• Journal of the Korea Institute of Information Security & Cryptology
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• v.21 no.6
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• pp.119-132
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• 2011

Mobile devices such as smart phones have brought big changes to be called as 'mobile big bang' against which we can't go. Mobile banking service and MTS(Mobile Trading System) are freely available at any time, anywhere and we are able to activate communications between financial company staffs out of the office and take care of business works even remotely by using mobile devices. Mobile devices are approaching as 'smart mobile innovation' to improve an enterprise productivity and competitiveness, but threats which engaged in unfair trading behaviors or unwholesome business works in finance companies are increasing and the customer's information can be leaked out by using the nonpublic official information and mobile devices. Therefore, we have to analyze the potential problems and take the necessary countermeasures with preemptive steps to protect the customer's information and improve the financial trading soundness and fairness. In this paper, we would like to suggest countermeasures and threats against using the financial company's mobile devices focusing on the financial investment companies by 'Capital Market and Financial Investment Business Act'.

• The Journal of the Korea institute of electronic communication sciences
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• v.2 no.2
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• pp.136-141
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• 2007

To produce eco marine products which is taking interests recently, the necessity of aquafarm tracing system is being emphasized. Considering the particularity of aquafarm, wireless communication environment is essential in order to manage aquafarm efficiently. The terminal which automatically collecting the environmental information and transferring it to server needs specified functions; input-output the information conveniently and search it visually. In this paper, we design specified terminal and its functions to monitor the environmental information at aquafarm.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.6 no.5
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• pp.762-767
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• 2002

In this paper, We suggest Credit Card and On-line Financial Business Method Using on Wireless Terminal. First, wireless mobile terminal of credit card member is received suity code from dealing verification system of credit card company. Second, a credit card member give security code to member store. Third, the security code is compared with security code of the member in dealing verification system of credit card company.

• Journal of the Korea Society of Computer and Information
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• v.11 no.4 s.42
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• pp.261-269
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• 2006

In this paper we has implemented a tour guide terminal using the embedded linux. The implemented terminal can locate its position using GPS interface and display the sightseeing information of the current location. With view of this implementation results, we confirmed the possibility of embedded linux terminal as a tour guide PDA. The realtime update of sightseeing information using a mobile communication functionality will be included in our future works.

• 한국정보통신설비학회:학술대회논문집
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• 2008.08a
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• pp.97-101
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• 2008

Voice over IP is a telephone service which sends and receives the voices through the Internet. Because the infrastructure of wireless and mobile communication networks such as 3G, Wi-Fi and WiMAX has expanded, the study about Mobile VoIP, which provides the voice service from wireless network, has been actively in progress. Since Rei 6 HSPA in 3GPP and Rev A lxEVDO in 3GPP2, VoIP through the data channel is more efficient than circuit switch. It is predicted that VoIP over 4G will be more effective and 4G mobile VoIP business will be vitalized in the future. In addition, there are businesses which offer VoWLAN by using software such as Skype and Fring. They provide services which cheapen the price of international calls and long distance calls. This paper will present the Korean and other countries' mobile VoIP trends, its classification along the network connection, the study on techniques, and conditions of mobile VoIP. It also will be described a view of terminal convergence and service convergence.

• 한국HCI학회:학술대회논문집
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• 2008.02a
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• pp.648-653
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• 2008

With development of mobile communications terminal and expansion of mobile Internet, a large number of users can use mobile web contents at anytime and anywhere and will demand service of greater contents. Due to such demand, many studies are being carried out on transcoding contents so that wired web contents can be used in mobile web. However, transcoding and creation of mobile web contents involve difficulties because specifications available from telecommunications companies and mobile terminals have not been standardized. Especially, in order for serving dynamic object of wired web page contents to dynamically change according to time or user, it is required not only to program scripts to suit each terminal, but also to transcode the resources used in advance. For solution to this problem, this study uses the hierarchy structure of DOM (document object model) to display structural characteristics of wired web page. In other words, this study proposes the following technique Wired web pages are analyzed and the results are established as data structure. Then, dynamic object is extracted and the domain is indexed so that, when serving mobile web page, information can be extracted at the indexed position to create mobile web contents for service on real-time basis.

• IEIE Transactions on Smart Processing and Computing
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• v.3 no.5
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• pp.325-330
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• 2014

The era of convergence is being applied to all areas of Information and Communication Technology (ICT). The convergence of broadcasting service and communication service almost occurs on smart devices including smartphone. The smart hybrid Digital Multimedia Broadcasting (DMB) is a typical example of the convergence of broadcasting and wireless communication service. The hybrid mobile broadcasting service can support seamless video, 3D, high quality, and additional data services based on network connection between the broadcasting and wireless network. The gateway and terminal (including apps on the smartphone) take the role of the main components on the hybrid service. This paper presents the service concept, main components structure, the implementation of gateway and terminals, and field test to the urban areas for the mobile hybrid system.

• Journal of Korea Society of Digital Industry and Information Management
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• v.6 no.3
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• pp.79-89
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• 2010

Cellular and Smart phone through the business and real life is associated with an increasing number of information processing, Breaches associated with mobile terminal Tile has occurred and cause Crime and damage. In this paper, Cellular and Smart phone for mobile forensics SYN scheme and JTAG scheme to target Cellular and Smart phone for the extraction of forensic data will be studied. SYN, JTAG approach to forensic analysis indicate with the process, Every Smart phone's OS specific performance and data extraction were compared. In the laboratory, Cell and smart phone with the SYN scheme and JTAG scheme to extract forensic data Improvement compared to the extraction is presented.

• Proceedings of the Korea Society of Information Technology Applications Conference
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• 2005.11a
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• pp.85-90
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• 2005

The advance of mobile and telematics technologies has produced vehicles with various convenient services for drivers. Specifically lots of researches and several technologies have been developed to provide services of a remote vehicle diagnosis and control. The existing and representative product for a vehicle control is a RCS (remote control system), but it has a problem of short control distance and fragile security. In this paper, a telematics terminal embedded with CDMA and GPS is designed, which can be connected to the Internet. It allows a driver with a cellular phone to remotely diagnosis and control a vehicle via wireless network and SMS.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.18 no.2
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• pp.130-135
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• 2005

In this papers, we made study for plastic chip antenna, the plastic is Foamex with the circle of PVC and its electric characteristics are dielectric constant 1.9, insulation intensity 112 KV/cm. The proposed antenna is same as the conventional antennas are usually constructed with ceramic chip, which are not fragile in nature and don't tend to break easily. Therefore the proposed antenna with its advantage is attractive for application in mobile antenna. In order to valid the proposed papers, it is implemented the antennas of four types and experimented. From the results, we conformed that the antennas are operated at the dual band which is cellular band and Korea-PCS band. And the gain of the antennas has about above -2 dB and the pattern is same as conventional antennas. From this papers, the realized antennas using Foamex material will be application for mobile phone antenna.