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According to the spread of computers and the development of the information society, people are focused on privacy information. As the development of its associated policy and technology, it has been tried various attempts to protect their personal information. In this paper, we proposed anti-screen capture modules to protect personal information or a company's confidential information for agencies and departments that keeps top security. As a result, we can prevent an illegal use or a stealing of another person's information in a public agency or personal computer. Also modules can stop exposures of top security data and personal information during they communicate with others in their institution's sever system.

Recently our lives have become more convenient as a development of smart phones. For this reason, smart phone users have increased rapidly as well. However existing built-in functions in smart phone are not fully supported variety of currently released applications. So Appcessories that combines mobile handsets and accessories is attracting the notice of smart phone users. In this paper, we design and implement remote control Appcessories using Bluetooth communication. Also we verify a robustness of mobile terminals and system hardware and convenience of using applications by applying it to the infant car system.

In this paper we tried to overcome the limit of contents which occur when we implement the augmented reality technology adapted application on commercialized mobile system. First of all, we checked the requirement analysis of exclusive mobile system to support augmented reality. And then we designed and realized the mobile system based on this facts. Also we embodied augmented reality application based on NyARToolkit which assists augmented reality techniques. Finally the implemented contents operated properly in our exclusive mobile system. Consequently we confirmed the suitability and validity of our system through above test.

Black marker cause unnatural problems between the existing various contents and marker. To solve this problem, we tested frequency of 3D objects according to the various colors and color placement. Based on this, infant`s learning content system based NyARToolkit for the mobile-based augmented reality was implemented. By insert to color marker, We are solved the unnatural problems in the Implemented system. and infant can study seamlessly because concentration increases by the familiar character on the markers.

The recent development in multimedia technology such as audio technology needs high quality audio system. Especially, Real Audio Technology is to be developed to play realistic sound. To meet this demands, researches on 3-Dimensional Audio which provides realistic audio effect in virtual reality and augmented reality are conducted. In this paper, how to provide realistic audio effect by using better audio technologies in augmented reality was investigated. In the study, the movements of the 3-Dimensional model on the markers were used to provide the sense of reality in virtual and real world. Namely, the sound was modified according to the movement of the model. The change in distance and angle of the model affected the sound volume and the pitch.

Recently as AR(Augmented Reality) is focus of attention, AR is applied to various fields and is expected its valuable use. In this paper, we suggested the method to combine existing e_Book with augmented reality technology based on mobile equipment. We ascertained that augmented reality contents implemented on PC work well in pITX embedded lines (CPU Intel ATOM Z530) and we implemented augmented reality using marker in e_ Book in pITX embedded lines through these experiments. As the result of it, we could show the contents at the same time which had difficulty to be expressed on e_Book before. Also the existing augmented reality contents could be used as it is. Finally we expected that the user could interact with virtual contents or services directly and intuitively in the real world.

Recently as AR(Augmented Reality) is focus of attention, AR is applied to various fields and is expected its valuable use. In this paper, we implemented the system based on Goblin XNA which supports high resolution model file and higher AR. We confirmed the relation of model output among the number of marker, the location and changes of camera distance. And we produced the infantile studying contents using AR and embodied. In implemented contents, we showed the familiar character to infants on each page marker. As the result of it, we can raise their concentration and at a time studying supporters can use the contents easily as well. Also we put 3 marker on each page of contents to recognize it smoothly in case one part of it is hidden by any obstacle. Finally we maximized the learning effect such as presence and immersion in studying through reinforcing 3D models according to the every situation.

As for information system in hospital which digital hospital aims at, there are PACS(Picture Archiving and Communication System) and so on. PACS transfer and store various medical pictures which are occurring in hospital. The various medical pictures is captured by using keyboard or foot switch during a surgical operation. In this paper, foot switch USB module that can be mounted into a main foot switch case is designed and implemented, it is having a MCU circuit with a built-in micro-controller and a I/O interface having a maximum of five switch. we also developed foot switch control software program with various functions. The result of using the module in the hospital field confirms that the module operates safely.