• Proceedings of the IEEK Conference
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• 1998.10a
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• pp.7-10
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• 1998

In implementing real time video on demand(VOD), the increase of user on internet causes a network traffic congestion. In this paper, we programmed a CGI able to login in VOD home for limiting the number of user in solving the problem, and also applied and adaptive multimedia synchronization technique for controlling video and audio data in a network. In addition, a real time multimedia player was designed and implemented in a personal computer operating at Window95/98/NT.

• Proceedings of the Korea Multimedia Society Conference
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• 2002.11b
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• pp.429-432
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• 2002

본 논문은 국내의 지상파 디지털 방송 표준인 ATSC표준을 이용하여 디지털 방송 시 제공되는 PSIP (ATSC A/65) 정보를 기반으로 한 전자프로그램가이드를 구현하는 시스템을 제안한다. 이 시스템은 PSIP 파서를 이용하여 방송국으로부터 수신된 MPEG-2 트랜스포트 스트림에서 PSIP 정보를 파싱하고, 이를 토대로 전자프로그램가이드에 필요한 정보를 만들어 DTV에서 보여주게 된다. 일반적으로 방송국으로부터 제공되는 PSIP 정보는 프로그램정보를 비롯하여 다양한 형태로 데이터 방송에 응용될 수 있는 정보를 포함할 수 있는데, 본 논문에서는 임베디드 리눅스 기반의 홈서버 시스템에 적용하여 구현하였다.

• Proceedings of the Korea Multimedia Society Conference
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• 2004.05a
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• pp.479-482
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• 2004

홈 네트워크 분야에서 신기술의 적용 및 시험, 연구 환경 구축, 응용서비스의 개발 등을 위하여 실제 가전기기를 대상으로 테스트를 한다면 많은 비용과 시간이 투자된다. 가전기기를 컴퓨터로 시뮬레이션하여 각 개별 가전의 홈 네트워크 테스트와 여러 가전기기의 연동 서비스 검증을 위해 홈 네트워크 테스트베드가 필요하다 본 논문에서는 개별 가전의 제어 및 모니터링을 지원하는 가전 시뮬레이터들과 홈 네트워크 연동 서비스를 지원하는 흠 네트워크 테스트베드를 설계하고 구축한다. 설계된 테스트베드는 재사용성을 위해 가전기기 시뮬레이션 동작을 모듈화하여 설계하고, 가전 시뮬레이션 동작 메시지는 XML을 이용하여 설계 구축한다.

• Proceedings of the Korea Multimedia Society Conference
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• 2004.05a
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• pp.293-297
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• 2004

Recently, with the spread of digital camera and PC cam, need of tools for display and manipulation of digital images have increased remarkably. These tools are called as digital album. Af now, people want to see picture not alone in home but share with someone else. The purpose of this study is to develop a digital album, which is easy to use, easy to approach and has more function. Therefore people can see picture everywhere he want and management it. If computer is connected In Internet.

• Proceedings of the Korea Multimedia Society Conference
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• 2004.05a
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• pp.839-842
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• 2004

현재 홈 네트워크 산업은 여러 단체로부터 표준화가 진행되고 있으며, 대부분의 표준안들은 차세대 직렬 전송버스인 IEEE 1394를 채택하여 홈 네트워크 내부의 가전기기들에 대한 연동문제나 인터넷사이의 연동에 대한 부분에 초점을 두고 있다. 그러나 홈 네트워크 가전기기 정보에 대한 체계적인 분석과 분류, 이들을 제어하기 위한 사용자 인터페이스, 인터넷을 통한 홈 네트워크 정보의 실시간 제공 등에 관한 연구들이 선행되어야 한다. 이에 본 논문에서는 홈 네트워크 가전기기들을 감시 및 제어하고 정보를 수집하는 이동 에이전트 기반의 홈 네트워크 시스템을 IEEE 1394를 이용하여 설계 제안한다.

• Journal of The Institute of Information and Telecommunication Facilities Engineering
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• v.8 no.4
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• pp.182-194
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• 2009

The optical fiber subscriber receive communication system is multimedia home network core technology because it is providing the high-level data quality and service. Therefore, it is required to analyze and research this communication system. This paper presents the theoretical background of the optical fiber subscriber receive system for the purpose of understanding the optical communication system principle, and then explain the flow of signal process of each block divided for ASIC implementation.

• Journal of The Institute of Information and Telecommunication Facilities Engineering
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• v.9 no.2
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• pp.56-67
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• 2010

Optical fiber subscriber receive communication system is a core technology of multimedia home networks because it provides the high-level quality of data and services. This paper executes an analysis and research on this communication systems and presents the theoretical background for the purpose of understanding the optical communication system principal and explaining signal process flows to divide each block for the implementing ASIC design.

• Journal of Korea Multimedia Society
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• v.10 no.10
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• pp.1295-1309
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• 2007

A wireless access point is used for all communications in the infrastructure mode wireless home networking, including communication between mobile nodes in the same service area. When a mobile station in the infrastructure mode wireless home networking moves into a dead zone, the communication between the mobile station and the access point is disconnected. To solve this problem, the existing wireless home network platforms focus on the ad hoc mode wireless home networking. However, the performance of an ad hoc network is poorly decreased when the number of mobile participating in the ad hoc network increases. In addition, although the ad hoc routing technique is necessary to support seamless communication of mobile nodes, the existing routing protocols, such as AODV and DSR, do not consider that a wireless channel state could affect performance significantly. Therefore, we propose a wireless home networking platform based on the ESCOD (End-to-end Seamless multi-hop COnnection based on Dual network mode) technique incorporating the VLR (Virtual Link Routing) scheme that supports end-to-end seamless connections. Extensive experiments show that the proposed wireless home networking platform incorporating the VLR scheme outperforms wireless home networking platforms based on the AODV and the DSR routing protocols respectively in terms of low packet transmission failure rate, fast packet transmission time, high TCP performance, and a wider coverage area of wireless home networks.

• Journal of IKEEE
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• v.11 no.4
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• pp.227-234
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• 2007

In this paper, to support a QoS level appropriate to the user in Wireless Home Network based Wireless LAN, we propose a QoS support architecture which includes Wired Network and Wireless Network. Actually, an important problem to support QoS in Wireless Home Network is approached not only on a MAC level in Wireless LAN but also on a integrated method to combine Network layer with Datalink layer. By applying the integrated QoS support method, it is possible to provide QoS support architecture using a Wireless LAN terminal with a minimum changing, and the proposed scheme has advantage of QoS support method, which is more superior than a existing scheme to support QoS in MAC level of Wireless LAN. Simulations results show that overall performance of the proposed scheme can be improved.

• 한국정보통신설비학회:학술대회논문집
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• 2005.08a
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• pp.104-108
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• 2005

Due to the rapid spread of high speed Internet access and the contents digitization, the demand for the copyright protection of digital contents has increased continuously so that the digital rights protection technology becomes one of the inevitable components in the digital content providing services. This paper describes the current trend of DRM(Digital Rights Management) technology and how to implement the system for the protection of digital assets in the digital home networking environment.