Patents by Inventor Jiahao NIU

Jiahao NIU 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: 20230289464
    Abstract: Provided are a data access method and device, a storage medium and an electronic device. The method includes: a first access request used for requesting access to data in a database is received; the first access request is parsed to obtain the following data corresponding to the first access request: a first access parameter, a first request type, and a first controlled field list; a first data protection operation is performed on the first controlled field list based on the first access parameter and the first request type to obtain a target result; and a second access request is synthesized based on the target result, and the data in the database is accessed based on the second access request, so as to obtain an access result.
    Type: Application
    Filed: July 16, 2021
    Publication date: September 14, 2023
    Inventors: Jiahao NIU, Qiang ZHANG, Dezheng WANG, Yaofeng TU, Shaolin LIU, Yonghua CHEN
  • Patent number: 11392586
    Abstract: Disclosed are a data protection method and device and a storage medium. The method includes that a database execution engine receives data request information sent by a client; a preset policy corresponding to an identity of the client carried in the data request information is acquired and the database execution engine performs a data protection operation for requested data according to the preset policy to obtain target data; and the database execution engine sends the target data to the client.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: July 19, 2022
    Assignee: ZTE CORPORATION
    Inventors: Jiahao Niu, Qiang Zhang, Shanhong Shen, Dezheng Wang
  • Publication number: 20200333403
    Abstract: Circuits and methods for testing power electronics devices. In some examples, a reconfigurable load tester includes a power conversion circuit configured to couple to a device under test (DUT). The power conversion circuit includes a number of arms, and each arm includes submodules. Each submodule includes one or more electronically-controlled switches. The reconfigurable load tester includes a controller configured for controlling the electronically-controlled switches of the submodules. The controller is configured for emulating, by controlling the electronically-controlled switches of the submodules, a plurality of electrical load levels/types on the DUT.
    Type: Application
    Filed: January 15, 2020
    Publication date: October 22, 2020
    Inventors: Fei Wang, Zihan Gao, Robert B. Martin, Jiahao Niu, Jingxin Wang, Li Zhang, Shiqi Ji
  • Publication number: 20200301917
    Abstract: Disclosed are a data protection method and device and a storage medium. The method includes that a database execution engine receives data request information sent by a client; a preset policy corresponding to an identity of the client carried in the data request information is acquired and the database execution engine performs a data protection operation for requested data according to the preset policy to obtain target data; and the database execution engine sends the target data to the client.
    Type: Application
    Filed: April 1, 2019
    Publication date: September 24, 2020
    Inventors: Jiahao NIU, Qiang ZHANG, Shanhong SHEN, Dezheng WANG