• Proceedings of the KIEE Conference
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• 2004.11c
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• pp.280-283
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• 2004

우리나라의 디지털 방송환경은 지상파와 위성에서는 빠른 진전을 보이고 있는 반면, 케이블방송에서는 너무나도 느린 진전을 보이고 있다. 무엇보다도 지상과 위성방송에서는 이미 HD 고화질 방송서비스를 실시하고 있지만, 케이블방송에서는 아직까지도 HD셋탑박스의 부재로 시범서비스조차 할 수 없는 실정이다. 이에 본 논문에서는 국내 디지털케이블방송의 표준인 OpenCable에 맞추어 HD방송 및 CableCard지원에 대한 내용을 구현위주로 기술한다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2001.11b
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• pp.189-192
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• 2001

In this paper, we propose a method of loaming user preference for set-top box scenario. Our proposed method analyzes user history data to learn user preference and then automatically suggest the list of TV programs to the user under the assumption that the TV programs are regularly repeated on time and daily basis. We used MPEG-7 MDS to describe user history data. The experiment results show the proposed method yielded a good performance.

• International Journal of Contents
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• v.1 no.1
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• pp.16-20
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• 2005

This paper proposes a frame work for embedded system management. The management system can automatically monitor and maintain the Internet connected embedded-systems such as sensor devices, set-top box, web-pad, information appliances, PDA, etc. Users can easily diagnose system state, resolve system problems, maintain and update applications, and back up user information using the management system. We implement prototype for the management system on embedded Linux system and High -available Linux system.

• Proceedings of the Korean Information Science Society Conference
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• 2007.06a
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• pp.3-4
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• 2007

• Proceedings of the IEEK Conference
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• 2002.06c
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• pp.193-196
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• 2002

Nowadays, many users use internet and many set-top box needs browser for Internet. so we need to develop a Java Virtual Machine to improve browser's performance. This paper has been studied a Java Virtual Machine based on Real-Time 05 Vxwroks. Java Virtual Machine handles Java byte-code quickly in Browser So, this paper has designed module and interfaces for Embedded Browser and Implemented them.

• 제어로봇시스템학회:학술대회논문집
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• 2000.10a
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• pp.79-79
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• 2000

In this Paper, the PC input device using MEMS gyros and accelerometer is newly developed, so that it can measure rotation rate and linear acceleration of the human body in space. In General, the human motion has 6 degree of freedom but 2 degree of freedom is enough PC monitor with 2D display. Therefore the simple method is proposed to achieve minimum degree of freedom. It is also applied to the PC mouse. This method can be expanded to the input device for internet set-top box or internet TV.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.04a
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• pp.657-660
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• 2002

현재 Embedded system 에서 많은 기업체들이 리눅스를 채용하고 있고, 이러한 임베디드 리눅스는 실시간 운영체제가 필요한 로봇제어기에서부터 PDA, set-top box등 여러 분야에 걸쳐 응용되고 있다. 본 논문에서는 StrongARM SA-1110 CPU을 이용하여 만들어진 임베디드 시스템에 리눅스를 사용하여 독립형 비전모듈을 개발한 내용을 기술한다. 또한, WinCE 를 사용하여 개발된 비전모듈과의 성능을 비교하여 리눅스를 이용한 독립형 비전모듈을 평가하고, 머신비전 분야에서의 리눅스 응용 가능성을 제시하였다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 1999.06b
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• pp.3-8
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• 1999

DTV(Digital Television)라 일컬어지는 방송 방식은 미국의 경우 지상파를 이용하여 압축된 영상신호와 음성신호를 방송 및 수신을 하기 위한 것으로 ATSC(Advanced Television System Committees)가 규격을 제안하고 FCC(Federal Communications Commission)가 수용하여 현실화 되어졌다. ATSC 산하의 다양한 Working Group에서는 방송국, 방송장비업체, 가전업체 등이 제안함으로써 규격화하여 전송부는 VSB(Vestigial Side-band), 영상압축은 MPEG2, 음성압축은 AC3로 결정하였다. 본 고에서는 ATSC의 규격에 따라 송신되어지는 방송을 수신할 수 있도록 채널복조와 영상 및 음성신호를 복호화 할 수 있는 수신 시스템의 구성과 테스트 결과를 살펴보고자 한다.

• Journal of the Korea Safety Management & Science
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• v.14 no.3
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• pp.277-282
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• 2012

A Smart TV device is either a television set with integrated internet capabilities or a set-top box for television that offers more advanced computing ability and connectivity than a contemporary basic television set. In recent years, there has been a popularity rose up on Smart TV (Smart Television) usage at home. This paper present the intelligent production status boards using features and functions of smart TV in shop floor. With the proposed status boards, we can reduce installation and operating costs of the existing production status boards. In addition, This article present the system that can line monitoring without equipments as CC TV.

• Journal of Digital Convergence
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• v.12 no.2
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• pp.307-314
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• 2014

Digital broadcasting areas are leading information technology and having been strengthen the competitiveness of industries. In this paper, we developed HSS(Home Stream Station) for recording and transmitting digital broadcasting on digital TV without additional devices, which is based on cable TV network at home. The HSS can record a broadcasting program selected by user while digital TV shows the other channel. User can watch the program stored on the HSS at any time and any digital TV in the home. LAN interface of the HSS was also developed for supplying high quality digital broadcasting-contents through home network using IP-STB(Set Top Box).