Patents by Inventor Yucheng Zhao

Yucheng Zhao 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: 12188889
    Abstract: A test system and test method continuously and intelligently measures water content of subgrade in real time. The test system is based on the theory of resistivity, and is equipped with a wheeled machine to measure the water content of subgrade. The wheeled machine includes scroll roller. The test system includes: at least one set of electrode including four probes wherein detection parts of the four probes are linearly and equidistantly arranged on the scroll roller. The arrangement direction of the detection parts of the four probes is parallel to the axis of the scroll roller; a data integration apparatus is connected to the four probes and used for performing data calculation, analysis, and transmission; the electric source is connected to data integration apparatus and used for supplying a working current. The system and method can realize automatic signal collection, non-destructive detection of subgrade soil and dynamic water content measurement.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: January 7, 2025
    Assignee: SHIJIAZHUANG TIEDAO UNIVERSITY
    Inventors: Huaiping Feng, Hui Zhao, Deliang Ma, Jianmei Chang, Bing Duan, Chaoliang Ye, Yucheng Zhao
  • Publication number: 20240422880
    Abstract: Provided are a backlight control method and system, a display device and a readable storage medium. The backlight control method includes: obtaining a backlight control signal, where the backlight control signal includes a mode signal and a data signal (21); obtaining the mode signal in the backlight control signal, where the mode signal includes a phase adjustment signal or a local dimming signal (22); in response to that the mode signal is the phase adjustment signal, writing the data signal corresponding to the mode signal into a light source drive module, such that the light source drive module adjusts a phase of a backlight source based on the data signal (23). By adding the phase adjustment signal to the backlight control signal, a backlight refresh phase may be directly adjusted by a front end device, without adding hardware, bringing conveniences and speediness.
    Type: Application
    Filed: March 25, 2022
    Publication date: December 19, 2024
    Inventors: Jianzi HE, Shou LI, Naijia GUO, Zhiming MENG, Junning SU, He CHAO, Yucheng ZHAO, Minghan LI
  • Publication number: 20220341862
    Abstract: A test system and test method continuously and intelligently measures water content of subgrade in real time. The test system is based on the theory of resistivity, and is equipped with a wheeled machine to measure the water content of subgrade. The wheeled machine includes scroll roller. The test system includes: at least one set of electrode including four probes wherein detection parts of the four probes are linearly and equidistantly arranged on the scroll roller. The arrangement direction of the detection parts of the four probes is parallel to the axis of the scroll roller; a data integration apparatus is connected to the four probes and used for performing data calculation, analysis, and transmission; the electric source is connected to data integration apparatus and used for supplying a working current. The system and method can realize automatic signal collection, non-destructive detection of subgrade soil and dynamic water content measurement.
    Type: Application
    Filed: November 13, 2019
    Publication date: October 27, 2022
    Applicant: SHIJIAZHUANG TIEDAO UNIVERSITY
    Inventors: Huaiping FENG, Deliang MA, Jianmei CHANG, Bing DUAN, Hui ZHAO, Chaoliang YE, Yucheng ZHAO
  • Patent number: 8014428
    Abstract: The present disclosure provides in a first aspect a mode-locked laser for generating laser pulses. The mode-locked laser comprises an optical coupler and a first optical path capable of carrying optical signals from and to the optical coupler. The first optical path includes an optical amplifier that is arranged so that saturation of optical amplification causes amplitude modulation of the light. The optical amplifier has a saturation time that is shorter than a pulse transition period of the mode-locked laser and is arranged for recovery of amplifying properties after the saturation within a period of time that is shorter than the pulse transition period of the mode-locked laser. The laser further comprises a second optical path capable of carrying optical signals from and to the optical coupler. The second optical path includes an optical isolator.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: September 6, 2011
    Assignee: University of Sydney
    Inventors: Simon Fleming, Seong-Sik Min, Yucheng Zhao
  • Publication number: 20100172380
    Abstract: The present disclosure provides in a first aspect a mode-locked laser for generating laser pulses. The mode-locked laser comprises an optical coupler and a first optical path capable of carrying optical signals from and to the optical coupler. The first optical path includes an optical amplifier that is arranged so that saturation of optical amplification causes amplitude modulation of the light. The optical amplifier has a saturation time that is shorter than a pulse transition period of the mode-locked laser and is arranged for recovery of amplifying properties after the saturation within a period of time that is shorter than the pulse transition period of the mode-locked laser. The laser further comprises a second optical path capable of carrying optical signals from and to the optical coupler. The second optical path includes an optical isolator.
    Type: Application
    Filed: May 30, 2008
    Publication date: July 8, 2010
    Applicant: UNIVERSITY OF SYDNEY
    Inventors: Simon Fleming, Seong-Sik Min, Yucheng Zhao