• 제목/요약/키워드: Fax

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스마트 디지털 팩스 송·수신 서비스 시스템 (Smart Digital Fax Transmission·Reception Service System)

  • 이세훈;임소정;김수민;김현아;원진이;박전진
    • 한국컴퓨터정보학회:학술대회논문집
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    • 한국컴퓨터정보학회 2019년도 제60차 하계학술대회논문집 27권2호
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    • pp.249-250
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    • 2019
  • 사무적인 일을 문서로 송수신할 경우 팩시밀리를 이용한다. 이러한 팩시밀리는 전화선을 통해 쉽게 문서 송수신이 가능하지만 무차별한 광고 수신으로 인한 피해가 발생한다. 또한, 소규모 기업의 경우 즉각적인 팩스 확인이 불가능한 상황이 많다. 본 논문에서는 팩스 오픈 소스 SW인 HylaFAX를 기반으로 스마트 팩스 송수신 서비스 시스템을 구현하였다. 웹에서 팩스 문서 송수신이 가능하며, 수신받은 문서는 스팸 여부를 구별하여 스팸이 아닌 실제 전송된 문서를 수신한 경우에 사용자에게 알림을 준다. 또한, 수신한 문서는 클라우드에 업로드해 공유할 수 있다.

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차세대 팩스 영상처리를 위한 1-Chip Application-Specific DSP 기법 (Development of a 1-Chip Application-Specific DSP for the Next Generation FAX Image Processing)

  • 김재호;강구수;김서규;이진우;이방원;김윤수;조석팔;하성한
    • 전자공학회논문지B
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    • 제31B권4호
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    • pp.30-39
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    • 1994
  • A 1-chip high quality binarizing VLSI image processor (which has 8 bit ADC. 6 bit flash ADC, 15K standard cell, and 1K word ROM) based on 10 MIPS 16 bit DSP is implemented for FAX. This image processor(IP) performs image pre-processing. image quality improvement in copying and sending mode, and mixed image processing based on the fuzzy theory. And smoothing in sub-scan direction is applied for normal receiving mode data so the received data is enhanced like fine mode data. Each algorithm is processed with the same type of image processing window and 2-D image processing is implemented with a 1-D line buffer. The fabricated chip is applied to a FAX machine and image quality improvement is verified.

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통신서비스의 늦은 수요 확산 현상에 관한 연구 : Fax 서비스를 중심으로 (The Late Take-off Phenomenon in the Diffusion of Telecommunication Services : Focused on the Fax Markets)

  • 임병락;최문기;박명철
    • 한국경영과학회지
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    • 제27권2호
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    • pp.81-96
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    • 2002
  • Telecommunication services are distinctive in that their adoptions are influenced by network effect resulting in 'the late take-off phenomenon' and the 'critical mass' problem. In this paper we examined, so called, 'the late take-off phenomenon' in the diffusion process of telecommunication services. We compared the parameters of the diffusion process of consumer durables with those of fax services in the US and Korea. By analyzing the parameters of a new diffusion model based on the threshold model proposed by Markus, we found that 'the late take-off phenomenon' resulted from the low heterogeneity of the threshold distribution for the potential adopters. A simulation approach was proposed for the theoretical implication of the 'critical mass' problem in the start-up telecommunications services.

Observers for linear descriptor systems with unmeasurable disturbances

  • Kawaji, Shigeyasu;Kim, Hwan-Seong
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1995년도 Proceedings of the Korea Automation Control Conference, 10th (KACC); Seoul, Korea; 23-25 Oct. 1995
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    • pp.492-495
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    • 1995
  • A simple method to design observers for linear describtor systems with unmeasureable disturbance is represented by the response of a linear free system. The sufficient conditions for the existence of the observer are given. The design procedures of an identify and a minimal order observers are shown, respectively.

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Performance Evaluation of the JPEG DCT-based Progressive and Hierarchical Codings for Medical Image Communication

  • 안창범;이종수
    • 대한의용생체공학회:학술대회논문집
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    • 대한의용생체공학회 1991년도 추계학술대회
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    • pp.48-53
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    • 1991
  • The discrete cosine transform (DCT)-based progressive and hierarchical coding schemes developed by the International Standardization Organization (ISO) Joint Photographic Experts Groups (JPEG) are implemented and evaluated for the application of medical image communication. For a series of head sections of magnetic resonance images, a compression ratio of about 10 is obtained by the algorithm without noticeable image degradation.

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