• 한국통신학회:학술대회논문집
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• 한국통신학회 2004년도 하계종합학술발표회논문초록집
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• pp.187-187
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• 2004

• 디지털융복합연구
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• 제6권2호
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• pp.97-105
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• 2008

This paper tries to measure the spill-over effect of the production and investment of telecommunication service industry (hereafter telecommunication industry), using the most recent data of 2003 input-output tables. The results are summarized as follows. First, the industries which have the biggest spill-over effect from the production of telecommunication industry is miscellaneous business service (including the sale commission of telecommunication service), other engineering services (including royalty), and business consumption. Second, the production of telecommunication industry induces more value-added, and less production, less import, and less employment than related industries such as radio and television equipment, communications and broadcasting equipment, and computer and peripheral equipment. Third, while the investment of telecommunication service amounts to 15% of its production, the effect of the investment on production, value-added, consumption, and employment reaches 70% of that of its production. The policy implication of this paper is that the telecommunication industry contributes to overall economy mainly through its investment.

• 기술혁신학회지
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• 제3권1호
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• pp.100-112
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• 2000

Significant changes have taken plane in the broadcasting environment as a result of digitalization the emergence of digital television and the convergence of broadcasting and telecommunication. Using input-output analysis this paper analyzes the value of economic effect of digital television in Korea The empirical result shows that total production is expected to increase about 252 trillion Won for the period of 1999-2010.

• 한국전자통신학회논문지
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• 제4권4호
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• pp.253-258
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• 2009

통신기술의 급속적인 발달 및 방송의 디지털화와 같은 기술적 발전에 의해 방송과 통신의 융합이 빠르게 전개 되고 있다. 더욱 광대역화된 인터넷을 이용하여 TV의 방송 프로그램을 시청하면서 다양한 통신 서비스를 이용할 수 있는 IPTV(Internet Protocol Television)가 방송통신 융합의 대표적인 서비스로 나타나고 있다. 이에, IPTV의 서비스 구성에 대하여 알아보고 고품질 서비스를 위한 주요기술 이슈에 대해 알아보고 대안을 제시하고자 한다.

• 한국언론정보학보
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• 제27권
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• pp.213-245
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• 2004

방송 통신의 융합이 진전됨에 따라, 방송과 통신이 분리되어 규제되는 현재의 법과 제도는 상당한 문제점을 일으키고 있다. 통신망과 방송망 허가의 실질적인 권한이 규제 기관별로 분리되어 있기 때문에 통신망과 방송망의 융합에 따른 이중규제의 문제뿐만 아니라 새롭게 탄생하고 있는 신규 융합서비스를 어떠한 서비스로 분류할 것인가에 대한 논란도 제기되고 있다. 따라서 원활한 방송 통신의 융합을 촉진시키고 기존의 방송과 통신 산업의 지속적인 발전을 도모하기 위하여 방송과 통신에 대한 합리적인 규제 차등화 기준과 방송과 통신의 중간영역에 위치한 서비스들에 대한 새로운 규제환경이 필요하다. 그러나 아직 방송과 통신의 융합에 적절히 대응하기 위한 사회적 합의는 이루어지지 않은 것으로 보인다. 비록 2004년 3월에 새로운 방송법이 통과되었지만, 통과된 방송법을 살펴보면 방송과 통신의 개념에 대한 논리적인 기준을 적용하기보다는 두 기관의 이익을 어느 정도 충족시킨 미봉책에 불과하다고 결론지을 수밖에 없다. 이는 새로운 유형의 서비스가 도입되었을 때, 정보통신부와 방송위원회가 또다시 소모적인 논쟁을 되풀이할 수밖에 없음을 의미하고, 이는 통신방송 융합서비스에 대한 논쟁이 여전히 일종의 '규제의 아노미 상태'에서 벗어나지 못하고 있음을 암시한다. 따라서 본 연구는 방송과 통신의 융합 환경 속에서 전통적인 방송과 통신의 개념에 바탕을 둔 서비스의 분류가 어려워지고 있음을 지적하고, 환경변화에 부합하는 새로운 융합서비스의 개념을 방송과 통신 공공재적 특성과 양방향적 특성에 기반하여 이해해 보고자 한다. 특히 본 논문은 방송과 통신의 융합현상에 대한 '논의의 정체'를 극복하기 위한 대안으로, 기존의 논의 틀을 발전적으로 해체하고, 이를 서비스의 본질적 속성이라는 '근원적 태생'을 기준으로 재구성함으로써, 관련 규제 체제의 정비에 지침을 마련할 필요성을 의식하는 데서 시작하였다. 즉, 임기응변적인 자의적 구분을 탈피하여, 기술적 특성과 그로 인해 비롯되는 서비스의 본질적 자이를 복합적으로 고려한 융합서비스의 적정 규제 기준을 제시해보고자 하는 것이다.

• 대한전자공학회논문지TC
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• 제47권7호
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• pp.67-71
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• 2010

본 고에서는 방송통신융합 시스템 설계에 필요한 채널용량 분석을 다룬다. 이를 위하여 상관도를 갖는 Hoyt 페이딩 채널에서 dual-branch MRC 기법을 적용한 방송통신 융합시스템의 채널용량을 수식적으로 근사화하여 유도하고 분석한다. 부가데이터를 전송하기 위해서는 잡음 환경에 강인한 대역확산 워터마킹 기법을 적용할 수 있다. 수식적 결과로부터 부가데이터 전송시스템의 채널용량은 다양한 시스템 변수와 채널 변수에 의해 결정될 수 있음을 확인한다.

• Asia pacific journal of information systems
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• 제19권3호
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• pp.25-49
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• 2009

Advances in technology have resulted in the emergence of new information systems. The convergence of IT and manufacturing sectors has blurred the boundaries among industries. Also, such convergence has become established as a paradigm to build a new area. Especially the convergence of broadcasting and telecommunication, notably in the case of IPTV (Internet Protocol Television), is among the most salient examples of its kind in recent years as a major case of disruptive technology innovation. Despite its much fanfare, such convergence, however, has not fulfilled the expectation; it has not produced positive economic effects while negatively affecting the growth of IPIV. Stakeholders in and around IPIV including telecommunication companies, broadcasting corporations, and government bodies wish to gain control of IPTV under their wings. IPTV has drifted in the midst of conflicts among the stakeholders in and around IPTV, particularly telecommunication and broadcasting organizations in a broad sense. Our empirical research intends to deal with how audiences accept IPTV and how firms provide IPTV services to utilize their resources. Three research questions in this paper include, first, whether Technology Acceptance Model (TAM) can sufficiently explain the acceptance of IPTV as an information system. The second question concerns with empirically testing the playful aspect of IPTV to increase its audience acceptance. Last, but not least, this paper deals with how firms can efficiently and effectively allocate their limited resources to increase IPTV viewers. To answer those three main questions of our study, we collect data from 197 current subscribers of high speed internet service and/or cable/satellite television. Empirical results show that 'perceived usefulness (PU) $\rightarrow$ Intention to use' and 'perceived ease of use (PEU) $\rightarrow$ Intention to use' are significant. Also, 'perceived ease of use' is significantly related to 'perceived usefulness.' Perceived ease of handling IPTV without much effort can positively influence the perceived value of IPTV. In this regard, engineers and designers of IPTV should pay more attention to the user-friendly interface of IPTV. In addition, 'perceived playfulness (PP)' of IPTV is positively related to 'intention to use'. Flow, fun and entertainment have recently gained greater attention in the research concerned with information systems. Such attention is due to the changing features of information systems in recent years that combine the functional and leisure attributes. These results give practical implications to the design of IPTV that reflects not just leisure but also functional elements. This paper also investigates the relationship between 'perceived ease of use (PEU)' and 'perceived playfulness (PP).' PEU is positively related to pp. Audiences without fear can be attracted more easily to the user-friendly IPTV, thereby perceiving the fun and entertainment with ease. Practical implications from this finding are that, to attract more interest and involvement from the audience, IPTV needs to be designed with similar or even more user friendly interface. Of the factors related to 'intention to use', 'perceived usefulness (PU)' and 'perceived ease of use (PEU)' have greater impacts than 'perceived playfulness (PP).' Between PU and PEU, their impacts on 'intention to use' are not significantly different statistically. Managerial implications of this finding are that firms in preparation for the launch of IPTV service should prioritize the functions and interface of IPTV. This empirical paper also provides further insight into the ways in which firms can strategically allocate their limited resources so as to appeal to viewers, both current and potential, of IPTV.

• ETRI Journal
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• 제31권1호
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• pp.1-9
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• 2009

Frequency domain analysis is a fundamental procedure for understanding the characteristics of visual data. Several studies have been conducted with 2D videos, but analysis of stereoscopic 3D videos is rarely carried out. In this paper, we derive the Fourier transform of a simplified 3D video signal and analyze how a 3D video is influenced by disparity and motion in terms of temporal aliasing. It is already known that object motion affects temporal frequency characteristics of a time-varying image sequence. In our analysis, we show that a 3D video is influenced not only by motion but also by disparity. Based on this conclusion, we present a temporal anti-aliasing filter for a 3D video. Since the human process of depth perception mainly determines the quality of a reproduced 3D image, 2D image processing techniques are not directly applicable to 3D images. The analysis presented in this paper will be useful for reducing undesirable visual artifacts in 3D video as well as for assisting the development of relevant technologies.

• 대한안전경영과학회지
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• 제9권1호
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• pp.95-106
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• 2007

The development of information technology, which has brought the fusion of broadcasting and telecommunication, wire and wireless communication and voice and data, is developing new fusions like home network which is composed of IT, construction, and home appliances. This trend is considered to continue and to make other new fusions based on previous ones. In this study, we investigate the roles of RFID middleware by identifying the relationships between the new expected fusions and RFID.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2007년도 춘계학술대회
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• pp.387-397
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• 2007

The development of information technology, which has brought the fusion of broadcasting and telecommunication, wire and wireless communication and voice and data, is developing new fusions like home network which is composed of IT, construction, and home appliances. This trend is considered to continue and to make other new fusions based on previous ones. In this study, we investigate the roles of RFID middleware by identifying the relationships between the new expected fusions and RFID.