Patents by Inventor Hoeseok YANG

Hoeseok YANG 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: 11480617
    Abstract: A real-time scheduling apparatus and method for suppressing battery aging of a satellite system are disclosed. A real-time scheduling method for suppressing battery aging of a satellite system according to an exemplary embodiment of the present disclosure may include acquiring task information including a request period and an execution time of each of a plurality of tasks which is performed in the satellite system; determining an execution limit range and an execution order for each of the plurality of tasks which satisfies a predetermined real-time constraint based on the task information; and determining an optimal execution timing within the execution limit range of each of the plurality of tasks, based on the execution order and consumed current information of each of the plurality of tasks.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: October 25, 2022
    Assignee: AJOU UNIVERSITY INDUSTRY—ACADEMIC COOPERATION FOUNDATION
    Inventors: Hoeseok Yang, Seongik Jang
  • Publication number: 20220261305
    Abstract: An apparatus and a method for optimizing a satellite system considering a hard error stability and a soft error stability are disclosed. The satellite system optimizing method which considers a hard error stability and a soft error stability according to an exemplary embodiment of the present disclosure includes acquiring hardware information of a processor which is loaded in the satellite system; acquiring workload information including a task which is performed by the processor; establishing a scheduling policy for the task based on the hardware information and the workload information; and quantifying a soft error stability and a hard error stability in accordance with the scheduling policy.
    Type: Application
    Filed: January 14, 2022
    Publication date: August 18, 2022
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERAITON FOUNDATION
    Inventors: Hoeseok YANG, Beomsik Kim
  • Publication number: 20220244315
    Abstract: A real-time scheduling apparatus and method for suppressing battery aging of a satellite system are disclosed. A real-time scheduling method for suppressing battery aging of a satellite system according to an exemplary embodiment of the present disclosure may include acquiring task information including a request period and an execution time of each of a plurality of tasks which is performed in the satellite system; determining an execution limit range and an execution order for each of the plurality of tasks which satisfies a predetermined real-time constraint based on the task information; and determining an optimal execution timing within the execution limit range of each of the plurality of tasks, based on the execution order and consumed current information of each of the plurality of tasks.
    Type: Application
    Filed: January 27, 2022
    Publication date: August 4, 2022
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Hoeseok YANG, Seongik Jang
  • Patent number: 11042742
    Abstract: Disclosed are convolutional neural network-based road detecting apparatus and method and a convolutional neural network-based road detecting method according to an exemplary embodiment of the present disclosure includes applying a dilation operation to a ground truth for a road image of a learning image, training an inference model which detects a road region from a satellite image based on the learning image and the ground truth to which the dilation operation is applied, and receiving a prediction target image and generating an original segmentation map in which a road region is detected from the prediction target image by means of the inference model.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: June 22, 2021
    Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Hoeseok Yang, Heeji Im
  • Patent number: 11023022
    Abstract: The present disclosure relates to an apparatus and method for improving thermal cycling reliability of a multicore microprocessor, and a method for a method for improving thermal cycling reliability of a multicore microprocessor according to an embodiment of the present disclosure includes determining an optimal temperature of a microprocessor to maximize a mean time to failure of the microprocessor, and increasing at least one of an operating frequency of the microprocessor or a processor utilization of the microprocessor to make a temperature of the microprocessor equal to or higher than the optimal temperature.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: June 1, 2021
    Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Hoeseok Yang, Beomsik Kim
  • Publication number: 20210150363
    Abstract: Disclosed are an apparatus and a method of multi-phase pruning a neural network with multi-sparsity levels and an SIMD-based neural network pruning method, and the SIMD-based neural network pruning method according to an exemplary embodiment of the present disclosure includes GEMM-transforming an internode weight kernel applied to a layer in a neural network; and pruning the GEMM-transformed weight kernel with a predetermined SIMD width as a unit.
    Type: Application
    Filed: November 18, 2020
    Publication date: May 20, 2021
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Hoeseok YANG, Kyusik Choi, Jeonggyu Jang
  • Publication number: 20200379527
    Abstract: The present disclosure relates to an apparatus and method for improving thermal cycling reliability of a multicore microprocessor, and a method for a method for improving thermal cycling reliability of a multicore microprocessor according to an embodiment of the present disclosure includes determining an optimal temperature of a microprocessor to maximize a mean time to failure of the microprocessor, and increasing at least one of an operating frequency of the microprocessor or a processor utilization of the microprocessor to make a temperature of the microprocessor equal to or higher than the optimal temperature.
    Type: Application
    Filed: January 24, 2020
    Publication date: December 3, 2020
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Hoeseok YANG, Beomsik KIM
  • Publication number: 20200174849
    Abstract: The present disclosure relates to a dataflow optimization method for low-power operation of a multicore system, the dataflow optimization method including: a step (a) of creating an FSM including a plurality of system states in consideration of dynamic factors that trigger a transition in system states for original dataflow; and a step (b) of optimizing the original dataflow through optimization of the created FSM.
    Type: Application
    Filed: July 12, 2019
    Publication date: June 4, 2020
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Hoeseok YANG, Hyeonseok JUNG