Patents by Inventor Jianping Cheng

Jianping Cheng 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: 20210070318
    Abstract: An intelligent driving control method and apparatus, and a computer storage medium are provided The method includes: obtaining a pavement image of a pavement on which a vehicle travels; determining a category of a pavement scene in the pavement image according to the obtained pavement image; and performing an intelligent driving control on the vehicle according to the determined category of the pavement scene.
    Type: Application
    Filed: November 23, 2020
    Publication date: March 11, 2021
    Inventors: Guangliang Cheng, Jianping Shi
  • Publication number: 20210025836
    Abstract: The present disclosure provides a substance identification device and a substance identification method. The substance identification device comprises: a classifier establishing unit configured to establish a classifier based on scattering density values reconstructed for a plurality of known sample materials, wherein the classifier comprises a plurality of feature regions corresponding to a plurality of characteristic parameters for the plurality of known sample materials, respectively; and an identification unit for a material to be tested, configured to match the characteristic parameter of the material to be tested with the classifier, and to identify a type of the material to be tested by obtaining a feature region corresponding to the characteristic parameter of the material to be tested.
    Type: Application
    Filed: July 22, 2020
    Publication date: January 28, 2021
    Inventors: Zhi ZENG, Xingyu PAN, Xuewu WANG, Junli LI, Ming ZENG, Jianmin LI, Ziran ZHAO, Jianping CHENG, Hao MA, Hui ZHANG, Hao YU, Bicheng LIU
  • Publication number: 20200272835
    Abstract: An intelligent driving control method, an electronic device, and a medium are provided. The method comprises: obtaining a lane line detection result of a running environment of a vehicle; determining, according to a running state of the vehicle and the lane line detection result, an estimated distance at which the vehicle drives out of a lane line; in response to the estimated distance being greater than a first preset distance value and less than or equal to a second preset distance value, determining an estimated time after which the vehicle drives out of the lane line; and performing intelligent driving control according to the estimated time.
    Type: Application
    Filed: May 8, 2020
    Publication date: August 27, 2020
    Inventors: Guangliang CHENG, Jianping SHI
  • Publication number: 20200216855
    Abstract: The present invention provide the use of Nicotiana benthamiana (N. benthamiana) HIR3s gene and/or Oryza sativa HIR3 gene in producing plants with resistance to virus and the method for making the plants thereof, the method involve: constructing NbHIR3.1, NbHIR3.2 or OsHIR3 into plant binary expression vector pCV1300 respectively, and introduced into Agrobacterium by electric shock, then transgenic plants overexpressing either NbHIR3.1 or NbHIR3.2 gene or tobacco or rice overexpressing HIR3 were produced by infection with Agrobacterium; the nucleotide sequences of NbHIR3.1, NbHIR3.2 and OsHIR3 are shown as SEQ ID NO:1, SEQ ID NO:2 and SEQ ID NO:23 respectively.
    Type: Application
    Filed: July 26, 2019
    Publication date: July 9, 2020
    Inventors: Fei YAN, Saisai LI, Yuwen LU, Jinping ZHAO, Jiejun PENG, Hongying ZHENG, Lin LIN, Ye CHENG, Jianping CHEN
  • Patent number: 10620336
    Abstract: The present disclosure relates to a method, a device and a system for inspecting a moving object based on cosmic rays, pertaining to the field of radiation imaging and safety inspection techniques. The method includes: detecting whether a speed of the inspected moving object is within a preset range; recording a motion trajectory of the moving object with a monitoring device; acquiring information about charged particles in the cosmic rays with a position sensitive detector, the information about charged particles including track information of the charged particles; determining the moving object by matching positions of the motion trajectory and the track information; reconstructing the track of the charged particles according to the information about the charged particles; and recognizing the material inside the moving object based on the track reconstruction.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: April 14, 2020
    Assignees: TSINGHUA UNIVERSITY, NUCTECH COMPANY LIMITED
    Inventors: Kejun Kang, Jianping Cheng, Zhiqiang Chen, Ziran Zhao, Junli Li, Xuewu Wang, Zhi Zeng, Qingjun Zhang, Jianping Gu, Xi Yi, Bicheng Liu, Guangming Xu, Yongqiang Wang
  • Publication number: 20200050854
    Abstract: Method and apparatus for generating a road map, electronic device, and non-transitory computer storage medium are disclosed, including: inputting a remote sensing image into a first neural network to extract first road feature information of multiple channels via the first neural network; inputting the first road feature information of multiple channels into a third neural network, to extract third road feature information of multiple channels via the third neural network, where the third neural network is a neural network trained by using road direction information as supervision information; fusing the first road feature information and the third road feature information; and generating a road map according to a fusion result.
    Type: Application
    Filed: October 17, 2019
    Publication date: February 13, 2020
    Applicant: Beijing SenseTime Technology Development Co., Ltd.
    Inventors: Guangliang CHENG, Jianping SHI
  • Publication number: 20190225989
    Abstract: A gene knockin method and a kit for gene knockin are provided.
    Type: Application
    Filed: January 19, 2018
    Publication date: July 25, 2019
    Applicant: Institute of Hematology and Blood Disease Hospital, CAMS & PUMC
    Inventors: Tao CHENG, Jianping ZHANG, Xiaolan LI, Xiao-Bing ZHANG
  • Publication number: 20180156741
    Abstract: Inspection devices and inspection methods are disclosed. The inspection method includes: performing X-ray scanning on an object being inspected so as to generate an image of the object being inspected; dividing the image of the object being inspected to determine at least one region of interest; detecting interaction between a cosmic ray and the region of interest to obtain a detection value; calculating a scattering characteristic value and/or an absorption characteristic value of the cosmic ray in the region of interest based on size information of the region of interest and the detection value; and discriminating a material attribute of the region of interest by means of the scattering characteristic value and/or the absorption characteristic value. With the above technical solutions, inspection accuracy and inspection efficiency may be improved.
    Type: Application
    Filed: September 27, 2017
    Publication date: June 7, 2018
    Inventors: Kejun Kang, Jianping Cheng, Zhiqiang Chen, Ziran Zhao, Junli Li, Xuewu Wang, Zhi Zeng, Ming Zeng, Yi Wang, Qingjun Zhang, Jianping Gu, Xi Yi, Bicheng Liu, Guangming Xu, Yongqiang Wang
  • Publication number: 20170329039
    Abstract: The present disclosure relates to a method, a device and a system for inspecting a moving object based on cosmic rays, pertaining to the field of radiation imaging and safety inspection techniques. The method includes: detecting whether a speed of the inspected moving object is within a preset range; recording a motion trajectory of the moving object with a monitoring device; acquiring information about charged particles in the cosmic rays with a position sensitive detector, the information about charged particles including track information of the charged particles; determining the moving object by matching positions of the motion trajectory and the track information; reconstructing the track of the charged particles according to the information about the charged particles; and recognizing the material inside the moving object based on the track reconstruction.
    Type: Application
    Filed: January 20, 2017
    Publication date: November 16, 2017
    Inventors: Kejun KANG, Jianping CHENG, Zhiqiang CHEN, Ziran ZHAO, Junli LI, Xuewu WANG, Zhi ZENG, Qingjun ZHANG, Jianping GU, Xi YI, Bicheng LIU, Guangming XU, Yongqiang WANG
  • Patent number: 9491842
    Abstract: The present disclosure discloses a method for controlling a standing wave accelerator and a system thereof. The method comprises: generating, by an electron gun, an electron beam; injecting the electron beam into an accelerating tube; and controlling a microwave power source to generate and input microwave with different frequencies into the accelerating tube, so that the accelerating tube switches between different resonant modes at a predetermined frequency to generate electron beams with corresponding energy. According to the above solution, it only needs to change the output frequency of the microwave power source in the process of adjusting energy, without making any change to the accelerating structure per se. Therefore, the method is easy to operate. In addition, the structure of the accelerating tube in the above system is simple, without adding a particular regulation apparatus.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: November 8, 2016
    Assignees: Nuctech Company Limited, Tsinghua University
    Inventors: Huaibi Chen, Jianping Cheng, Shuxin Zheng, Jiaru Shi, Chuanxiang Tang, Qingxiu Jin, Wenhui Huang, Yuzheng Lin, Dechun Tong, Shi Wang
  • Publication number: 20150084549
    Abstract: The present disclosure discloses a method for controlling a standing wave accelerator and a system thereof. The method comprises: generating, by an electron gun, an electron beam; injecting the electron beam into an accelerating tube; and controlling a microwave power source to generate and input microwave with different frequencies into the accelerating tube, so that the accelerating tube switches between different resonant modes at a predetermined frequency to generate electron beams with corresponding energy. According to the above solution, it only needs to change the output frequency of the microwave power source in the process of adjusting energy, without making any change to the accelerating structure per se. Therefore, the method is easy to operate. In addition, the structure of the accelerating tube in the above system is simple, without adding a particular regulation apparatus.
    Type: Application
    Filed: September 16, 2014
    Publication date: March 26, 2015
    Inventors: Huaibi CHEN, Jianping CHENG, Shuxin ZHENG, Jiaru SHI, Chuanxiang TANG, Qingxiu JIN, Wenhui HUANG, Yuzheng LIN, Dechun TONG, Shi WANG
  • Patent number: 8989344
    Abstract: A system and a method for measuring an ash content and a calorific value of a coal are provided. The system comprises: an X ray device, disposed over the coal and configured to emit an X ray to the coal; at least one X ray measuring device, disposed over the coal and configured to measure an energy spectrum of an X ray reflected by the coal; a distance sensor, disposed over the coal and configured to measure a distance between the coal and the at least one X ray measuring device; and a computing device, configured to receive the energy spectrum and the distance from the at least one X ray measuring device and the distance sensor and to compute the ash content and the calorific value of the coal according to the energy spectrum and the distance.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: March 24, 2015
    Assignee: Tsinghua University
    Inventors: Hongchang Yi, Qian Lin, Jianping Cheng
  • Patent number: 8913707
    Abstract: A photoneutron conversion target for generating photoneutrons by directing an x-ray beam at the photoneutron conversion target includes an elongated body having a first end and a second end. When the photoneutron conversion target is in use, the x-ray beam enters the body and propagates in a direction from the first end to the second end. The body of the photoneutron conversion target is shaped such that propagation of the x-ray beam is substantially proportionate to an intensity distribution of the x-ray beam, so that the greater an intensity of x-rays of the x-ray beam, the greater the propagation distance of the x-rays within the body of the photoneutron conversion target. The photoneutron conversion target according to the invention can make full use of the x-ray beam so as to increase a yield of photoneutrons.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: December 16, 2014
    Assignees: Tsinghua University, Nuctech Company Limited
    Inventors: Kejun Kang, Haifeng Hu, Yigang Yang, Zhiqiang Chen, Qitian Miao, Jianping Cheng, Yuanjing Li, Yinong Liu, Hua Peng, Tiezhu Li, Ziran Zhao, Yaohong Liu, Wanlong Wu
  • Patent number: 8396189
    Abstract: A photoneutron-x ray source includes a photoneutron conversion target, which outputs both photoneutrons and x-rays simultaneously. The photoneutron-x ray source includes an x-ray generator for generating an x-ray main beam that is applied to the photoneutron conversion target. The photoneutron conversion target generates photoneutrons upon the application of the x-ray main beam to the photoneutron conversion target. The photoneutron conversion target has a body that defines a passageway extending through the body and that is structured such that a first x-ray beam of the x-ray main beam can pass through the passageway without any reaction with the body, while a second x-ray beam of the x-ray main beam can enter the body and react with the body to emit the photoneutrons.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: March 12, 2013
    Assignees: Tsinghua University, Nuctech Company Limited
    Inventors: Kejun Kang, Haifeng Hu, Yigang Yang, Zhiqiang Chen, Qitian Miao, Jianping Cheng, Yuanjing Li, Yinong Liu, Hua Peng, Tiezhu Li, Ziran Zhao, Yaohong Liu, Wanlong Wu
  • Patent number: 8374310
    Abstract: A method and a system for contraband detection in an object using photoneutrons and x-rays includes an x-ray generator that generates an x-ray main beam including a first x-ray beam and a second x-ray beam, the first x-ray beam being directed to pass through the object. A photoneutron conversion target is arranged to receive the second x-ray beam so as to generate photoneutrons, the photoneutrons being directed to enter the object and react with the object to emit characteristic ?-rays. An x-ray detecting arrangement is arranged to receive the first x-ray beam that has passed through the object in order to perform x-ray imaging detection of the detected object. A ?-ray detecting arrangement is arranged to receive the characteristic ?-rays in order to perform neutron detection of the object based on the characteristic ?-rays. The x-ray imaging detection and the neutron detection are simultaneously performed.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: February 12, 2013
    Assignees: Tsinghua University, Nuctech Company Limited
    Inventors: Kejun Kang, Haifeng Hu, Yigang Yang, Zhiqiang Chen, Qitian Miao, Jianping Cheng, Yuanjing Li, Yinong Liu, Hua Peng, Tiezhu Li, Ziran Zhao, Yaohong Liu, Wanlong Wu
  • Patent number: 8217815
    Abstract: A Sigma-Delta modulator with a shared operational amplifier (op-amp) includes an integrated circuit, having two integrators sharing the op-amp, capable of integrating two input signals of the two integrators; a plurality of quantizers, coupled to the integrating circuit, for comparing outputting signals of the integrators with a predetermined signal and then generating digital outputting signals; a plurality of DACs, respectively coupled to the quantizers, for converting the digital outputting signals to analog feedback signals to the integrators; and a clock generator, for providing clock signals to the integrating circuit and the quantizers. Accordingly, layout area and power consumption of the modulator are reduced due to the shared op-amp.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: July 10, 2012
    Assignee: MStar Semiconductor, Inc.
    Inventors: Jianqiu Chen, Sterling Smith, Jianping Cheng
  • Publication number: 20110063155
    Abstract: A Sigma-Delta modulator with a shared operational amplifier (op-amp) includes an integrated circuit, having two integrators sharing the op-amp, capable of integrating two input signals of the two integrators; a plurality of quantizers, coupled to the integrating circuit, for comparing outputting signals of the integrators with a predetermined signal and then generating digital outputting signals; a plurality of DACs, respectively coupled to the quantizers, for converting the digital outputting signals to analog feedback signals to the integrators; and a clock generator, for providing clock signals to the integrating circuit and the quantizers. Accordingly, layout area and power consumption of the modulator are reduced due to the shared op-amp.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 17, 2011
    Applicant: MSTAR SEMICONDUCTOR, INC.
    Inventors: Jianqiu Chen, Sterling Smith, Jianping Cheng
  • Patent number: 7881424
    Abstract: A method for calibrating a dual-energy CT system and an image reconstruction method are disclosed to calculate images of atomic number and density of a scanned object as well as its attenuation coefficient images at any energy level. The present invention removes the effect from a cupping artifact due to X-ray beam hardening. The method for calibrating a dual-energy CT system is provided comprising steps of selecting at least two different materials, detecting penetrative rays from dual-energy rays penetrating said at least two different materials under different combinations of thickness to acquire projection values, and creating a lookup table in a form of correspondence between said different combinations of thickness and said projection values.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: February 1, 2011
    Assignees: Tsinghua University, Nuctech Company Limited
    Inventors: Li Zhang, Zhiqiang Chen, Gnowei Zhang, Jianping Cheng, Yuanjing Li, Yinong Liu, Yuxiang Xing, Ziran Zhao, Yongshun Xiao
  • Publication number: 20100266103
    Abstract: A photoneutron-x ray source includes a photoneutron conversion target, which outputs both photoneutrons and x-rays simultaneously. The photoneutron-x ray source includes an x-ray generator for generating an x-ray main beam that is applied to the photoneutron conversion target. The photoneutron conversion target generates photoneutrons upon the application of the x-ray main beam to the photoneutron conversion target. The photoneutron conversion target has a body that defines a passageway extending through the body and that is structured such that a first x-ray beam of the x-ray main beam can pass through the passageway without any reaction with the body, while a second x-ray beam of the x-ray main beam can enter the body and react with the body to emit the photoneutrons.
    Type: Application
    Filed: June 19, 2008
    Publication date: October 21, 2010
    Inventors: Kejun Kang, Haifeng Hu, Yigang Yang, Zhiqiang Chen, Qitian Miao, Jianping Cheng, Yuanjing Li, Yinong Liu, Hua Peng, Tiezhu Li, Ziran Zhao, Yaohong Liu, Wanlong Wu
  • Publication number: 20100246763
    Abstract: A method and a system for contraband detection in an object using photoneutrons and x-rays includes an x-ray generator that generates an x-ray main beam including a first x-ray beam and a second x-ray beam, the first x-ray beam being directed to pass through the object. A photoneutron conversion target is arranged to receive the second x-ray beam so as to generate photoneutrons, the photoneutrons being directed to enter the object and react with the object to emit characteristic ?-rays. An x-ray detecting arrangement is arranged to receive the first x-ray beam that has passed through the object in order to perform x-ray imaging detection of the detected object. A ?-ray detecting arrangement is arranged to receive the characteristic ?-rays in order to perform neutron detection of the object based on the characteristic ?-rays. The x-ray imaging detection and the neutron detection are simultaneously performed.
    Type: Application
    Filed: June 19, 2008
    Publication date: September 30, 2010
    Inventors: Kejun Kang, Haifeng Hu, Yigang Yang, Zhiqiang Chen, Qitian Miao, Jianping Cheng, Yuanjing Li