• Proceedings of the IEEK Conference
• /
• 2000.06e
• /
• pp.113-116
• /
• 2000

In this paper presents the portable wireless ECG data detection and diagnosis system based on discreet wavelet transform. An algorithm based on wavelet transform suitable for real time implementation has been developed in order to detect ECG characteristics. In particular, QRS complex, S and T waves may be distinguished form noise, baseline drift or artifacts. Proposed telemetry system that a transmitting media using radio frequency(RF) for the middle range measurement of the physiological signals and receiving media using optical for electromagnetic interference problem. A standard hi-directional serial communication interface between the telemetry system and a personal computer or laptop, allows read-time controlling, diagnosing and monitoring of system. A portable telemetry system within a size. of 65${\times}$125${\times}$45mm consists of three parts: a digital signal processing part for physiological signal detect or diagnose, RF transmitter for data transfer and a optical receiver for command receive. Advantages of proposed telemetry system is wireless middle range(50m) FM transmission, reduce electromagnetic interference to a minimum. which enables a comfortable diagnosis system at home.

• Proceedings of the KIEE Conference
• /
• 2008.07a
• /
• pp.1907-1908
• /
• 2008

본 논문에서는 개인화 내비게이션 기능을 제공하는 3D 가상 국악 전시관을 제안하였다. 제안된 가상 국악 전시관은 키보드와 조이스틱, 마우스 등 입력장치를 이용하여 사용자의 조작으로 이동 가능하며, 해당 국악기의 설명을 한국어와 영어로 들을 수 있다. 또한, 모든 국악기에 대한 소리를 들을 수 있고, 형태와 연주 기법을 3D로 볼 수 있으며, 해당 악기의 연주 동영상을 시청할 수 있다. 가상 국악 콘텐츠는 7개의 악기와 상세설명, 그리고 한 개의 시청각 실을 포함한다. 또한, Virtools와 자바스크립트를 이용하여 사용자 개인이 원하는 정보만을 가상으로 체험할 수 있는 개인화 내비게이션 기능을 구현하여 제공한다.

• The Journal of Information Systems
• /
• v.15 no.2
• /
• pp.31-47
• /
• 2006

The Internet has been developed interactive media for electronic commerce. This progress is affected by the growth and adoption of virtual community technology, real time dialogue, and video conference etc. Recently, 'blogs' are rapidly diffusing to personal media on the internet. In this paper, we first review the previous research relevant to 'blogs', and then analyze the business models for blog systems presented by previous researchers. We develop a yard-sale shopping mall on the basis of analysis, design, and implementation of blog application for e-commerce, using Mcrosoft ASP.Net. This article describes the yard-sale shopping mall on a blog, presents an example of its abilities, and describes planned future research.

• 제어로봇시스템학회:학술대회논문집
• /
• 2000.10a
• /
• pp.347-347
• /
• 2000

Nowadays, the Laser image is used to realize multi-media show for events, an advertising media and 3D simulation, realization of video image and so on. It is a hot issue to realize the laser image like computer graphic image. The image used in laser projector is vector graphic image that is described by linking point to point. A computer makes this continuous vector graphic images so that the image shows as an animation. A control signal converted by a computer makes the laser projector draw image. Two motors and universal joint are used to realize 2D laser image in this study. Developing a controller applied Look-ahead algorithm and software to interface with personal computer, This study is the chief aim of improving difference of moving velocity that is appeared from edge of vector graphic image and disparity of graphic density.

• Proceedings of the Korean Information Science Society Conference
• /
• 2011.06d
• /
• pp.44-47
• /
• 2011

본 연구는 스마트폰 사용자들의 개인정보유출 경로와 스마트폰과 PC에서 동기화가 이뤄질 때 개인정보 유출 방지에 관하여 기술한다. 스마트폰에서 노트북이나 데스크탑 PC로 동기화시킨 후 로컬 컴퓨터 내에 남아있는 스마트폰 사용자의 모든 정보는 침입자들의 정보라고 하여도 과언이 아니다. 특히 스마트폰 사용자의 PC가 DDos에 감염된 좀비 PC라면 스마트폰 사용자의 취약성은 더욱 더 높아질 것이다. 최근 OTP카드의 프로그램을 만드는 최고 보안등급을 가진 RSA사 조차도 해킹을 당했다고 한다. 스마트폰 사용자들의 개인정보는 더욱 취약하다는 것을 반증하는 것이다. 본 연구에서는 개인정보 유출을 막기위해 동기화 후 PC에 남아있는 데이터를 처리하는 방법을 제안한다.

• Smart Media Journal
• /
• v.2 no.3
• /
• pp.54-61
• /
• 2013

NFC is a Near Field wireless Communication technology, comes to the fore as an important technology of Mobile Payment System with supply of devices and diffusion of services. Because of the fact that the NFC retail payment services, ticketing, smart cards are able to operate in one device, it(NFC Technology) can make disclosure of personal information and security risks. Thus, the problem of security in NFC technology is essential, and the need for research on security threats are increasing. In this paper, we wil analyze for NFC's vulnerabilities and security technology.

• Journal of Digital Contents Society
• /
• v.7 no.3
• /
• pp.133-137
• /
• 2006

The advent of multimedia as the new media was caused popularization of personal computer and evolution of technology. The age of multimedia instigated the coming of new paradigm. The computer have been changed reality as a human culture to simulation culture. And it have been developed as a connector between real world and cyber space. As a result, a man who have used a computer has a possibility of danger of immersion or addiction. Therefore we must have the media competence.

• Journal of the Semiconductor & Display Technology
• /
• v.6 no.1 s.18
• /
• pp.49-52
• /
• 2007

The recent advances in digital imaging and computing technology have resulted in a rapid accumulation of digital media in the personal computing and entertainment industry. In addition, large collections of such data already exist in many scientific application domains such as the geographic information systems (GIS), digital library, trademark imaging, satellite imaging and medical imaging. Thus, the need for content-based retrieval from visual media, such as image and video data, is ever increasing rapidly in many applications.

• Proceedings of the KIEE Conference
• /
• 2000.07d
• /
• pp.2747-2749
• /
• 2000

The KEPRI has been developing the medium/small scale Distribution Automation System(DAS) that adopts wireless transmission media for exchanging information between master and remote terminals. It was concluded that Short Message Service(SMS) of Personal Communication Service(PCS) was the best wireless transmission media for the medium/small scale DAS in the last year. However. we had problem that PCS had long transmission delay. Therefore. SMS phones will be substituted with Radio Link Protocol(RLP) modems having transmission delay less than 5 seconds. This paper describes wireless networks for DAS, practical experience.

• Proceedings of the KIEE Conference
• /
• 2007.10a
• /
• pp.375-376
• /
• 2007

본 논문의 목표는 지상파, 케이블 방송을 유무선 인터넷을 통해 개인에게 직접 재전송 해 주는 플랫폼을 개발하는 것이다. 최근의 IPTV가 방송과 통신분야에서 주목을 받고 있으나 아직 활성화 되지 않은 상태이고, 시청자들은 기존 지상파, 케이블 방송을 인터넷을 통해 시청하기를 원하고 있다. 본 논문에서는 이와 같은 요구를 충족시키고자 개인형 방송 유무선 전송 솔루션을 위한 플랫폼을 개발했다. 플랫폼은 MTPS CORE와 MPEG-4 Encoder를 사용하여 실시간으로 방송 컨텐츠를 인코딩하여 RTP, RTSP Protocol을 이용하여 유무선으로 전송하게 된다. 운영체제는 Linux 2.6이고 Streaming Server는 실시간으로 네트워크 상황을 인지하여 다이나믹하게 전송 레이트를 조절함으로써 QoS를 구현하고 있다.