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).

  • Publication number: 20210097589
    Abstract: Disclosed is a method for authenticating network transaction. The method comprises receiving, by an authentication center, a real-time user behavior during an electronic transaction; receiving, by the authentication center, a software behavior during the electronic transaction; performing, by the authentication center, a user verification of the real-time user behavior by comparing with a user behavior certificate maintained by the authentication center; performing, by the authentication center, a software verification of the software behavior by comparing with a software behavior certificate maintained by the authentication center; in response to a determination that the user verification fails or the software verification fails, terminating, by the authentication center, the electronic transaction.
    Type: Application
    Filed: May 14, 2019
    Publication date: April 1, 2021
    Applicant: TONGJI UNIVERSITY
    Inventors: Changjun JIANG, Hongzhong CHEN, Chungang YAN, Zhijun DING, Wangyang YU, Yonglong GE
  • Patent number: 10754865
    Abstract: A method for mining user cyclic patterns comprises steps: S1: a user behavior recording module recording time of behaviors of each user; S2: a user behavior time sequence generation module performing batch processing to the behaviors of each user to generate a time sequence of the behaviors of the user by using day as time granularity; and S3: a user behavior cyclic pattern acquisition module generating time sequence cyclic patterns from the time sequence according to frequent patterns.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: August 25, 2020
    Assignee: TONGJI UNIVERSITY
    Inventors: Changjun Jiang, Chungang Yan, Hongzhong Chen, Zhijun Ding, Bing Xu
  • Publication number: 20200258959
    Abstract: A display panel, a manufacturing method thereof and a display device are provided. The display panel includes a base substrate, a pixel definition layer, a light emitting layer and a spacer. The pixel definition layer is configured to define each of subpixels in the display panel and includes a groove structure which is disposed between adjacent subpixels, the spacer is disposed in the groove structure, the light emitting layer is disposed on a side of the pixel definition layer and the spacer away from the base substrate, and a thermal expansion efficient of the spacer is greater than a thermal expansion efficient of the light emitting layer.
    Type: Application
    Filed: May 13, 2019
    Publication date: August 13, 2020
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Bo Mao, Mengyu Luan, Changjun Jiang, Jun Li, Lang Liu, Zexu Liu, Hongtao Guo
  • Patent number: 10558792
    Abstract: A construction and analysis system of touch screen user keypress behavior pattern, and an identity recognition method thereof.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: February 11, 2020
    Inventors: Changjun Jiang, Chungang Yan, Hongzhong Chen, Zhijun Ding, Hongbo Zhang
  • Publication number: 20200013061
    Abstract: System and methods for performing behavior consistency verification are described. The method may include receiving user behavior data containing user activities performed during electronic transactions. The method may include retrieving expected behavior data corresponding to the user behavior data. The method may include generating a behavior consistency measurement based on the user behavior data and the expected behavior data. The method may further include transmitting the behavior consistency measurement in response to the receiving of the user behavior data. The behavior consistency measurement indicates a degree of consistency between the user behavior data and the expected behavior data.
    Type: Application
    Filed: July 3, 2018
    Publication date: January 9, 2020
    Inventors: Changjun JIANG, Hongzhong CHEN, Chungang YAN, Zhijun DING, Mimi WANG, Peihai ZHAO
  • Patent number: 10388709
    Abstract: A pixel defining layer and a production method thereof, a display panel and a production method thereof, and a display apparatus are all provided. The pixel defining layer has a first lyophilic layer, a first lyophobic layer on the first lyophilic layer, a second lyophilic layer on the first lyophobic layer, and a second lyophobic layer on the second lyophilic layer.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: August 20, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Wenbin Jia, HuiFeng Wang, Xiang Wan, Changjun Jiang, Li Sun
  • Publication number: 20190203339
    Abstract: The present disclosure provides an evaporation device and an evaporation method. The evaporation device includes: an evaporation chamber; a plurality of spaced conductive baffles disposed in the evaporation chamber and dividing the evaporation chamber into a plurality of evaporation sub-chambers, the conductive baffles configured to carry charges of a first polarity; an evaporation source disposed in at least one of the evaporation sub-chambers; and a particle charging circuit disposed in at least one of the evaporation sub-chambers. The particle charging circuit is configured to control evaporation material particles generated from the evaporation source in at least one of the evaporation sub-chambers to have charges of the first polarity.
    Type: Application
    Filed: July 4, 2018
    Publication date: July 4, 2019
    Applicants: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Bo MAO, Changjun JIANG, Jun LI, Langlang HA, Yikun DOU, Yang XU, Mengyu LUAN
  • Publication number: 20190163925
    Abstract: The present invention discloses a method and system configured for monitoring and verifying software behavior, comprising: receiving, by a software behavior verification system based on a physical hardware system, legal user behavior data containing user activities performed during legal electronic transactions and storing the legal user behavior data as a software behavior model; monitoring, by a software behavior monitor, data packets transmitted in a transaction, and sending data packets to the software behavior verification system; retrieving, by the behavior verification system, expected key sequences and information in the data packets; comparing the key sequences and information retrieved from the data packets with that of the software behavior model; if the key sequences and information retrieved from the data packets does not consistence with the software behavior model, it is determined that the transaction is an illegal electronic transactions, and the transaction is closed.
    Type: Application
    Filed: January 10, 2019
    Publication date: May 30, 2019
    Applicant: TONGJI UNIVERSITY
    Inventors: Changjun JIANG, Hongzhong CHEN, Chungang YAN, Zhijun DING, Wangyang YU, Junzhu ZHONG
  • Publication number: 20190148468
    Abstract: A pixel defining layer and a production method thereof, a display panel and a production method thereof, and a display apparatus are all provided. The pixel defining layer has a first lyophilic layer, a first lyophobic layer on the first lyophilic layer, a second lyophilic layer on the first lyophobic layer, and a second lyophobic layer on the second lyophilic layer.
    Type: Application
    Filed: May 23, 2018
    Publication date: May 16, 2019
    Inventors: Wenbin Jia, HuiFeng Wang, Xiang Wan, Changjun Jiang, Li Sun
  • Publication number: 20190087470
    Abstract: The present invention provides a system and a method for mining user cyclic patterns. In the system, a user behavior recording module is used for recording time of behaviors of each user; a user behavior time sequence generation module is used for performing batch processing to the behaviors of each user to form a time sequence of the behaviors of the user; a user behavior cyclic pattern acquisition module is used for generating cyclic patterns from the time sequence according to frequent patterns; and a user cyclic pattern storage module is used for receiving the cyclic patterns generated by the user behavior cyclic pattern acquisition module and storing the cyclic patterns in a database of the user cyclic pattern storage module.
    Type: Application
    Filed: January 15, 2016
    Publication date: March 21, 2019
    Applicant: TONGJI UNIVERSITY
    Inventors: CHANGJUN JIANG, CHUNGANG YAN, HONGZHONG CHEN, ZHIJUN DING, BING XU
  • Publication number: 20190073457
    Abstract: A construction and analysis system of touch screen user keypress behavior pattern, and an identity recognition method thereof.
    Type: Application
    Filed: January 15, 2016
    Publication date: March 7, 2019
    Applicant: TONGJI UNIVERSITY
    Inventors: CHANGJUN JIANG, CHUNGANG YAN, HONGZHONG CHEN, ZHIJUN DING, HONGBO ZHANG
  • Patent number: 10139656
    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: Grant
    Filed: April 14, 2016
    Date of Patent: November 27, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yangkun Jing, Changjun Jiang
  • Publication number: 20180315052
    Abstract: System and methods for performing behavior evaluation based on an immunity system is provided. A method may include receiving historical behavior data containing user activities performed in an electronic transaction. The method may include extracting normal transaction sequences and abnormal transaction sequences from the historical behavior data. The method may include storing the normal transaction sequences into a normal transaction library and the abnormal transaction sequences into an abnormal transaction library. The method may further include, in response to receiving a current behavior data, extracting a current transaction sequence from the current behavior data, and in response to a successful matching comparison of the current transaction sequence with an abnormal transaction sequence in the abnormal transaction library, transmitting a first abnormal evaluation result as a response to the receiving of the current behavior data.
    Type: Application
    Filed: July 5, 2018
    Publication date: November 1, 2018
    Inventors: Changjun JIANG, Chungang YAN, Hongzhong CHEN, Zhijun DING, Shaoping JIANG
  • Patent number: 10094653
    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: Grant
    Filed: June 20, 2017
    Date of Patent: October 9, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yangkun Jing, Changjun Jiang
  • 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