Patents by Inventor Junjun Pan

Junjun Pan 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: 12278485
    Abstract: The present disclosure discloses a distributed capacitance energy absorption verification device, which belongs to the field of direct-current high-voltage surge suppression. The distributed capacitance energy absorption verification device mainly includes a direct-current high-voltage generator, a high-voltage switch, a high-voltage capacitor bank, an isolation transformer, an energy absorption device, a high-voltage sphere gap short-circuit switch and other components. The high-voltage capacitor bank is used for simulating a distributed capacitance, and the high-voltage sphere gap short-circuit switch is used for simulating a short-circuit fault of a direct-current high-voltage system, thereby implementing performance verification of the energy absorption device.
    Type: Grant
    Filed: November 13, 2024
    Date of Patent: April 15, 2025
    Assignee: Hefei Institutes of Physical Sciences, Chinese Academy of Sciences
    Inventors: CaiChao Jiang, Bo Liu, ZhiMin Liu, ShiYong Chen, JunJun Pan, Sheng Liu, YuanLai Xie
  • Patent number: 10529132
    Abstract: Disclosed is a method for real-time cutting of digital organ based on a metaball model and a hybrid driving method, including a cutting procedure for driving a model using a position-based dynamics and a meshless method, a cutting mode which begins from a metaball driven by the position-based dynamics, proceeds to a point set driven by the meshless method and then create a new metaball. The method includes: a preprocessing procedure which performs an initialization operation while reading a model file; a deforming procedure which drives a model using a method based on the position-based dynamics; a cutting procedure which drives the model using the hybrid driving method and performs cutting using said cutting mode; and a rendering procedure which renders the model during the second and third procedures.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: January 7, 2020
    Assignee: BEIHANG UNIVERSITY
    Inventors: JunJun Pan, Shizeng Yan, Qinping Zhao
  • Patent number: 10275922
    Abstract: Disclosed relates to a method for skinning technology based on extended PBD and for weight retargeting in character animation. A corresponding tetrahedral mesh is generated for a given triangular mesh; a tensile constraint, a volume constraint, a self-collision constraint and an energy constraint of the extended PBD are initialized for the tetrahedral mesh, and vertex weights of the triangular mesh and the tetrahedral mesh are optimized simultaneously; the deformations of the triangular and the tetrahedral meshes are implemented through LBS technique; deformation results of the LBS are optimized through extended PBD; the joint region of the triangular mesh is smoothed through a Laplacian smoothing; bi-harmonic distance fields of the original mesh and a new mesh are calculated respectively, and two corresponding vertices of the mesh are given and a prediction function is defined; A weight retargeting algorithm is implemented in the present application and has a good practicability.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: April 30, 2019
    Assignee: BEIHANG UNIVERSITY
    Inventors: Junjun Pan, Lijuan Chen
  • Patent number: 10268774
    Abstract: Embodiments of the present application relate to a method for displaying a web page, a system for displaying a web page, and a computer program product for displaying a web page. A method for displaying a web page is provided. The method includes pre-processing text information to be picture processed in a web page, creating a picture, generating a position description for each text block in the picture, filling the corresponding text blocks into the picture based on the position descriptions, generating a call address for the picture, and correspondingly saving the call address and the position description of each text block as metadata. If an access request for the web page is received, invoking the metadata, loading the picture, selecting at least one corresponding text block from the picture, and displaying the at least one text block is performed.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: April 23, 2019
    Assignee: Alibaba Group Holding Limited
    Inventors: Junwen Chen, Junjun Pan
  • Publication number: 20180182152
    Abstract: Disclosed relates to a method for skinning technology based on extended PBD and for weight retargeting in character animation. A corresponding tetrahedral mesh is generated for a given triangular mesh; a tensile constraint, a volume constraint, a self-collision constraint and an energy constraint of the extended PBD are initialized for the tetrahedral mesh, and vertex weights of the triangular mesh and the tetrahedral mesh are optimized simultaneously; the deformations of the triangular and the tetrahedral meshes are implemented through LBS technique; deformation results of the LBS are optimized through extended PBD; the joint region of the triangular mesh is smoothed through a Laplacian smoothing; bi-harmonic distance fields of the original mesh and a new mesh are calculated respectively, and two corresponding vertices of the mesh are given and a prediction function is defined; A weight retargeting algorithm is implemented in the present application and has a good practicability.
    Type: Application
    Filed: September 21, 2017
    Publication date: June 28, 2018
    Inventors: JUNJUN PAN, LIJUAN CHEN
  • Publication number: 20170286563
    Abstract: Embodiments of the present application relate to a method for displaying a web page, a system for displaying a web page, and a computer program product for displaying a web page. A method for displaying a web page is provided. The method includes pre-processing text information to be picture processed in a web page, creating a picture, generating a position description for each text block in the picture, filling the corresponding text blocks into the picture based on the position descriptions, generating a call address for the picture, and correspondingly saving the call address and the position description of each text block as metadata. If an access request for the web page is received, invoking the metadata, loading the picture, selecting at least one corresponding text block from the picture, and displaying the at least one text block is performed.
    Type: Application
    Filed: April 5, 2017
    Publication date: October 5, 2017
    Inventors: Junwen Chen, Junjun Pan
  • Patent number: 9652553
    Abstract: Embodiments of the present application relate to a method for displaying a web page, a system for displaying a web page, and a computer program product for displaying a web page. A method for displaying a web page is provided. The method includes pre-processing text information to be picture processed in a web page, creating a picture, generating a position description for each text block in the picture, filling the corresponding text blocks into the picture based on the position descriptions, generating a call address for the picture, and correspondingly saving the call address and the position description of each text block as metadata. If an access request for the web page is received, invoking the metadata, loading the picture, selecting at least one corresponding text block from the picture, and displaying the at least one text block is performed.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: May 16, 2017
    Assignee: Alibaba Group Holding Limited
    Inventors: Junwen Chen, Junjun Pan
  • Publication number: 20150019956
    Abstract: Embodiments of the present application relate to a method for displaying a web page, a system for displaying a web page, and a computer program product for displaying a web page. A method for displaying a web page is provided. The method includes pre-processing text information to be picture processed in a web page, creating a picture, generating a position description for each text block in the picture, filling the corresponding text blocks into the picture based on the position descriptions, generating a call address for the picture, and correspondingly saving the call address and the position description of each text block as metadata. If an access request for the web page is received, invoking the metadata, loading the picture, selecting at least one corresponding text block from the picture, and displaying the at least one text block is performed.
    Type: Application
    Filed: July 3, 2014
    Publication date: January 15, 2015
    Inventors: Junwen Chen, Junjun Pan