Patents by Inventor Haihua Liu

Haihua Liu 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: 20230119371
    Abstract: A lidar is provided, including: an emitting unit, including a plurality of laser emitters and driving circuits, where the driving circuits are configured to drive the laser emitters to emit detection laser beams for detecting a target object, the emitting unit further includes a compensation unit for a blind region, and the compensation unit for a blind region is configured to cause a target object within a short range of the lidar to receive the detection laser beams and cause reflected echoes to be received by detectors; a receiving unit, including a plurality of detectors, where the detectors are configured to receive echoes of the detection laser beams reflected by the target object and to convert the echoes into electrical signals; and a processing unit, coupled to the receiving unit and configured to receive the electrical signals for calculating the distance and/or reflectivity of the target object.
    Type: Application
    Filed: December 16, 2022
    Publication date: April 20, 2023
    Applicant: HESAI TECHNOLOGY CO., LTD.
    Inventors: Xuezhou ZHU, Kaimin YAN, Haihua LIU, Shaoqing XIANG
  • Patent number: 9464998
    Abstract: An electron microscope system includes a laser system operable to generate an optical pulse and a pump pulse and a microscope column. The microscope column includes a multiple cathode structure having a plurality of spatially separated cathode regions. Each of the cathode regions are operable to generate an electron pulse. The microscope column also includes an electron acceleration region adjacent the multiple cathode structure, a specimen region operable to support a specimen, and a detector.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: October 11, 2016
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Ahmed H. Zewail, John Spencer Baskin, Haihua Liu
  • Publication number: 20160005566
    Abstract: An electron microscope system includes a laser system operable to generate an optical pulse and a pump pulse and a microscope column. The microscope column includes a multiple cathode structure having a plurality of spatially separated cathode regions. Each of the cathode regions are operable to generate an electron pulse. The microscope column also includes an electron acceleration region adjacent the multiple cathode structure, a specimen region operable to support a specimen, and a detector.
    Type: Application
    Filed: June 19, 2015
    Publication date: January 7, 2016
    Inventors: Ahmed H. Zewail, John Spencer Baskin, Haihua Liu
  • Patent number: D1016193
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: February 27, 2024
    Inventor: Haihua Liu