• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2007.06a
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• pp.109-112
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• 2007

Currently was Convergence time of broadcasting and communication with development of information communication technology and internet infra environment. The superhigh speed internet about under using there is IPTV where it provides the broadcasting contents with broadcasting and communication Convergence service. Digital broadcasting it makes various broadcasting in one stream and it transmits, and about under analyzing it uses Channel information which is included in broadcasting and broadcasting information from the terminal. But, IPTV transmits each broadcasting in multicast methods, therefore the possibility of knowing all Channel information and broadcasting information from the terminal it is not there is a problem point. This paper hereupon it searched IPTV broadcasting information from the terminal and in order to support a channel selection from IPTV broadcasting streams SI about under extracting SD&S XML documents it created and it transmits with the distant multicast the system which plan and it embodied.

• Journal of Korea Multimedia Society
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• v.13 no.7
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• pp.933-942
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• 2010

The convergence of the telecommunication industry through the combination of existing network technology and multimedia technology has brought along interactive data services in addition to the traditional broadcast services by providing direct connections between the users and the broadcasters. The interactive data service technology has developed a network which is able to fully support QoS and also a fast enough channel changing technology that is satisfactory to the user, are prerequisites for IPTV success, to provide satisfactory levels of service to exist users. However the current server-client system can't support all increasing needs of users. To overcome these limitations, P2P based IPTV service is currently under researched. Therefore, this thesis proposes a logical view based copy-ahead technique for P2P IPTV to improve the performance of IPTV system.

• Journal of Advanced Navigation Technology
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• v.16 no.3
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• pp.504-509
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• 2012

Multiple CAS (Conditional Access System) could be safely downloaded and implemented in IPTV environment. Domestic standard of iCAS (Interchangeable CAS) which is providing device compatibility and mobility, can only defines CAS replacement for protecting Real-Time Streaming broadcast. CAS, however has limitations in IPTV's two-way communication environment where it needs to fulfill contents protection requirements of various broadcasting service. In order to supplement the limit of CAS, DRM protection technology should be required. Contents for real time broadcasting service or real time VOD service could be protected by CAS technology whereas services such as PVR, download VOD service or downloaded contents sharing could be protected by DRM technology. Therefore, a flexible IPTV device service environment could be constructed by mutual protection of CAS and DRM. This essay is going to research on the method of applying DRM based on iCAS standard, as well as proposing a system configuration applied with iCAS/DRM in commercialization.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.13 no.11
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• pp.2323-2329
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• 2009

Recent IPTV services still remain as simple broadcasting services that cannot make the most of interactive features together with various content-associated data. So, IPTV providers are making efforts to break from monopolistic style, so as increasing the user's participation m service. However there is an interoperability problem because no common solution is employed across different providers. To solve this problem, there needs to be a framework for a framework for generating, sharing and distributing package contents. In this paper, we propose user-centered package contents application framework for interactive IPTV services. We also design a package content authoring and consuming system which plays core parts in the proposed framework.

• Korean journal of communication and information
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• v.31
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• pp.295-325
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• 2005

This study explored the conflict structure and resolution about IPTV, the typical convergence services. Which kinds of conflicts is taking plate in IPTV? How has it been managing by regulators? Researchers argues that IPTV dispute shows some different policy process comparing the past. It has double sided conflict structure- one is done by broadcasters and the others by regulators. When it was one sided conflict structure, it was easy to control the conflict issues. But now regulators become the subject to the conflict ground, it is not easy to control the conflict between business part. Rather the regulators show the strategy of avoiding conflict resolution - they do not really effort to resolve the conflict problems. but deepening and widening the conflict. In IPTV case, researchers found the avoiding conflict resolution strategy. And so-called 'iron coalition' between regulators and business part to preserve their areas and lights is likely to be loosen in IPTV policy environment.

• Convergence Security Journal
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• v.14 no.2
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• pp.11-16
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• 2014

Recently, request of IPTV was increase. It is a multi-screen service by used TV, PC, and smart-phones. Especially, IPTV and smart-phone linked multi-screen service are very growth by user's recommends. Now, IPTV have a security service partial and multi-screen service. But smart-phone and multi-screen service don't have security service. And authentication service for smart-phone and IPTV linked multi-screen service is don't.. Therefore, We propose that user authentication system for multi-screen service with IPTV and multi-device linked authentcation services. Our proposed system base on Kerberos, so proposal is easy and fast about user authentication. This have simple procedures and more secure services against of PKI. So, our system can support secure multi-screen services against various security threats in multi-screen environments.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.16 no.5
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• pp.21-26
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• 2016

With the increased desire of TV consumers for interactivity and personalization, IPTV has been rapidly spread in recent years. IPTV can provide a variety of services through hundreds of channels, but the explosion of TV channels makes users even more difficult to find their desired contents. In addition, the channel zapping delay of IPTV is serious due to the limited network bandwidth. To resolve these problems, this paper distinguishes hot and cold channels by exploiting the real-time viewing rate as well as each user's viewing history, and then, maintains hot channels in the hot list, which is searched first during channel navigation and also prefetched to support the preview of channels. Experimental results show that the proposed scheme improves the IPTV channel seek time significantly compared to existing channel seeking interfaces.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.10a
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• pp.516-519
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• 2008

Currently broadcasting and telecommunication has integrated, And IPTV Service has appeared who called TPS(Triple Play Service) which integrated with broadcasting, telecommunication and Phone Service. IPTV provide broadcasting service and VOD(Video on Demand) service, and it must be satisfied digital content security. For this condition, IPTV Forum working on standardization of interface for digital content security. The Security solution for broadcasting and VOD are CAS(Conditional Access System) and DRM(Digital Rights Management). But these solutions manufactured by many vendors, so there is no inter-operablity. And after finished standardization of interface for CAS and DRM system, the problem of inter-operability with them will be issued. For this reason, Rights management system which possible to operate independently with platform is necessary. In this paper, To protect multimedia digital content, we designed and implemented Conditional Access Management System.

• Informatization Policy
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• v.22 no.2
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• pp.19-34
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• 2015

Due to rapid convergence trends in the digital pay TV market, differentiation among the competing medias decreases and substitutability is increasing. The current study aims to explain the effect of service substitutability among competing media on the size of domestic digital pay TV subscribers. For the analysis, the Lotka-Volterra model, an ecological competitive diffusion model, was used to obtain the basic model for a simulation study. A simulation was performed by adjusting independent variables of substitutability to estimate the size of subscriber for particular media. The relationship between the digital cable TV and the IPTV is identified as a predator-prey relationship and the digital cable TV is found to be superior to the IPTV. The simulation results showed that the increase of convergence and substitutability result in the decrease of the entire media market. Especially, the IPTV is estimated to face the greatest loss in this context.

• The Journal of Society for e-Business Studies
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• v.16 no.4
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• pp.335-357
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• 2011

In this paper, we report the empirical study results theorizing IPTV user's loyalty formation process. Considering the convergent characteristics ofinnovative media and telecommunication, we employed innovation adoption and diffusion as our theoretical framework for research model development. As the purpose of this research includes verification of detail attributes of IPTV service, we formulated structural model which treats relative advantage as the second order factor, of which incorporates the seven detail attributes as the first order factors. Then, using the data collected from 250 Korean IPTV subscribers, the model is validated and relevant attributes are identified through PLS analysis. The results provide insights for future research on the adoption and diffusion of new digital convergent high-tech services.