Patents by Inventor Yifei Zhang

Yifei Zhang 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: 10579883
    Abstract: The disclosure discloses a method for detecting a vehicle in a driving assisting system. The method for detecting a vehicle in a driving assisting system includes: obtaining an image to be detected, and determining the positions of lane lines in the image to be detected; determining a valid area in the image to be detected, according to the positions of the lane lines, and the velocity of the present vehicle; and determining a detected vehicle in the valid area according to T preset weak classifiers, and thresholds corresponding to the respective weak classifiers, wherein T is a positive integer.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: March 3, 2020
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Hongli Ding, Yu Gu, Yifei Zhang, Kai Zhao, Ying Zhang
  • Publication number: 20200043192
    Abstract: A method and a device for detecting an object stacking state, and an intelligent shelf are disclosed. The method comprises capturing a color image and a depth image that are aligned with each other above a reference plane in which the object is located, identifying the object and an area occupied by the object in the color image, converting the depth image into a height map relative to the reference plane, determining a reference height of the object based on the height map and the area occupied by the object, acquiring an actual height of the object based on the identified object, and comparing the reference height of the object with the actual height of the object and judging a stacking state of the object based on a result of the comparing.
    Type: Application
    Filed: June 27, 2019
    Publication date: February 6, 2020
    Inventors: Ying ZHANG, Yifei ZHANG, Kai ZHAO
  • Patent number: 10547328
    Abstract: Systems, methods, and apparatus are provided for iteratively decoding a codeword. Once a codeword is received, the codeword is processed to generate an incremental hard decision value and a log likelihood ratio amplitude value. These values are generated by processing the codeword using a soft output Viterbi algorithm. A faulty symbol in the codeword is identified. A complete hard decision value is generated using the incremental hard decision value. The LLR amplitude value and complete hard decision value corresponding to the identified faulty symbol are selectively provided to a decoder and the decoder uses these values to decode the codeword.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: January 28, 2020
    Assignee: Marvell International Ltd.
    Inventors: Shu Li, Yifei Zhang, Wei Cao
  • Publication number: 20190382250
    Abstract: The embodiments of the disclosure provide a robot and a splicing method thereof, and a robot splicing system. The robot includes at least two sub-robots, each of the sub-robots including a body, a mobile member located at the bottom of the body, at least one first connecting mechanism and at least one second connecting mechanism located on different sides of the body, the first connecting mechanism of at least one of the sub-robots being configured such that it may be in a fit connection with the second connecting mechanism of at least one other sub-robot, and the second connecting mechanism being configured such that it may be in a fit connection with the first connecting mechanism of at least one other sub-robot.
    Type: Application
    Filed: February 27, 2018
    Publication date: December 19, 2019
    Inventors: Ying ZHANG, Yifei ZHANG, Kai ZHAO
  • Patent number: 10492976
    Abstract: A powered exoskeleton includes a leg part and a foot part. The foot part includes a foot bottom plate and a foot bottom plate driving wheel. The foot bottom plate includes a first surface and a second surface opposite to each other; and the foot bottom plate driving wheel is connected below the leg part. The foot bottom plate is movably connected to the foot bottom plate driving wheel and capable of being turned over relative to the foot bottom plate driving wheel. In the walking mode, the foot bottom plate is turned over till the first surface of the foot bottom plate faces upward and is connected below the foot bottom plate driving wheel; and in the wheeled movement mode, the foot bottom plate is turned over till a second surface of the foot bottom plate faces upward and is connected above the foot bottom plate driving wheel.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: December 3, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ying Zhang, Zhongcheng Gui, Yifei Zhang, Kai Zhao, Yu Gu, Hongli Ding
  • Patent number: 10489443
    Abstract: The present disclosure discloses a method and an apparatus of displaying information in order to solve the problems of a monotonous way of displaying information and a low efficiency of human-machine interaction in existing technologies. The method determines transaction information exchanged between a first user and a second user, determines multimedia information to be displayed based on the determined transaction information for presentation to the second user. Since the disclosed method displays information in form of multimedia information, thus enriching and diversifying the information to be displayed. When transaction information is displayed in form of multimedia information to a second user, multimedia information to be displayed may be automatically matched and converted according to the determined transaction information without the need of a first user to add the multimedia information manually.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: November 26, 2019
    Assignee: ALIBABA GROUP HOLDING LIMITED
    Inventors: Yihua He, Zhiqiang Zhang, Junpeng Ye, Lingling Ye, Yifei Zhang, Chunlei Duan, Hong Deng
  • Patent number: 10463561
    Abstract: The wearable device provided by embodiments of the present disclosure is used for enhancing physical fitness, and includes a first connection member, a second connection member, a first joint member, a second joint member, a first fixing structure, a second fixing structure, a third fixing structure, a first sensor and a first controller. According to embodiments of the present disclosure, motion control may be implemented by obtaining a motion state parameter of an arm of the user and controlling, according to the motion statement parameter, the first connection member and the second connection member to act, so that the user may adjust his walking speed and stride naturally and conveniently.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: November 5, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ying Zhang, Zhongcheng Gui, Yifei Zhang, Kai Zhao, Yu Gu, Hongli Ding
  • Publication number: 20190332194
    Abstract: Provided are a mouse and a controlling method thereof, and a computer-readable storage medium, in the field of electronic device technology. The mouse includes an upper cover and two mouse halves, wherein a scroll wheel assembly is located between the two mouse halves, each of the mouse halves has a keypad and a joystick located inside the mouse, the joysticks on the two mouse halves are movably connected to the scroll wheel assembly respectively, the mouse further comprises at least one position adjusting part each connected to the scroll wheel assembly and one of the mouse halves; the at least one position adjusting part is configured for controlling the two mouse halves to move toward or away from each other.
    Type: Application
    Filed: December 19, 2018
    Publication date: October 31, 2019
    Inventors: Yifei Zhang, Ying Zhang, Tailiang Li
  • Publication number: 20190331490
    Abstract: The present disclosure provides a distance measuring device, a distance measuring system and a distance measuring method. The distance measuring device includes a finger sleeve assembly and a communication component. The finger sleeve assembly includes a first interphalangeal joint and a second interphalangeal joint that is rotatable connected to the first interphalangeal joint. The communication component is disposed on the finger sleeve assembly and is configured to transmit and/or receive a ranging signal.
    Type: Application
    Filed: November 29, 2018
    Publication date: October 31, 2019
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yifei ZHANG, Tailiang LI, Ying ZHANG, Kai ZHAO
  • Publication number: 20190287400
    Abstract: At least one embodiment of the present disclosure disclose a method, a device, and a system for parking space navigation. The method for parking space navigation includes: acquiring, by a processor, an entry position and identity information of a vehicle; determining, by the processor, a target parking space and planning a parking route for the vehicle according to current available parking space information of a parking lot and the entry position of the vehicle; and based on the identity information of the vehicle and the parking route, controlling, by the processor, a directing apparatus in the parking lot to guide the vehicle to enter the target parking space.
    Type: Application
    Filed: September 5, 2018
    Publication date: September 19, 2019
    Inventors: Shijie CAO, Yifei ZHANG, Wei DENG
  • Patent number: 10406854
    Abstract: An omni wheel, a motion device and a control method thereof are disclosed. The omni wheel includes a center wheel and a plurality of peripheral wheels distributed in a circle with respect to an axis of the center wheel; and a peripheral wheel brake component disposed on the centre wheel and configured to control a resistance of the peripheral wheels during a rotation of the peripheral wheels. The omni wheel solves the problem of low braking performance of the motion device by increasing the resistance of the peripheral wheels during rotation, and avoids any random rotation of the peripheral wheels.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: September 10, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ying Zhang, Yifei Zhang, Kai Zhao, Yu Gu, Hongli Ding, Shuai Liu
  • Patent number: 10399620
    Abstract: The present disclosure relates to the field of robot technology, and discloses a spherical robot and a method of controlling the same. The spherical robot includes: a spherical shell, a spherical shell drive mechanism mounted inside the spherical shell to drive the spherical shell to spin about a center of sphere thereof, and a camera module. The spherical robot further includes a head shell in which the camera module is mounted, the head shell is located outside the spherical shell and is slideable along an outer surface of the spherical shell; and, the head shell is provided with a first magnetic component, the spherical shell drive mechanism is provided with a second magnetic component, and the first magnetic component is in a magnetic connection with the second magnetic component.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: September 3, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yifei Zhang, Ying Zhang, Kai Zhao, Hongli Ding, Yu Gu
  • Patent number: 10396421
    Abstract: Traveling-wave directional filters (DFs) with multiple coupling slots are disclosed. A traveling-wave directional filter may include two terminating conductive strips in a top circuit layer of a substrate, a loop resonator in a bottom layer of a substrate, and a shared ground plane. Coupling slots in the ground plane may couple the conductive strips via the loop resonator.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: August 27, 2019
    Inventors: Yifei Zhang, Shouyuan Shi, Richard Martin, Dennis Prather
  • Patent number: 10394247
    Abstract: The present disclosure provides an automatic tracking shopping cart. The automatic tracking shopping cart comprises an automatic tracking device. The automatic tracking device is fixed to a body of the shopping cart, operative to control movement of the shopping cart for tracking a target object. The automatic tracking device comprises: an image collection unit configured to collect a color image and a depth image of a field of image; a processing unit configured to identify the target object based on the collected color image and depth image, and determine a motion parameter of the shopping cart based on a position and/or movement of the target object; and a shopping cart driving unit configured to drive the shopping cart to move based on the determined motion parameter. A method for automatically controlling movement of a shopping cart to track a target object is also provided.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: August 27, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongli Ding, Yu Gu, Yue Li, Ying Zhang, Kai Zhao, Yifei Zhang
  • Patent number: 10388365
    Abstract: A circuit and method performs a write assist for a memory cell (e.g., a static random access memory cell (SRAM)). The method includes providing a lower supply voltage signal to a voltage supply node of the memory cell using a capacitor. The lower supply voltage signal is lower in voltage level than a supply voltage signal. The method further includes lowering a common signal provided to a write driver using the capacitor.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: August 20, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Yifei Zhang, Mark J. Winter
  • Publication number: 20190235228
    Abstract: Alloys of GeSbSeTe (GSST) can be used to make actively tunable infrared transmission filters that are small, fast, and solid-state. These filters can be used for hyperspectral imaging, 3D LIDAR, portable bio/chem sensing systems, thermal emission control, and tunable filters. GSST is a low-loss phase-change material that can switch from a low-index (n=3), amorphous state to a high-index (n=4.5), hexagonal state with low loss (k<0.3) over a wavelength range of 2-10 microns or more. The GSST thickness can be selected to provide pure phase modulation, pure amplitude modulation, or coupled phase and amplitude modulation. GSST can be switched thermally in an oven, optically with visible light, or electrically via Joule heating at speeds from kilohertz to Gigahertz. It operates with reversible and polarization independent transmission switching over a wide incident angle (e.g., 0-60 degrees).
    Type: Application
    Filed: January 31, 2019
    Publication date: August 1, 2019
    Inventors: Jeffrey Chou, Vladimir Liberman, Juejun Hu, Yifei Zhang, William Herzog, Jason Stewart, Christopher Roberts
  • Patent number: 10285984
    Abstract: A method and a composition for improving gut micro biota structure, selectively increase a first gut microbiota population while simultaneously decrease a second gut micro biota population in a subject. The first gut micro biota population includes a short-chain fatty acid (SCFA)-producing bacterium and the second gut microbiota population includes an endotoxin-producing bacterium.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: May 14, 2019
    Assignee: Shanghai Jiao Tong University
    Inventors: Liping Zhao, Xu Zhang, Menghui Zhang, Yufeng Zhao, Xiaoyan Pang, Xiaojun Zhang, Linghua Wang, Guang Ning, Xiaoying Li, Yifei Zhang
  • Patent number: 10289148
    Abstract: An operating device and an operating method are disclosed. The operating device includes a processing assembly and a control assembly. The control assembly includes a control body, an auxiliary unit and a collecting unit. The auxiliary unit is arranged on the control body, a limb of a user is put on said auxiliary unit, and the collecting unit is arranged on the limb of the user. The collecting unit is configured to collect trembling signals indicating limb trembling of the user, and transmit the trembling signals to the processing assembly. The processing assembly is configured to generate driving signals according to the trembling signals and transmit the driving signals to the auxiliary unit. The auxiliary unit is configured to keep a motion state of said auxiliary unit to be the same as a limb trembling state of the user according to said driving signals.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: May 14, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kai Zhao, Yu Gu, Ying Zhang, Hongli Ding, Yifei Zhang
  • Publication number: 20190109411
    Abstract: A charging dock, an electronic product, a charging system and a charging method are provided. The charging dock includes a housing, a first charging terminal, a first magnetic device, a first detection device and a first control circuit. The first charging terminal, the first magnetic device, the first detection device and the first control circuit are in the housing. The first magnetic device is to attract the charging plug near the first magnetic device to enable the charging plug to move in a direction towards the first charging terminal. The first control circuit is to control the first charging terminal to be energized when the first detection device detects that the first charging terminal is electrically coupled to the charging plug.
    Type: Application
    Filed: April 3, 2018
    Publication date: April 11, 2019
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Junmin SUN, Pan NI, Yifei ZHANG, Yan REN
  • Patent number: 10244916
    Abstract: The present application discloses a cleaning robot including a primary robot having a first controller configured to control a plurality of first sensors, a first communication module, a first moving apparatus, and a first cleaning assembly; and at least one secondary robot having a second controller configured to control a plurality of second sensors, a second communication module, a second moving apparatus, and a second cleaning assembly.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: April 2, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yu Gu, Kai Zhao, Yifei Zhang, Hongli Ding, Ying Zhang