Patents by Inventor Jun Duan

Jun Duan 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: 20220050962
    Abstract: Aspects of the present disclosure relate to converting between structured and tabular data formats. Data can be received in a tabular format. An array can be built for each of a plurality of objects within the data in the tabular format, each object corresponding to at least one identified header of the identified headers. A data row can be parsed using at least one of the built arrays and data within the data row can be added to the structured format in a specific location based characteristics indicated in the at least one array. Data can also be converted from the structured format into the tabular format using the built arrays.
    Type: Application
    Filed: August 14, 2020
    Publication date: February 17, 2022
    Inventors: Qi Ming Teng, Christopher Peter Baker, Sai ZENG, Jun Duan
  • Publication number: 20220050720
    Abstract: A computer-implemented method for managing one or more operations of a workload includes selecting a resource type for workload management on a platform. One or more operations of the selected resource to be managed are identified. A reconciliation time for execution of each of the identified operations is determined. A reconciliation period between two consecutive reconciliations is determined for each of the identified operations. A minimum number of processes for workload management of a given set of the operations on resources is calculated, and the determined minimum number of processes is deployed to manage the workload.
    Type: Application
    Filed: August 15, 2020
    Publication date: February 17, 2022
    Inventors: Braulio Gabriel Dumba, Ubaid Ullah Hafeez, Abdulhamid Adebayo, Jun Duan, Alexei Karve, Sai Zeng
  • Publication number: 20210334677
    Abstract: A machine learning assessment system is provided. The system identifies multiple datasets and multiple machine learning (ML) modeling algorithms based on the client profile. The system assesses a cost of data collection for each dataset of the multiple datasets. The system assesses a performance metric for each ML modeling algorithm of the multiple modeling algorithms. The system recommends a dataset from the multiple datasets and an ML modeling algorithm from the multiple ML modeling algorithm based on the assessed costs of data collection for the multiple datasets and the assessed performance metrics for the multiple ML modeling algorithms.
    Type: Application
    Filed: April 26, 2020
    Publication date: October 28, 2021
    Inventors: Sai Zeng, Braulio Gabriel Dumba, Jun Duan, Matthew Staffelbach, Emrah Zarifoglu, Umar Mohamed Iyoob, Manish Mahesh Modh
  • Publication number: 20210206670
    Abstract: The invention relates to composite compositions including a carbonaceous material and a photocatalyst. The invention includes compositions and various methods, including methods for removing one or more contaminants from a substance such as air, soil, and water.
    Type: Application
    Filed: September 25, 2020
    Publication date: July 8, 2021
    Inventors: Dongye ZHAO, Wen LIU, Fan LI, Tianyuan XU, Yangmo ZHU, Jun DUAN, Zongsu WEI
  • Publication number: 20210057588
    Abstract: A memristor with a two-dimensional (2D) material heterojunction and a preparation method thereof is provided. The memristor includes a substrate, a bottom electrode layer, a 2D material heterojunction layer and a top electrode layer from bottom to top. The 2D material heterojunction layer serves as an intermediate dielectric layer, and has a two-layer laminate structure composed of two different transitional metal dichalcogenides (TMDCs), with one layer in the laminate structure corresponding to one of the TMDCs. The present invention constructs a novel memristor totally based on 2D materials by improving the materials used for key functional layers in the device and the design for the overall structure of the device. Compared with the prior art, the present invention completely different from the conventional metal/insulator/metal (MIM) structure, and has advantages, such as lower operating voltage, excellent retention and switching stability.
    Type: Application
    Filed: August 21, 2020
    Publication date: February 25, 2021
    Inventors: Wei XIONG, Wenguang ZHANG, Leimin DENG, Jingwei LIU, Hao WU, Jun DUAN
  • Patent number: 10873625
    Abstract: Techniques facilitating service management for the infrastructure of blockchain networks are provided. A system comprises a memory and a processor that executes computer executable components stored in the memory. The computer executable components can comprise an allocation component, a grouping component, and an implementation component. The allocation component can assign, within a blockchain network, a first group of nodes of a first node type to a first set of operation slots and a second group of nodes of a second node type, different than the first node type, to a second set of operation slots. The grouping component can aggregate the second group of nodes assigned to the second set of operation slots with the first group of nodes within the first set of operation slots. The implementation component can execute a service management operation. A consensus algorithm can be satisfied during an execution of the service management operation.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: December 22, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORA ! ION
    Inventors: Sai Zeng, Jun Duan, Alexei Karve, Neeraj Asthana, Vugranam C. Sreedhar, Nerla Jean-Louis
  • Publication number: 20200303578
    Abstract: A solar power generation component provided by the present disclosure includes a first substrate, a photoelectric transformation element, a reticular reflective layer and a second substrate deposed in sequence from top to bottom, the photoelectric transformation element includes a plurality of solar cell chips, the plurality of solar cell chips are disposed on the reticular reflective layer, and the adjacent solar cell chips define a gap, the reticular reflective layer includes a reticular frame located below the gaps among the plurality of solar cell chips.
    Type: Application
    Filed: July 17, 2017
    Publication date: September 24, 2020
    Inventors: Jun DUAN, Chengjian HONG, Dezheng HU, Yuanmin LI, Xixiang XU
  • Patent number: 10506680
    Abstract: A driving apparatus configured to drive a light emitting device includes a driving current source module operable to supply current to the light emitting device via a node during operation. A protection module coupled to the node and the driving current source module selectively injects current to the node during operation. The driving current source module is controlled based on a detection result of a voltage on the node.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: December 10, 2019
    Assignee: STMicroelectronics (Shenzhen) R&D Co. Ltd
    Inventors: Tao Tao Huang, Yi Jun Duan
  • Publication number: 20190268407
    Abstract: Techniques facilitating service management for the infrastructure of blockchain networks are provided. A system comprises a memory and a processor that executes computer executable components stored in the memory. The computer executable components can comprise an allocation component, a grouping component, and an implementation component. The allocation component can assign, within a blockchain network, a first group of nodes of a first node type to a first set of operation slots and a second group of nodes of a second node type, different than the first node type, to a second set of operation slots. The grouping component can aggregate the second group of nodes assigned to the second set of operation slots with the first group of nodes within the first set of operation slots. The implementation component can execute a service management operation. A consensus algorithm can be satisfied during an execution of the service management operation.
    Type: Application
    Filed: February 26, 2018
    Publication date: August 29, 2019
    Inventors: Sai Zeng, Jun Duan, Alexei Karve, Neeraj Asthana, Vugranam C. Sreedhar, Nerla Jean-Louis
  • Publication number: 20190141811
    Abstract: A driving apparatus configured to drive a light emitting device includes a driving current source module operable to supply current to the light emitting device via a node during operation. A protection module coupled to the node and the driving current source module selectively injects current to the node during operation. The driving current source module is controlled based on a detection result of a voltage on the node.
    Type: Application
    Filed: January 2, 2019
    Publication date: May 9, 2019
    Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd
    Inventors: Tao Tao HUANG, Yi Jun DUAN
  • Patent number: 10212775
    Abstract: A driving apparatus configured to drive a light emitting device includes a driving current source module operable to supply current to the light emitting device via a node during operation. A protection module coupled to the node and the driving current source module selectively injects current to the node during operation. The driving current source module is controlled based on a detection result of a voltage on the node.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: February 19, 2019
    Assignee: STMicroelectronics (Shenzhen) R&D Co. Ltd
    Inventors: Tao Tao Huang, Yi Jun Duan
  • Publication number: 20180242419
    Abstract: A driving apparatus configured to drive a light emitting device includes a driving current source module operable to supply current to the light emitting device via a node during operation. A protection module coupled to the node and the driving current source module selectively injects current to the node during operation. The driving current source module is controlled based on a detection result of a voltage on the node.
    Type: Application
    Filed: April 18, 2018
    Publication date: August 23, 2018
    Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd
    Inventors: Tao Tao Huang, Yi Jun Duan
  • Patent number: 9980333
    Abstract: A driving apparatus configured to drive a light emitting device includes a driving current source module operable to supply current to the light emitting device via a node during operation. A protection module coupled to the node and the driving current source module selectively injects current to the node during operation. The driving current source module is controlled based on a detection result of a voltage on the node.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: May 22, 2018
    Assignee: STMicroelectronics (Shenzhen) R&D Co. Ltd
    Inventors: Yi Jun Duan, Tao Tao Huang
  • Patent number: 9936654
    Abstract: The invention discloses a Dendrobium in vitro crossbreeding method. The method can be used to greatly shorten the maturation period of fruits, to enable a hybrid to bloom in vitro in a short period so as to observe flower shapes and colors, and to cultivate a novel variety, thus accelerating Dendrobium breeding, the first such report internationally. Since in vitro Dendrobium blooms annually, it enables crossbreeding of varieties having different inflorescences in nature. In addition, the medium used at each stage of the invention utilizes Hyponex which has a unique composition and costs little, thus allowing for a high blossoming rate and rapid fruit development. Also, only simple plant tissue culture equipment is required for implementing the invention, thus the entire breeding method is simple and low cost, and provides conditions for cultivating of high-quality Dendrobium varieties.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: April 10, 2018
    Assignee: SOUTH CHINA BOTANICAL GARDEN, CHINESE ACADEMY OF SCIENCES
    Inventors: Songjun Zeng, Kunlin Wu, Jianxia Zhang, Feng Zheng, Jun Duan
  • Patent number: 9866136
    Abstract: A power converter can include an electrical isolation circuit between input and output nodes. An input signal monitor node can be provided, such as on a converter output side of the isolation circuit. In an example, a peak detection circuit can be coupled to the input signal monitor node. The output node of the power converter can be configured to supply an output power signal that is a function of an input signal at the input node. The power converter can include multiple, independently-switchable switches at one or more of the input and output sides of the isolation circuit. In an example, the power converter with the input signal monitor node can be configured as a bias supply to provide power, at the output node, to a controller circuit for a main stage power converter circuit.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: January 9, 2018
    Assignee: Analog Devices Global
    Inventors: Jun Duan, Liuqing Yang, Xudong Huang, Zhijie Zhu, Renjian Xie
  • Publication number: 20170223796
    Abstract: A driving apparatus configured to drive a light emitting device includes a driving current source module operable to supply current to the light emitting device via a node during operation. A protection module coupled to the node and the driving current source module selectively injects current to the node during operation. The driving current source module is controlled based on a detection result of a voltage on the node.
    Type: Application
    Filed: April 13, 2017
    Publication date: August 3, 2017
    Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd
    Inventors: Yi Jun Duan, Tao Tao Huang
  • Patent number: 9661701
    Abstract: A driving apparatus configured to drive a light emitting device includes a driving current source module operable to supply current to the light emitting device via a node during operation. A protection module coupled to the node and the driving current source module selectively injects current to the node during operation. The driving current source module is controlled based on a detection result of a voltage on the node.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: May 23, 2017
    Assignee: STMicroelectronics (Shenzhen) R&D Co. Ltd
    Inventors: Tao Tao Huang, Yi Jun Duan
  • Patent number: 9490762
    Abstract: Described herein is an electronic device. The electronic device includes a unity gain buffer having an input coupled to an input node to receive an input voltage and an output coupled to an output node. A current sink circuit operates in a sleep mode in an absence of a sink current flowing into the output node, and operates in a sinking mode to sink the sink current from the output node to a reference supply node when the sink current flows into the output node.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: November 8, 2016
    Assignee: STMicroelectronics (Shenzhen) R&D Co. Ltd
    Inventor: Yi Jun Duan
  • Patent number: 9370059
    Abstract: A driving apparatus configured to drive a light emitting device includes a driving current source module operable to supply current to the light emitting device via a node during operation. A protection module coupled to the node and the driving current source module selectively injects current to the node during operation. The driving current source module is controlled based on a detection result of a voltage on the node.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: June 14, 2016
    Assignee: STMICROELECTRONICS (SHENZHEN) R&D CO. LTD.
    Inventors: Yi Jun Duan, Tao Tao Huang
  • Publication number: 20160143236
    Abstract: The invention discloses a Dendrobium in vitro crossbreeding method. The method can be used to greatly shorten the maturation period of fruits, to enable a hybrid to bloom in vitro in a short period so as to observe flower shapes and colors, and to cultivate a novel variety, thus accelerating Dendrobium breeding, the first such report internationally. Since in vitro Dendrobium blooms annually, it enables crossbreeding of varieties having different inflorescences in nature. In addition, the medium used at each stage of the invention utilizes Hyponex which has a unique composition and costs little, thus allowing for a high blossoming rate and rapid fruit development. Also, only simple plant tissue culture equipment is required for implementing the invention, thus the entire breeding method is simple and low cost, and provides conditions for cultivating of high-quality Dendrobium varieties.
    Type: Application
    Filed: July 19, 2013
    Publication date: May 26, 2016
    Applicant: SOUTH CHINA BOTANICAL GARDEN, CHINESE ACADEMY OF SCIENCES
    Inventors: Songjun Zeng, Kunlin Wu, Jianxia Zhang, Feng Zheng, Jun Duan