Patents by Inventor Yufeng Zhang

Yufeng 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).

  • Publication number: 20230288576
    Abstract: The system and method facilitates Real-Time-Kinematic (RTK) GNSS with long baseline between a rover receiver and a base station receiver, even in the presence of scintillation or ionospheric disturbances that spatially fluctuate. Residual atmospheric errors can be estimated by a dual error model in a filter to promote efficient fixing or resolution of carrier phase ambiguities.
    Type: Application
    Filed: May 13, 2022
    Publication date: September 14, 2023
    Inventors: Yufeng Zhang, Liwen Dai
  • Publication number: 20230210490
    Abstract: The present disclosure provides an ultrafast Doppler ultrasound method for estimating a blood flow velocity through repetitive compounding of multi-angle plane waves. The method includes: controlling an ultrasonic transducer to cyclically transmit plane waves (101) according to a sequence of deflection angles of {0, ??, ?, ??}; receiving echo signals (102) of the plane waves reflected by an area to be scanned; searching for three consecutive frames of signals with deflection angles in a sequence of {0, ??, ?} and {?, ??, 0} in the echo signals to obtain multiple frame groups (103); compounding the three consecutive frames of signals of each frame group to obtain a compounded radio frequency (RF) signal (105); calculating a blood flow velocity (106) according to the compounded RF signal; and performing color coding on the blood flow velocity to generate a two-dimensional (2D) blood flow velocity image (107).
    Type: Application
    Filed: December 2, 2019
    Publication date: July 6, 2023
    Inventors: Bingbing HE, Yufeng ZHANG, Zhiyao LI, Hao LI, Benxian YANG, Zerong LIAO
  • Publication number: 20230154053
    Abstract: A system and method for scene graph lossless compression based on context-based graph convolution comprises a prior encoding module, a first prior decoding module, a data encoding module located at the compressor side, a second prior decoding module, and a data decoding module located at the decompressor side; it extracts prior information from the original scene graph; for different data elements such as object location, object category, interaction relationship, and relation category, it applies different random distribution models with context-based graph convolutional neural networks to estimate the respective prior probabilities for arithmetic encoding and decoding; therefore, it can effectively exploit the contextual information within the scene graph data to perform more accurate probability prediction and thus achieve a better compression ratio.
    Type: Application
    Filed: November 3, 2022
    Publication date: May 18, 2023
    Inventors: WEIYAO LIN, YUFENG ZHANG, HUABIN LIU
  • Publication number: 20230058029
    Abstract: The disclosure relates to a connection component, a connector, a patch cord and a connector inner shell. The connection component is configured to achieve electric connection and includes two connectors. The two connectors have same butt-joint structures and are in a butt joint through the butt-joint structures, the connectors have locking mechanisms, in a locking state, the locking mechanisms lock the two connectors, and the two connectors may be separated after the locking mechanisms are switched to an unlocking state.
    Type: Application
    Filed: September 29, 2022
    Publication date: February 23, 2023
    Inventors: Xiao-Qing William Huang, Boyu Cui, Yufeng Zhang, Hai Gao
  • Patent number: 11568017
    Abstract: A computerized system for transmitting web site data to client devices. the system includes a memory storing instructions and a processor configured to execute the instructions to perform operations. The operations may include generating a plurality of clusters including a fixed number of records, receiving a request to display a list from a client device, and identifying a first cluster, from the plurality of clusters, for display at a landing page. The operations may also include generating a first transmission packet with the first cluster and a callback script, the callback script including navigation triggered functions and a callback message. The operations may also include transmitting the first transmission packet to the client device, receiving the callback message from the client, identifying a second cluster, generating a second transmission packet with the second cluster, and transmitting the second transmission packet.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: January 31, 2023
    Assignee: COUPANG CORP.
    Inventors: Byeong Yong Lee, Zhongxing Wang, Yufeng Zhang, Wenhua Zhu
  • Publication number: 20220405485
    Abstract: A text-based real-time communication interface, such as a chatbot, is presented to a user for the exchange of customer support information. A user's freeform text input is analyzed using machine learning algorithms to derive the meaning of the input text as well as to determine the user sentiment expressed therein. These determinations may be further supported by signals extracted from session-based activity, which signals can be used to infer the intended workflow of the user and whether or not that workflow was achieved. The expressed user sentiment is considered along with other historical or session-based user data to generate tailored questions and responses to be delivered in real-time to the user. The responses are displayed to the user along with information that routes the user to a workflow resolution.
    Type: Application
    Filed: July 21, 2022
    Publication date: December 22, 2022
    Applicant: Airbnb, Inc.
    Inventors: Kevin Jungmeisteris, Carter Appleton, Vibha Bamba, Guqian Du, Hwanghag Jeong, Artem Kizil, Jonathan Li On Wing, Patrick Srail, Yufeng Zhang, Cen Zhao
  • Publication number: 20220398635
    Abstract: A preliminary software feature is applied in a testing rollout to a discrete subset of customers. Survey data may be collected from those customers through a variety of sources, such as chatbot text, session workflow, historical user data, social media data, email survey data, user profile data, messaging threads, and the like. This survey data is analyzed using machine learning algorithms to derive the meaning of input text as well as to determine the user sentiment expressed therein. The outputs of this analysis are normalized across sources and aggregated at a feature-level to generate overall metrics of customer satisfaction with the feature. A holistic analysis is performed on this customer sentiment data to obtain an aggregate or combined user satisfaction score. This score is applied against a set of guardrails to determine whether to ship the feature to a broader customer base.
    Type: Application
    Filed: May 23, 2022
    Publication date: December 15, 2022
    Applicant: Airbnb, Inc.
    Inventors: Kevin Jungmeisteris, Artem Kizil, Jonathan Li On Wing, Hui Wang, Bo Zeng, Ying Zhang, Yufeng Zhang, Cen Zhao
  • Publication number: 20220374956
    Abstract: A text-based real-time communication interface, such as a chatbot, is presented to a user for the exchange of customer support information. A user's freeform text input is analyzed using machine learning algorithms to derive the meaning of the input text as well as to determine the user sentiment expressed therein. These determinations may be further supported by signals extracted from session-based activity, which signals can be used to infer the intended workflow of the user and whether or not that workflow was achieved. The expressed user sentiment is considered along with other historical or session-based user data to generate tailored questions and responses to be delivered in real-time to the user. The responses are displayed to the user along with information that routes the user to a workflow resolution.
    Type: Application
    Filed: May 23, 2022
    Publication date: November 24, 2022
    Applicant: Airbnb, Inc.
    Inventors: Kevin Jungmeisteris, Carter Appleton, Vibha Bamba, Guqian Du, Hwanghag Jeong, Artem Kizil, Jonathan Li On Wing, Patrick Srail, Yufeng Zhang, Cen Zhao
  • Patent number: 11485011
    Abstract: A robot manipulator includes: an arm body; a wrist effector, connected to the arm body; a multi-degree-of-freedom (DOF) connecting device, rotatably connected to the wrist effector; and a grabber, connected to the multi-DOF connecting device, wherein the multi-DOF connecting device is configured to receive a power output by the wrist effector and drive the grabber to rotate.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: November 1, 2022
    Assignees: CLOUDMINDS (BEIJING) TECHNOLOGIES CO., LTD., CLOUDMINDS ROBOTICS CO., LTD.
    Inventors: Haotian Cui, Xunge Yan, William Xiao-qing Huang, Cheng Luo, Yufeng Zhang
  • Publication number: 20220257218
    Abstract: An ultrasonic Doppler blood flow imaging method and system are provided.
    Type: Application
    Filed: September 28, 2020
    Publication date: August 18, 2022
    Inventors: Yufeng ZHANG, Bingbing HE, Zhiyao LI, Hao LI, Xun LANG, Junhua ZHANG
  • Publication number: 20220126460
    Abstract: The present disclosure relates to a robot and a housing thereof. The housing includes a forearm shell, an upper arm shell and a chest shell. At least one of the forearm shell, the upper arm shell and the chest shell is a flexible shell. The flexible shell includes an elastic main body layer. According to the above technical solution, the robot housing provided by the present disclosure may reduce and even avoid limitations of the housing to motion ranges of joints of the robot, and also ensures attractive appearance.
    Type: Application
    Filed: December 27, 2021
    Publication date: April 28, 2022
    Applicant: CLOUDMINDS ROBOTICS CO., LTD.
    Inventor: Yufeng ZHANG
  • Publication number: 20220058236
    Abstract: A computerized system for transmitting web site data to client devices. the system includes a memory storing instructions and a processor configured to execute the instructions to perform operations. The operations may include generating a plurality of clusters including a fixed number of records, receiving a request to display a list from a client device, and identifying a first cluster, from the plurality of clusters, for display at a landing page. The operations may also include generating a first transmission packet with the first cluster and a callback script, the callback script including navigation triggered functions and a callback message. The operations may also include transmitting the first transmission packet to the client device, receiving the callback message from the client, identifying a second cluster, generating a second transmission packet with the second cluster, and transmitting the second transmission packet.
    Type: Application
    Filed: June 2, 2021
    Publication date: February 24, 2022
    Applicant: Coupang Corp.
    Inventors: Byeong Yong LEE, Zhongxing WANG, Yufeng ZHANG, Wenhua ZHU
  • Patent number: 11055378
    Abstract: A computerized system for transmitting website data to client devices. the system includes a memory storing instructions and a processor configured to execute the instructions to perform operations. The operations may include generating a plurality of clusters including a fixed number of records, receiving a request to display a list from a client device, and identifying a first cluster, from the plurality of clusters, for display at a landing page. The operations may also include generating a first transmission packet with the first cluster and a callback script, the callback script including navigation triggered functions and a callback message. The operations may also include transmitting the first transmission packet to the client device, receiving the callback message from the client, identifying a second cluster, generating a second transmission packet with the second cluster, and transmitting the second transmission packet.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: July 6, 2021
    Assignee: Coupang Corp.
    Inventors: Byeong Yong Lee, Zhongxing Wang, Yufeng Zhang, Wenhua Zhu
  • Publication number: 20210188731
    Abstract: A one-off fertilization method suitable for winter wheat in areas with less rainfall in spring includes the following steps: (1) carrying out, on a flat wheat block which is suitable for mechanized operations and after the harvest of preceding crops, a deep ploughing or a subsoiling in combination with a rotary tillage and a one-off fertilization for land preparation, without involving any top dressing in a later stage; and (2) carrying out a seeding operation by a wheat seeder, wherein for nitrogen fertilizer, according to the nitrogen release period of a controlled-release nitrogen fertilizer, one of the following application modes is determined: applying a polyurethane-coated controlled-release nitrogen fertilizer alone or a water-based resin-coated controlled-release nitrogen fertilizer special for winter wheat alone; or applying a water-based resin-coated controlled-release nitrogen fertilizer special for winter wheat in combination with 20% to 30% of a polyurethane-coated controlled-release nitrogen fer
    Type: Application
    Filed: December 22, 2019
    Publication date: June 24, 2021
    Applicant: Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences
    Inventors: Deshui Tan, Zhaohui Liu, Haitao Lin, Yan Li, Lihua Jiang, Yingpeng Zhang, Yufeng Zhang, Xiaobin Wu
  • Publication number: 20200331141
    Abstract: A robot waist skeleton includes: a waist inner skeleton; and a waist outer skeleton, surrounding the waist inner skeleton, the waist outer skeleton being connected to the waist inner skeleton.
    Type: Application
    Filed: March 2, 2020
    Publication date: October 22, 2020
    Inventors: Haotian CUI, Xunge YAN, William Xiao-qing HUANG, Cheng LUO, Yufeng ZHANG
  • Publication number: 20200282550
    Abstract: A robot manipulator includes: an arm body; a wrist effector, connected to the arm body; a multi-degree-of-freedom (DOF) connecting device, rotatably connected to the wrist effector; and a grabber, connected to the multi-DOF connecting device, wherein the multi-DOF connecting device is configured to receive a power output by the wrist effector and drive the grabber to rotate.
    Type: Application
    Filed: March 2, 2020
    Publication date: September 10, 2020
    Inventors: Haotian CUI, Xunge YAN, William Xiao-qing HUANG, Cheng LUO, Yufeng ZHANG
  • Publication number: 20200282572
    Abstract: A robot head and neck assembly includes a head and neck inner skeleton; and a head and neck outer skeleton, disposed on an outer side of the head and neck inner skeleton, and wrapping the head and neck inner skeleton.
    Type: Application
    Filed: March 2, 2020
    Publication date: September 10, 2020
    Inventors: Haotian CUI, Xunge YAN, William Xiao-qing HUANG, Cheng LUO, Yufeng ZHANG
  • Publication number: 20200268940
    Abstract: Methods are provided for preparing liquid PRF and using the liquid PRF as a drug-delivery carrier system for other regenerative biomaterials and biomolecules. This carrier system provides more effective regenerative strategies for improved tissue wound healing, treatment, and regeneration in the body by supplying additional autologous growth factors into commonly-utilized biomaterials improving the host-tissue response to such therapies.
    Type: Application
    Filed: May 15, 2017
    Publication date: August 27, 2020
    Inventors: Richard J. MIRON, Yufeng ZHANG
  • Patent number: 10235924
    Abstract: A liquid crystal displaying method, apparatus and device are provided. For each frame of picture, a timing controller firstly sends N STV signals corresponding to the frame of picture to a gate driver, and the gate driver controls respective rows of TFTs on a liquid crystal panel sequentially according to the N STV signals to be pre-turned on for N times; and the timing controller sends the (N+1)-th STV signal to the gate driver before an end of the first time pre-turning-on of the M-th row of TFTs, and the gate driver control the respective rows of TFTs on the liquid crystal panel sequentially according to the (N+1)-th STV signal to be turned on for the (N+1)-th time, so that the source driver finally charges respective rows of storage capacitors and pre-charge respective rows of storage capacitors of the rows of TFTs pre-turned on.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: March 19, 2019
    Assignees: Hisense Electric Co., Ltd., Hisense USA Corporation, Hisense International Co., Ltd.
    Inventors: Dongxin Qi, Yufeng Zhang
  • Publication number: 20170004785
    Abstract: A liquid crystal displaying method, apparatus and device are provided. For each frame of picture, a timing controller firstly sends N STV signals corresponding to the frame of picture to a gate driver, and the gate driver controls respective rows of TFTs on a liquid crystal panel sequentially according to the N STV signals to be pre-turned on for N times; and the timing controller sends the (N+1)-th STV signal to the gate driver before an end of the first time pre-turning-on of the M-th row of TFTs, and the gate driver control the respective rows of TFTs on the liquid crystal panel sequentially according to the (N+1)-th STV signal to be turned on for the (N+1)-th time, so that the source driver finally charges respective rows of storage capacitors and pre-charge respective rows of storage capacitors of the rows of TFTs pre-turned on.
    Type: Application
    Filed: February 8, 2016
    Publication date: January 5, 2017
    Inventors: Dongxin QI, Yufeng ZHANG