• Journal of Broadcast Engineering
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• v.10 no.4 s.29
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• pp.557-575
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• 2005

Much research in core technologies has been done to make it possible the ubiquitous video services over various kinds of user information terminals anytime anywhere in the way the users want to consume. In this paper, we design plototypesystem architecture for the ubiquitous TV program content consumption based on user preference via various kinds of intelligent information terminals in digital home environment, and present an implementation and testing results for the prototype system. For the system design, we utilize the TV Anytime specification fur the consumption of TV program contents based on user preference in TV programs, and also use the MPEG-21 DIA (Digital Item Adaptation) tools which are the representation schema formats in order to describe the context information for user environments, user terminal characteristics, user characteristics for universal access and consumption of the preferred TV program contents. The proposed ubiquitous content mobility prototype system is designed to make it possible to seamlessly consume contents by a single user or multiple users via various kinds of user terminals for the TV program contents they watch together. The proposed ubiquitous content mobility prototype system in digital home environment consists of a home server, a display TV terminal, and an intelligent information terminal. We use 42 TV programs contents in eight different genres from four different TV channels in order to test our prototype system.

• IE interfaces
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• v.21 no.1
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• pp.65-74
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• 2008

In the future, the ubiquitous computing environment will provide users with context-aware services, intelligently interacting with omnipresent resources and surrounding environments at any location and time. Therefore, the ubiquitous computing environment requires context-aware applications in order to gather and analyze context information in various situations. However, existing context-aware applications have mainly focused on providing services and adapting themselves to users based on user related contexts. But this environment requires not only user related contexts but also Quality-of-Service (QoS) related contexts. In this paper we propose a frame-work for supporting user-oriented QoS in ubiquitous environments. The proposed approach adopts a semantic ontology and a neural network algorithm in order to reason about explicit and uncertain contexts. We also show the possibility of applying the framework to real environments such as collaborative engineering service, automobile maintenance service and ubiquitous home service.

• 한국정보통신설비학회:학술대회논문집
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• 2003.05a
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• pp.151-189
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• 2003

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2004.11a
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• pp.571-574
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• 2004

It is rapidly expanding to provide Home Digital Service based on the Home Network System in intelligent apartment. Fortunately, Korea has one of the highest rates of Internet penetration and access in the world. Construction companies used the Home Network system as a strategy of differentiation and it is available to the customers to raise their asset value. Besides, the government has a positive response to accept the new movements to make the digital environment with 'u-Korea (Ubiquitous Korea)' as the slogan. However, the level of providing Home Digital Service is actually at the beginning. The develop the home network industry more effectively, the related industries' cooperation is essential. The purpose of this study is to propose a providing model of Home Network System for the construction company and to make a method to response the fast change of technology development and customer's request at the point of construction companies' view.

• Journal of the Korea Computer Industry Society
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• v.9 no.1
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• pp.11-20
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• 2008

Home network service, which is a part of Ubiquitous application service provides remote control and monitoring service, other appliance and peristaltic service, security service of appliance is connected to network in the home. <중략> By using gateway which is implemented undertook control of each function and using main server for controlling and monitoring of appliance, implemented system which is able to control the appliance in home from inter/outside is implemented.

• Archives of design research
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• v.19 no.2 s.64
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• pp.333-342
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• 2006

Consumers have paid attention to various functions of PC's nowadays from its efficiency in the past. This study set limits to adapted computers by consumer needs for their residence facilities and ubiquitous environment in our society. The purpose of this study is to suggest high potentialities of adapted computers and it's design for materializing house ubiquitous system. It has come out from analyzing PC market. The result is that Barebone PC, a kind of set PC, could be one of the most actual way for materializing house ubiquitous system. This study suggests many potentialities of Barebone PC which invites modular system. The existing Barebone PC is a kind of semimanufactures, however the new Barebone PC in this study is a expanded concept of modular system that connected to the area of the electric home appliances. This is inspected by analyzing the relation among potentialities and impotance of set PC design and module.

• Proceedings of the IEEK Conference
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• 2005.11a
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• pp.1247-1252
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• 2005

Recently, Ubiquitous Computing is being actively researched and one of the main technology in ubiquitous computing environment is recognized as RFID system. The RFID system is automatic recognition technique using radio frequency that attached a tag to product read information and able to record without physical contact. In this paper, classification of tag, an operation, structure and etc of the RFID system and described on the 900MHz region radio antenna radiation characteristics.

• IEMEK Journal of Embedded Systems and Applications
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• v.3 no.1
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• pp.34-41
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• 2008

There are many researches to build up ubiquitous environment by the Ubiquitous Sensor Network(USN). These applications, such as home network, health care, natural environment and agricultural areas, are implemented by an embedded system. Their fields are gradually spreading. However the power consumption in its implementation plays an important role on the surrounding environment of the wireless network. In this paper, we design low power processor based sensor node platform for agricultural applications. We also compare its some performance with existing products.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2007.11a
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• pp.210-213
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• 2007

The direction of this project is creates a future and it experiences ubiquitous world. The subject of the space is 'Ubiquitous Creative World' which Imagining the past becomes actuality and imagining in future become actuality and future when it will approach at once. The storyline of this space is as belows; 1 Zone - Ubiquitous life Gallery : it will be able to experience the future world ; home, office, street, school and the others. 2 Zone - Interactive Play Gallery : it will be able to explore the interactive media with information technology ; digital cafe, imagining jump, digital art and the others. 3 Zone - New product and Business Gallery : it composed with business, new product, and demonstration gallery such as public information space. The space concept makes connection and concentration which uses unit and line for world which becomes accomplished by the network. Connection of digital and the human being to make the center of new digital life.

• Journal of Information Processing Systems
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• v.1 no.1 s.1
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• pp.96-101
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• 2005

Spotlighted as an innovative information technology environment, ubiquitous computing has been actively researched on recently. Especially, domestic and global researches focus on the RFID system, which is being eyed to replace the existing bar-code system. As an essential technology for ubiquitous computing, the RFID system can be applied for various purposes. The security issues of the RFID system focus on how the low-priced tag type could have reasonable price competitiveness. The Auto-ID Center in the U.S. is spearheading the research on distribution service and omni-directional security. As for Japan, the researches on omni-directional security and EPC application are necessary in securing the technology for ubiquitous computing with support from the Ministry of Public Management Home Affairs, Posts, and Telecommunication. In this paper, a method of ensuring the availability of the RFID system service will be presented based on the ubiquitous computing environment with the existing omni-directional security and user-friendly interface. While the existing researches focus on the RF reader system and tag-based security, this paper's suggestion also considers the availability of a sen ice to suggest ways of increasing the practical usage of a low-priced RF tag.