• Title/Summary/Keyword: Remote Lecture

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The Synchronization of WWW Browsers between Server and Client on Web-based Real-time Remote Lecture (웹 기반의 실시간 원격강의를 위한 서버와 클라이언트간의 웹브라우저 동기화)

  • Lee, Jeom-Suk;Lee, Bu-Gwon;Seo, Yeong-Geon
    • The KIPS Transactions:PartA
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    • v.8A no.1
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    • pp.70-74
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    • 2001
  • A general web-based remote lecture system uses video data and audio data to provide synchronize between teacher and students. This system requires high bandwidth, high speed networking, television, compression and computing technologies between server and client for remote lecture over Internet. As a result, this system can decrease an efficiency for lecturing over current Internet. So, this paper proposes a new mechanism calling as ‘Synchronization of WWW browsers between server and client’to cope with above problems and finally pursues low cost needed for real-time remote lecture over Internet. The mechanism means that every browser of teacher and students displays the same page and the action of teacher is transferred to the browser of student. And, this can be implemented by Windows hooking APIs, Memory Mapping, and DLL (Dynamic Link Library) programming technology. This paper points to the design and implementation of LAS (Lecture Assistant Server) and LAC (Lecture Assistant Client) to perform the synchronization between server and client.

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A Study on the operation of smart remote lecture - Focusing on Cisco Webex meeting- (스마트 원격강의 운영에 관한 연구 -시스코 웹엑스 미팅을 중심으로-)

  • Kim, Seung-In;Lee, Kaha
    • Journal of Digital Convergence
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    • v.18 no.9
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    • pp.317-322
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    • 2020
  • The purpose of this study is to lay the groundwork for the operation method for correctly operating remote lectures at universities. Among the universities that started non-face-to-face classes due to 'COVID-19', college students and graduate students from some universities who conducted remote lectures through Cisco's Webex meeting were studied on how to operate the remote lecture platform. First, the requirements for lectures for remote lectures were established through the literature survey, and effective operation measures were proposed through the survey. The research method was conducted on a total of 45 college and graduate students from April 21 to May 15, 2020. The results of the study showed that the operation plan for the basic and meeting elements. Based on this study, we expect it to be used in disaster situations or classes that may occur after COVID-19. In the future, the usability evaluation of the remote class platform and the direction in which the domestic remote lecture platform should move should be presented.

A Design and Implementation of Study Region Detection System for Real-Time Remote Lecture Video Browsing on PDA Devices (PDA 디바이스에서 실시간 강의 영상 재생을 위한 학습 영역 추출 시스템 설계 및 구현)

  • Han, Eun-Young;Seo, Jung-Hee;Park, Hung-Bog
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2007.06a
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    • pp.619-622
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    • 2007
  • PDA provides an opportunity for users to study anytime and anywhere because it is portable and convenient thanks to its relatively small size. However, users may face difficulties to fully recognize the characters provided through lecture videos, due to its low resolution and small scaled screen. This thesis proposes a system of remote lecture in which the size of videos can be adjusted and transmitted on the basis of contents necessary for study, using detection of region-of-interest(ROI) image, and a method of image scaling in a bid to solve such a problem of PDAs. The experiment on 802.11b wireless network shows that the proposed system is able to provide more optimized lecture videos than in existing method.

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A Study on the Usability of Real-Time Remote Lecture Platform for Effective Learning Experience -Focused on ZOOM UI design layout- (효과적인 학습경험을 위한 실시간 원격강의 플랫폼 사용성 연구 -ZOOM UI디자인 레이아웃을 중심으로-)

  • Chung, Seung-Jae;Lee, Younjoon
    • Journal of Digital Convergence
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    • v.19 no.10
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    • pp.395-401
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    • 2021
  • In the digital era, Korean universities are using real-time remote lecture platforms as a tool for learning. However, it is confusing due to low usage experience problems, and usability studies are needed. The purpose of this study is to measure, analyze, and propose gaze tracking and learning experiences according to the UI design layout of ZOOM. A total of 30 subjects were selected to conduct eye tracking and survey when learning. The experiment showed that grid layouts have a higher emotional realism and learning satisfaction than other layouts. Furthermore, it turns out that participants focused the most attention on grid layouts. Therefore, for high learning experience, grid layouts and layouts that visually highlight participants and induce communication are needed.

Interactive Remote Lecture System Based on IPv6 Multicast Services (IPv6 멀티캐스트 기반의 쌍방향 원격 강의 시스템)

  • Kang, Sung-Ho;Choo, Young-Yeol
    • The Journal of the Korea Contents Association
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    • v.6 no.11
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    • pp.295-301
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    • 2006
  • The scope ID field of IPv6 multicast address indicates the zone of the destination for which a multicast traffic is intended. Without any further examination on the header field, the scope ID enables a router to determine whether the traffic will be forwarded to a subnet or not. For the graceful migration from IPv4 networks to IPv6 networks, various IPv6 applications working through IPv4 networks are indispensable during the migration period. This paper describes development of an interactive remote lecture system providing service integration on voice, image, and data of teaching materials. Access right to the network for dialog among multicast group members is controlled via additional TCP (Transmission Control Protocol) session. A jitter buffer algorithm was implemented to improve the voice communication jitters.

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Implementation of a Multimedia Remote Lecture based on Windows NT (Windows NT 기반 멀티미디어 원격강좌의 구현)

  • 권호열;김현진;김주필
    • Proceedings of the Korean Information Science Society Conference
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    • 1999.10b
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    • pp.688-690
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    • 1999
  • 본 논문에서는 Windows NT 기반아래 구현된 멀티미디어 원격강좌를 구현하였다. Windows NT와 SQL Server는 사용자 인증 및 자원관리를 담당하며, 원격강좌 내의 모든 자료는 널리 쓰이는 HWP 형식자료를 활용할 수 있으며, 문서자료에 음성 및 동영상, URL 링크 등을 지원하는 PDF 형식으로 제공된다. 구현된 원경강좌를 활용한 운영결과와 향후 과제 등이 논의되었다.

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Design and Implementation of the Remote Lecture for Network Environment (네트워크 환경에 따른 원격강의 시스템의 설계 및 구현)

  • 고대영;류광렬;김정태;허창우
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2004.05b
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    • pp.311-314
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    • 2004
  • 본 논문은 학습자의 네트워크 환경에 따라서 전송속도를 선택하여 학습할 수 있는 원격강의 시스템을 설계하였다. Windows Media의 스트리밍 대역폭을 300k, 80K, 22K로 제공함으로서 학습자의 네트워크 환경을 고려하였다. 본 시스템은 시간과 공간을 극복한 가상강의에서 학습자의 네트워크 환경을 고려함으로써 재수강의 용이성에 초점을 두고 설계하였다.

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Evaluation and Design of Remote Lecture Learning System for the Chinese Character in Edutainment (원격강의용 Edutainment식 한자 학습 시스템의 설계 및 평가)

  • 이은아;김태석
    • Proceedings of the Korea Multimedia Society Conference
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    • 2004.05a
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    • pp.714-719
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    • 2004
  • 본 논문에서는 인터넷으로 한자 학습을 하고자 하는 이들이 학습을 좀 더 재미있게 하기 위하여 Edutainment식 한자 학습을 제안하고 있다. Edutainment식 한자 학습은 한자의 변천과정을 이용한 한자 학습, 게임을 이용한 한자 학습, 애니메이션을 이용한 한자 학습, 한자-한글 상호변환을 이용한 한자 학습 네 가지로 구성되어있다. Edutainment식 한자 학습의 결과는 설문을 이용하여 평가하였으며 평가 결과는 흥미도나 학습도 동기 유발 둥에서 Edutainment식 한자 학습이 학습자의 흥미를 유발하여 효과를 좀 더 높게 얻는 것으로 평가되었다.

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A Study on the Usability of University Remote Lecture -Focusing on Zoom and Webex Meetings- (대학 원격강의 프로그램의 사용성 연구 -Zoom과 Webex Meetings를 중심으로-)

  • Shin, Jun;Kim, Seung-In
    • Journal of Digital Convergence
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    • v.18 no.10
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    • pp.403-408
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    • 2020
  • This paper is to evaluate the usability of two representative video meeting services currently used by university for research to improve the quality of university remote lecture. questionnaires based on Kano Model were designed and in-depth interviews were conducted to provide qualitative approaches. Screen-sharing functions, the one-dimensional functions was the most important function. and attractive functions had relatively diverse directions. For essential functions, there was a wide gap in quality due to user-specific equipment. The function in which other platforms exist or business-related was not important. Webex reacted negatively to the aging UI, while Zoom responded negatively to the unilateral mute function. In addition, the development direction was presented in five ways as a result of analysis of these results. under Corona-19 situation, I hope this study will lead to continuous research to make stepping stone for remoted educational development.

SMIL Extensions for Representation and Streaming of Lecture Contents (원격강의 컨텐츠의 표현과 스트리밍을 위한 SMIL 확장에 대한 연구)

  • 최용준;정상준;권은영;구자효;김종근
    • Journal of Korea Multimedia Society
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    • v.6 no.3
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    • pp.527-538
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    • 2003
  • The contents of remote lectures are written by authoring tools or animation tools. Written contents then integrate existing medias, and are stored in a file type, which is added to the lecturing activities of lecturers. These files are stored according to the kinds of each authoring tool. So, there is no interchangeability and the efficiency of each media is not so good. Due to these structural features, it is not possible to do streaming lectures in on-line environments. In this study, a technique was suggested, which guarantees the interchangeability of remote lecturing contents using SMIL which is a synchronizing multimedia language. The suggested technique is an extended type of SMIL, and includes tags to represent the lectures of tutors which are the specific feature of remote lectures. Additionally, a model, which does streaming SMIL remote lecture contents through on-line, and which transfers control techniques are suggested. The remote lecture contents established by the proposed method can be applied to all authoring tools for remote lectures just by installing conversion modules, and can be a kind of expression model of the synchronizing model for streaming service in on-line environment.

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