• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.10a
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• pp.137-139
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• 2017

During the last decade, the most competitive field may be smartphone industry. Among various smartphone brands, iphone of Apple and Galaxy series of Samsung have continue to keep the hot race of competition. In this point, this study attempts to analyze big data on two the two brands in SNS and to compare the major characteristics and preference of users.

• The Safety technology
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• no.187
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• pp.24-26
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• 2013

바야흐로 스마트 시대가 도래했다. 스마트폰, 태블랫PC 등 스마트기기의 등장은 현대인들의 생활에 큰 영향을 미쳤다. 스마트폰 하나만 있으면 언제 어디서나 원하는 직업을 할 수 있는 꿈같은 일이 현실로 다가온 것이다. 이런 시대적인 흐름에 따라 관련 산업도 큰 변화를 겪고 있다 각종 스마트기기에 들어가는 부품을 전문적으로 제조 유통하는 기업들이 속속 등장하고 있는 것이다. 이런 기업들 기운데 업계의 남다른 주목을 받고 있는 곳이 오늘의 주인공인 (주)티피에스이다. 2003년 창립된 이곳은 스마트기기의 카메라 이미지센서에 장착되는 적외선 차단용 필터기판을 전문적으로 생산하는 기업이다. 갤럭시 S3 S4, 갤럭시노트2에 설치된 필터의 대부분이 이곳 제품일 정도로 업계의 반응은 매우 뜨겁다. 물론 이곳이 단순히 제품생산에만 주력하고 있다고 생각하면 오산이다. 국내 특허 등록 및 출원 21건, 국제 특허 등록 2건 등 상당한 기술력도 갖추고 있다. 특히 지난해에는 '대구스타기업'으로 선정되면서 대외적으로 성장가능성을 인정받기도 했다. 설립된 지 불과 10여 년 만에 (주)티피에스가 이처럼 괄목할만한 성장을 할 수 있었던 원동력은 무엇일까. 이곳 관계자들은 그 밑바탕에 안전이 자리잡고 있다고 입을 모아 말한다. 근로자들의 안전을 확보해 나가면서 경영활동을 한 것이 '우수한 제품'이라는 결과물로 나타났다는 것이다 안전경영의 모범을 보이고 있는 (주)티피에스를 찾아가 봤다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.05a
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• pp.503-506
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• 2015

Ever since Samsung Electronics has released its first Galaxy Note series, it has been releasing a new different Galaxy model every year and now Galaxy Note 4 has been released in 2015. The consumers' interest in 'Phablet' has been growing since the release of Galaxy Note 1, and the market share rate for Phablet, which was only about 2 % out of the entire mobile phone market in 2013, has grown to 10% within just a year. This thesis analyzed the response of consumers about the Phablet, and expected the future of the Phablet market. Consumer behavior analysis was conducted through a questionnaire.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.325-327
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• 2022

최근 스마트 기기 시장이 커지며 이와 함께 스마트 기기를 이용한 연구가 활발하다. 현재 많이 사용되는 스마트 기기인 스마트워치와 스마트폰에는 다양한 센서들이 내장되어있다. 이 센서들을 통해 생성된 데이터를 이용하면 사용자의 행동 분류, 건강관리 등 사용자에게 도움이 되는 서비스를 제공할 수 있다. 본 논문에서는 어플리케이션 개발을 통해 상용 스마트기기인 갤럭시 워치 4와 갤럭시 S10에 내장되어있는 센서의 원시데이터를 수집하고 수집한 데이터를 oneM2M 표준 플랫폼에 저장하였다. oneM2M 표준 플랫폼에 저장된 데이터는 API를 통해 손쉽게 사용할 수 있으며 여러 대의 스마트 기기 데이터를 수집하고 빅데이터를 구축한다면 많은 연구자들이 보다 편리하게 데이터를 이용하여 다양한 의미 있는 연구들을 진행할 수 있을 것이다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.33 no.6
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• pp.893-906
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• 2023

Awareness that smartphones can be used as tools for criminal activity is prevalent in many organizations, but the functionally smartphone-like smartwatch's potential as a criminal tool is being overlooked. Considering this situation, this research verifies the possibility of information leakage through an insider's smartwatch in a situation where smartphones are controlled by security regulations and technologies, but smart watch are not. By analyzing information related application usage and Wi-Fi connection generated in the smartwatch during the verification process, forensic information and limitations are identified. Finally, this research proposes preventive methods to prepare for potential smartwatch-related crimes, and reconsiders awareness of the possibility of using smartwatches as criminal tools.

• Journal of Korean Society of Forest Science
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• v.109 no.4
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• pp.484-491
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• 2020

In this study, to solve the existing inefficient stem analysis process and expensive equipment cost problems, a method for detecting and analyzing tree rings using smartphone images was proposed and a semi-automated computer program (TRIO, Tree Ring Information) was developed. TRIO can measure the annual ring radius and save the results to Excel. Since TRIO uses smartphone images, the results may vary depending on the quality of the smartphone camera. Therefore, using the Samsung Galaxy S10 and Tap 2, 30 dics images of Pinus rigida were acquired and analyzed, and these were compared with WinDENDROTM. As a result of the study, both Samsung Galaxy S10 and S2 showed significant results with WinDENDROTM, and the R2 value of S10 had a high correlation as 0.976, and RMSE was analyzed as 0.4199, and very similar results were output. The R2 value of S2 was 0.975 and the RMSE was 0.4232, showing no significant difference from S10. Accordingly, the TRIO developed in this study analyzed the annual radius value very similar to WinDENDROTM.

• Smart Media Journal
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• v.7 no.4
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• pp.99-105
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• 2018

It is often the case that products or services on the market are causing problems, which hurt the business and image of the company. Responding appropriately to the problem and minimizing the damage is very important to business organizations. This study collected and analyzed the news articles related to the recall of the Galaxy Note 7, which was developed and launched by Samsung Electronics, one of the smartphone market leaders. Based on the issue lifecycle, the characteristics of the news were expressed by stages and the contents of the news were analyzed and visualized using association rules. The results of this study are expected to help business organizations to understand the changes and trends of issues and search for counter measures.

• KIISE Transactions on Computing Practices
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• v.21 no.5
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• pp.379-386
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• 2015

We propose a novel user-perceived performance optimization framework for the Android platform that takes advantage of the user-centric response time analysis. To this end, we propose a new definition of response time, which we call the user-centric response time, as a metric for the quality of user-perceived performance of the smartphone application. In this paper, we describe the design and implementation of an on-line user-centric response time analyzer for Android-based smartphones, which provides smartphone application developers with valuable insight for user-perceived performance optimization. We implemented the user-centric response time analyzer on the Android platform, version 4.0.4 (ICS) running on a Galaxy Nexus smartphone. From our experimental results, the proposed user-centric response time analyzer accurately estimates user-centric response times with an accuracy of 92.0% compared to manually measured times with less than 1% performance penalty. In order to evaluate the efficiency of the proposed framework, we were able to reduce the user-centric response time of the target application by up to 16.4% based on the evaluation results by the proposed framework.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.16 no.2
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• pp.288-295
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• 2012

Recently personal income level is rising. So, many people use the leisure lightweight aircraft and the population which enjoys a leisure is increasing. But as the leisure lightweight aircraft compares in the civil aircraft and the military aircraft, and it has a low price. So the equipment which it is loaded in the lightweight aircraft is not equipped. In this paper, we develop the air navigation for lightweight aircraft using the smart phone(iPhone, Android phone, Window mobile, BADA phone etc.) and the smart pad(iPad, Galaxy Tab etc.).

• Korea Trade Review
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• v.42 no.5
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• pp.113-136
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• 2017

New product preannouncement through global supply chain management and international strategic alliances is a critical issue for firm's survive and gaining the competitive advantage in the global smart-phone market. To identify the impact of exploration alliance and exploitation alliance on the short-term's Firm Performance, respectively, This study implemented the event study and the cross sectional regression analysis, focusing on the case of Galaxy Note series. Research results identified that new technologies by exploration alliance and the existing technologies through exploitation alliance have a positive effect on the short-term's performance of vendors related. Furthermore, information for the new products showed higher the excess earning rate than information related to the existing technologies. This implies the firms that provides new technologies have a stronger innovative ability than the companies serving the existing technologies, recognizing as a positive signal in the market. Finally, this study implicates that new technologies by exploration alliance enhances innovative abilities from new product preannouncement, and is a critical variable that can determines whether to survive in the market.