• Electronics and Telecommunications Trends
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• v.28 no.6
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• pp.150-155
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• 2013

현재 3DTV 방송은 UHDTV(Ultra High Definition Television) 방송과 더불어 차세대 방송기술로써 인식되고 있으며, 한국, 미국, 유럽 등 선진국을 중심으로 다양한 방식의 3DTV 실험방송 및 상용서비스가 활발히 진행되고 있다. 표준화 측면에서는 프레임호환 3DTV에서 서비스호환 3DTV 서비스로 발전되고 있으며, 방송망 및 IP망을 결합한 하이브리드 3DTV 서비스에 대한 표준화가 진행 중에 있다. 이러한 전 세계 표준화 움직임을 토대로, 본고에서는 ITU-T, SCTE, DVB 및 TTA 등 케이블디지털 방송 매체 기반의 3DTV 방송서비스에 대한 국내외 표준화 현황에 대해 살펴본다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.9 no.6
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• pp.211-217
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• 2009

In this paper, we discussed convergence in terrestrial broadcasting and wireless communication with respect to technology and service models. Especially, retrieval and relocation of TV broadcast spectrum after upcoming D-TV transition is investigated so that the benefit for broadcasting and communication industries as well as spectral efficiency to be maximized. Also, the role of TV broadcast spectrum as a utility for convergence of two industries is investigated based on open spectrum, open platform and open application initiatives.

• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.9-11
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• 2008

In this paper, we describe a 1/4 rate robust modulation algorithm for Enhanced-xVSB system which is fully backward compatible with ATSC 8-VSB standard. Laboratory test results of proposed Enhanced-xVSB 1/4 rate mode is shown a significantly improved reception performance under multipath as well as AWGN channel. We suggest an Enhanced-xVSB terrestrial broadcasting system for in-band Pedestrian/Portable TV broadcasting service.

• ETRI Journal
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• v.26 no.2
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• pp.92-100
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• 2004

In this paper, we propose an efficient method to broadcast digital television signals using single frequency networks (SFNs) within the Advanced Television Systems Committee (ATSC) transmission systems. In implementing the SFNs of an 8-vestigial side band (8-VSB) Digital Television (DTV) system, the ambiguity problem of the trellis coder is unavoidable in a conventional ATSC transmission system. We propose a memory initialization of the trellis coder to resolve this ambiguity problem. Since the proposed scheme to synchronize multiple transmitters minimizes the changes from the conventional ATSC system, the hardware complexity for these changes is very low. Our simulation results show that the proposed scheme makes a less than 0.1 dB degradation at the threshold of visibility with a bit error rate of $3{\times}10^{-6}$ in the additive white Gaussian noise (AWGN) channel. It is possible to reduce the performance degradation by increasing the initialization period of the proposed scheme.

• Journal of Broadcast Engineering
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• v.5 no.2
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• pp.140-158
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• 2000

Testing of terrestrial Digital TV(DTV) broadcasting in Seoul and Kyung-gi region was started in May 1999. Tasks of the committee for DTV technical evaluation were to implement test procedures for DTV transmitting systems, to analyze various technical aspects of DTV and to complete a field test. This paper summarizes the field test results. The field test vehicle was designed and constructed to measure field data. We chose over 200 test points to verify the receiving status of DTV signals and compared them with the analog TV signals at the same site. The results showed stable and satisfactory reception of DTV signals over 70%. The system performance index was over 80%.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2011.11a
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• pp.4-5
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• 2011

본 논문에서는 비대칭적 화질을 갖는 스테레오 3DTV 시스템에서 좌우 두 영상의 화질차이가 합성한 스테레오 3D 영상의 주관적 화질을 떨어뜨릴 정도로 현저한 경우, 이 화질 차이를 보상하기 위하여 조건부 대체를 포함한 양안시차 맵을 이용하는 방법을 제안한다. PSNR값 비교를 통하여 화질 개선 정도를 보았고 0.37~18dB 정도의 PSNR 개선을 확인하였다.

• The Journal of the Korea Contents Association
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• v.12 no.4
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• pp.119-132
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• 2012

This study is to consider the major policy issues related to 3DTV in terms of the platform projects, not the terminal and equipment manufacture. It reviews what problems the 3D policy in terms of the platform projects has posed so far, and discusses the issues that may appear when the 3D TV is commercialized in the broadcasting market. The major issues dealt in the study include the frequency policy of the terrestrial platform, the additional services activation of the pay platform players, the retransmission policy of terrestrial broadcasting, and the advertising market policy.

• ETRI Journal
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• v.29 no.3
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• pp.393-395
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• 2007

Analytic modeling and computational simulation for the protection of DTV from cognitive radio interference are performed. Protection is achieved by using the protection ratio, which is derived through system modeling and its analysis. On the frequency coordination between digital TV and cognitive radio, an analysis in a co-channel environment, in a rural area in Korea, is performed.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2006.11a
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• pp.187-190
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• 2006

In this paper, we describe a new 1/4 rate robust modulation techniques for Enhanced-x VSB system which is fully backward compatible with ATSC 8-VSB standard. 1/4 rate mode Enhanced-xVSB system provides broadcasters with a wide choice of trade-offs of data rate vs amount of robustness of enhanced data for pedestrian/mobile services. Lab test results of proposed Enhanced-xVSB 1/4 rate mode robust stream are a significantly improved multipath as well as AWGN reception performance for Enhanced-xVSB receiver. We suggest an Enhanced-xVSB terrestrial broadcasting system for ATSC HDTV and pedestrian/portable TV simultaneous broadcasting service providing.

• Electronics and Telecommunications Trends
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• v.26 no.3
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• pp.105-110
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• 2011

2010년 3DTV는 핫 이슈로 떠오르면서 관련업계에서는 여세를 몰아 제품 개발이나 마케팅에 총력을 기울이고 있으며 3DTV 방송에서도 이를 접목하기 위하여 다양한 서비스 및 응용 연구가 활발하게 진행되고 있다. 이를 반영하듯, 케이블 및 위성 매체기반의 상용 3DTV 방송서비스를 점차 지상파에도 적용하기 위하여 지역 방송 표준단체는 타 표준단체들과의 공조를 통하여 지상파 3DTV 방송서비스 표준화를 진행 중에 있다. 본 고에서는 이러한 세계적 표준화 흐름 속에 북미 지상파 및 케이블 표준단체인 ATSC, SCTE 표준화 현황 및 국내 TTA를 중심으로 추진 중인 3DTV 방송 표준화 현황을 살펴본다.