Patents by Inventor Ran ZHENG

Ran 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: 20250217316
    Abstract: The present disclosure provides an acquisition method and apparatus for attribute information of a directory of a distributed file system, and a device, and relates to the field of computer technologies and, in particular, to the field of big data and a distributed file system. The specific implementation is as follows: when an acquisition instruction is acquired, judging whether a log index of a directory indicated by the acquisition instruction is less than a transaction index of the directory, and whether a queue index of the directory is greater than or equal to the transaction index; if both of the above conditions are met, reading attribute modification information of a directory from a memory queue; and determining the attribute information of the current directory according to the attribute modification information and an attribute file of the directory.
    Type: Application
    Filed: March 19, 2025
    Publication date: July 3, 2025
    Inventors: Biao CAO, Jielong JIAN, Qiushi CHEN, Liguo DUAN, Ran ZHENG
  • Publication number: 20250217180
    Abstract: Provided is a method for controlling a virtual machine, an electronic device and a storage medium, relating to the field of computer technology, and in particular to application fields of cloud service, cloud computing and big data processing. The method includes: obtaining a virtual machine control request; generating a control operation instruction for a target virtual machine based on the virtual machine control request by using a computing node service deployed on the smart card; and sending the control operation instruction to a virtualization control program deployed on the physical machine; where the virtualization control program is used to perform a control operation on the target virtual machine based on the control operation instruction.
    Type: Application
    Filed: March 19, 2025
    Publication date: July 3, 2025
    Inventors: Kezhan Miao, Zhaoxin Li, Ru Ying, Ran Zheng, Xianjun Meng
  • Publication number: 20250217319
    Abstract: The present disclosure provides a method for processing directory metadata in a distributed file system, an apparatus and a device, which are related to the field of computer technologies, in particular to the field of big data and distributed file systems. The specific solution is as follows: when a processing request is acquired, a first index shard corresponding to directory metadata indicated by the processing request may be determined according to the processing request; the first index shard may be loaded, and a metadata shard corresponding to the directory metadata indicated by the processing request is determined according to the first index shard. Information in the determined metadata shard is adjusted. A second index shard related to the directory metadata indicated by the processing request is determined according to the processing request, and index information corresponding to the directory metadata in the second index shard is adjusted.
    Type: Application
    Filed: March 20, 2025
    Publication date: July 3, 2025
    Inventors: Biao CAO, Qiushi CHEN, Jielong JIAN, Liguo DUAN, Ran ZHENG
  • Publication number: 20240367823
    Abstract: A variable-stroke self-adaptive adjustment quasi-zero stiffness device includes an integrating sphere, a target, a collimator, a pointing measuring instrument, a disturbance source, an inertia simulation tooling, a quasi-zero stiffness suspension adjustment device and an optical air-bearing platform. The integrating sphere, the target and the collimator are coaxially mounted on the optical air-bearing platform in sequence. The pointing measuring instrument is connected and fixed with the inertia simulation tooling through a screw; three disturbance sources are mounted on the inertia simulation tooling to provide small disturbance and inertia for the pointing measuring instrument; the quasi-zero stiffness suspension adjustment device suspends the inertia simulation tooling to provide a free boundary environment; and the quasi-zero stiffness suspension adjustment device, the pointing measuring instrument, the disturbance source and the inertia simulation tooling form a set of two-pendulum system as a whole.
    Type: Application
    Filed: August 16, 2022
    Publication date: November 7, 2024
    Inventors: Li Yuan, Li Wang, Lin Li, Yanpeng Wu, Jun Zhong, Qin Zhao, Ran Zheng, Jingya Qi, Chengyu Zhang
  • Patent number: 12085474
    Abstract: A device and a method for determining a microvibration effect on a millisecond-level space optical sensor are provided. The device includes: a light source, a star simulator, an air flotation vibration isolation platform, a suspension system/air flotation system, a zero stiffness system, a supporting system, a six-degree-of-freedom microvibration simulator, a signal driving apparatus, and a data acquisition and processing system. In the device for determining a microvibration effect on a space pointing measurement apparatus, a free boundary condition and a zero gravity environment are simulated by using a suspension system and a zero stiffness system. A light source and a star simulator simulate a star at infinity. A six-degree-of-freedom microvibration simulator simulates an on-orbit microvibration mechanical environment which is used as an input of a test. Extremely high-precision sensors collect system response data.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: September 10, 2024
    Assignee: BEIJING INSTITUTE OF CONTROL ENGINEERING
    Inventors: Li Yuan, Li Wang, Lin Li, Ran Zheng, Yanpeng Wu, Jun Zhong, Jie Sui, Yuming Li, Miaomiao Wang, Huiyan Cheng, Xiaoyan Wang
  • Publication number: 20240269487
    Abstract: A system and method of gamma radiation convergence for the treatment of intracranial tumors. The system is comprised of a hexapod or six degree of freedom parallel robotic system to move a radiation head with respect to a rotating gantry.
    Type: Application
    Filed: February 14, 2024
    Publication date: August 15, 2024
    Applicant: Spinotron Kft
    Inventors: Donald Medlin, Xiao Ran Zheng, Jad Saud
  • Publication number: 20240016687
    Abstract: A modular multi-robotic manipulator system for multi-purpose image-guided surgical and diagnostic applications combining multiple open-chain and closed-chain robotic subsystems.
    Type: Application
    Filed: September 26, 2023
    Publication date: January 18, 2024
    Applicant: Spinotron Magyar Sugársebészeti Innováció Korlátolt Felelosségu Társaság
    Inventors: Xiao Ran Zheng, Donald Medlin, Jad Saud
  • Publication number: 20230175921
    Abstract: A device and a method for determining a microvibration effect on a millisecond-level space optical sensor are provided. The device includes: a light source, a star simulator, an air flotation vibration isolation platform, a suspension system/air flotation system, a zero stiffness system, a supporting system, a six-degree-of-freedom microvibration simulator, a signal driving apparatus, and a data acquisition and processing system. In the device for determining a microvibration effect on a space pointing measurement apparatus, a free boundary condition and a zero gravity environment are simulated by using a suspension system and a zero stiffness system. A light source and a star simulator simulate a star at infinity. A six-degree-of-freedom microvibration simulator simulates an on-orbit microvibration mechanical environment which is used as an input of a test. Extremely high-precision sensors collect system response data.
    Type: Application
    Filed: June 24, 2021
    Publication date: June 8, 2023
    Applicant: BEIJING INSTITUTE OF CONTROL ENGINEERING
    Inventors: Li YUAN, Li WANG, Lin LI, Ran ZHENG, Yanpeng WU, Jun ZHONG, Jie SUI, Yuming LI, Miaomiao WANG, Huiyan CHENG, Xiaoyan WANG
  • Patent number: 11624007
    Abstract: Photocurable adhesion-promoting compositions containing organic titanates and/or organic zirconates and partially reacted alkoxysilanes and the use of the photocurable adhesion-promoting compositions to provide adhesion between metal substrates and an overlying radiation-cured sealant are disclosed.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: April 11, 2023
    Assignee: PRC-DESOTO INTERNATIONAL, INC.
    Inventors: JianCheng Liu, Chu Ran Zheng, Millie Chang, Nagarajan Srivatsan
  • Publication number: 20230059160
    Abstract: Photocurable adhesion-promoting compositions containing organic titanates and/or organic zirconates and partially reacted alkoxysilanes and the use of the photocurable adhesion-promoting compositions to provide adhesion between metal substrates and an overlying radiation-cured sealant are disclosed.
    Type: Application
    Filed: January 29, 2021
    Publication date: February 23, 2023
    Applicant: PRC-Desoto International, Inc.
    Inventors: Jiancheng Liu, Chu Ran Zheng, Millie Chang, Nagarajan Srivatsan
  • Publication number: 20210402748
    Abstract: Adhesion-promoting compositions and the use of the adhesion-promoting compositions to provide adhesion-promoting interlayers to enhance adhesion between adjoining layers of sulfur-containing sealants are disclosed. In repair applications, the adhesion-promoting compositions can enhance the adhesion of an overlying radiation-curable sulfur-containing sealant to a damaged or aged sulfur-containing sealant.
    Type: Application
    Filed: September 8, 2021
    Publication date: December 30, 2021
    Inventors: JianCheng Liu, Chu Ran Zheng, Kevin Cheng, Bruce Virnelson
  • Patent number: 11173692
    Abstract: Adhesion-promoting compositions and the use of the adhesion-promoting compositions to provide adhesion-promoting interlayers to enhance adhesion between adjoining layers of sulfur-containing sealants are disclosed. In repair applications, the adhesion-promoting compositions can enhance the adhesion of an overlying radiation-curable sulfur-containing sealant to a damaged or aged sulfur-containing sealant.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: November 16, 2021
    Assignee: PRC-DeSoto International, Inc.
    Inventors: JianCheng Liu, Chu Ran Zheng, Kevin Cheng, Bruce Virnelson
  • Publication number: 20210230457
    Abstract: Photocurable adhesion-promoting compositions containing organic titanates and/or organic zirconates and partially reacted alkoxysilanes and the use of the photocurable adhesion-promoting compositions to provide adhesion between metal substrates and an overlying radiation-cured sealant are disclosed.
    Type: Application
    Filed: January 29, 2020
    Publication date: July 29, 2021
    Applicant: PRC-DeSoto International, Inc.
    Inventors: JianCheng Liu, Chu Ran Zheng, Millie Chang, Nagarajan Srivatsan
  • Publication number: 20210198496
    Abstract: Partially reacted alkoxysilane compositions, the use of partially reacted alkoxysilane compositions as adhesion-promoting primer coatings, and methods of using the partially reacted alkoxysilane compositions and coatings are disclosed.
    Type: Application
    Filed: March 15, 2021
    Publication date: July 1, 2021
    Inventors: SRIKANT PATHAK, CHU RAN ZHENG, BRUCE VIRNELSON
  • Publication number: 20210187922
    Abstract: Adhesion-promoting compositions and the use of the adhesion-promoting compositions to provide adhesion-promoting interlayers to enhance adhesion between adjoining layers of sulfur-containing sealants are disclosed. In repair applications, the adhesion-promoting compositions can enhance the adhesion of an overlying radiation-curable sulfur-containing sealant to a damaged or aged sulfur-containing sealant.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 24, 2021
    Applicant: PRC-DeSoto International, Inc.
    Inventors: JianCheng Liu, Chu Ran Zheng, Kevin Cheng, Bruce Virnelson
  • Publication number: 20210005339
    Abstract: Radiation delivery devices are described herein having compact and lightweight design in comparison to existing architectures. A radiation delivery device comprises a source body including a plurality of radiation sources and a collimator component for directing radiation from the radiation sources to a common focal area, wherein the radiation sources are arranged within the collimator component. In some embodiments, for example, the source body is positioned within an interior cavity of the collimator component.
    Type: Application
    Filed: July 20, 2020
    Publication date: January 7, 2021
    Inventors: Xiao Ran ZHENG, Endre TAKACS, Mark LEISING
  • Patent number: 10720255
    Abstract: Radiation delivery devices are described herein having compact and lightweight design in comparison to existing architectures. A radiation delivery device comprises a source body including a plurality of radiation sources and a collimator component for directing radiation from the radiation sources to a common focal area, wherein the radiation sources are arranged within the collimator component. In some embodiments, for example, the source body is positioned within an interior cavity of the collimator component.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: July 21, 2020
    Assignee: Clemson University
    Inventors: Xiao Ran Zheng, Endre Takacs, Mark Leising
  • Publication number: 20190146317
    Abstract: A wavelength conversion device is provided that includes: light-transmissive substrate that includes an incidence surface and an emission surface opposite the incidence surface, and emits, from the emission surface, laser light that enters the incidence surface; a phosphor layer that emits fluorescent light when excited by the laser light emitted from the emission surface; and a light diffuser layer between the emission surface and the phosphor layer. The light diffuser layer is, when viewed in a direction perpendicular to the emission surface, disposed only in a portion of a region in which the phosphor layer is disposed.
    Type: Application
    Filed: November 7, 2018
    Publication date: May 16, 2019
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kenta WATANABE, Toshio MORI, Hiroshi ASANO, Yosuke HONDA, Ran ZHENG, Sachiko AZUMA
  • Patent number: 10146115
    Abstract: A wavelength converter includes, in sequence, a substrate, a reflective layer, and a phosphor layer. The phosphor layer contains a sealing layer and a phosphor dispersed in the sealing layer. The sealing layer is made of a hybrid material containing a glass component and a resin component.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: December 4, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Toshio Mori, Ran Zheng
  • Patent number: 10134958
    Abstract: A phosphor layer contains phosphor particles, and satisfies the following relations: y?0.0623x2+0.2107x+28.789 and y??0.1172x2+7.584x+81.148 where x represents the average particle size (?m) of the phosphor particles, and y represents the thickness (?m) of the phosphor layer.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: November 20, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Ran Zheng, Toshio Mori