Patents by Inventor Defang MENG

Defang MENG 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: 12361849
    Abstract: The present disclosure discloses a pixel driving circuit and a control method thereof. The pixel driving circuit includes: a signal driving module for driving a light emitting diode to emit light based on connected scanning signal lines and data signal lines; a voltage detection module connected to the signal driving module for collecting a detection voltage of the light emitting diode and comparing the detection voltage with a reference voltage to generate a control signal; and a short circuit processing module connected to the signal driving module and the voltage detection module for controlling the light emitting diode based on the control signal.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: July 15, 2025
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Defang Meng
  • Publication number: 20240177638
    Abstract: The present disclosure discloses a pixel driving circuit and a control method thereof. The pixel driving circuit includes: a signal driving module for driving a light emitting diode to emit light based on connected scanning signal lines and data signal lines; a voltage detection module connected to the signal driving module for collecting a detection voltage of the light emitting diode and comparing the detection voltage with a reference voltage to generate a control signal; and a short circuit processing module connected to the signal driving module and the voltage detection module for controlling the light emitting diode based on the control signal.
    Type: Application
    Filed: May 18, 2022
    Publication date: May 30, 2024
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Defang Meng
  • Patent number: 10690803
    Abstract: A mobile scanning inspection system, comprising a vehicle body and an inspection arm including a cross arm and a vertical arm, wherein a first inspection device and a second inspection device are provided on the cross arm; the first inspection device is on the side close to the vehicle body and it emits a first laser inspection plane parallel to the side plane of the vehicle body, and the length of the longest portion of the first laser inspection plane is longer than the length of the vehicle body; the second inspection device is provided on the side close to the vertical arm and it emits a second laser inspection plane parallel to the side plane of the vehicle body and the second laser inspection plane is centered on the vertical arm, and extends a first preset distance and a second preset distance forward and backward.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: June 23, 2020
    Assignee: NUCTECH COMPANY LIMITED
    Inventors: Tao Jiang, Yanwei Xu, Shangmin Sun, Yu Hu, Weifeng Yu, Xuejing Yang, Youai Yu, Ke Li, Defang Meng
  • Patent number: 10036626
    Abstract: Embodiments of the invention disclose a vehicle guidance system, a method for orientating a vehicle, and an inspection vehicle. The vehicle guidance system includes at least two separate reference devices; a laser scanner device, configured to emit a laser beam signals and scan a sectorial region with the laser beam so as to measure a distance of a straight connection line for connecting the laser scanner device to any of the at least two separate reference devices, and an angle between the corresponding straight connection line and a vehicle body of the vehicle, or an angle between the straight connection lines; a processor, configured to process and store data, and to determine whether the orientation of the vehicle body in real time is deviating from an initial orientation of the vehicle body upon the system starts to operate or not, in accordance with the sensed results by the laser scanner device.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: July 31, 2018
    Assignee: NUCTECH COMPANY LIMITED
    Inventors: Yanwei Xu, Defang Meng, Weifeng Yu
  • Publication number: 20180149769
    Abstract: A mobile scanning inspection system, comprising a vehicle body and an inspection arm including a cross arm and a vertical arm, wherein a first inspection device and a second inspection device are provided on the cross arm; the first inspection device is on the side close to the vehicle body and it emits a first laser inspection plane parallel to the side plane of the vehicle body, and the length of the longest portion of the first laser inspection plane is longer than the length of the vehicle body; the second inspection device is provided on the side close to the vertical arm and it emits a second laser inspection plane parallel to the side plane of the vehicle body and the second laser inspection plane is centered on the vertical arm, and extends a first preset distance and a second preset distance forward and backward.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 31, 2018
    Inventors: Tao JIANG, Yanwei XU, Shangmin SUN, Yu HU, Weifeng YU, Xuejing YANG, Youai YU, Ke LI, Defang MENG
  • Publication number: 20170184392
    Abstract: Embodiments of the invention disclose a vehicle guidance system, a method for orientating a vehicle, and an inspection vehicle. The vehicle guidance system includes at least two separate reference devices; a laser scanner device, configured to emit a laser beam signals and scan a sectorial region with the laser beam so as to measure a distance of a straight connection line for connecting the laser scanner device to any of the at least two separate reference devices, and an angle between the corresponding straight connection line and a vehicle body of the vehicle, or an angle between the straight connection lines; a processor, configured to process and store data, and to determine whether the orientation of the vehicle body in real time is deviating from an initial orientation of the vehicle body upon the system starts to operate or not, in accordance with the sensed results by the laser scanner device.
    Type: Application
    Filed: September 30, 2016
    Publication date: June 29, 2017
    Inventors: Yanwei XU, Defang MENG, Weifeng YU