Patents by Inventor Jiajun He

Jiajun He 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: 20250081151
    Abstract: The present invention provides a received signal strength (RSS)-based emergency positioning method and system for locating a target user equipment (UE). The method comprises: broadcasting sidelink signals to request UEs from surroundings to transmit identification signals; identifying a target UE based on the plurality of identification signals; estimating, by the processor, a final RSS distance of the target UE with respect to the locator based on RSS values of received uplink signals; estimating an angle of arrival for the locator; and computing location of the targe UE based on the obtained RSS distance and the obtained angle of arrival. The present invention can locate the target position without the assistance of global positioning system (GPS) and macro base station (MBS), and achieve a better localization performance than the commercial MBS and GPS-based localization approaches.
    Type: Application
    Filed: September 4, 2024
    Publication date: March 6, 2025
    Inventors: Jiajun HE, Wenxin XIONG, Hing Cheung SO
  • Publication number: 20240303394
    Abstract: The present disclosure relates to an optimization method of outlier data identification in a traffic emission quota allocation process. This method includes: constructing a traffic emission quota allocation model; calculating a unit output-input value for each input of each vehicle in a reference set D; identifying outlier vehicles by using a combination of isolation forest model-generalized super efficiency model; and removing final outlier vehicles from the reference set D to obtain a reference set D? with the final outlier vehicles being removed.
    Type: Application
    Filed: May 8, 2024
    Publication date: September 12, 2024
    Applicants: SUN YAT-SEN UNIVERSITY, GUANGDONG UNIVERSITY OF TECHNOLOGY
    Inventors: Yonghong LIU, Weichi LI, Xuelan ZENG, Zhi YU, Qingman HE, Jiajun HE
  • Patent number: 9155996
    Abstract: Provided herein are sorbents for carbon dioxide (CO2) capture, such as from natural gas and coal-fired power plant flue gases, and uses thereof.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: October 13, 2015
    Assignee: Board of Trustees of the Leland Stanford Junior University
    Inventors: Jennifer Wilcox, T. Daniel P. Stack, Zhenan Bao, Brannon Gary, Jiajun He, John To
  • Publication number: 20150232340
    Abstract: Hierarchically porous graphitic (HPG) carbon is provided via improved methods. The first approach is based on forming a 3-D polymer network from a first precursor and a second precursor and carbonizing it. The carbon in the resulting carbon structure comes from the first precursor, while the second precursor volatizes to form the pores. However, the second precursor is temperature resistant, such that carbonization of the first precursor is underway when the second precursor volatizes. The second approach is based on forming a structured polymer from first and second precursors. More specifically, the second precursor forms a second polymer having a micelle structure and the first precursor forms a first polymer that coats the micelle structure of the second polymer. The structured polymer is carbonized. Here also the carbon in the resulting carbon structure comes from the first precursor, while the second precursor volatizes to form the pores.
    Type: Application
    Filed: April 30, 2015
    Publication date: August 20, 2015
    Inventors: Zhenan Bao, John To, Jiajun He, Jennifer Wilcox, Jianguo Mei
  • Publication number: 20140286844
    Abstract: Provided herein are sorbents for carbon dioxide (CO2) capture, such as from natural gas and coal-fired power plant flue gases, and uses thereof
    Type: Application
    Filed: March 14, 2014
    Publication date: September 25, 2014
    Inventors: Jennifer Wilcox, T. Daniel P. Stack, Zhenan Bao, Brannon Gary, Jiajun He, John To
  • Publication number: 20140287959
    Abstract: Polymer Pen Lithography is used to induce bioorthogonal reactions between treated surfaces and functionalized inks create a soft matter layer. Fluorescent and redox-active inks were used to demonstrate that the molecules were immobilized covalently and achieves precise control over ligand orientation and density within each feature. Finally, the utility was demonstrated by creating functional arrays of biologically active probes.
    Type: Application
    Filed: April 3, 2012
    Publication date: September 25, 2014
    Applicant: New York University
    Inventors: Adam B. Braunschweig, Jiajun He, Shudan Bian, Kevin B. Schesing