公开(公告)号：US20170150489A1

公开(公告)日：2017-05-25

申请号：US15288177

申请日：2016-10-07

Applicant: Korea Advanced Institute of Science and Technology

Inventor： JunKyun CHOI ,  Seung Hyun JEON ,  Sanghong AHN

IPC: H04W72/04 ,  H04L29/08 ,  H04W40/02

CPC classification number: H04W72/048 ,  H04L67/2842 ,  H04W40/02 ,  H04W84/18

Abstract: A user centric cache allocation (UCA) method and apparatus in an infrastructure wireless mesh network (WMN) are disclosed. The method includes determining an allocation of a cache in a mesh router (MR) for content stored in the MR in an environment where mobile terminals and MRs establish the infrastructure WMN and allocating the cache to the content based on the determination allocation.

公开(公告)号：US20180227586A1

公开(公告)日：2018-08-09

申请号：US15662986

申请日：2017-07-28

Applicant: Korea Advanced Institute of Science and Technology

Inventor： JunKyun CHOI ,  Hyo Jin PARK

IPC: H04N19/31 ,  H04N19/597 ,  H04N19/61 ,  H04N19/615 ,  H04N21/218

CPC classification number: H04N19/31 ,  H04N19/597 ,  H04N19/61 ,  H04N19/615 ,  H04N21/21805 ,  H04N21/2365 ,  H04N21/2401 ,  H04N21/242 ,  H04N21/2662 ,  H04N21/4307 ,  H04N21/4347

Abstract: A method and a system for media synchronization are described. The method for media synchronization may include collecting stream source information, generating network delay information between stream sources by performing a delay test between the stream sources, setting synchronization information of a stream source corresponding to a specific channel based on the collected stream source information and the network delay information, measuring network delay with at least one user terminal to receive the stream source, and updating the synchronization information based on the measured network delay.

公开(公告)号：US20220377130A1

公开(公告)日：2022-11-24

申请号：US17477596

申请日：2021-09-17

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： JunKyun CHOI ,  Nakyoung KIM ,  Dae-Jin KIM ,  Hyunseo PARK

IPC: H04L29/08 ,  G16Y10/75

Abstract: A coding and Incentive-based distributed computing management system includes: a parameter server that publishes a gradient descent computation task to update parameters of distributed computing, sends the published task to end devices, and groups end devices into clusters by receiving related information from the plurality of end devices, determines the number of stragglers in each cluster and sends the number of stragglers to the end devices, along with an encoding scheme for gradient descent computation, and distributes incentive to the end devices based on encoded results and the end devices that receive the published task from the parameter server, sends an intention to participate in the published task and related information to the parameter server, determines CPU-cycle frequencies by receiving information on the grouping of the end devices and related information from the parameter server, and performs encoding for gradient descent computation and send a computed gradient to the parameter server.

公开(公告)号：US20220167174A1

公开(公告)日：2022-05-26

申请号：US17521535

申请日：2021-11-08

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Hyeontaek OH ,  Minkyung KIM ,  JunKyun CHOI ,  Nakyoung KIM

IPC: H04W12/60 ,  H04W12/043 ,  H04L29/06

Abstract: An intelligent trust enabler system for a 5G IoT (fifth-generation Internet of Things) environment includes: an IoT trust enabler mounted on an edge and gateway on a fifth-generation (5G) IoT infrastructure, for providing trust information based on data collected from IoT devices and performing operation and management of connected IoT resources; and an IoT trust agent for providing a legacy environment for the IoT trust enabler.