Patents by Inventor Cheng DONG

Cheng DONG 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: 11607770
    Abstract: An efficient ultra-precise shear thickening and chemical synergy polishing method, comprising the following steps: 1) fixing workpieces (3) to a polishing and fixing disc (31) of implementation equipment; 2) preparing an efficient ultra-precise shear thickening and chemical synergy polishing slurry, the polishing slurry comprising polishing abrasive particles or micro-powder, a shear thickening enhanced phase, water and green chemistry environmentally-friendly substances; 3) adding the prepared polishing slurry into a dust-prevention cover (30), and starting a polishing slurry circulating device, so that the polishing slurry is supplied to the surfaces of the workpieces (3) by means of polishing tools (1); and 4) starting driving devices (9) and driving mechanisms (33), so that the polishing tools (1) move relative to the workpieces (3), and surfaces of the workpieces (3) to be machined are polished.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: March 21, 2023
    Assignee: HUNAN UNIVERSITY OF SCIENCE & TECHNOLOGY
    Inventors: Min Li, Cheng Tang, Ting Dong, Zhenrong Huang
  • Patent number: 11592429
    Abstract: The present disclosure provides an open-air circulating pool for simulating ecological damage, and belongs to the technical field of simulation tests of ecological environment impact. The open-air circulating pool is provided with a set of devices for simulating natural ecological environments of different water quality and sediments, as well as changes in water bodies caused by a sea occupation project, discharge of a typical pollution source and a sudden leakage accident, so as to observe changing trends of an aquatic organism and an environmental element, and qualitatively and quantitatively determine a law of causality of damage. The set of devices includes an open-air wave-flow circulating pool, an additive injection apparatus and an ecological indicator sampling and detection apparatus.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: February 28, 2023
    Assignee: China Waterborne Transport Research Institute
    Inventors: Bing Qiao, Junya Duan, Bofan Yu, Tao Li, Mingbo Chen, Shan Hong, Sitang Hu, Ruiting Zhang, Cheng Dong
  • Publication number: 20230058188
    Abstract: Disclosed is a transient-state THz spectrometer applied to cells and biological macromolecules, including a femtosecond laser amplifier. A femtosecond laser output by the femtosecond laser amplifier is divided into two beams of pump light and probe light after passing through a beam splitter of which a transmission-reflection ratio is 7:3, the pump light is focused to irradiate a gap between electrodes of a nonlinear photoconductive antenna and emit a terahertz wave after successively passing through a half wave plate, a silver-plated reflector and a first lens, the terahertz wave forms a terahertz wave collineation after successively passing through a second lens, a slab waveguide, a third lens and an ITO film, the terahertz wave collineation and the probe light form a probe light collineation of wavefront tilt which is perpendicularly incident on a ZnTe crystal and detected and recorded by using a CCD camera.
    Type: Application
    Filed: January 13, 2021
    Publication date: February 23, 2023
    Inventors: Wei SHI, Lei HOU, Cheng MA, Chengang DONG, Lei YANG, Jiaguang HAN, Yanfeng LI, Chunmei OUYANG, Jianqiang GU, Liguo ZHU, Zhaohui ZHAI, Lianghui DU, Yi ZOU
  • Patent number: 11517904
    Abstract: Provided is a digital microfluidic device for quick polymerase chain reaction. The digital microfluidic device includes an enclosed chamber for holding droplets comprising PCR mixtures. The chamber has an upper layer and a lower layer, which provide a top heater and a bottom heater contained in a thermal electrode respectively to form dual heaters. The lower layer further has an array of electrodes and a dielectric layer, e.g. Norland Optical adhesive 61, coating thereon. Such arrangement of the digital microfluidic device allows quick and homogeneous heating of droplets to lower the heating voltage, shorten the reaction time, and prevent the dielectric layer from breakdown during the thermal cycle.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: December 6, 2022
    Assignee: University of Macau
    Inventors: Yanwei Jia, Liang Wan, Cheng Dong, Haoran Li, Tianlan Chen, Pui-In Mak, Rui Paulo da Silva Martins
  • Patent number: 11504434
    Abstract: In one aspect, methods of targeted nanoparticles and cell delivery are described herein. In some embodiments methods described herein comprise coupling nanoparticles and cells to a carrier cell to form a nanoparticle-cell conjugate or cell-cell conjugate, disposing the nanoparticle-cell or cell-cell conjugate in a biological environment, and delivering the nanoparticles and cells to target cells or tissues located within the biological environment. The nanoparticles comprise a biodegradable photoluminescent polymer, and the nanoparticle-cell conjugate is formed using one or more click chemistry reaction products.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: November 22, 2022
    Assignee: The Penn State Research Foundation
    Inventors: Jian Yang, Cheng Dong, Zhiwei Xie
  • Publication number: 20220294185
    Abstract: A vertical cavity surface emitting laser (VCSEL) device and a method for manufacturing the VCSEL device without wire bonding process for the topmost positive electrode are disclosed. The device includes epitaxial layer, ohmic contact layer, positive electrode, first insulating layer, conductive layer, and negative electrode. The epitaxial layer includes first and second opposing surfaces, and sidewalls connected to first and second surfaces. The ohmic contact layer is disposed on the first surface and the positive electrode connected thereto is disposed on the second surface. The first insulating layer is disposed on the second surface and extends to the ohmic contact layer along the sidewall. The conductive layer is disposed on the first insulating layer corresponding to the sidewall/sidewalls which carry power for the positive electrode.
    Type: Application
    Filed: March 8, 2022
    Publication date: September 15, 2022
    Inventor: CHENG-DONG WANG
  • Patent number: 11418790
    Abstract: Techniques are described of hybrid coders that are configured to selectively use adaptive or non-adaptive coding techniques. A video coder (e.g., video encoder or video decoder) may code (e.g., encode or decode) first video data (e.g., a syntax element or value), for coding a first block, based on an adaptive context model (e.g., one or more adaptive context models) and code second video data, for coding a second block, based on a non-adaptive context model (e.g., one or more non-adaptive context models).
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: August 16, 2022
    Assignee: Qualcomm Incorporated
    Inventors: Amir Said, Cheng-Teh Hsieh, Jie Dong
  • Patent number: 11379320
    Abstract: A processor initiates a run of a target container in a distributed computing environment. A processor detects at least one error occurring during the initiation of the target container. A processor determines at least one fix image based on the at least one error. A processor performs an error recovery of the target container based on the at least one fix image. A processor runs, in response to successfully performing the error recovery of the target container, the target container in the distributed computing environment.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: July 5, 2022
    Assignee: International Business Machines Corporation
    Inventors: Ping Xiao, Xin Zhou, Cheng Cheng Dong, Yu Long Tong, Zhen Zhang
  • Publication number: 20220196700
    Abstract: A system for simultaneously and microscopically measuring vapor cell coating film energy transfer and relaxation characteristics at nanometer scales includes a space relaxation characteristic detection unit which includes a laser, an optical isolator, a spatial light filter, a reflector, a Glan-Taylor polarizer, a first quarter-wave plate, a spatial light modulator, a focusing lens, a second quarter-wave plate, a polarizing film, a PD detection unit, an I/V amplification unit, a data acquisition unit, a spectroscope and an optical chopper, an atomic force microscope detection unit for energy transfer micro-areas, a shielding cylinder, a coated alkali metal atomic vapor cell, a data processing unit and a magnetic field controlled coil.
    Type: Application
    Filed: December 9, 2021
    Publication date: June 23, 2022
    Inventors: Zongmin MA, Jun LIU, Jun TANG, Yunbo SHI, Xiaoming ZHANG, Hao GUO, Huanfei WEN, Cheng DONG, Jiuyan WEI
  • Publication number: 20220065837
    Abstract: The present disclosure provides an open-air circulating pool for simulating ecological damage, and belongs to the technical field of simulation tests of ecological environment impact. The open-air circulating pool is provided with a set of devices for simulating natural ecological environments of different water quality and sediments, as well as changes in water bodies caused by a sea occupation project, discharge of a typical pollution source and a sudden leakage accident, so as to observe changing trends of an aquatic organism and an environmental element, and qualitatively and quantitatively determine a law of causality of damage. The set of devices includes an open-air wave-flow circulating pool, an additive injection apparatus and an ecological indicator sampling and detection apparatus.
    Type: Application
    Filed: May 14, 2021
    Publication date: March 3, 2022
    Applicant: China Waterborne Transport Research Institute
    Inventors: Bing Qiao, Junya Duan, Bofan Yu, Tao Li, Mingbo Chen, Shan Hong, Sitang Hu, Ruiting Zhang, Cheng Dong
  • Publication number: 20220012137
    Abstract: A processor initiates a run of a target container in a distributed computing environment. A processor detects at least one error occurring during the initiation of the target container. A processor determines at least one fix image based on the at least one error. A processor performs an error recovery of the target container based on the at least one fix image. A processor runs, in response to successfully performing the error recovery of the target container, the target container in the distributed computing environment.
    Type: Application
    Filed: July 8, 2020
    Publication date: January 13, 2022
    Inventors: Ping Xiao, Xin Zhou, Cheng Cheng Dong, Yu Long Tong, Zhen Zhang
  • Publication number: 20210333531
    Abstract: A system of automatic adjustment of a laser reflection path, comprising a central processing device, a driving device, a four-quadrant photodetector, a driving arm, a micro cantilever, a sample, a sample placing table, a light reflector, a laser, a CCD equipped with an optical microscope, a vibration sensor, a signal processing circuit, a display device, a storage device, and a control device; a system of automatic adjustment of the laser reflection path is controlled by the control device, wherein a laser beam is emitted by the laser, an image collected by the CCD equipped with the optical microscope is processed by the central processing device to identify the micro cantilever, and then a driving arm is driven by a driving device to drive the micro cantilever to move to the center of a laser spot, during which vibration signals of the driving arm are also under monitoring.
    Type: Application
    Filed: April 21, 2021
    Publication date: October 28, 2021
    Inventors: Jun Liu, Zongmin Ma, Jun Xu, Jun Tang, Yunbo Shi, Huanfei Wen, Cheng Dong, Huiyun Wang
  • Publication number: 20210283270
    Abstract: In one aspect, methods of targeted nanoparticle and cell delivery are described herein. In some embodiments, methods described herein comprise coupling nanoparticles and cells to a carrier cell to form a nanoparticle-cell conjugate or cell-cell conjugate, disposing the nanoparticle-cell or cell-cell conjugate in a biological environment, and delivering the nanoparticles and cells to target cells or tissues located within the biological environment. The nanoparticles comprise a biodegradable photoluminescent polymer, and the nanoparticle-cell conjugate is formed using one or more click chemistry reaction products.
    Type: Application
    Filed: January 6, 2020
    Publication date: September 16, 2021
    Inventors: Jian YANG, Cheng DONG, Zhiwei XIE
  • Publication number: 20210157161
    Abstract: An optical sheet includes a substrate, a protective structure on a surface of the substrate, and an optical diffraction structure on a side of the substrate opposite to the surface. The substrate is made of a transparent material and defines a projection area and a non-projection area surrounding the projection area. The protective structure includes a metal circuit in the non-projection area and surrounding the projection area. The optical diffraction structure is configured to diffract light.
    Type: Application
    Filed: July 15, 2020
    Publication date: May 27, 2021
    Inventor: CHENG-DONG WANG
  • Publication number: 20210109905
    Abstract: A method, system and computer program product for processing metrics data with graph data context analysis. Graph data representing one or more devices or sensors is stored into a first database, and metrics data generated by the devices or sensors is stored in a second database. The metrics data is then applied to the graph data for the context analysis, wherein the context analysis reflects the relationships of the devices or sensors in the graph data to the metrics data generated by the devices or sensors. The graph data comprises nodes for representing the devices or sensors, edges for representing a topology of the devices or sensors, and properties for storing the metrics data associated with the nodes and edges; and the metrics data comprises time-series data that is logged by the devices and sensors.
    Type: Application
    Filed: October 14, 2019
    Publication date: April 15, 2021
    Inventors: Shao Rong IL Li, Cheng Luo, Lan Cao, Cheng Cheng Dong
  • Patent number: 10757248
    Abstract: An approach for recommending activating a safety feature on a mobile device in a vehicle. The approach includes collecting sound characteristics. Furthermore, determining if the mobile device is moving faster than a predetermined velocity and invoking grouping service on a server. The approach determines the number of the mobile device in the vehicle and determines which one of the one or more of the mobile devices belongs to the user operating the vehicle and activating a safe drive mode feature on the mobile device belonging to the user of the vehicle.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: August 25, 2020
    Assignee: International Business Machines Corporation
    Inventors: Jun Qian, Xinlin Wang, Cheng Luo, Lan Cao, Cheng Cheng Dong
  • Publication number: 20200254457
    Abstract: Provided is an apparatus, system and method for on-chip microfluids dispensing. The apparatus comprising a substrate; a plurality of first electrodes arranged one next to another on the substrate; a dielectric layer above and enclosing the plurality of first electrodes; and a second electrode on the substrate, wherein each of the plurality of first electrodes is in electric communication with a respective first driving signal input; wherein the second electrode is in electric communication with a second driving signal input; wherein the plurality of first electrodes define a continuous fluid path along a longitudinal direction for retaining microfluids, and wherein the second electrode is arranged within the continuous fluid path and defines a jetting position and an adjacent mixing position within the continuous fluid path.
    Type: Application
    Filed: August 1, 2018
    Publication date: August 13, 2020
    Inventors: Yanwei Jia, Haoran LI, Ren SHEN, Cheng DONG, Tianlan CHEN, Jie GAO, Pui-ln MAK, Rui Paulo da Silva MARTINS
  • Publication number: 20200138972
    Abstract: In one aspect, methods of targeted nanoparticles and cell delivery are described herein, In some embodiments methods described herein comprise coupling nanoparticles and cells to a carrier cell to form a nanoparticle cell conjugate or cell-cell conjugate disposing the nanoparticle cell or cell-cell conjugate in a biological environment and delivering the nanoparticles and cells to target cells or tissues located within the biological environment The nanoparticles comprise a biodegradable photoluminescent polymer, and the nanoparticle cell conjugate is formed using one or more click chemistry reaction products
    Type: Application
    Filed: January 6, 2020
    Publication date: May 7, 2020
    Inventors: Jian Yang, Cheng Dong, Zhiwei Xie
  • Patent number: 10543285
    Abstract: In one aspect, methods of targeted nanoparticle and cell delivery are described herein. In some embodiments, methods described herein comprise coupling nanoparticles and cells to a carrier cell to form a nanoparticle-cell conjugate or cell-cell conjugate, disposing the nanoparticle-cell or cell-cell conjugate in a biological environment, and delivering the nanoparticles and cells to target cells or tissues located within the biological environment. The nanoparticles comprise a biodegradable photoluminescent polymer, and the nanoparticle-cell conjugate is formed using one or more click chemistry reaction products.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: January 28, 2020
    Assignee: The Penn State Researh Foundation
    Inventors: Jian Yang, Cheng Dong, Zhiwei Xie
  • Patent number: D872705
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: January 14, 2020
    Assignee: Shengyuan Science and Technology (Shenzhen) Co., Ltd.
    Inventor: Cheng Dong