• Journal of Distribution Research
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• v.11 no.4
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• pp.31-48
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• 2006

This study was motivated by a recent channel conflict on subsidies for mobile handset between a service provider and a handset manufacturer in the mobile communication market. In this study, we have developed a two-person non-zero sum game for the channel conflict on subsidies for mobile handset, and derived its optimal strategic game solution. As a result, we have found that, between the service operator and the handset manufacturer, one who has high level of market leadership in his own market has a power to affect the optimal strategic game solution. We have also found that, when the service operator and the handset manufacturer have relatively high level of market leadership in their own market, there exist both of potential channel conflict and cooperation. The result of this study may provide an effective reference for a solution of similar channel conflicts.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.04a
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• pp.646-649
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• 2012

스마트폰의 빠른 확산과 웹 기술의 발전과 더불어 스마트폰을 통한 불법 콘텐츠 유출 가능성이 심화됨에 따라 스마트폰 포렌식에 대한 연구가 활발히 진행되고 있다. 스마트폰 내 증거 데이터는 기존의 모바일 디바이스에서 제공되었던 문자메시지, 송수신 히스토리 정보 외에 이메일, 웹 검색 히스토리, 사용자 이동경로, 소셜 네트워크 클라이언트 파일도 중요한 기록 정보로 제공된다. 이에 본 연구에서는 스마트폰 내 저장되어 있는 불법 콘텐츠 사용 흔적을 추출하여 소셜 네트워크에서의 불법 콘텐츠 유통 상황을 대응하고자 한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2007.10a
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• pp.441-444
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• 2007

In present, physical distribution industry fields are offering more convenient services using RFID, but there is plenty of room for improvement. And then, utilizing advantages of RFID which quick and simple manages goods and GPS which gets information of position at the present, we implemented a physical distribution management system can manages the information for distribution process of goods easier. We can get much information that the number of loaded goods, the data of goods, the state of distribution, whether or not missing, etc. as attached a RFID reader to the truck. and when truck is moving, we can also obtain much information consumer want that the real time data of position, distribution routes, etc. for loaded goods as received a latitude and longitude from GPS. These information have recorded, managed, and linked Google map, we can grasp the distribution information of goods on World Wide Web service. Because this service is focus on the image not the text can give the information required by the consumer on visual, it is different from the existing service. At this point of time that the RFID and GPS have used in overall industry, If these services have researched and developed with transportation, tour, etc. industry as well as physical distribution, it is possible to utilize more widely.