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홍진우,Hong, Jin-Woo 한국정보통신학회 2012 한국정보통신학회논문지 Vol.16 No.6
방송과 통신의 융합에 이어 컴퓨팅이 융합되는 기술적 진화에 따라 방송과 인터넷이 연계된 스마트TV가 새로운 미디어 서비스로 부각되고 있다. 따라서, 본 논문에서는 TV와 인터넷의 결합을 기반으로 이용자 친화적인 멀티모달 휴먼 인터페이스에 의한 화면제어가 가능하고, N-스크린 기반으로 방송형, 통신형, 방송통신 융합형, 컴퓨터형 서비스를 제공하는 CPNT기반의 차세대 스마트TV(스마트TV 2.0)의 서비스 기술에 대해 제안하고, 관련 기술의 개념 및 세부 내용에 대해 기술한다. Smart TV is approaching as a new media service to integrate the broadcasting and the internet according to the technology evaluation of convergence to broadcasting, telecommunication, and computing. Therefore, This paper proposes the next generation smart TV(Smart TV 2.0) technology based on CPNT which supports those services such as the broadcasting, telecommunication, a convergence of broadcasting & communication, and computer service through multi-screen. Also, this paper describes the concept and details of the related technologies.
홍진우,Hong, J.W. 한국전자통신연구원 1995 전자통신동향분석 Vol.10 No.3
멀티미디어에서 비디오의 품질이 향상되고, 디지털 텔레비젼 (ADTV)이나 고선명 텔레비젼(HDTV) 등의 개발에 의해 화면 크기가 증가하면서 이에 어울리는 실감있는 오디오의 전송 및 재생이 요구된다. 따라서 멀티채널 오디오의 도입과 더불어 효율적이고, 경제적인 방법으로 낮은 비트율로 고품질의 멀티채널 오디오를 제공하기 위한 부호화 기술이 필요하게 된다. 최근에 인간의 청각 특성을 고려한 심리음향 모델을 이용한 멀티채널 오디오의 압축 부호화 기술이 MPEG-2 오디오의 국제 표준으로 제정되었다. MPEG-2 오디오 표준은 MPEG-1 오디오 표준을 기초로 하여 현장감을 필요로 하는 오디오를 위해 기본 스테레오 채널외에 중앙채널, 서라운드 채널, 그리고 저주파 효과채널을 부가한 방식으로 다채널, 음성다중 등의 부가서비스를 제공하기에 적합하다. 본고에서는 MPEG-2 오디오 표준의 계층 II를 중심으로 한 표준의 특징, 알고리즘, 데이터 구조, 그리고 응용분야 등에 대해 기술한다.
급성기 뇌경색 환자들의 고혈압, 당뇨, 고지혈증 인지여부에 관한 분석 : 3개 한방병원기반 전향적 자료등록 연구
홍진우,정우상,선종주,정재한,문상관,고성규,전찬용,한창호,조기호,Hong, Jin-Woo,Jung, Woo-Sang,Sun, Jong-Joo,Jung, Jae-Han,Moon, Sang-Kwan,Ko, Seong-Gyu,Chen, Chan-Yong,Han, Chang-Ho,Cho, Ki-Ho 대한한방내과학회 2007 大韓韓方內科學會誌 Vol.28 No.2
Objectives : Hypertension(HTN), diabetes mellitus(DM) and hyperlipidemia(HL) are the most common risk factors of cerebro-vascular attack(CVA). To prevent CVA, early diagnosis (awareness before CVA) of HTN, DM and HL is essential, and for the effective early diagnosis we need to analyze the data of CVA patients concerned with HTN, DM and HL. In this study, we studied characteristics of patients early diagnosed before CVA. Methods : We analyzed the data of 363 patients with acute ischemic stroke from Hanbang Stroke Registry supported by the Ministry of Science and Technology of Korea. Subjects' enrollment was done in the oriental medical hospitals of 3 universities located in the metropolitan region from October 2005 to October 2006. We analyzed all registered data about HTN. DM and HL, for example, how many patients were aware of their HTN, DM or HL before CVA, differences in characteristics of early diagnosed patients, effects of early diagnosis on CAV, etc. Results : Patients aware of their HTN. DM and HL before CVA have more past history and family history about HTN, DM or HL. Early diagnosis rate of HL is lower than HTN and DM, and early diagnosed HL patients were younger and deucated longer than patients who weren't aware of their HL before CVA. These results mean that publicity is the key to promoting early diagnosis rates of HTN, DM and HL. In DM and HL, early diagnosed patients had more SVO type cerebral infarction than patients who weren't aware of risk factors. We can thus see that early diagnosis even affects CVA types. Conclusion : This work helps us to understand the realities and importance of early diagnosis of HTN, DM and HL before CVA. There should be further research, which can contribute to much more improved early diagnosis rates of HTN, DM and HL.
홍진우,강경옥,강성훈,Hong, Jin-Woo,Kang, Kyeong-Ok,Kang, Seong-Hoon 한국음향학회 1994 韓國音響學會誌 Vol.13 No.e2
본 논문은 디지털 망에 접속된 ISDN 전화기의 전송품질인 음량정격과 송화자 에코를 설정하는 방법을 기술한다. ISDN 전화기의 바람직한 음량정격 및 송화자 에코를 설계하기 위하여 주관평가를 위한 디지털 음성통신 모델 시스템을 개발하였고, 이 모델 시스템을 이용하여 최적의 코덱 입력레벨, 전체 음량정격의 범위, 그리고 송화자 에코 등을 결정하기 위하여 오피니언 테스트를 수행하였다. 실험결과 송화 음량정격은 6~8dB, 수화음량정격은 0~2dB, 측음마스킹정격은 8~12dB로 설정되었다. 또한, 에코프리의 전화통화를 위한 단말결합손실은 전체음량정격이 10dB 일때 적어도 40dB 이상이어야 한다는 결론을 얻었다. It is the purpose of this paper to describe the methods for establishing loudness ratings and talker echo out of transmission quality of ISDN telephone connected to fully digital network. In order to design the desirable loudness ratings and talker echo for ISDN telephone, the model system of digital speech communication for subjective tests is developed. Using this model system, opinion tests which decide the optimal CODEC input level, the range of overall loudness rating, sidetone masking rating and talker echo are performed. From the results of tests, we decided that the loudness ratings are 6 to 8dB for sending, 0 to 2dB for receiving, and 8 to 12dB for sidetone masking rating. And, the terminal coupling loss of TCLw of at least 40dB is necessary to provide echo-free telephone communications to telophone users when the overall loudness rating of ISDN telephone is normalized to 10dB.
뇌경색(腦硬塞) 환자(患者)의 운동장애(運動障碍)에 대(對)한 2Hz와 120Hz 전침(電鍼) 치료(治療)의 효과(效果) 비교(比較) : 운동유발전위검사를 통한 비교
홍진우,최창민,박영민,신원준,정동원,박성욱,정우상,박정미,문상관,고창남,조기호,배형섭,김영석,Hong, Jin-Woo,Choi, Chang-Min,Park, Young-Min,Shin, Won-Jun,Jeong, Dong-Won,Park, Seong-Uk,Jung, Woo-Sang,Park, Jung-Mi,Moon, Sang-Kwan,Go, Chang-Na 대한한방내과학회 2006 大韓韓方內科學會誌 Vol.27 No.1
Objectives : Electrical acupoint stimulation(EAS) has been used to treat motor dysfunction of stroke patients with reportedly effective results. The purpose of this study is to evaluate the efficacy of the EAS with different frequencies in treating motor dysfunction of ischemic stroke patients. Methods : The subject of this study were forty-two ischemic stroke patients with motor dysfunction in Kyunghee oriental medicine hospital who were hospitalized for one week to one month from onset. They were treated with 2Hz or 120Hz EAS for two weeks, and motor evoked potentials(MEP) were measured before and after EAS treatment. To compare the effect of 2Hz EAS with 120Hz, the number of patients who showed MEP responses after two weeks among those who had no previous response was checked. Also measured were latency, central motor conduction time(CMCT), amplitude of MEP before and after EAS treatment. Results : After two weeks of treatment, 4 out of 15 patients(27%) in the 2Hz EAS group and lout of 19 patients(5%) in the 120Hz group showed potential responses. Yet there was no significant difference between the two groups. When MEP data of the affected side between the 2Hz group and the 120Hz group was compared, the former showed more significant improvement than the latter in latency, CMCT and amplitude(P=0.040, 0.019,0.021). When the proportion of the affected side and unaffected side in MEP data was examined, the 2Hz group showed improvement on only latency and CMCT with significant differences(P=0.040, 0.014). Conclusions : These results show that EAS with low frequency is more helpful for motor recovery after ischemic stroke than that with high frequency. This suggests that low frequency EAS activates the central motor conduction system better than high frequency EAS.
홍진우,오정훈,이한규,Hong, J.W.,Oh, J.H.,Lee, H.K. 한국전자통신연구원 2019 전자통신동향분석 Vol.34 No.2
Airport is shifted airport 1.0 to airport 4.0 called smart airport and services paradigm is changed into direction to point the customer targeted benefits. Smart airports make use of integrated Internet of Things components to provide added-value services. By integrating smart components, airports are being exposed to a larger attack surface and new attack vectors. Self-services such as web or mobile check-in, self check-in/tagging/back drop/boarding, etc. should be strengthened to make airport processes smarter, and technologies such as automatic immigration, smart security search, and automatic AI-based baggage search should be applied. In this paper, we describe the necessity and importance of smart airports and next generation security screening technology. Further, we describe a walk through-type smart security screening system.