Patents by Inventor Liming Zheng

Liming Zheng 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: 20240143000
    Abstract: A method is provided that includes: obtaining a first state information of the remote driving system, where the remote driving system is configured to perform remote control on a vehicle communicatively connected with the remote driving system; determining whether an abnormality occurs in the remote driving system based on the first state information; determining abnormality information of the remote driving system in response to the occurrence of the abnormality in the remote driving system; and adjusting a state of the remote control based on the abnormality information.
    Type: Application
    Filed: January 10, 2024
    Publication date: May 2, 2024
    Inventors: Yu TIAN, Qingrui SUN, Jingchao FENG, Pengjie ZHENG, Dengyu XIAO, Xiaoteng YUAN, Liming XIA
  • Publication number: 20240132530
    Abstract: Broadly applicable and stereoselective formation of glycosidic linkage remains challenging yet of critical importance in giycoscience. By developing an SN2 glycosylation, this work advances a general solution to this challenge via stereoinversion at the anomeric position of glycosyl ester donors. This SN2 process is enabled by a basic directing-group in the leaving-group, which is activated by a cationic gold catalyst or any other electrophilic reagent. Unlike all the reported directing group approaches, this strategy is applicable to any glycosyl donors—a long sought-after yet unmet goal in carbohydrate chemistry; moreover, the basic directing-group upon glycosylation is lost as part of the leaving-group and hence traceless in the glycoside products, therefore avoiding potential complications in downstream transformations. Highly selective construction of glycosidic bonds including challenging 1,2-cis glycosidic bonds is achieved in excellent yields.
    Type: Application
    Filed: January 28, 2022
    Publication date: April 25, 2024
    Applicant: The Regents of the University of California
    Inventors: Liming Zhang, Xu Ma, Zhitong Zheng
  • Patent number: 11767900
    Abstract: A servo includes: a servo body, an upper cover fixedly connected to the top of the servo body, a lower cover fixedly connected to the bottom of the servo body, and a direct-current motor, a motor gear and a gear set which are arranged between the servo body and the upper cover and in driving connection with one another in sequence. The servo further comprises a first part and a second part protruding from the first part, and the gear set comprises an output gear located at the second part.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: September 26, 2023
    Assignee: ROBOSEN ROBOTICS (SHENZHEN) CO., LTD.
    Inventors: Xiaosen Chen, Liming Zheng
  • Patent number: 11760641
    Abstract: A method for preparing suspended graphene support film by selectively etching growth substrate is disclosed in present invention. The transfer process of graphene is avoided. The process of present invention is efficient and low in cost, suspended graphene support film can be prepared in a single etching step. The prepared graphene support film does not need any support by polymer film and polymer fiber. The prepared graphene support film has controllable number of layers and high intactness (90%-97%), large suspended area (diameter is 10-50 ?m), wide clean area (>100 nm) and can be mass-produced. In addition, the graphene support film can be directly used as transmission electron microscope support film, and can be used to achieve high resolution imaging of nanoparticles.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: September 19, 2023
    Assignee: PEKING UNIVERSITY
    Inventors: Hailin Peng, Liming Zheng, Bing Deng
  • Publication number: 20230060468
    Abstract: A servo and a robot are provided. The servo comprises an upper cover, a middle cover, a lower cover, a direct-current motor, and a set of gears meshing with each other. The servo comprises a body, and a cylindrical structure having a cylindrical cavity. The servo is in the shape of a hinge as a whole. The direct-current motor is flat, and a side surface of a body of the direct-current motor is exposed outside the middle cover.
    Type: Application
    Filed: August 5, 2022
    Publication date: March 2, 2023
    Applicant: ROBOSEN ROBOTICS (SHENZHEN) CO., LTD.
    Inventors: Liming Zheng, Xiaosen Chen
  • Publication number: 20230055683
    Abstract: A servo and a robot are provided. The servo includes: a servo body, an upper cover fixedly connected to the top of the servo body, a lower cover fixedly connected to the bottom of the servo body, and a direct-current motor, a motor gear and a gear set which are arranged between the servo body and the upper cover and in driving connection with one another in sequence, wherein the servo comprises a first part and a second part protruding from the first part, and the gear set comprises an output gear located at the second part.
    Type: Application
    Filed: August 5, 2022
    Publication date: February 23, 2023
    Applicant: ROBOSEN ROBOTICS (SHENZHEN) CO., LTD.
    Inventors: Xiaosen Chen, Liming Zheng
  • Publication number: 20230055029
    Abstract: A servo and a robot with the same are provided. The servo comprises a servo body, an upper cover, a lower cover, and a gear set having a plurality of gears meshing with each other. The gear set is located in the servo body, and comprises an output gear located in the center of the servo body as seen from the cross section of the servo body.
    Type: Application
    Filed: August 5, 2022
    Publication date: February 23, 2023
    Applicant: ROBOSEN BOBOTICS (SHENZHEN) CO., LTD.
    Inventors: Xiaosen CHEN, Liming ZHENG
  • Publication number: 20210395092
    Abstract: A method for preparing suspended graphene support film by selectively etching growth substrate is disclosed in present invention. The transfer process of graphene is avoided. The process of present invention is efficient and low in cost, suspended graphene support film can be prepared in a single etching step. The prepared graphene support film does not need any support by polymer film and polymer fiber. The prepared graphene support film has controllable number of layers and high intactness (90%-97%), large suspended area (diameter is 10-50 ?m), wide clean area (>100 nm) and can be mass-produced. In addition, the graphene support film can be directly used as transmission electron microscope support film, and can be used to achieve high resolution imaging of nanoparticles.
    Type: Application
    Filed: October 14, 2019
    Publication date: December 23, 2021
    Inventors: Hailin PENG, Liming ZHENG, Bing DENG
  • Patent number: 11146063
    Abstract: The wide application of power electronic components in power systems with renewable energy sources has changed the fault characteristics of conventional power systems, resulting in the performance degradation of conventional protections. To solve these problems, a novel principle of pilot protection based on structural similarity and square error criteria is provided. The structural similarity criterion utilizes the difference of fault characteristics between renewable sources and synchronous generators to identify internal faults, and the square error criterion is used to solve abnormal calculation of the conventional similarity based protection. Compared with conventional differential protections, the disclosed protection shows excellent performance in speed and reliability during various faults.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: October 12, 2021
    Assignee: North China Electric Power University
    Inventors: Ke Jia, Tianshu Bl, Liming Zheng
  • Patent number: 10985558
    Abstract: The wide application of power electronic components in power systems with renewable energy sources has changed the fault characteristics of conventional power systems, resulting in the performance degradation of conventional protections. To solve these problems, a novel principle of pilot protection based on structural similarity and square error criteria is provided. The structural similarity criterion utilizes the difference of fault characteristics between renewable sources and synchronous generators to identify internal faults, and the square error criterion is used to solve abnormal calculation of the conventional similarity based protection. Compared with conventional differential protections, the disclosed protection shows excellent performance in speed and reliability during various faults.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: April 20, 2021
    Assignee: North China Electric Power University
    Inventors: Ke Jia, Tianshu Bi, Liming Zheng
  • Patent number: 10614323
    Abstract: A scene analysis method is applied to a visual navigation device. The scene analysis method includes the steps of capturing scene information at different times based upon the field of view of an image capturing device; analyzing different targets existing in the captured scene information; comparing each one of the targets captured at different times to classify the target, wherein the target that is in a specific region in the field of view and moving toward the image capturing device is classified as a type A target; otherwise the target is classified as a type B target. When the visual navigation is installed on a vehicle, a protection procedure such as a procedure of avoiding an obstacle is initiated when a type A target is detected, so that the vehicle is automatically prevented from potential accidents.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: April 7, 2020
    Assignee: Nanjing Yuanjue Information and Technology Company
    Inventors: Liming Zheng, Tao Yu, Bingbing Cui
  • Patent number: 10352873
    Abstract: An industrial visual stethoscope system and a detecting method are provided. The system has a base, a workpiece support, a single-color lighting device, a camera module, a rotating device, and an analyzing device. When the single-color light irradiates the workpiece, if the single-color light irradiates into the crack which is relatively deep and narrow, the single-color light is rarely to be reflected out of the crack. But if the single-color light irradiates into the scar, the single-color light is reflected out of the scar due to the specular reflection. During the relative rotation, when the reflected light enters the camera module in parallel, the energy of the light is concentrated, causing overexposure and forming obvious white light. Thus, the analyzing device can identify the recess is a scar formed by hit rather than a crack formed by heat.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: July 16, 2019
    Assignee: Nanjing Yuanjue Information and Technology Company
    Inventors: Liming Zheng, Zheng Zhang, Tao Yu
  • Publication number: 20190014239
    Abstract: A scene analyzing method includes the steps of: receiving captured scene information; analyzing different targets in the scene information to obtain characteristic information of each of the targets; and sending the obtained characteristic information to an external device or correlating the characteristic information to the scene information and storing it to a storage device in order to retrieve the scene information corresponding to the characteristic information stored in the storage device. The scene information corresponding to the characteristic information is searchable to extract a specific target when the scene analyzing method is used for monitoring applications. This reduces human costs and increases efficiency in monitoring information.
    Type: Application
    Filed: November 1, 2017
    Publication date: January 10, 2019
    Applicant: Nanjing Yuanjue Information and Technology Company
    Inventors: LIMING ZHENG, Tao Yu, Bingbing Cui
  • Publication number: 20190012549
    Abstract: A scene analysis method is applied to a visual navigation device. The scene analysis method includes the steps of capturing scene information at different times based upon the field of view of an image capturing device; analyzing different targets existing in the captured scene information; comparing each one of the targets captured at different times to classify the target, wherein the target that is in a specific region in the field of view and moving toward the image capturing device is classified as a type A target; otherwise the target is classified as a type B target. When the visual navigation is installed on a vehicle, a protection procedure such as a procedure of avoiding an obstacle is initiated when a type A target is detected, so that the vehicle is automatically prevented from potential accidents.
    Type: Application
    Filed: October 31, 2017
    Publication date: January 10, 2019
    Applicant: Nanjing Yuanjue Information and Technology Company
    Inventors: LIMING ZHENG, Tao Yu, Bingbing Cui
  • Publication number: 20180335392
    Abstract: An industrial visual stethoscope system and a detecting method are provided. The system has a base, a workpiece support, a single-color lighting device, a camera module, a rotating device, and an analyzing device. When the single-color light irradiates the workpiece, if the single-color light irradiates into the crack which is relatively deep and narrow, the single-color light is rarely to be reflected out of the crack. But if the single-color light irradiates into the scar, the single-color light is reflected out of the scar due to the specular reflection. During the relative rotation, when the reflected light enters the camera module in parallel, the energy of the light is concentrated, causing overexposure and forming obvious white light. Thus, the analyzing device can identify the recess is a scar formed by hit rather than a crack formed by heat.
    Type: Application
    Filed: November 1, 2017
    Publication date: November 22, 2018
    Applicant: Nanjing Yuanjue Information and Technology Company
    Inventors: LIMING ZHENG, ZHENG ZHANG, TAO YU
  • Publication number: 20180318155
    Abstract: A bendable transferring bed has a bed frame, multiple bed-panel units, and at least one coupling. Each two adjacent ones of the bed-panel units are pivotally connected to each other. Each bed-panel units has a moveable bed-panel and a transmission shaft. The moveable bed-panel is moved relative to the mounting frame through the rotating of the transmission shaft. The two transmission shafts of each two adjacent ones of the bed-panel units are connected by one of the couplings, and thus the moveable bed-panels of all the bed-panel units can be moved together. The moveable bed-panels of the bed-panel units are bendable relative to each other to keep the patient in a sitting position or other positions. The moveable bed-panels can be moved when the moveable bed-panels are bent relative to each other by the coupling, such that the patient can be moved when in the sitting position.
    Type: Application
    Filed: November 1, 2017
    Publication date: November 8, 2018
    Applicants: Jinling Institute of Technology, Nanjing Kangni Precision Mechanics Co., Ltd
    Inventors: LIMING ZHENG, BIN XIE, XIAOHU CHEN, HAIWEI ZHANG, MINGMING ZHANG, YU GUO, YUNHUI CHEN
  • Publication number: 20180207793
    Abstract: A crawling device is used for surrounding a cylinder and crawling along the extension direction of the mentioned cylinder. The kind of crawling device may include at least two-nodes crawling modules, a telescopic mechanism, and a control circuit. The telescopic mechanism connects with two-nodes crawling modules, and the crawling modules have an elastic mechanism and a drawstring respectively. In creeping movement, the at least two-nodes crawling modules are set in turn that one crawling module as a fixed section and the other crawling module as a mobile section. When the crawling module is set as a fixed section, the crawling module adjusts the drawstring through the elastic mechanism to make the fixed section close to the cylinder. Producing friction by keeping close to the cylinder let the fixed section maintain the fixed state relatively close to the cylinder.
    Type: Application
    Filed: November 23, 2017
    Publication date: July 26, 2018
    Applicant: Nanjing Yuanjue Information and Technology Company
    Inventors: LIMING ZHENG, ZHENG ZHANG, TAO YU
  • Patent number: 9805293
    Abstract: A method is provided for recognition of a sky portion, a vertical object portion and a ground portion in an image. The image into a plurality of pixel sets by the electronic system. Expected values of each pixel sets with a sky distribution function, a vertical object distribution function and a ground distribution function by the electronic system are calculated and compared for each pixel set for determine each pixel set belonging to one of the sky portion, the vertical object portion or the ground portion.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: October 31, 2017
    Assignee: NANJING YUANJUE INFORMATION AND TECHNOLOGY
    Inventors: Liming Zheng, Bingbing Cui
  • Patent number: 9626598
    Abstract: A method is provided for recognition of a ceiling portion, a vertical object portion and a ground portion in an image of indoor scene executed in an electronic system. The image is divided into a plurality of pixel sets. Expected values of each pixel sets with a ceiling distribution function, a vertical object distribution function and a ground distribution function are calculated. The expected values of each pixel set in the ceiling distribution function, the vertical object distribution function and the ground distribution function are compared to determine whether each pixel set belongs to a ceiling object, a vertical object or a ground object.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: April 18, 2017
    Assignee: NANJING YUANJUE INFORMATION AND TECHNOLOGY
    Inventors: Liming Zheng, Bingbing Cui
  • Patent number: 9471853
    Abstract: A method is provided for classifying pixels in an image into super pixels that may be executed in one or more than one electronic devices. Seed pixels are pixels selected from the image. Color distances of a color space similar to human vision perception between the seed pixels and proximal pixels are calculated. The proximal pixels are pixels located proximally to corresponding seed pixels. Geographic distances are also computed for two pixels and the geographic distances are combined with the color distances as a reference for classifying pixels into super pixels.
    Type: Grant
    Filed: April 12, 2015
    Date of Patent: October 18, 2016
    Assignee: Jinling Institute of Technology
    Inventors: Liming Zheng, Bingbing Cui