Patents by Inventor Changjun Jiang

Changjun Jiang 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: 10037495
    Abstract: A clustering coefficient-based adaptive clustering method, according to the categories of extracted data point pairs and the magnitude of association relations between data points extracted each time, determining to which category the data points belong, and the number of the categories, and establishing association relations between the data points and association relations between the categories; pre-segmenting each category and calculating the intra-category similarities of two sub-categories and inter-category similarities of the two sub-categories, judging whether the two pre-segmented sub-categories satisfy a segmentation condition, if so, then accepting the pre-segmentation; if not, then canceling the pre-segmentation; calculating the intra-category similarities and inter-category similarities of two categories having an association relation, judging whether the two categories satisfy a merging condition, if so, then merging the two categories to generate a new category; if not, then abandoning the mer
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: July 31, 2018
    Assignee: TONGJI UNIVERSITY
    Inventors: Changjun Jiang, Hongzhong Chen, Chungang Yan, Zhijun Ding, Mingjie Zhong, Haichun Sun
  • Publication number: 20170284791
    Abstract: The present invention provides a detection device and a detection method. The detection device comprises a light source module, a receiving module, an image generation module and a judgment module. The light source module is configured to emit light towards a film at a predetermined angle, the receiving module is configured to receive interference light formed by first reflected light reflected by an upper surface of the film and second reflected light reflected by a lower surface of the film, the image generation module is configured to generate an equal thickness interference fringe image according to the interference light, and the judgment module is configured to judge whether thickness of the film is uniform according to the equal thickness interference fringe image. The detection device can perform high accuracy detection on uniformity of the thickness of a film, thereby facilitating improving display quality of a display panel.
    Type: Application
    Filed: June 20, 2017
    Publication date: October 5, 2017
    Inventors: Yangkun JING, Changjun JIANG
  • Publication number: 20170278016
    Abstract: A clustering coefficient-based adaptive clustering method, according to the categories of extracted data point pairs and the magnitude of association relations between data points extracted each time, determining to which category the data points belong, and the number of the categories, and establishing association relations between the data points and association relations between the categories; pre-segmenting each category and calculating the intra-category similarities of two sub-categories and inter-category similarities of the two sub-categories, judging whether the two pre-segmented sub-categories satisfy a segmentation condition, if so, then accepting the pre-segmentation; if not, then canceling the pre-segmentation; calculating the intra-category similarities and inter-category similarities of two categories having an association relation, judging whether the two categories satisfy a merging condition, if so, then merging the two categories to generate a new category; if not, then abandoning the mer
    Type: Application
    Filed: November 28, 2014
    Publication date: September 28, 2017
    Applicant: TONGJI UNIVERSITY
    Inventors: CHANGJUN JIANG, HONGZHONG CHEN, CHUNGANG YAN, ZHIJUN DING, MINGJIE ZHONG, HAICHUN SUN
  • Publication number: 20170278102
    Abstract: An immunization detection method for a user behavior mode in an electronic transaction process, comprising a data preprocessing step of mainly processing a user operation process into a sequence format and cleaning related repeated data; a training step of mainly calculating an age value of each sequence according to a time order and according to an age evolution process, deleting aged logs according to the age values and extracting a normal sequence library; a detection step of mainly detecting whether a newly generated transaction sequence is mutated or not; and an updating step of updating age values of selves and non-selves in time according to a detection result and updating a related library set. The method is oriented to abnormal situations in the electronic transaction process, which may be misoperation by users.
    Type: Application
    Filed: September 14, 2015
    Publication date: September 28, 2017
    Applicant: TONGJI UNIVERSITY
    Inventors: CHANGJUN JIANG, CHUNGANG YAN, HONGZHONG CHEN, ZHIJUN DING, SHAOPING JIANG
  • Publication number: 20170278107
    Abstract: A system and method for authenticating network transaction trustworthiness, a bottom layer of the system supports two mainstream operating systems, i.e., Windows and Linux; basic management modules, i.e., respectively a communication management module, a certificate management module and a database management module are above the bottom layer support; a fourth-party authentication domain is above the foundation management modules; a user domain, an E-merchant domain, a third-party payment domain and the like are also provided.
    Type: Application
    Filed: December 31, 2014
    Publication date: September 28, 2017
    Applicant: TONGJI UNIVERSITY
    Inventors: CHANGJUN JIANG, HONGZHONG CHEN, CHUNGANG YAN, ZHIJUN DING, WANGYANG YU, YONGLONG GE
  • Patent number: 9709385
    Abstract: The present invention provides a detection device and a detection method. The detection device comprises a light source module, a receiving module, an image generation module and a judgment module, wherein the light source module is configured to emit light towards a film at a predetermined angle, the receiving module is configured to receive interference light formed by first reflected light reflected by an upper surface of the film and second reflected light reflected by a lower surface of the film, the image generation module is configured to generate an interference fringe image according to the interference light, and the judgment module is configured to judge whether thickness of the film is uniform according to the interference fringe image. The detection device can perform high accuracy detection on uniformity of the thickness of a film, thereby facilitating improving display quality of a display panel.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: July 18, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yangkun Jing, Changjun Jiang
  • Publication number: 20170169350
    Abstract: A method for measuring user behavior consistency degree based on a complex correspondence system, which is applied to internet payment platform security. An entire solution is divided into three stages: at a first stage, analyzing complex correspondence relation characteristics according to an existing user behavior model; at a second stage, establishing a behavior profile according to user behavior characteristics and establishing user behavior relation matrixes; and at a third stage, completing user behavior matrix decomposition according to the complex correspondence characteristics of a user, calculating a user behavior consistency degree and detecting a degree of consistency between user behaviors and expected behaviors.
    Type: Application
    Filed: December 31, 2014
    Publication date: June 15, 2017
    Applicant: TONGJI UNIVERSITY
    Inventors: CHANGJUN JIANG, HONGZHONG CHEN, CHUNGANG YAN, ZHIJUN DING, MIMI WANG, PEIHAI ZHAO
  • Publication number: 20160343123
    Abstract: The present disclosure provides in some embodiments an alignment film detecting device including: an imaging unit configured to obtain image information of the alignment grooves on the alignment film of the substrate; and an image processing unit configured to determine whether there is a defect in the alignment grooves on the alignment film based on the image information. According to the alignment film detecting device and the alignment film detecting method provided the present disclosure, the defect of the alignment film on the substrate may be detected, and the image information of the alignment grooves on the alignment film of the substrate may be obtained by the imaging unit, and a recognizing process may be implemented by the image processing unit based on the image information, so that it may accurately determine whether there is a defect in the alignment grooves.
    Type: Application
    Filed: April 14, 2016
    Publication date: November 24, 2016
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yangkun JING, Changjun JIANG
  • Publication number: 20160216102
    Abstract: The present invention provides a detection device and a detection method. The detection device comprises a light source module, a receiving module, an image generation module and a judgment module, wherein the light source module is configured to emit light towards a film at a predetermined angle, the receiving module is configured to receive interference light formed by first reflected light reflected by an upper surface of the film and second reflected light reflected by a lower surface of the film, the image generation module is configured to generate an interference fringe image according to the interference light, and the judgment module is configured to judge whether thickness of the film is uniform according to the interference fringe image. The detection device can perform high accuracy detection on uniformity of the thickness of a film, thereby facilitating improving display quality of a display panel.
    Type: Application
    Filed: June 17, 2015
    Publication date: July 28, 2016
    Inventors: Yangkun JING, Changjun JIANG
  • Publication number: 20160171494
    Abstract: The present invention relates to a software behavior monitoring and verification system, which is composed of three parts including a software behavior certificate, a three-party software behavior monitor, and a real-time software behavior verification system.
    Type: Application
    Filed: June 23, 2014
    Publication date: June 16, 2016
    Applicant: TONGJI UNIVERSITY
    Inventors: Changjun JIANG, Hongzhong; CHEN, Chungang YAN, Zhijun DING, Wangyang YU, Junzhu ZHONG
  • Publication number: 20140002462
    Abstract: The present disclosure relates to the field of communications technologies, and in particular, to a method and a mobile terminal for dynamic display of an emotion. In the method, the mobile terminal obtains a trigger event, where the trigger event is used to trigger dynamic display of an emotion. The mobile terminal searches an emotion package of the emotion according to the trigger event and obtains an animation instruction of the emotion, where the emotion package of the emotion includes a media material file of the emotion. The mobile terminal utilizes an animation capacity of the mobile terminal, and operates according to the animation instruction of the emotion, the media material file of the emotion, so as to implement the dynamic display of the emotion.
    Type: Application
    Filed: November 27, 2012
    Publication date: January 2, 2014
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Changjun Jiang, Xianjun Sha, Longhai Wu