• Information Systems Review
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• v.21 no.4
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• pp.197-220
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• 2019

This study aims to identify consumer motivations of open innovation project participation from digital transformation perspective. By extending a traditional intrinsic/extrinsic motivation framework, we propose a three-dimensional perspective of the self-driven, firm-driven, and sociality-driven motivations. This reveals the significance of the social effects of open innovation projects as an example of digital transformation by categorizing the motivations based on the 'influencer' of the motivation building and by highlighting the importance of sociality as an influencer. As a result, self-efficacy is identified as a key motivation when the influencer exists internally. Economic incentive and firm reputation are identified when the influencer exists externally. Finally, competition, peer evaluation and social contributions are identified when the influencer exists socially. The role of knowledge type sought through innovation projects is further introduced to explain its moderating effects on motivations. The study is validated in two steps. First, we investigate four cases of open innovation projects and examine what motivations are highlighted in each context. Second, we collect survey data from 203 online game users and ask them on their motivations. The results confirm most of our hypotheses and highlight the significance of sociality in the knowledge-seeking process in open innovation projects. This study largely contributes to digital transformation literature by extending the view of motivation and examining the moderating role of knowledge involved in the projects.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.12 no.6
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• pp.37-43
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• 2013

In this paper, an UWB (Ultra Wide Band) band-pass filter with open stubs using SIR (Stepped Impedance Resonator) structure is presented. The proposed band pass filter (BPF) has SIR structure instead of open stubs for UWB application with low insertion loss. The bandwidth of the proposed BPF is 103 % at the center frequency of 5.8GHz and the insertion and return losses are 0.17dB and 13.1dB, respectively. Also, the entire size of the proposed band-pass filter is $21.6{\times}17.8mm^2$.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2014.11a
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• pp.45-48
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• 2014

최근 국내외에서 모든 사물이 인터넷에 연결되는 초(超)연결혁명이 진행 중이며, 앞으로 사물인터넷 기반의 다양한 혁신과 사업기회가 창출될 것으로 전망되고 있다. 하지만 국내의 경우 세계 최고 수준의 광대역 방송통신 인프라 및 IoT 기기 제조역량 등을 갖추고 있으나, 표준 기반의 개방형 IoT 플랫폼의 부재로 국내 기업의 시장 진입이 어려운 상황이다. 대기업은 개별적으로 플랫폼을 개발중이나 글로벌 시장에 대한 주도력이 부족하고, 중소기업은 플랫폼 부재로 시장진입이 어려워 향후 스마트 폰 산업에 이어 IoT 산업마저 글로벌 기업에 종속될 우려가 있다. 이에 본 논문에서는 국내외 다양한 분야의 기업들이 참여하여 다양한 홈 IoT 제품과 서비스를 개발할 수 있도록 특정 플랫폼이나 솔루션에 제약 없이 다양한 IoT 기기를 연결, 제어가 가능한 표준 기반의 개방형 홈 IoT 서비스 제공 방안을 연구하였다. 실험 결과에서는 제안된 개방형 홈 IoT 플랫폼을 통해 Z-Wave, IP, ZigBee, IrDA 등 다양한 통신 방식을 사용하는 홈 IoT 기기를 제어하고 정보 수집하여 사용이 가능함을 보여주었고, 이를 기반으로 플랫폼을 빅데이터 기술 및 기계학습 기능을 추가적으로 고도화하면 다양한 사물로부터 수집된 정보와 방송 정보, 웹 정보 등을 융합한 서비스 제공 등 소비자 중심의 창의적인 신규 방송통신 융합서비스 제공이 가능할 것으로 기대가 된다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.22 no.11
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• pp.2498-2511
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• 1997

Due to the recent advances in computer technologies and high-speed networks, telecommunication services and provision of multimedia services will be considered a new software architecture adapting networking infrastructure on information networking architecture. In this paper, the video conference services has been selected as a target service example because it is expected to become one of the most important services on the full service network. In fact, it can be viewed as the basis for providing telecommunication services such as video telephony and video conferencing. This paepr presents the prototyping of TINA(Telecommunication Information Networking Architecture) based desktop video conference system using the concepts of session management. The prototyping of deskop video conference system aims at assessing TINA concepts and refinement of the mapping between session graph and connection graph, and provides support of open service platform towards distribution and objected-orientation.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.17 no.1 s.104
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• pp.17-23
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• 2006

This paper has presented a low phase noise oscillator using a square open loop with microstrip structure. A square open loop resonator has a large coupling coefficient value, which makes a high Q value, and has reduced phase noise. This oscillator has presented the oscillation frequency of 5.84 GHz, harmonics of -15.83 dBc and the phase noise of -111.17 dBc/Hz at the offset frequency of 100 kHz. In conclusion, the proposal structure has improved phase noise of 15 dB at the offset frequency of 100 kHz compared with the conventional structure of oscillator.

• The Journal of the Korea institute of electronic communication sciences
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• v.11 no.5
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• pp.485-490
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• 2016

The era of IoT in which all objects are intelligent and are connected to the internet has been started. In order to establish and activate an IoT eco system, open IoT services platform is very important. In this paper, we develop an open IoT services platform and verified the function by building a testbed. Our platform based on the open source hardware and commercial cloud services such as AWS which is a component of an open service IoT platform.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2007.10a
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• pp.929-932
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• 2007

The integrated prevention of disaster management system is collected prevention of disaster data from prevention of disaster relation other systems and smart sensor in USN. This system manages fire fighting facility effectively. The relation equipment which is used in existing and network using "Open Protocols" about under using the support system which is integrated effectively as the destroyer. It connects CCTV, the sensitivity environmental sensor, automatic fire detection equipment and security equipment and air flow equipment system using Internet. The System Server was collected monitoring data at the each equipment and processing by operational scenario. It will verified the effectiveness of operational scenario and integrated prevention of disaster management system

• Journal of Korean Society for Geospatial Information Science
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• v.17 no.4
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• pp.3-11
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• 2009

Open source is recently much more made and distributed by on-line such as internet in various fields. Therefore, end users could rapidly develop applications needed for some purposes using minimal efforts if use open sources. But, open source must be customized for their purposes. In this paper, we developed software for coordinates conversion and compared the software with NGI Pro which is developed by National Geographic Information Institute. Consequently, it is possible for us to easily develop the coordinates conversion module and we know that the use of open source is effective to develop various applications.

• The Magazine of the IEIE
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• v.29 no.11
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• pp.1333-1342
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• 2002

최근 들어 컴퓨터 통신의 확산과 함께 인터넷의 사용이 전 세계적으로 급증함에 따라 인터넷의 용도는 지금까지의 학술 및 연구를 대상으로한 정보 공유의 목적에서 인터넷을 마케팅의 대상으로 보고 이를 상업적으로 이용하려는 시도가 증가하고 있다. 이미 선진 외국의 경우에는 Mon-dex, Visa cash, Proton 등의 다양한 전자화폐 상품이 개발되어 사용되고 있으나 국제 호환성의 측면에서는 아직 미미한 형편이며 국제간 통용이 가능한 개방형 전자화폐 시스템 개발은 매우 필요하다. 소액지불 시스템의 국제 표준규격으로 인정받고 있는 CEPS(Common Electronic Purse Specification) 기반의 개방형 전자화폐 teem 시스템은 EMV(Europay, Master, Visa) 규격을 준용하고, PKI 기반의 보안기능을 채택하여 지불거래시 반드시 확보되어야 할 거래 데이타의 비밀성, 무결성, 부인방지 기능과 PIN(Personal Identification Number)를 이용한 사용자 인증을 제공하며 구매거래시 IC카드와 가맹점의 구매 단말기(POS)와의 오프라인 동적데이타 인증 (Dynamic Data Authentication) 방식의 상호인증을 제공한다. 개방형 전자화폐 teem 시스템의 구성 모듈은 발급, 충전, 구매, 정산, 인증시스템으로 구성되어 있으며, 웹기반의 사용자 인터페이스를 제공하고 DES, 3-DES, SHA-1, RSA, SEED등 다양한 암호 모듈과 다양한 어플리케이션의 탐재가 가능한 Java Card를 기반으로 하고 있으며, VOP(Visa Open Platform) 2.0,1, Java Card API 2.1 지원하는 시스템이다.

• Journal of Digital Convergence
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• v.8 no.2
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• pp.29-42
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• 2010

To improve the performance of R&D investments, government has taken great efforts for advancing the structure and process in R&D systems. However, due to the drastic internal/external changes in the technological environment and the steady increase of investment scale, the necessity for a innovative approach which accomplishes returns to scale through the utilization of various external resources is emerging. In this regard, open innovation approach can minimize the possibility of government failures by strengthening the absorptive capacity of external resources and enhancing the cooperation and participation of diverse innovative participants within the R&D system. This paper evaluates the previous researches and government policies concerning the performances of government R&D investments, and presents the connectivity between open innovation and its possible contribution to the improvement of R&D investment performances.