group; the display panel including a first substrate and a second substrate successively along the direction from the backlight module, wherein the first substrate includes an exposed area which is not covered by the second substrate, and an orthographic projection of the light-emitting diode group on the first substrate lies in the exposed area; a protective cover plate on the light exit side of the display panel; a housing on the side of the backlight module away from the display panel, and is grounded; and a conductive structure, wherein an orthographic projection of the conductive structure on the first substrate at least partially overlaps with the orthographic projection of the light-emitting diode group on the first substrate, and the conductive structure connects the protective cover plate with the housing.
    Type: Application
    Filed: November 13, 2018
    Publication date: October 28, 2021
    Inventors: Hao WU, Xiaoping ZHANG, Hui YIN, Qi JING, Zheng ZHANG, Gang CI, Xiao MA, Zhenhua LUO, Luo ZHANG, Xuewen CAO, Binbin LIU, Wei SU, Hyungkyu KIM, Site CAI
  • Publication number: 20210333837
    Abstract: A foldable flexible screen terminal includes: at least two screen terminal portions and a rollable flexible member, two adjacent screen terminal portions being connected by the rollable flexible member, the rollable flexible member including a plurality of flexible member units and a plurality of bellows structures, each of the plurality of bellows structures being foldable and unfoldable, the plurality of bellows structures including a plurality of first bellows structures, and two adjacent flexible member units being connected by one of the plurality of first bellows structures.
    Type: Application
    Filed: April 9, 2019
    Publication date: October 28, 2021
    Inventors: Shaopeng XU, Hao WU, Xuzhong LIU, Na AN, Gang CI, Xiao MA, Xinfeng GONG, Bin XU, Zhenhua LOU, Zheng ZHANG, Zongwei LUO, Qingzhu GUAN, Wei SU, Guochun WANG, Zuoxin YU, Dianzhong LIU, Jinzhao ZHOU, Xiaohui CHU, Baolei GUO
  • Patent number: 11160032
    Abstract: Embodiments of this application provide a data sending method, a data receiving method, a transmit-end device, and a receive-end device. The data sending method provided in the embodiments of this application may include: performing scrambling code initialization to generate a scrambling code; scrambling a data block based on the scrambling code; repeatedly sending the scrambled data block; performing scrambling code initialization to generate a new scrambling code when an interval after previous scrambling code initialization of the data block is greater than or equal to a preset scrambling code initialization parameter threshold; scrambling the data block again based on the generated new scrambling code; and repeatedly sending the data block scrambled again. The embodiments of this application can improve efficiency of data transmission between a transmit-end device and a receive-end device.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: October 26, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yubo Yang, Chao Luo, Zheng Liu, Xiaolei Tie
  • Publication number: 20210314957
    Abstract: A resource allocation method includes: determining a resource block allocation field in downlink control information, where in response to a value indicated by five least significant bits of the resource block allocation field is greater than 20, the resource block allocation field indicates a quantity of resource block groups allocated to a terminal device and an index of a starting resource block group allocated to the terminal device. The method can be applied to the Internet of Things, such as MTC, IoT, LTE-M, M2M, etc.
    Type: Application
    Filed: June 11, 2021
    Publication date: October 7, 2021
    Inventors: Zheng YU, Chao LUO, Bingyu QU
  • Publication number: 20210277916
    Abstract: A fan module includes a first fan frame and a second fan frame. A side surface of the first fan frame includes a number of latching posts and a number of positioning portions extending toward the second fan frame. A side surface of the second fan frame defines a number of latching grooves in one-to-one correspondence with the latching posts. The side surface of the second fan frame further defines a number of rotating grooves in one-to-one correspondence with the positioning portions. Engagement between the latching posts and the latching grooves restricts a tangential relative displacement between the first fan frame and the second fan frame. Engagement between the rotating grooves and the positioning portions restricts an axial displacement between the first fan frame and the second fan frame.
    Type: Application
    Filed: April 10, 2020
    Publication date: September 9, 2021
    Inventors: XIAO-GUANG MA, ZHENG LUO
  • Publication number: 20210271321
    Abstract: This application discloses a method for training a gaze tracking model, including: obtaining a training sample set; processing the eye sample images in the training sample set by using an initial gaze tracking model to obtain a predicted gaze vector of each eye sample image; determining a model loss according to a cosine distance between the predicted gaze vector and the labeled gaze vector for each eye sample image; and iteratively adjusting one or more reference parameters of the initial gaze tracking model until the model loss meets a convergence condition, to obtain a target gaze tracking model. According to the solution provided in this application, a gaze tracking procedure is simplified, a difference between a predicted value and a labeled value can be better represented by using the cosine distance as a model loss to train a model, to improve prediction accuracy of the gaze tracking model.
    Type: Application
    Filed: May 18, 2021
    Publication date: September 2, 2021
    Inventors: Zheng ZHOU, Xing Ji, Yitong Wang, Xiaolong Zhu, Min Luo
  • Publication number: 20210222724
    Abstract: A fastening nut and a fastening assembly that includes the fastening nut. The fastening nut includes a collar and a receiving column, the receiving column includes an engageable receiving portion and a deformable receiving portion. The deformable receiving portion includes an upper barrel and a lower barrel connected to each other. The upper barrel has a right cone shape, the lower barrel has an inverted cone shape, and an outwardly-protruding bent portion is formed at a joint between the upper barrel and the lower barrel. The deformable receiving portion includes at least two holes provided at intervals in a circumferential direction of the receiving column.
    Type: Application
    Filed: January 15, 2021
    Publication date: July 22, 2021
    Inventors: Zheng LUO, Zhaobao CAO, Zhilin LI
  • Patent number: 11049441
    Abstract: Disclosed is an LED display device and a method for driving the same. The LED display device comprises: an LED array comprising LEDs; a row driving module having output terminals, each of which is connected to a corresponding LED row for providing a supply voltage; constant current sources, each of which controls a driving current flowing through a corresponding LED column when a corresponding LED row is powered by the supply voltage; and voltage limiting modules, each of which is connected between a corresponding constant current source and a corresponding LED column. Current paths through a short-circuited LED and an open-circuited LED are disconnected by a corresponding voltage limiting module when there is a short-open failure in the LEDs. The LED display device can be used to improve image quality and reduce power consumption even if there is a short-open failure in the LEDs.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: June 29, 2021
    Assignee: HANGZHOU SHIXIN TECHNOLOGY CO., LTD.
    Inventor: Zheng Luo
  • Publication number: 20210171093
    Abstract: A differential cooperative active steering system for a front-axle independent-drive vehicle with electric wheels includes a steering rack which is arranged between a first steering wheel and a second steering wheel, and is able to generate lateral displacement and pull the first and second steering wheels to steer; a planetary gear mechanism, including a first input end, a second input end and an output end; a steering angle coupling motor, connected to the first input end; and an input shaft of the steering wheel, connected to the second input end. The planetary gear mechanism can realize the coupling between an input steering angle of an input shaft of the steering wheel and an input steering angle of the steering angle coupling motor. In addition, a method for controlling the differential cooperative active steering system is provided.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 10, 2021
    Inventors: Junnian Wang, Dedong Guo, Shoulin Gao, Zheng Luo
  • Publication number: 20200373272
    Abstract: The present invention discloses a high-reliability copper alloy bonding wire for electronic packaging and a preparation method therefor; the bonding wire comprises the following raw material components in percentage by weight: a copper content being 99.75%-99.96%, a tungsten content being 0.01-0.1%, a silver content being 0.01%-0.03%, a scandium content being 0.01%-0.02%, a titanium content being 0.001%-0.03%, a chromium content being 0.001%-0.03%, and an iron content being 0.001%-0.02%. The preparation method therefor comprises: extracting high-purity copper with a purity greater than 99.99%, preparing same as copper alloy ingots, and further preparing same as as-cast copper alloy crude bars, drawing the crude bars to form copper alloy wires, subjecting same to a heat treatment, and then precise drawing, a heat treatment, and cleaning to obtain copper alloy bonding wires of different specifications.
    Type: Application
    Filed: November 23, 2017
    Publication date: November 26, 2020
    Inventors: Bin Yuan, Zheng Luo, Min Zhu, Yunguan Xu, Shuyao Peng
  • Patent number: 10844005
    Abstract: Provided is a method for preparing an N-cyclopropylmethyl aniline compound, which comprises reacting a compound represented by Formula IV with cyclopropyl formaldehyde in the presence of metal zinc and an acid to generate an N-cyclopropylmethyl aniline compound represented by Formula I. The method of the present disclosure has mild reaction conditions, short reaction time, a high yield, simple processes, simple operations and low costs, and is more applicable to industrial production.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: November 24, 2020
    Assignee: CHANG SHA JIA QIAO BIOTECH CO., LTD.
    Inventors: Liangming Luo, Chaoqun Huang, Jintao Zhu, Zheng Luo, Rong Zhang
  • Publication number: 20200320925
    Abstract: Disclosed is an LED display device and a method for driving the same. The LED display device comprises: an LED array comprising LEDs; a row driving module having output terminals, each of which is connected to a corresponding LED row for providing a supply voltage; constant current sources, each of which controls a driving current flowing through a corresponding LED column when a corresponding LED row is powered by the supply voltage; and voltage limiting modules, each of which is connected between a corresponding constant current source and a corresponding LED column. Current paths through a short-circuited LED and an open-circuited LED are disconnected by a corresponding voltage limiting module when there is a short-open failure in the LEDs. The LED display device can be used to improve image quality and reduce power consumption even if there is a short-open failure in the LEDs.
    Type: Application
    Filed: September 6, 2018
    Publication date: October 8, 2020
    Inventor: Zheng Luo
  • Patent number: 10631376
    Abstract: A LED driving system for a LED matrix having a plurality of LEDs connected in parallel. The LED driving system includes a plurality of driving modules. Each one of the plurality of driving modules drives a corresponding one of the plurality of LEDs. The plurality of LEDs are divided into a plurality of groups. The plurality of driving modules drive the plurality of LEDs ON successively group by group. In each one of the plurality of groups, the LESs are driven ON successively row by row, and for each row in each one of the plurality of groups, the LEDs are driven ON successively column by column with a programmed delay time between the LEDs in every two successive columns. Each one of the plurality of driving modules can include a grayscale control module for adjusting a brightness of the corresponding one of the plurality of LEDs.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: April 21, 2020
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Zheng Luo, Junjian Zhao, Chao Liu, Tong Chen, Yu-Huei Lee
  • Patent number: 10566901
    Abstract: A control circuit and method for a voltage converter. The control circuit having a ramp circuit, a reference generating circuit, a comparison circuit and a logic circuit. The ramp circuit generates a ramp signal that decreases from the moment the power switch is turned off and increases from the moment the power switch is turned on. The reference generating circuit generates a reference voltage. The comparison circuit compares the reference voltage with the sum of the feedback voltage and the ramp signal to generate a comparison signal. The logic circuit uses the comparison signal and a clock signal to generate the control signal to control a power switch of the voltage converter.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: February 18, 2020
    Assignee: Monolithic Power Systems, Inc.
    Inventor: Zheng Luo
  • Patent number: 10556617
    Abstract: The present invention relates to a steer-by-wire and independent-drive integrated wheel-side electric drive device, including a first double-rotor motor and a second double-rotor motor, fixedly arranged coaxially along an axial direction of a motor, an inner rotor of the first double-rotor motor is connected with a first drive shaft and is used for driving a wheel on one side to rotate; an inner rotor of the second double-rotor motor is connected with a second drive shaft and is used for driving a wheel on the other side to rotate; an outer rotor of the first double-rotor motor and an outer rotor of the second double-rotor motor are respectively connected with a driving gear by virtue of an output shaft.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: February 11, 2020
    Inventors: Junnian Wang, Dedong Guo, Zheng Luo