• Title, Summary, Keyword: Terrestrial Broadcasting

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A Longitudinal Time Series Study on the Viewing Behavior of Digital Media VOD Service Focused on Terrestrial VOD of IPTV for 5 years (디지털미디어 VOD 서비스 시청행태의 종단 시계열추세 연구 - 5년간 지상파VOD의 실적을 중심으로)

  • Lee, Sang-Ho
    • Journal of the Korea Convergence Society
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    • v.8 no.9
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    • pp.277-283
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    • 2017
  • This paper deals with a longitudinal time series study on the viewing behavior of digital media service. After holdback of terrestrial broadcasting VOD service was extended in 2013, viewers' terrestrial broadcasting VOD viewing went down sharply. Researcher assumed that there was driven by watching alternative products such as movies, kids, etc. as the cause of the decline of the terrestrial broadcasting VOD viewing. In addition, researcher assumed that the decline of terrestrial broadcasting VOD viewing had an influence on the viewing rate of the terrestrial real-time broadcasting, and confirmed the cause of the decreasing of the terrestrial real-time broadcasting viewing rate. In order for terrestrial broadcasters to retrieve real-time broadcasting and VOD viewing, it is necessary to shorten the VOD holdback and reacquire viewers away from terrestrial broadcasting.

Integral TS Demultiplexer of Memory Sharing based DVB-T/T-DMB Receiver (메모리공유 기반의 DVB-T/T-DMB 통합 TS의 역다중화기)

  • Kwon, Ki-Won;Paik, Jong-Ho;Kang, Min-Goo
    • The Journal of The Institute of Internet, Broadcasting and Communication
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    • v.10 no.6
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    • pp.17-22
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    • 2010
  • In this paper, integral TS(Transport Stream) demultiplexer of a multi-modal receiver is proposed according to the multiple standards of European terrestrial digital broadcasting DVB-T(Digital Video Broadcasting Terrestrial), and mobile terrestrial digital broadcasting T-DMB(Terrestrial Digital Multimedia Broadcasting). This USB based integral receiver could recover the multi-modal broadcasting audios by memory sharing technique which was utilized to decrease the load by the control of streaming multi-modal broadcasting. As a result of performance analysis for a proposed integral TS demultiplexer, the CPU occupational efficiency of windows based integral demulitiplexing is improved compared with DVB-T, and T-DMB respectively.

Strategies of Local Terrestrial Broadcasting Companies since the Introduction of Comprehensive Programming Channels (종합편성채널 도입에 따른 지역 지상파방송 대응 전략)

  • Jeong, Jong-Geon
    • The Journal of the Korea Contents Association
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    • v.11 no.7
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    • pp.192-209
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    • 2011
  • This study looked into coping strategies of local terrestrial broadcasting companies in the media market, since the introduction of comprehensive programming channels was confirmed. Local terrestrial broadcasting companies vulnerable to market competitiveness are driven more out to the difficulty of survival in a limited advertising market with the advent of comprehensive programming channel. and Local terrestrial broadcasting receive discriminative application than comprehensive programming channel. They have reverse discrimination in must-carry, broadcasting area, programming regulation, advertisement regulation, broadcasting development fund. Hence, Local terrestrial broadcasting needs diverse countermeasures at difficult media circumstances. Above all, Competitive content reinforcement is desperately needed. That's why content distribution structure needs diversification. And, It is necessary for local terrestrial broadcasting companies to diversify the content distribution system. As a way to expand distribution structure of local broadcasting, the introduction of local programming regulations for total amount will be highlighted in the nationwide network program. The mandatory policy that programs produced by local terrestrial broadcasting companies will be broadcast regularly in prime time through a nationwide network is an example. In addition to developing high content independently, 2nd Multiple channels of distribution is needed. It has to be supplied to various platforms including local broadcasting, SO and etc. In addition, it is necessary to activate regional co-production program between local terrestrial broadcasting companies and regions. Time rate between central stations and local terrestrial broadcasting companies must be distributed practically. And also, local terrestrial broadcasting companies in addition to ad revenue model to themselves and their own businesses by expanding the sponsorship to strengthen the competitiveness will have to nurture self-sustaining. Moreover they must have enlarge economy of scale through widen of broadcasting area.

Effective Multiplexing Method for Conditional Access System in Terrestrial DMB

  • Lee, Yong-Hoon;Lee, Gwang-Soon;Lee, Jin-Hwan;Ahn, Chung-Hyun;Lee, Soo-In;Kim, Nam
    • ETRI Journal
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    • v.30 no.6
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    • pp.859-861
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    • 2008
  • This letter proposes a conditional access system (CAS) suitable for use in terrestrial digital multimedia broadcasting (T-DMB), based on an effective multiplexing method to provide encrypted T-DMB services. Specifically, the proposed multiplexing method for a CAS is designed to reduce the additional bit rate while assuring easy access to the designated encrypted services. Finally, the performance of the implemented CAS is confirmed through implementation and a broadcasting experiment under various service environments.

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Design of PSIP converter for data broadcasting service in the interoperable network of terrestrial and cable

  • Choi Ji Hoon;Lee Yong Ju;Park Min Sik;Choi Jin Soo;Hong Jin Woo
    • Proceedings of the IEEK Conference
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    • pp.562-566
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    • 2004
  • In this paper, we propose a method for constructing terrestrial/cable PSIP converting system, so-called a PSIP converter, which is converting terrestrial PSIP into cable PSIP for a data broadcasting service in the interoperable network of terrestrial and cable, and define an interface between the PSIP converter and the OOB SI generator by using PMCP messages compliant to ATSC T3/S1. The exiting PSIP converter just converts terrestrial PSIP into cable PSIP compliant to ATSC and OCAP standard and transmits by a MPEG-2 TS format. That is to say, it is not for the digital data broadcasting but for the digital broadcasting. Say in other word, the proposed PSIP converter is designed to convert and transmit PSIP including DET information which is necessary data event information for data broadcasting service. In addition, the PSIP converter can support various types of PSIP information to the OOB SI generator by using PMCP messages defined by a hierarchical structure as per each channel, audio/video event, data event and so on.

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Operation strategy of terrestrial broadcasting system on channel image and N-screen service (지상파 방송사의 채널 이미지와 N-스크린 서비스 운영 전략)

  • Kim, Hyeong-Jun;Ha, Kyu Soo
    • Journal of Digital Convergence
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    • v.11 no.6
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    • pp.43-55
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    • 2013
  • This study was to examine the operation strategy of terrestrial broadcasting system on channel image and N-screen service. Nowadays, terrestrial broadcasting system provides video streaming service based on internet. In other words, terrestrial broadcasting system provides N-screen service through TV-PC-Smart phone-Tablet PC. But it is different for terrestrial broadcasting system to analysis the choice criterion of program. Only, channel image of terrestrial broadcasting system expanded into N-screen. Finally, channel image of terrestrial broadcasting system is the competition strategy. It is necessary for terrestrial broadcasting system to prepare the strategy of program choice for users, original contents, new platform and service in connection with N-screen.

Interference-Limited Dynamic Resource Management for an Integrated Satellite/Terrestrial System

  • Park, Unhee;Kim, Hee Wook;Oh, Dae Sub;Ku, Bon-Jun
    • ETRI Journal
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    • v.36 no.4
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    • pp.519-527
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    • 2014
  • An integrated multi-beam satellite and multi-cell terrestrial system is an attractive means for highly efficient communication due to the fact that the two components (satellite and terrestrial) make the most of each other's resources. In this paper, a terrestrial component reuses a satellite's resources under the control of the satellite's network management system. This allows the resource allocation for the satellite and terrestrial components to be coordinated to optimize spectral efficiency and increase overall system capacity. In such a system, the satellite resources reused in the terrestrial component may bring about severe interference, which is one of the main factors affecting system capacity. Under this consideration, the objective of this paper is to achieve an optimized resource allocation in both components in such a way as to minimize any resulting inter-component interference. The objective of the proposed scheme is to mitigate this inter-component interference by optimizing the total transmission power - the result of which can lead to an increase in capacity. The simulation results in this paper illustrate that the proposed scheme affords a more energy-efficient system to be implemented, compared to a conventional power management scheme, by allocating the bandwidth uniformly regardless of the amount of interference or traffic demand.

Terrestrial Stereoscopic Broadcasting System Technology based on NRT (NRT 기반 연동형 지상파 3D 방송 서비스 기술)

  • Park, Jong-Hwan;Kim, Kyu-Heon;Lee, Jang-Won;Yim, Hyun-Jeong;Yun, Kug-Jin;Cheong, Won-Sik;Hur, Nam-Ho
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.48 no.6
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    • pp.35-47
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    • 2011
  • A present experimental broadcasting is service compatible to delivery left view and right view of a dual stream for backward compatible with 2D device. It has a limitation of quality for a transmission of dual stream in terrestrial bandwidth 19 Mbps. This paper proposes adjunct terrestrial-3D broadcasting system which can provide a stable quality beyond a limitation of quality from fixed bandwidth. It proposes the system that composes a high quality stereoscopic video through synchronizing Real time broadcasting and Non Real Time broadcasting Regardless of the terrestrial bandwidth. So this paper tries to analyze each technique of Real-Time broadcasting and NRT broadcasting, and verify this proposal through the technique of an algorithm that we can implement NRT adjunct high quality 3DTV system and the experiments.

Transmission of Traffic Information Using a Terrestrial Digital Multimedia Broadcasting System

  • Cho, Sam-Mo;Kim, Geon;Jeong, Young-Ho;Ahn, Chung-Hyun;Lee, Soo-In;Lee, Hyuck-Jae
    • ETRI Journal
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    • v.28 no.3
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    • pp.364-366
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    • 2006
  • This letter introduces an efficient transmission of traffic information through a terrestrial digital multimedia broadcasting system, which is a multimedia and mobility empowered option of the European digital audio broadcasting system. By adapting Korean characteristic traffic information into the transport protocol expert group messages in the traffic information delivery, a highly efficient traffic information system was implemented and tested in Korea.

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A Study on the Viewing Rate Trends of Digital Media Service Special Reference to Terrestrial Real Time Broadcasting of IPTV (IPTV 지상파 실시간방송 채널의 시청률 추세와 영향 요인에 관한 연구)

  • Lee, Sang-Ho
    • Journal of Digital Convergence
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    • v.15 no.9
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    • pp.471-477
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    • 2017
  • This paper deals with the viewing rate trends of digital media service special reference to terrestrial real time broadcasting of IPTV. In a few years, TV viewership of young people is decreasing, the audience viewing rate of the terrestrial broadcasting which is the representative of the media decreases, and the change of the broadcasting industry is progressing. Especially after the terrestrial broadcaster 's VOD holdback was extended, the viewer' s movement on the competitive channel & mobile media was rapidly progressing. Researcher assumed that the viewing rate of the terrestrial real-time broadcasting has influenced the comprehensive channel, CJ E&M subsidiary channels. As a result, researcher verified using statistical methodological time series analysis and regression analysis. Based on these results, researcher expects media players to prepare policies for viewers' satisfaction and symbiotic growth of markets.