• 한국정보디스플레이학회:학술대회논문집
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• 2002.08a
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• pp.347-350
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• 2002

Transposed scan is an innovation that paves the road to ultra-slim CRTs with deflection angles up to 135$^{\circ}C$ We discuss the integration of video transposition with the other video processing functions in the television set. An in-place transposition algorithm which minimizes the amount of frame memory is proposed as a low-cost solution for transposed scan conversion. The difference in visual perception of transposed scan and normal scan depends on the frame rate and the line density of the video format. We found that for high frame rates and high line densities, no difference was perceived for both scan modes.

• Electronics and Telecommunications Trends
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• v.21 no.4 s.100
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• pp.22-33
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• 2006

방송의 디지털 전환은 기존의 아날로그 방송에 비해 획기적으로 새로운 HD 화질과 3D입체음향의 방송 서비스가 가능하게 하였을 뿐만 아니라, 아날로그 방송에서는 불가능하였던 이동멀티미디어 방송이라는 새로운 서비스가 출현하게 하였다. 이동멀티미디어방송은 TV를 집 밖으로 이끌어내어 차를 타고 갈 때, 걸어갈 때 및 자리를 옮겨 다닐때도 휴대단말기를 통해서 언제 어디서나 원하는 TV 시청 및 음악 청취를 할 수 있는방송 서비스를 실현함으로써, 방송과 통신의 컨버전스를 유도하는 역할 및 나아가서 유비쿼터스 방송망 구성에 적용성을 제시하는 등 우리의 삶에 새로운 시대를 열어가고 있다. 현재 지상파 이동멀티미디어 방송 시스템은 세계적으로 매우 활발하게 연구 및 서비스가 추진중이며, 대표적인 예로는 크게 World DAB를 중심으로 한 T-DMB, DVB를 중심으로 한 DVB-H 그리고 Qualcomm을 중심으로 한 Media FLO 등이 있다. 본고에서는 지상파 이동멀티미디어 방송시스템에 대한 소개와 각 시스템의 표준화 및 서비스 추진 현황에 대해 소개한다.

• Electronics and Telecommunications Trends
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• v.24 no.1
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• pp.75-89
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• 2009

세계 주요 나라에서 HDTV 방송이 서비스되고 있으며, 현재는 아날로그와 디지털 방송이 동시 송출되고 있으나, 2010년대 초기에 디지털 전환을 완료할 예정이다. 방송서비스는 기술개발, 표준 제정 및 법제 정비 등 많은 개발 및 준비기간을 필요로 하므로, 세계 주요 국가들은 HDTV 이후의 방송 서비스를 위한 준비 작업들을 진행하고 있다. HDTV 이후의 차세대 방송을 UHDTV라고 하며, 가정에서 70 mm 영화보다 뛰어난 화질(비디오 해상도 $7680{\times}4320$, HD 화면 16배 크기에 해당)과 다채널(${\sim}22.2ch$) 음질로 극장급의 초고품질 서비스를 제공하여 소비자의 품질 욕구를 만족시킬 수 있는 TV를 목표로 한다. 본 고에서는 UHDTV 서비스에 필요한 관련 기술 동향과 표준화 동향 및 기술 개발시 선행적으로 필요로 하는 특허 동향에 대해서 설명한다.

• Journal of the Optical Society of Korea
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• v.19 no.2
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• pp.159-164
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• 2015

In the injection-molded light guide plate the replication quality, i.e. the reproduction accuracy, of micro-patterns should be high and uniform over the entire surface area. However technical difficulty in meeting the necessary replication quality arises as the plate size becomes large for TV applications. We propose a simulation technique to optimize the distribution of micro-patterns on a 55-inch injection molded light guide plate considering non-ideal replication quality of micro-patterns. The luminance uniformity could be improved by more than 16% by optimizing the pattern distribution in spite of the same replication quality.

• Proceedings of the KIEE Conference
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• 1996.07b
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• pp.680-682
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• 1996

Korea Distribution Automation System(KODAS) has been designed and implemented for feeder automation using the paircable as communication media. And we bave been developed the telemetering system using the low voltage line. Kepco have been constructed approximately 60% of the Cable TV(CATV) networks in large city in Korea since 1995, so we have been researching the feeder automation based on CATV networks also. We will contruct the system using its in the area with of cable-TV networks and paircable line in the other area for communication media in future.

• Annual Conference of KIPS
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• 2009.04a
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• pp.609-612
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• 2009

IPTV와 같은 다양한 멀티미디어 콘텐츠를 다루는 멀티미디어 단말기의 경우에 다량의 콘텐츠 목록으로부터 원하는 내용을 쉽게 선택할 수 있는 편리한 인터페이스가 요구된다. 본 논문에서는 본격 상용서비스가 시작된 IPTV 및 멀티미디어 단말기의 사용자 인터페이스의 현황을 분석하고, 인터페이스의 진화 방향에 대한 특성을 제시한다. 이를 위하여, 국내외 셋탑박스 기반 IPTV 및 멀티미디어 단말기의 인터페이스 사례를 수집하여, 화면의 특성에 따라 화면의 구성 형태 및 인터랙션의 형태를 서비스 시나리오에 근거하여 분류하였다. 셋탑 박스 기반의 IPTV 인터페이스는 I터치인터랙션의 기능을 지원할 수 있는 차세대 TV 리모콘의 개발과 보급이 전제가 된다면, 기존의 멀티미디어 단말기가 수용하고 있는 다양한 그래픽적 터치기반의 인터페이스 형태를 접목하여 차세대 TV 인터페이스로 발전할 수 있을 것으로 전망된다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.11 no.7
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• pp.1260-1266
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• 2007

The information and communication technology under developing from was time of broadcast and communication Convergence. There is iCOD with representative service of broadcast and communication Convergence. This the superhigh speed Internet about under using is the service which provides information service, the video contents and broadcasting and others with TV. But this service when it searches broadcasting information of different Channel, again must analyze the stream of broadcasting there is a problem point. This thesis hereupon iCOD broadcasting services it searched efficiently from the terminal and in order the fact that it selects from iCOD broadcasting streams SI information about under extracting SD&S base iPG XML documents it created and it transmits with the distant mote cast the method which and it planned it embodied.

• Journal of Broadcast Engineering
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• v.15 no.6
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• pp.757-767
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• 2010

In this paper, we have studied the color compensation method for 3D that enables 3D color presentation similar to 2D. The color compensation method uses the difference of color presentation in 2D and 3D mode. First, the RGB I/O relationship curve was derived in 2D and 3D mode based on the input RGB color bar images. The relationship was modeled in modified power-law forms. Based on the modeling information, we generated color mapping tables, which can be used for compensating the difference of colors. The proposed color mapping block can be added at the output block of a 3DTV system, where the 2D content can be bypassed but the 3D content RGB data can be processed using the color mapping table. The experimental results show that the proposed method improves color presentation of a 3DTV system using a proper color compensation based on 2D presentation.

• Journal of Advanced Navigation Technology
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• v.13 no.1
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• pp.54-61
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• 2009

In this paper, Switching to digital TV broadcasting and mobile operators license expiration period of the frequency, time and 700MHz, 800MHz and 900MHz frequency band plan for the redistribution is actively being discussed. Redistribution policy direction of these frequency 800MHz (bandwidth 10MHz) integrated command frequency for wireless networks(i.e TETRA) is expected to be considered a redistribution. These Integrated Wireless Network Infrastructure configurations at the time and data communication capabilities of the system unwilling TETRA Release 2 standard for the system is presented. This system is analyzed that Release 1 of the existing system takes up more than 6 times the increase of frequency bands. Therefore, integration of the frequency band assigned to the command of a wireless network with the introduction of advanced systems will not be able to do. In this paper to the digital TV transition, and the policy based on analysis of trends in the 700MHz band for the integration of wireless networks, provides policy direction for the allocation plan.

• Journal of Digital Contents Society
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• v.17 no.4
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• pp.279-286
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• 2016

Recently, the cosmetics industry considers male customers as a consumptive, active customer base who also have purchasing power with their stronger desire for their personal image enhancement. Male-preferred image brands have entered the era of unlimited competition through social media, thus increasing the acquisition of male beauty. Therefore, the information for designing favorable image strategies should be examined. This paper examines male awareness, determined by the degree of appearance management based on four categories (i.e., hair and skin care, makeup, foot and hand care, and plastic surgery). Based on the research, the paper proposes a data service to address the spatial and temporal separation problem between TV CF (the major media for recognizing information) and online $caf{\acute{e}}$/blog the major media for obtaining detailed information.