• 대한인간공학회지
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• 제34권5호
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• pp.447-454
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• 2015

Objective: The purposes of this study are to survey general and ergonomics relevant patents of major foreign countries, to classify the ergonomics patents into some categories frequently found in the patents lists surfed and to compare the results with those of Korea. Background: Under today's severe competitions between countries and between companies, the intellectual property has never been more important. It is needed to investigate Korea's positions and worldwide status of patent applications and grants for general and ergonomics patents. Method: This study was mainly based on relevant websites surfing such as KIPRIS, FPO, EPO, WIPO, etc. Results: The results showed that while Korea placed fourth in patent applications and grants in 2012, following US, Japan and China, Korea ranked seventh in the number of ergonomics patents. Of the overseas ergonomics patents, the proportion of tool/device was the second highest to category of others, followed by chair/desk, grip/handle and keyboard, etc. Compared to the overseas ergonomics patents, Korea showed a slightly different trend that there were less patents for specific fields of ergonomics such as grip/handle, keyboard, tool/device, etc. Conclusion: The number of ergonomics patents of Korea was behind most foreign countries surveyed in the number of patent applications and grants of, and there were many categories of overseas ergonomics patents. Application: This study would be used as a reference or guideline when developing varying ergonomic products or applying to ergonomics patents.

• The Journal of Korean Physical Therapy
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• 제27권1호
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• pp.30-37
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• 2015

Purpose: The purpose of this study was to develop a computer access assessment tool for persons with physical disabilities and to evaluate reliability and validity. Methods: We developed a computerized Computer access Assessment Program (CAP) through many kinds of literature review and tools analysis for evaluation of computer access, task analysis of fundamental input devices operation and expert review. The CAP data were obtained from 105 normal university students and 16 students with physical disabilities. The test items of CAP are composed of four timed mouse tasks, four timed keyboard tasks, and a timed scanning task. Thus, the software measures user performance in skills needed for computer interaction, such as keyboard and pointer use, navigating through menus, and scanning. To determine the validity of these measurements, we compared data on CAP reports to a Compass report. Compass software allows an evaluator for assessment of an individual's computer input skills. Results: Results of this study showed that the CAP had high internal consistency, reliability of test-retest, concurrent validity, and convergent validity. Conclusion: Therefore, the CAP is appropriate for evaluation and determination of computer access skill of persons with physical disabilities. It is possible to get clear quantitative data on performance when providing computer access services if you can use the CAP data. Using this quantitative evidence, insights can be gained into the specific nature of any difficulties experienced by persons with physical disabilities and find wise solutions.

• 한국임상수의학회지
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• 제22권1호
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• pp.50-55
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• 2005

We investigated the contamination of animal hospital floor, beauty table, computer keyboard, exam table, operation table and forcep handle by isolations of aerobic bacteria in small animal hospitals in Gwangju. The total number of aerobic bacteria was 52 isolates and Staphylococcus spp. (38 isolates) were the predominant isolates (69.71 %) of them. The prevalent contaminated areas were floor (17 isolates), beauty table (13 isolates) and computer keyboard (9 isolates). The detection of methicillin-resistant (mecA) gene, determined by PCR, showed that 3 of the 17 coagulase-negative Staphylococcus spp. (CNS) isolates possessed the mecA gene. For evaluating the antibiotic susceptibility patterns of the isolates, disk diffusion method was used. The majority of isolates showed high susceptibility to amoxicillin (92.1 %), ceftiofur (84.2%) and polymixin B (73.7%). Also they showed the high resistant to ampicilline (66.7%), penicillin (65%) and kanamycin (56.5%). These results suggest extensive contamination of aerobic bacteria in animal hospital environment.

• 산경연구논집
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• 제5권3호
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• pp.5-14
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• 2014

Purpose - This study illustrates research product industrial engineering, which needs to be promoted to encourage knowledge intensive businesses. Research traditions related to industrial business products and a fuzzy multi criteria decision approach in technology management for product design industries have undergone continuous changes over time. However, there is no clarity on the present situation, and there is a need to reform business enterprises. Research design, data, and methodology - Using fuzzy theory and appraising multi-goal plans, the manner of promoting the competitive advantage of industrial businesses is analyzed using a case study. In the case study, various aspects are examined, such as product design and manufacture, fuzzy set decisions with multi attribute policy making, flaws in the present system, and a review of the related literature. Results - New fuzzy and multi criteria designs can improve the existing keyboard by solving product problems, resulting in a clear and durable typeface for a creative LED keyboard. Conclusion - Using a fuzzy set with multi attribute policy-making influences the achievements appraisal system and can help achieve the anticipated strategy goal of product design.

• 대한전자공학회논문지
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• 제16권4호
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• pp.1-12
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• 1979

이 논문은 "한글문자의 컴퓨터 처리 : 1. 이론 "의 후편으로서 동일 subject의 실질적, 역사적 측면을 취급한다. 논문의 전반부에서는 다음 문제들을 논한다. : 한글 입출력 터미날의 기능적 설계, 모아쓰기 algorithm과 dot matrix fonts 에 의존한 한글 character generator, 입력 keyboard, 구성(keyset 와 key-stroke수 사이의 관계), binary code 의 설계를 위해 고려되어야 할 조건 등이다. 후반부는 개인적 관점에서 본 한글문자의 컴퓨터 처리의 역사론에 할당되었다. 기록화된 업적들을 주요 내용에 따라 네그룹으로 분류하였고, 시대순으로 나열될 참고문헌들의 비판적 개론을 위해 문제점들을 하나씩 거론하였다. 입력 (문자의 컴퓨터인식)과 출력 (모아쓰기의 처리)의 문제들을 분별하여 토론하였다.

• 한국전자파학회논문지
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• 제27권11호
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• pp.1004-1011
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• 2016

본 논문에서는 개인용 유선 키보드의 한 형태인 Universal Serial Bus(USB) 키보드의 마이크로 컨트롤러 칩을 통해서 방사되는 누설 전자파를 측정하고 복원하는 방법을 제시하였다. 누설 전자파를 분석함으로써 키보드를 통해서 어떤 정보가 입력되었는지 알 수 있으므로 비밀번호 등의 개인정보 누설, 도청 등 정보 보안상의 문제가 발생한다. USB 키보드는 신호 전송 메커니즘에 따라 누설 전자파를 발생시킨다. 누설 전자파는 대수 주기 안테나와 광대역 수신기를 이용하여 측정하였고, 신호 처리 알고리즘을 이용하여 분석하였다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2018년도 추계학술대회
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• pp.101-102
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• 2018

개인용 컴퓨터 사용자들은 키보드와 마우스를 장시간 사용 시 손목에 피로를 느끼거나 질환이 생길 수 있다. 그리고 손이 불편한 지체 장애우는 키보드와 마우스를 사용해 컴퓨터를 조작하기 힘들다. 이를 해결하기 위한 키보드와 마우스 대체품은 기능이 제한되거나 가격이 비싼 문제가 있다. 이 논문에서는 아마존 에코와 아마존 웹 서비스의 람다 함수를 이용하여 음성명령으로 개인용 컴퓨터를 조작하기 위한 시스템을 구현한다. 구현한 시스템은 사용자의 음성 명령을 아마존 웹 서버에서 처리하여 개인용 컴퓨터로 전송한다. 개인용 컴퓨터는 전송 받은 명령을 처리하고 이를 이용하여 응용 프로그램을 조작한다.

• 대한인간공학회지
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• 제27권3호
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• pp.33-41
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• 2008

The goal of this study was to compare wrist posture, muscular loads and perceived comfort among wearable wrist rest (WR), general wrist rest(GR), no wrist rest(NR) during keyboard and mouse use. Thirteen subjects performed text editing task in three test conditions: wearable wrist rest(WR), general wrist rest(GR), no wrist rest(NR). During text editing task, the right wrist posture was recorded by an electrogoniometer and the muscle activity in upper trapezius, anterior deltoid, extensor digitorum, extensor carpi ulnaris were recorded by electromyography. After all of the tests, the subjects rated perceived comfort. Working with wearable wrist rest(WR), compared to no wrist rest(NR) and general wrist rest(GR), decreased wrist radial/ulnar deviation and also decreased muscle activity in upper trapezius and anterior deltoid. At the same time, in work with wearable wrist rest(WR), the subjects rated more comfort at 5 of 8 body locations(shoulder, upper arm, wrist, hand, body).

• 한국산학기술학회:학술대회논문집
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• 한국산학기술학회 2006년도 추계학술발표논문집
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• pp.216-219
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• 2006

Self management of chronic asthma is of great importance, since the disease could lead the patient into an emergent situation. In the present study, we describe design and implementation of a personal digital assistant(PDA) based asthma management system for personal application including symptom and medication to prevent from the potential exac-erbation of the disease. The software program was written by the Visual C++ tool in the mobile computing environment and Object Store was applied for data management. User friendly GUI environment was provided for the patient to input his/her daily condition and self treatment such as medication for suc-cessful management. The input screen design substituted for keyboard input to a mouse in order to easy to select an item and minimize the keyboard input. The implementation results of this system., Real-time data collection and process were possible and be able to have been carried effectively out a continuous symptom, a medication of asthma patients, risk management.

• 정보처리학회논문지:컴퓨터 및 통신 시스템
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• 제8권1호
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• pp.9-16
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• 2019

스마트폰은 휴대용 컴퓨터로서 자리매김하고 있다. 이에 따라 가장 민감한 금융 응용 서비스조차 스마트폰을 통해 언제 어디서나 사용할 수 있게 되었다. 스마트폰은 일반 PC에 비해 무선인터넷, 이동통신망을 비롯하여 블루투스, NFC 등 근거리 통신망 등 다양한 경로를 통하여 외부와 통신하고 있으며 매우 다양한 앱이 제공되고 있어 취약점이 존재할 경우, 공격의 피해가 발생할 가능성이 높아진다. 본 논문에서는 여러 가지 물리적 제약점이 있는 스마트폰의 은행앱에서 로그인에 사용되는 동적 가상키보드의 취약점에 대하여 분석하고, 그 대응방안을 제시한다.