Patents by Inventor Xizhe Li

Xizhe Li 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: 11353442
    Abstract: The invention provides a physical simulation experimental device and method for water invasion and drainage gas recovery in gas reservoir, and the experimental device includes: a heterogeneous reservoir model having a first core holder, a second core holder, a third core holder and a fourth core holder, wherein the third core holder is connected between the first core holder and the second core holder, and the fourth core holder is connected between an outlet end of the first core holder and an outlet end of the second core holder; a gas injection mechanism having a gas injection bottle and a gas injection cylinder; a water body simulation mechanism having a water storage tank and a water injection pump. The invention can simulate and reveal different drainage gas recovery modes, timings, scales and their influences on the recovery ratio of the gas reservoir.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: June 7, 2022
    Assignee: PETROCHINA COMPANY LIMITED
    Inventors: Xuan Xu, Xizhe Li, Yong Hu, Yongxin Han, Yunsheng Wei, Yujin Wan, Chunyan Jiao, Zhenhua Guo, Haifa Tang, Weigang Huang, Guangzhen Chu, Yunhe Su
  • Publication number: 20200132656
    Abstract: The invention provides a physical simulation experimental device and method for water invasion and drainage gas recovery in gas reservoir, and the experimental device includes: a heterogeneous reservoir model having a first core holder, a second core holder, a third core holder and a fourth core holder, wherein the third core holder is connected between the first core holder and the second core holder, and the fourth core holder is connected between an outlet end of the first core holder and an outlet end of the second core holder; a gas injection mechanism having a gas injection bottle and a gas injection cylinder; a water body simulation mechanism having a water storage tank and a water injection pump. The invention can simulate and reveal different drainage gas recovery modes, timings, scales and their influences on the recovery ratio of the gas reservoir.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 30, 2020
    Inventors: Xuan Xu, Xizhe Li, Yong Hu, Yongxin Han, Yunsheng Wei, Yujin Wan, Chunyan Jiao, Zhenhua Guo, Haifa Tang, Weigang Huang, Guangzhen Chu, Yunhe Su
  • Patent number: 8806206
    Abstract: The present invention provides a cooperation method of a mobile hardware secure unit and a fixed hardware secure unit, comprising: providing user's identification information of a mobile hardware secure unit; providing platform's identification information of a computer-based or other-device-based fixed hardware secure unit; establishing a bidirectional communication pipe between the mobile and fixed hardware secure unit; and binding the mobile and fixed hardware secure units through interaction of the user's identification information and the platform's identification information. The present invention further provides a cooperation system of a mobile hardware secure unit and a fixed hardware secure unit as well as a computer device, with which the security solution based on a fixed hardware secure unit can be combined with a mobile hardware secure unit securing a user's identity.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: August 12, 2014
    Assignees: Beijing Lenovo Software Ltd., Lenovo (Beijing) Limited
    Inventors: Xizhe Li, Hongping Tian, Wei Xie, Yun Gu, Xingzhong Mao, Chentao Yu
  • Patent number: 8090946
    Abstract: The present invention discloses an inter-trusted-computing-system binding method based on hardware security unit, comprising steps of: configuring binding requirements for hardware security units of trusted computing systems; exchanging hardware security unit information between the hardware security units of the trusted computing systems to be bound, and checking device validities of the counter-party hardware security unit; and if passing the validation check, it continues to the following steps; otherwise, exiting the binding procedure; respectively verifying whether the binding meets their respective binding requirements by the hardware security units of the trusted computing systems to be bound; and if passing the verification, it continues to the following steps; otherwise, exiting the binding procedure; and respectively storing platform information and hardware security unit binding information by the hardware security units of the trusted computing systems.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: January 3, 2012
    Assignee: Lenovo (Beijing) Limited
    Inventors: Xizhe Li, Chunhua Wang, Xu Wang, Song Cheng
  • Publication number: 20090254749
    Abstract: The present invention provides a cooperation method of a mobile hardware secure unit and a fixed hardware secure unit, comprising: providing user's identification information of a mobile hardware secure unit; providing platform's identification information of a computer-based or other-device-based fixed hardware secure unit; establishing a bidirectional communication pipe between the mobile and fixed hardware secure unit; and binding the mobile and fixed hardware secure units through interaction of the user's identification information and the platform's identification information. The present invention further provides a cooperation system of a mobile hardware secure unit and a fixed hardware secure unit as well as a computer device, with which the security solution based on a fixed hardware secure unit can be combined with a mobile hardware secure unit securing a user's identity.
    Type: Application
    Filed: December 19, 2008
    Publication date: October 8, 2009
    Applicants: BEIJING LENOVO SOFTWARE LTD., LENOVO (BEIJING) LIMITED
    Inventors: Xizhe Li, Hongping Tian, Wei Xie, Yun Gu, Xingzhong Mao, Chentao Yu
  • Publication number: 20090182669
    Abstract: The present invention discloses a card data management device comprising: a server interface module, for connecting the card data management device with a server and sending authorized data obtained from the server to a data management module; a data management module, for receiving the authorized data from the server via the server interface module and assigning the authorized data to at least one sub account; a binding relationship management module, for binding the at least one sub account with at least one card to create a binding relationship and downloading the authorized data in the at least one sub account to the corresponding card according to the binding relationship; a card management module connected with the binding relationship management module, for connecting and identifying the at least one card and sending the result of the card identification to the binding relationship management module.
    Type: Application
    Filed: January 9, 2009
    Publication date: July 16, 2009
    Applicant: Lenovo (Beijing) Limited
    Inventors: Hongping Tian, Xizhe Li, Wei Xie, Yun Gu
  • Publication number: 20090177616
    Abstract: A hardware security unit and a multiple-valued logic operational method thereof are provided, which comprises at least a first and a second multiple-valued logic calculation units, an operational unit, a judgment unit and an execution unit. The first multiple-valued logic calculation unit and the second multiple-valued logic calculation unit are connected to the operational unit, each of the multiple-valued logic calculation units comprises at least three registers for describing expected logical state, current logical state and a multiple-valued logic operator of a specific entity of the hardware security unit.
    Type: Application
    Filed: December 23, 2008
    Publication date: July 9, 2009
    Applicants: BEIJING LENOVO SOFTWARE LTD., LENOVO (BEIJING) LIMITED
    Inventors: Xizhe Li, Hongping Tian, Wei Xie, Yun Gu
  • Publication number: 20080126802
    Abstract: The present invention discloses an inter-trusted-computing-system binding method based on hardware security unit, comprising steps of: configuring binding requirements for hardware security units of trusted computing systems; exchanging hardware security unit information between the hardware security units of the trusted computing systems to be bound, and checking device validities of the counter-party hardware security unit; and if passing the validation check, it continues to the following steps; otherwise, exiting the binding procedure; respectively verifying whether the binding meets their respective binding requirements by the hardware security units of the trusted computing systems to be bound; and if passing the verification, it continues to the following steps; otherwise, exiting the binding procedure; and respectively storing platform information and hardware security unit binding information by the hardware security units of the trusted computing systems.
    Type: Application
    Filed: July 2, 2007
    Publication date: May 29, 2008
    Applicant: LENOVO (BEIJING) LIMITED
    Inventors: Xizhe Li, Chunhua Wang, Xu Wang, Song Cheng