Patents by Inventor Zhijun Han

Zhijun Han 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: 11990756
    Abstract: A multi-timescale voltage regulation method based on source-grid-load-storage multi -terminal collaboration of a power distribution network is disclosed, which comprises: establishing, based on a Petri network, a multi-mode switching control model based on voltage security event trigger to realize effective control of a global voltage; establishing multi-objective optimization taking into account a source-storage-load regulation cost and a network transmission loss to realize collaborative and dynamic control of controllable resources of a source terminal, a load terminal and a storage terminal in each operating mode; and establishing a source-storage-load multi-terminal collaboration-based distributed voltage control model based on voltage security event trigger over a short timescale by taking into account the problems of voltage magnitude being out of limit and voltage leap, and solving online an optimal control sequence of the source terminal, the load terminal and the storage terminal in a receding horiz
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: May 21, 2024
    Assignees: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, STATE GRID ELECTRIC POWER RESEARCH INSTITUTE CO. LTD
    Inventors: Dong Yue, Chunxia Dou, Zhijun Zhang, Xiaohua Ding, Jianbo Luo, Yanman Li, Kun Huang, Tao Han
  • Patent number: 11979214
    Abstract: Methods, devices, and systems for the transmission of information in a wireless communication system are disclosed. In one embodiment, a method for the transmission of information in a wireless communication system comprises receiving a downlink message, wherein the downlink message includes a first control channel element; determining a first index using the location of the first control channel element; determining a second index; determining a first orthogonal resource using the first index; determining a second orthogonal resource using the second index; spreading an uplink message using the first orthogonal resource to form a first spread signal; spreading the uplink message using a second orthogonal resource to form a second spread signal; transmitting the first spread signal using a first antenna; and transmitting the second spread signal using a second antenna.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: May 7, 2024
    Assignee: Malikie Innovations Limited
    Inventors: Hua Xu, Youn Hyoung Heo, Zhijun Cai, Andrew Mark Earnshaw, Mo-Han Fong, Sean Michael McBeath, Robert Mark Harrison
  • Publication number: 20240129115
    Abstract: In implementations of the present disclosure, there is provided an approach for generating post-quantum pre-shared keys (PPKs). A first device sends a first request including first data generated by the first device to a second device, and the first device receives a first response including second data generated by the second device from the second device. The first device derives a PPK based on the first data, the second data and a seed PPK, and then sends a second request including an identification of the seed PPK to the second device to enable the second device to determine the derived PPK. Then, the first device receives a second response including a confirmation to the second request from the second device. Implementations of the present disclosure can improve the efficiency of the PPK configuration and release the administrator device from tedious manual work.
    Type: Application
    Filed: October 13, 2022
    Publication date: April 18, 2024
    Inventors: Zhijun REN, Chunfeng WANG, Yue HAN
  • Publication number: 20240107552
    Abstract: A method and system to signal transmission layers or dedicated reference signal ports to be used in a multiple input multiple output system, the method including providing a downlink control signal containing information for transmission layers or dedicated reference signal ports utilized, the dedicated reference signal ports being associated with the transmission layers; and using the information to demodulate data on each transmission layer.
    Type: Application
    Filed: December 6, 2023
    Publication date: March 28, 2024
    Applicant: BlackBerry Limited
    Inventors: Hua XU, Yongkang JIA, Zhijun CAI, Youn Hyoung HEO, Andrew Mark EARNSHAW, Mo-Han FONG, Sean Michael McBEATH, Robert Mark HARRISON
  • Publication number: 20240097454
    Abstract: Disclosed are an emergency control method and system based on source-load-storage regulation and cutback. According to the method, output power of power generating sources is regulated according to a power regulating quantity and a frequency regulation requirement, an output power compensation and output frequency of each power generating source are maintained within permissible ranges, so that a balance between power supply and demand of a power distribution network is maintained; and standby energy-storage power stations are used to make up a power gap, and an external power supply system is used to assist in making up a power deficiency, so that large load disturbance can be handled make up the power gap.
    Type: Application
    Filed: July 30, 2021
    Publication date: March 21, 2024
    Applicants: NANJING UNIVERSITY OF POASTS AND TELECOMMUNICATIONS, STATE GRID ELECTRIC POWER RESEARCH INSTITUTE CO. LTD
    Inventors: Dong YUE, Chunxia DOU, Zhijun ZHANG, Wenbin YUE, Xiaohua DING, Jianbo LUO, Yanman LI, Kun HUANG, Tao HAN
  • Patent number: 11937190
    Abstract: A method for reporting power headroom-related information for a plurality of aggregated carriers. The method includes reporting in a bitmap the power headroom-related information for a number of the aggregated carriers that is less than or equal to the total number of aggregated carriers, wherein the power headroom-related information is one of a power headroom for at least one of the aggregated carriers and a path loss for at least one of the aggregated carriers.
    Type: Grant
    Filed: January 20, 2023
    Date of Patent: March 19, 2024
    Assignee: BlackBerry Limited
    Inventors: Zhijun Cai, Sean McBeath, Youn Hyoung Heo, Andrew Mark Earnshaw, Mo-Han Fong
  • Patent number: 11338806
    Abstract: A bake-steering apparatus for controlling autonomous navigation of an electric scooter includes at least one electric motor coupled to at least one wheel of the scooter to provide driving power to enable forward momentum of the scooter, at least a pair of brake pads on the scooter such that each brake pad is adapted to make mechanical braking contact with respective ones of the wheels to provide navigational steering of the scooter, and a computational module on the scooter and electrically connected to each brake pad. The computational module is adapted to receive electrical signals and compute them into corresponding braking commands so as to determine the mechanical braking contact to generate corresponding slowing and turning of the forward momentum of the scooter so as to provide navigational steering of the scooter.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: May 24, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Sanghyun Hong, Jianbo Lu, Justin Miller, Smruti Panigrahi, Timothy Feldkamp, Zhijun Han
  • Publication number: 20210070294
    Abstract: A bake-steering apparatus for controlling autonomous navigation of an electric scooter includes at least one electric motor coupled to at least one wheel of the scooter to provide driving power to enable forward momentum of the scooter, at least a pair of brake pads on the scooter such that each brake pad is adapted to make mechanical braking contact with respective ones of the wheels to provide navigational steering of the scooter, and a computational module on the scooter and electrically connected to each brake pad. The computational module is adapted to receive electrical signals and compute them into corresponding braking commands so as to determine the mechanical braking contact to generate corresponding slowing and turning of the forward momentum of the scooter so as to provide navigational steering of the scooter.
    Type: Application
    Filed: September 5, 2019
    Publication date: March 11, 2021
    Applicant: Ford Global Technologies, LLC
    Inventors: Sanghyun Hong, Jianbo Lu, Justin Miller, Smruti Panigrahi, Timothy Feldkamp, Zhijun Han
  • Patent number: D1026856
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: May 14, 2024
    Assignee: Shenzhen Grandsun Electronic Co., Inc.
    Inventors: Jiugao Peng, Haiquan Wu, Tao Han, Ruiwen Shi, Zhijun Zhang, Chuanqi Zhang