• ETRI Journal
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• v.31 no.6
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• pp.795-802
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• 2009

This paper presents the design of an advanced terrestrial digital multimedia broadcasting (AT-DMB) baseband receiver SoC. The AT-DMB baseband is incorporated into a hierarchical modulation scheme consisting of high priority (HP) and low priority (LP) stream decoders. The advantages of the hierarchical modulation scheme are backward compatibility and an enhanced data rate. The structure of the HP stream is the same as that of the conventional T-DMB system; therefore, a conventional T-DMB service is possible by decoding multimedia data in an HP stream. An enhanced data rate can be achieved by using both HP and LP streams. In this paper, we also discuss a time deinterleaver that can deinterleave data for a time duration of 384 ms or 768 ms. The interleaving time duration is chosen using the LP symbol mapping scheme. Furthermore, instead of a Viterbi decoder, a turbo decoder is adopted as an inner error correction system to mitigate the performance degradation due to a smaller symbol distance in a hierarchically modulated LP symbol. The AT-DMB baseband receiver SoC is fabricated using 0.13 ${\mu}m$ technology and shows successful operation with a 50 mW power dissipation.

• Journal of Korea Society of Industrial Information Systems
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• v.12 no.5
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• pp.71-85
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• 2007

In recent years, the need of the education for the Internet ethics is emphasized as the number of offenses committed by juveniles is increasing. So many researches on the methodologies about educating the Internet ethics have been being performed But, those are not competent to make young people inspire the sense of ethics in the cyber-space because they get trained by the cramming system of education with a textbook in their schools. In this paper, we developed a web-based learning model and an learning system including various multimedia materials that induce the learners for ethics to study actively. And then we applied our system to school education for the Internet ethics, and verified the effectiveness of our learning model and system.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.12 no.2
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• pp.49-70
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• 2001

The possibility of the struggle over copyrighting is increasing with the necessity and expectation of using other works by the developing multimedia technology. In multimedia environment compared with the past, the reproduction of works has some characteristics, such as easy reproduction, the high quality, and easy modification. Also, many composite and interactive works are produced, but there are different characteristics from traditional materials. From free access to information based upon multimedia's characteristics, a problem, which works can be used without any restriction, should be solved. Thus, past copyright law may be amended based upon multimedia environment. The problem which should be solved is also discussed.

• Journal of Digital Contents Society
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• v.16 no.5
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• pp.707-715
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• 2015

With the development of computer technology, the multimedia mediums that allow for animated videos, conversational illustrations are increasingly receiving attention for materials for educational purposes. Accordingly, there is a need to research whether multimedia resources and material is more effective compared to traditional educational material and resources. This study aims to compare traditional English reading and writing learning methods with learning methods using educational multimedia mediums such as illustrations or animation. Students were divided into a experimental group and a control group, and during 6 months the groups were exposed to different educational resources and on the basis of student evaluation feedback and grades, a new approach to English education is offered.

• Cross-Cultural Studies
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• v.25
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• pp.549-596
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• 2011

This paper aims to introduce some useful multimedia freewares, and also support Chinese instructor with discussing how to operate them for instructional design of multimedia language learning class. For this aims, this paper consists of three parts: First, instructional design. This part is focused to what kind of instructional model to be based on, for example, Dick & Carey model, ADDIE model, ASSURE model etc. This part introduces these models, and modifies ADDIE and ASSURE model to D.D.A.I.E.S and S.S.A.U.R.E.S as 'A(nalysis)' in these model may apply to the next 'D(evelopment)' on ADDIE, 'S(elect Methods, Media and Materials)' on ASSURE in the practical Chinese class. Second, Programme: What to use. This part is focused to what kind of free software we can use. In the web site online, there are huge free softwares so we usually hesitate to select and also don't know how to operate even though selected one of them. This part, accordingly, introduces ten of useful freewares and compares each other in terms of usefulness for Chinese instructors. Third, Programme: How to use. It is of no use just to know what to use but not to know how to operate, so this part describes how to use freewares like a kind of manual in detail as far as possible. In conclusion, we hope more Chinese instructors to learn and use more useful freewares for designing the better multimedia Chinese class by this paper.

• Proceedings of the Korea Multimedia Society Conference
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• 2001.06a
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• pp.395-398
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• 2001

웹을 기반으로 하는 개방적이고 유연한(Open and Flexible) 많은 교수 및 학습 시스템(Teaching and Learning Systems)이 개발되어 사용되어지면서 교육현장에서 교육의 패러다임이 급변하고 있다. 이에 따라 본 연구에서는 누구나 언제 어디서나 (Anyone, Anytime and Anywhere) 교수 및 학습이 가능한 웹기반 원격장의 시스템에서 원적교육의 방식과 특성을 모색해보고 쌍방향 멀티미디어 원격교육을 가능하게 하는 GVA를 이용하여 코스웨어를 구현함으로써 원격교육시스템의 실질적인 대안을 제시한다.

• Journal of Korea Multimedia Society
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• v.22 no.8
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• pp.974-982
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• 2019

Contemporary narrative and documentary share across boundaries between the 'actuality' and the 'creative treatment.' The documentary has blended modes of representation from various genre to reflect the world changing. The narrative movies also has applied the historicality of 'evidence' and 'documents' from documentary to obtain the new form of realism. Boyhood shows a differentiated realism to retain both the narrative structure and the documentary temporality, containing 12 years of timeline with the limited artificial space time. Boyhood also takes the analogical concept of 'the dramatization of the actual materials' from the early documentary films.

• Journal of Korea Multimedia Society
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• v.20 no.7
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• pp.1102-1112
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• 2017

The purpose of this study is to design and application of term project model for Game Math in flipped learning environment. In the term project self study model, students interacts with multi-instruction materials and multi-tutors on flipped learning. We develop a case for game update term project and implement it to a real Game Math classroom. As a result, we show the positive learning experiences focused on effects of technology and human relation through survey.

• Journal of Korean Academy of Nursing
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• v.39 no.2
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• pp.249-258
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• 2009

Purpose: The purpose of this study was to develop a multimedia learning program for patients with diabetes mellitus (DM) diet education using standardized patients and to examine the effects of the program on educational skills, communication skills, DM diet knowledge and learning satisfaction. Methods: The study employed a randomized control posttest non-synchronized design. The participants were 108 third year nursing students (52 experimental group, 56 control group) at K university in Seoul, Korea. The experimental group had regular lectures and the multimedia learning program for DM diet education using standardized patients while the control group had regular lectures only. The DM educational skills were measured by trained research assistants. Results: The students who received the multimedia learning program scored higher for DM diet educational skills, communication skills and DM diet knowledge compared to the control group. Learning satisfaction of the experimental group was higher than the control group, but statistically insignificant. Conclusion: Clinical competency was improved for students receiving the multimedia learning program for DM diet education using standardized patients, but there was no statistically significant effect on learning satisfaction. In the nursing education system there is a need to develop and apply more multimedia materials for education and to use standardized patients effectively.

• Proceedings of the Korean Magnestics Society Conference
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• 2002.12a
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• pp.138-139
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• 2002

Polymer-bonded magnetostrictive composites have some distinct advantages over conventional type materials in being cost effective and suitable for high frequency applications due to high electrical resistivity. Composites of rare earth based alloys were reported to show good magnetostrictive characteristics both in static and dynamic conditions [1]. It was originally thought that the application of the polymer-bonding technique to transition metal alloys is straightforward. (omitted)