• 디지털융복합연구
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• 제6권4호
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• pp.73-81
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• 2008

Market penetration of media capital and with domestic broadcasting and communication fusion affect from the contents competitive situation which is general, the digital conversion of ground group broadcasting which follows in like this change tried to point out the hereafter direction of broadcasting contents industry with Korean-American FTA compromises. Further with role of the program heightening of competitiveness plan for the ground group digital contents activation of local broadcasting and loca broadcasting accomplishes the funeral of succession development and area public opinion integration of politics, economy and culture of the community and being understood for a harmony, and proposed a politic alternative in the Broadcast Communications Commission which starts newly and Local Broadcasting Developmental Commission.

• ETRI Journal
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• 제36권5호
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• pp.791-798
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• 2014

As a new hybrid broadcasting service, augmented broadcasting shows enhanced broadcasting content on a large TV screen, while augmented reality (AR) on a mobile device augments additional graphical content onto an input image from the device's own camera to provide useful and convenient information for users. A one-sided broadcasting service using AR has already been attempted in virtual advertisements during sport broadcasts. However, because its augmentation is preprocessed before the video image is transmitted, the viewer at home may have no influence on this formation; and no interaction for the user is possible unless the viewer has a direct connection to the content provider. Augmented broadcasting technology enables viewers to watch mixed broadcasting content only when they want such service and to watch original broadcasting content when they do not. To realize an augmented broadcasting service, the most important issue is to resolve the hybrid content synchronization over heterogeneous broadcast and broadband networks. This paper proposes a novel hybrid content synchronization scheme for an augmented broadcasting service and presents its implementation and results in a terrestrial DTV environment.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 2006년도 학술대회
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• pp.257-260
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• 2006

In Video streaming environment, we must consider terminal and network characteristics, such as display resolution, frame rate, computational resource, network bandwidth, etc. The JVT (Joint Video Team) by ISO/IEC MPEG and ITU-TVCEG is currently standardizing Scalable Video Coding (SVC). This can represent video bitstreams in different sealable layers for flexible adaptation to terminal and network characteristics. This characteristic is very useful in video streaming applications. One fully scalable video can be extracted with specific target spatial resolution, temporal frame rate and quality level to match the requirements of terminals and networks. Besides, the extraction process is fast and consumes little computational resource, so it is possible to extract the partial video bitstream online to accommodate with changing network conditions etc. With all the advantages of SVC, we design and implement a network-adaptive SVC streaming system with an SVC extractor and a streamer to extract appropriate amounts of bitstreams to meet the required target bitrates and spatial resolutions. The proposed SVC extraction is designed to allow for flexible switching from layer to layer in SVC bitstreams online to cope with the change in network bandwidth. The extraction is made in every GOP unit. We present the implementation of our SVC streaming system with experimental results.

• 한국언론정보학보
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• 제46권
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• pp.590-626
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• 2009

방송에서 공공성이 중요한 이유는 제반 사회에 존재하는 다원적 가치와 그것을 유통시키는 전파의 유한 희소성 때문이다. 방송 전파는 제한되어 있지만 다양한 사회적 가치는 자유롭게 유통되어야 한다. 이것이 방송 공공성의 핵심이다. 방송 공공성의 전제조건은 방송 규제기구와 방송사업자의 자율과 독립이다. 이 연구에서는 방송의 정치적 독립성 문제를 집중 검토하였다. 최근 MBC 피디 체포와 YTN 노조위원장 구속 사태는 아직도 한국사회에서 방송의 정치적 독립성이 심각한 문제임을 보여준다. 지난 2001년 출범한 통합방송위는 사회조합주의 방송 규제기구였다. 2008년 출범한 방송통신위는 국가기구에 가깝다. 공영방송과 방송통신위의 독립성을 강화하는 것이 현 단계 한국 민주주의의 핵심 과제다. 이 논문에서는 한국 방송에 대한 시민의 인식을 확인해 보기 위해 여론 조사를 실시했다. 결과를 보면 일반인과 전문가 집단 모두 현재 방송 독립성이 심각하게 침해받고 있다고 답했다. 본 논문에서는 수용자에 대한 조사 결과를 바탕으로 향후 방송의 독립성 유지를 위한 핵심 정책방향으로 사회조합주의 정책의 재구성 및 규제기구와 공영방송의 거버넌스 재편방향을 제안했다.

• 한국멀티미디어학회논문지
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• 제8권6호
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• pp.814-826
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• 2005

The user-centric broadcasting environment includes the agent system and personalized broadcasting services for user-adaptive TV watching. In this paper, we propose broadcasting environment consisting of personalized broadcasting services and a multi-agent broadcasting system for the services. The proposed system employs the intelligent agent technology of the Foundation for Intelligent Physical Agents (FIPA) as well as metadata technology of MPEG-7 and TV-Anytime Forum (TVAF). To verify the usefulness of the proposed environment, we implemented a test-bed and demonstrated the proposed agent system with three services including intelligent user-information management service, information mobility service, and content retrieval service.

• 한국통신학회논문지
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• 제36권6B호
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• pp.631-641
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• 2011

Digital Multimedia Broadcasting (DMB) and Internet Protocol Television (IPTV) are now in commercial service, tearing down the traditional boundaries between the telecommunications and broadcasting sectors. These latest developments also hold important implications for research projects in related areas. Both telecommunications and broadcasting being fields with a strong service orientation, market demand should be the primary consideration when selecting research and development (R&D) projects in these areas. This study presents a process for selecting converged telecommunications-broadcasting technology development projects from a demand-oriented perspective, using criteria that are based on projected future demand characteristics. Aimed at increasing the efficiency of the R&D project selection process in telecommunications and broadcasting convergence, this study can point out new directions in R&D management in this field.

• ETRI Journal
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• 제29권1호
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• pp.99-102
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• 2007

The channel level difference (CLD) is a main parameter in the reference model 0 (RM0) for MPEG Surround. Nevertheless, the CLD quantization method in the RM0 has problems such as the lack of theoretical background and inappropriate quantization levels. In this letter, a new CLD quantization method is proposed based on the virtual source location information which has strength in the quantization process. From experimental results, it is confirmed that the proposed scheme greatly reduces the quantization distortions measured in dB and degrees without any additional complexity.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 하계종합학술대회 논문집(1)
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• pp.291-294
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• 2002

This paper proposed interface test method for performance verification of communication and broadcasting satellite between communication and broadcasting satellite payload and EGSE(Electrical Ground Support Equipment). We need ground support equipment for test them to performance verification and conform interface function of payload. This paper define tile telemetry transfer method for control payload using GSE(Ground Support Equipment) and receive telemetry data collected from GSE through bus simulator

• 한국통신학회논문지
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• 제31권1B호
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• pp.39-45
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• 2006

인터넷을 기반망으로 하는 무선 종단망에서 방송용 또는 멀티캐스팅용 IP 주소를 이용한 기존의 무선 인터넷 지역방송 기술의 단점이 본 논문에서 보완되었다. 즉, 수신기가 방송을 요청하는 방법과 멀티캐스팅과 브로드캐스팅 방식을 결합시키거나, 수신기와 기지국의 하위 계층에서 방송 데이터 필터링을 수행하여, 통신망과 방송 서버, 기지국, 수신기의 부하가 대폭 감소되었다. 본 논문에서 제안된 기술은 일반적인 방송 서비스뿐만 아니라 LBS(Location Based Service)나 Telematics 서비스에 최적이다.

• Journal of Astronomy and Space Sciences
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• 제17권2호
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• pp.249-256
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• 2000

It has been developed to calculate fuel budget for a geostationary communication and broadcasting satellite. It is quite essential that the pre-launch fuel budget estimation must account for the deterministic transfer and drift orbit maneuver requirements. After on-station, the calculation of satellite lifetime should be based on the estimation of remaining fuel and assessment of actual performance. These estimations step from the proper algorithms to produce the prediction of satellite lifetime. This paper concentrates on the fuel estimation method that was studied for calculation of the propellant budget by using the given algorithms. Applications of this method are discussed for a communication and broadcasting satellite.