• 한국통신학회논문지
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• 제37B권9호
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• pp.831-836
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• 2012

본 논문에서는 스마트폰, 스마트 TV와 PC를 이용하여 사용자에게 보다 편리한 서비스를 제공하기 위한 방안을 제시하였다. 편리한 서비스를 제공하기 위해 스마트 폰, 스마트 TV와 PC 간의 상호 연동을 위한 플랫폼을 설계하고 이를 소프트웨어로 구현하였다. 본 논문에서 개발한 스마트 폰 어플리케이션은 스마트 TV와 무선 통신하여 스마트 TV 채널과 음량등을 제어하고 사용자 인증 서비스를 제공한다. PC는 스마트 폰에 저장되어 있는 사용자 정보를 이용하여 원격 부팅과 원격 로그인 서비스를 제공한다. 본 논문에서 설계하고 구현한 소프트웨어 플랫폼이 가까운 미래의 스마트 생활에서 다양한 스마트 기기간의 상호 연동 소프트웨어 플랫폼 개발에 초석이 되길 바란다.

• 한국컴퓨터정보학회논문지
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• 제17권5호
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• pp.93-101
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• 2012

도시계획이나 재난방재와 관련하여 지리정보시스템과 설계용 소프트웨어를 중심으로 한 다양한 소프트웨어들이 활용되고 있다. 그러나, 최근의 스마트폰 애플리케이션을 중심으로 한 모바일 환경의 변화와 3차원 지리정보시스템의 발전, 그리고 web 환경의 변화는 도시계획이나 재난방재 분야에 새로운 변화를 요구하고 있다. 특별히 Open API와 Mashup의 성장과 발전은 도시계획이나 재난방재 분야에 시민참여형 스마트폰 애플리케이션의 가능성을 넓혀주고 있다. 본 연구에서 제안하는 시민 참여형 스마트폰 애플리케이션 개발은 기술적, 경제적 및 행정적 파급효과를 가져올 뿐 아니라, 최근 활발히 건설되고 있는 U-City, U-health, 그리고 재난방재에 효과적인 역할을 할 것을 기대할 수 있다.

• 대한임베디드공학회논문지
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• 제8권1호
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• pp.43-50
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• 2013

The narrow dynamic range of most smart phone cameras is severely limited. It usually is narrower than the dynamic range of most scenes. So we proposes a illuminance dynamic range expansion using multi-point knee for smart phone camera. Such as logarithmic functions the proposed method compress the image sensor output signal. Additionally, the proposed method was merged into the gamma that is essential circuit for any cameras. To justifying multi-point knee effectiveness, we configure the control and quality evaluation system for smart phone camera module. Experimental results show that the lost information by cut off and saturated affectively reconstructed in darker and in brighter areas. Finally this methods have advantage to implement without any changing hardware for conventional smart phones.

• 한국지역사회생활과학회지
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• 제22권4호
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• pp.655-668
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• 2011

Although consumer ethical behavior related with illegal copies of digital software has been considered to be an important issue, not many studies have attempted to examine the issue. Firstly, this study attemped to explain the moral judgment and intention to make illegal copies of smart phone applications for college students. Secondly, psychological factors such as moral intensity and perceived risk related to making illegal copies were tested to be significantly different in individual characteristics such as experience of ethical education and past experience of making illegal copies of software, sex, age and household income. Thirdly, the effect of related factors such as psychological factors and individual characteristics was estimated to significantly influence moral judgment and intention to make illegal copies. Two step method(using LIMDEP program) was applied to estimate the model as a structural equation model. According to the results of this study, magnitude of consequences, financial risk and performance risk were found to be significantly different in income groups(less than middle class vs more than middle class). Prosecution risk was found to be significantly different in gender groups(female vs male). In addition, social consensus, financial risk, performance risk and prosecution risk were found to be significantly different in ethical education groups(experience vs no experience). Furthermore, moral judgment for making illegal copies of smart phone applications was found to be significantly influenced by income, ethical education, magnitude of consequences, temporal immediacy and social consensus. And intention to make illegal copies of smart phone applications was found to be significantly influenced by moral judgment, age, financial risk, performance risk and prosecution risk.

• 한국융합학회논문지
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• 제13권2호
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• pp.215-222
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• 2022

이 연구의 목적은 블랜디드 러닝이 지적장애 학생의 스마트 폰 및 애플리케이션 사용 능력에 미치는 효과를 파악하는 것이었다. 전라남도와 광주에 소재하는 특수학교와 특수학급에 재학하고 있는 고등학교 학생 30명을 연구대상으로 선정하였고, 각 15명씩 실험집단과 통제집단에 배치하였다. 실험집단은 직접교수와 앵커드 교수, 체험교육 및 지역사회 중심 교수를 결합한 블랜디드 러닝 수업에 참여하였고, 통제집단은 전통적인 교사 중심의 강의식 수업에 참여하였다. 평가는 사전평가와 사후평가를 하였고, 중재가 끝나고 2주 후 유지평가를 하였다. 연구자료는 반복측정 이원분산분석을 이용하여 분석하였다. 연구 결과, 실험집단은 통제집단보다 스마트 폰과 애플리케이션 사용 능력에 있어 유의미하게 향상하였다. 그러므로 블랜디드 러닝은 지적장애 학생에게 스마트 폰과 애플리케이션을 지도할 때 유용하게 사용할 수 있는 교수방법이 될 수 있다.

• 한국수학교육학회지시리즈A:수학교육
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• 제53권2호
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• pp.239-261
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• 2014

The purpose of this study is to analyze the influences of discussion-based learning of mathematics using smart phone application on the middle school students' mathematics learning. For this purpose, we selected 6 open problems suitable for learning mathematical reasoning and five 3rd grade middle school students as participants who expected to participate in 6 lessons of discussion-based learning of mathematics using smart phone application. From the analysis of 6 lessons, we found the following results. First, attending the lessons of discussion-based learning of mathematics using smart phone application makes students more interested in mathematics and change their mathematics learning attitudes more positively. Second, the lessons of discussion-based learning of mathematics using smart phone application facilitate students' mathematical communication with the help of various communication methods using many functions of smart phone applications. Third, the lessons of discussion-based learning of mathematics using smart phone application provide teachers with teaching-learning environment where teachers can easily give their students consultation about mathematics learning or daily life.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제6권1호
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• pp.64-83
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• 2012

The number of smart phone users is rapidly growing due to recent increase in wireless Internet usage, development of a wide variety of applications, and activation of M2M (Machine to machine) services. Although the smart phone offers benefits of mobility and convenience, it also has serious security problems. To utilize M2M services in the smart phone, a flexible integrated authentication and access control facility is an essential requirement. To solve these problems, we propose a context-aware single sign-on and access control system that uses context-awareness, integrated authentication, access control, and an OSGi service platform in the smart phone environment. In addition, we recommend Fuzzy Logic and MAUT (Multi-Attribute Utility Theory) in handling diverse contexts properly as well as in determining the appropriate security level. We also propose a security system whose properties are flexible and convenient through a typical scenario in the smart phone environment. The proposed context-aware security system can provide a flexible, secure and seamless security service by adopting diverse contexts in the smart phone environment.

• 전기학회논문지
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• 제60권1호
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• pp.174-183
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• 2011

This paper is about a bar code decoding algorithm developed for smart phone applications. The algorithm consists of bar code data extraction procedure, bar code signal estimation procedure, and bar code decoding procedure. To detect the peak bar code module, a DSTW had been applied because of its outstanding performance in ECG peak detection. In order to minimize errors due to non-uniform light effect, the proposed algorithm was acted as a baseline wandering filter based on module peaks detection. The algorithm had been tested to evaluate the performance under the conditions of blurring, non-uniformed light and white noises. The algorithm had shown excellent performance in reconstruction of bar code decoding, compared to other conventional methods. In order to show the possibility of applying the algorithm to a smart phone, a real UPC-A type 150 bar code pictures obtained from a smart phone camera was applied to the algorithm, achieving the correct recognition rate of 97.33%.

• 한국전자거래학회지
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• 제16권4호
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• pp.221-239
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• 2011

스마트폰 시장의 확장과 함께 다양한 애플리케이션이 개발되고 있으며 이는 모바일광고의 형태 및 시장 변화에도 많은 영향을 미치고 있다. 기존의 모바일광고는 문자 기반의 푸쉬형 광고였지만 스마트폰 환경의 모바일광고는 애플리케이션에 덧붙여지는 배너형태 또는 광고 자체를 위하여 개발된 브랜디드앱의 형태로 변화하고 있다. 이에 따라 본 논문에서는 스마트폰 환경에서 모바일광고 태도에 영향을 미치는 요소들에 대하여 광고업계 종사자들과 사용자들의 관점에서 분석하여 비교해 보았다. 분석 결과는 모바일광고 사용자와 광고업계 종사자들 간에 광고 태도에 미치는 영향 요소에 대한 인식의 차이가 확연히 있음을 보여준다. 본 연구는 스마트폰 환경의 광고 제작 시 주로 고려되어야 하는 요인들을 제시하며 광고업계 종사자들이 광고제작 시 사용자의 입장을 충분하게 고려하여야 함을 보여주고 있다.

• Journal of Information Technology Applications and Management
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• 제23권3호
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• pp.49-59
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• 2016

Rapid technological advancements and widespread adoption of smart phones in recent years provide students with new opportunities for getting knowledge and making researches in innovation century. As the penetration of smart phone devices in education increases, there is a large growth in the use of these devices especially among the youth. In spite of increasing importance of smart devices in education, the significant features of these technology devices for general learning have not been experientially addressed. In this study we are going to investigate the comparison of smart phone devices and find the necessary conditions for using mobile devices as an educational tool by a conjoint method. There will be five attributes: screen size, batter type, mobile OS, memory capacity and price. By surveying we got the results which showed us the respondents' desire of using specific smart phone; thus, we defined that screen size attribute is the most important device characteristic.