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).
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Publication number: 20240345879Abstract: This application discloses a task processing method. The method is applied to a computer system, and the computer system includes a user mode and a kernel mode. The user mode includes a plurality of tasks, and the tasks are threads or processes. The method includes: detecting, in the kernel mode, a type of a first request of entering a kernel entry; when the type of the first request indicates that a first task is suspended in the user mode, switching at least from a user-mode context of the first task to a user-mode context of a second task, recording a suspended state of the first task and a running time from a moment of starting to run the first task to a moment of suspending the first task, and skipping processing other scheduling statuses of the first task; and running the second task in the user mode.Type: ApplicationFiled: June 24, 2024Publication date: October 17, 2024Inventors: Xin CHEN, Zhihui GAO, Yongliang GAO, Liming ZHENG, Cheng LIN, Mingyue ZHAO, Lei DAI, Xiuchang LI
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Patent number: 11976709Abstract: 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: GrantFiled: August 5, 2022Date of Patent: May 7, 2024Assignee: ROBOSEN ROBOTICS (SHENZHEN) CO., LTD.Inventors: Xiaosen Chen, Liming Zheng
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Patent number: 11767900Abstract: 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: GrantFiled: August 5, 2022Date of Patent: September 26, 2023Assignee: ROBOSEN ROBOTICS (SHENZHEN) CO., LTD.Inventors: Xiaosen Chen, Liming Zheng
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Patent number: 11760641Abstract: 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: GrantFiled: October 14, 2019Date of Patent: September 19, 2023Assignee: PEKING UNIVERSITYInventors: Hailin Peng, Liming Zheng, Bing Deng
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Publication number: 20230060468Abstract: 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: ApplicationFiled: August 5, 2022Publication date: March 2, 2023Applicant: ROBOSEN ROBOTICS (SHENZHEN) CO., LTD.Inventors: Liming Zheng, Xiaosen Chen
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Publication number: 20230055683Abstract: 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: ApplicationFiled: August 5, 2022Publication date: February 23, 2023Applicant: ROBOSEN ROBOTICS (SHENZHEN) CO., LTD.Inventors: Xiaosen Chen, Liming Zheng
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Publication number: 20230055029Abstract: 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: ApplicationFiled: August 5, 2022Publication date: February 23, 2023Applicant: ROBOSEN BOBOTICS (SHENZHEN) CO., LTD.Inventors: Xiaosen CHEN, Liming ZHENG
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Publication number: 20210395092Abstract: 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: ApplicationFiled: October 14, 2019Publication date: December 23, 2021Inventors: Hailin PENG, Liming ZHENG, Bing DENG
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Patent number: 11146063Abstract: 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: GrantFiled: March 15, 2021Date of Patent: October 12, 2021Assignee: North China Electric Power UniversityInventors: Ke Jia, Tianshu Bl, Liming Zheng
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Structural similarity based pilot protection method and system for renewable power transmission line
Patent number: 10985558Abstract: 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: GrantFiled: August 24, 2020Date of Patent: April 20, 2021Assignee: North China Electric Power UniversityInventors: Ke Jia, Tianshu Bi, Liming Zheng -
Patent number: 10614323Abstract: 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: GrantFiled: October 31, 2017Date of Patent: April 7, 2020Assignee: Nanjing Yuanjue Information and Technology CompanyInventors: Liming Zheng, Tao Yu, Bingbing Cui
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Patent number: 10352873Abstract: 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: GrantFiled: November 1, 2017Date of Patent: July 16, 2019Assignee: Nanjing Yuanjue Information and Technology CompanyInventors: Liming Zheng, Zheng Zhang, Tao Yu
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Patent number: 9805293Abstract: 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: GrantFiled: April 13, 2015Date of Patent: October 31, 2017Assignee: NANJING YUANJUE INFORMATION AND TECHNOLOGYInventors: Liming Zheng, Bingbing Cui
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Patent number: 9626598Abstract: 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: GrantFiled: April 13, 2015Date of Patent: April 18, 2017Assignee: NANJING YUANJUE INFORMATION AND TECHNOLOGYInventors: Liming Zheng, Bingbing Cui
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Patent number: 9471853Abstract: 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: GrantFiled: April 12, 2015Date of Patent: October 18, 2016Assignee: Jinling Institute of TechnologyInventors: Liming Zheng, Bingbing Cui
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Patent number: 9390348Abstract: Texture features of images are calculated for recognition of pixel sets in the images as one category among multiple candidate categories. For example, wavelet transformation is applied to obtain a wavelet vector. Via analyzing components of the wavelet vector, one pixel set may be recognized as part of an architecture object or a natural plant object. In addition, line segments within the pixel sets may be calculated and their statistics result may be used for recognizing different objects.Type: GrantFiled: April 12, 2015Date of Patent: July 12, 2016Assignee: Jinling Institute of TechnologyInventors: Liming Zheng, Bingbing Cui
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Publication number: 20150332122Abstract: 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: ApplicationFiled: April 13, 2015Publication date: November 19, 2015Applicant: Jinling Institute of TechnologyInventors: Liming Zheng, Bingbing Cui
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Publication number: 20150332112Abstract: 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: ApplicationFiled: April 13, 2015Publication date: November 19, 2015Applicant: JINLING INSTITUTE OF TECHNOLOGYInventors: Liming Zheng, Bingbing Cui
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Publication number: 20150332127Abstract: 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: ApplicationFiled: April 12, 2015Publication date: November 19, 2015Applicant: JINLING INSTITUTE OF TECHNOLOGYInventors: Liming Zheng, Bingbing Cui
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Publication number: 20150332121Abstract: Texture features of images are calculated for recognition of pixel sets in the images as one category among multiple candidate categories. For example, wavelet transformation is applied to obtain a wavelet vector. Via analyzing components of the wavelet vector, one pixel set may be recognized as part of an architecture object or a natural plant object. In addition, line segments within the pixel sets may be calculated and their statistics result may be used for recognizing different objects.Type: ApplicationFiled: April 12, 2015Publication date: November 19, 2015Applicant: Jinling Institute of TechnologyInventors: Liming Zheng, Bingbing Cui