• Proceedings of the KIEE Conference
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• 2005.05a
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• pp.218-220
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• 2005

In this paper, we have designed a home network system based on WIPI. WIPI (Wireless Internet Platform for Interoperability) is the standard specification for the mobile platform made by the Mobile Platform Special subcommittee of the Korea Wireless Internet Standardization Forum(KWISP). The system consists of three parts - a server, client, and simulator, and all parts are developed with JAVA. People can control household appliances anytime, anywhere by using cell phones which can use the wireless Internet, so the system offers convenience to people.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2004.04a
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• pp.379-383
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• 2004

Mobile Internet has different platform cause interrupt activation of mobile internet because contents providers have each different development environment. To use of WIPI(Wireless Internet Platform for Interoperability) developer by KWISF(Korea Wireless Internet Standard Forum) founded to solve this problem guarantee independence of hardware and interpretation of mobile application. In this paper, we research method to activate WIPI which is standard platform to develop applications easily and efficiently in mobile environment and we implement WIPI application to show the excellent of WIPI in mobile development environment.

• Journal of the Korea Computer Industry Society
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• v.3 no.9
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• pp.1295-1314
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• 2002

Recently, wireless internet market has reached to the induction and growth stage by rapid development of Mobile service by fusion of Internet and wireless technology of communications. But, current wireless internet service of domestic five mobile communication companies are being limited to the service using markup-language, platform and Contents. Therefore, research on integration Contents of different. Wireless internet platform and its development are necessary. For the easiness of maintenance and compensation, this paper attempts to design a Wireless internee Contents converter for integrate wired and wireless platform which automatically converts to WML and HDML, M-HTML, S-HTML, C-HTML through analysis of HTML document.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2001.10a
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• pp.407-410
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• 2001

Recently, wireless technology is widely used with mobile phone like Handhold terminal, PDA. The technology in internet is moving into wireless internet. The mobile platform technology is especially important as well as internet world. In this paper, commercial mobile products are described and standardization trends are also shown for the new future platform development. M-commerce application service is possible to spread over the mobile platform.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2004.11a
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• pp.9-13
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• 2004

Mobile Internet has different platforms cause interrupt activation of mobile internet because contents providers have each different development environment. To use of WIPI(Wireless Internet Platform for Interoperability) developer by KWISF(Korea Wireless Internet Standard Forum) founded to solve this problem guarantee independence of hardware and interpretation of mobile application. In this paper, Examine WIPI's characteristic and main standard that is standard platform that can reduce expense that happen in current different platform in treatise. And. common use phrase function that consider convenience of chatting service between portable phone that is that is used recently design and embody. Wish to argue about elevation of the character input speed of portable phone and effect that happen thereby through this.

• Journal of the Korea Society of Computer and Information
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• v.9 no.4 s.32
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• pp.149-155
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• 2004

Current wireless internetservice of domestic five mobile communication companies are being limited to the service using markup-language. platform and Contents. Therefore, research on integration Contents of different Wireless internet platform and its development are necessary. For the easiness of maintenance and compensation. this paper attempts to design a Wireless internet Contents converter for integrate wired and wireless platform which automatically converts to WML and C-HTML through analysis of HTML document.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.9 no.3
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• pp.480-486
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• 2005

Recently, domestic interest about wireless internet is rising gradually. Characteristic of present domestic wireless market is that mobile communication businessmans appropriate each other different mobile platform. So, contents provider's development environment can not be same each other. This makes contents providers repeat same work. To solve this problem, standardization work of wireless internet market was begun. The three mobile communication companies and TTA (Telecommunications Technology Association), RRU(Radio Research Laboratory), ETRI(Electronics and Telecommunications Research Institute) progressed standardization. By the result, May 2002, WIPI that is wireless standard platform selected by mobile platform standard that is TTA organization standard. In this paper, 1 am going to examine the WIPI. WIPI can reduce mostly expense that happen when we use different platform. 1 design and embody common phrase function. Through this, 1 am going to show improvement of the character input speed in cellular phone. And I wish to discuss expected cost decrease effect. Investigate about platform of treatise that is used in domestic. analyze about the characteristic, merits and demerits. Chatting service and common phrase function design and embody. Finally, wish to discuss about advantage of common phrase function and practical use field.

• Proceedings of the KSRS Conference
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• 2002.10a
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• pp.854-859
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• 2002

Location Based Services, or LBS refers to value-added service by processing information utilizing mobile user location. With the rapidly increasing wireless internet subscribers and world LBS market, the various location based applications are introduced such as buddy finder, proximity and security services. As the killer application of the wireless internet, the LBS has preconsidered technology about location determination technology, LBS middleware server for various application, and diverse contents processing technology. This paper describes the open architecture for LBS platform ensuring interoperability among the wireless networks and various location-based application services and the functional requirements for the LBS platform. The LBS platform in a narrow sense provides a standard interfaces for location management and network management for location services as follows, positioning (location acquisition through network or/and handset), location managing, location based functions, profile management, authentication and security, location based billing, information roaming between carriers and the system monitoring independent to specific network or ISP/CPs(Content Providers).

• Journal of Digital Contents Society
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• v.6 no.4
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• pp.261-266
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• 2005

As the wireless internet applications are spreading more fast and the mobile devices are being used increasingly, it has recently been activated to develop a variety of contents for mobile service. Mobile services can be enjoyable whenever and wherever on would like to. They became so universal that they might reach all the area where the wire has never approached before. This study is to suggest a mobile game system based on the technology called WIPI(Wireless Internet Platform for Interoperability), which can be easily available to anyone who would like to enjoy it. Game contents to use WIPI can allow the mobile carriers to provide users to download the common mobile application throughout the wireless web by sharing the internet platform. This can eventually lead to the generalization of transforming west game contents into WIPI-based. Therefore, the market of WIPI-based game contents will be expected to grow at high speed and its significance deserves to be considered for commercialization.

• 제어로봇시스템학회:학술대회논문집
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• 2005.06a
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• pp.1826-1829
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• 2005

Recent advancement in wireless communications and electronics has enabled the development of low power sensor network. Wireless sensor network are often used in remote monitoring control applications, health care, security and environmental monitoring. Wireless sensor networks are an emerging technology consisting of small, low-power, and low-cost devices that integrate limited computation, sensing, and radio communication capabilities. Sensor network platform for health care has been designed, fabricated and tested. This system consists of an embedded micro-controller, Radio Frequency (RF) transceiver, power management, I/O expansion, and serial communication (RS-232). The hardware platform uses Atmel ATmega128L 8-bit ultra low power RISC processor with 128KB flash memory as the program memory and 4KB SRAM as the data memory. The radio transceiver (Chipcon CC1000) operates in the ISM band at 433MHz or 916MHz with a maximum data rate of 76.8kbps. Also, the indoor radio range is approximately 20-30m. When many sensors have to communicate with the controller, standard communication interfaces such as Serial Peripheral Interface (SPI) or Integrated Circuit ($I^{2}C$) allow sharing a single communication bus. With its low power, the smallest and low cost design, the wireless sensor network system and wireless sensing electronics to collect health-related information of human vitality and main physiological parameters (ECG, Temperature, Perspiration, Blood Pressure and some more vitality parameters, etc.)