• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.7 no.2
• /
• pp.55-72
• /
• 1997

This paper presents a digital signature scheme for facsimile document which directly embeds a signature onto the document. We use multiple reference lines which have been scanned just before and modify each distance of changing pels both on the reference line specified by key and on the coding line with a single bit of the signature data. The time to take in signature is reduced by spreading of signature. Non-repudiation in origin, the 3rd condition of digital signature is realized by proposed digital signature scheme. The transmitter embeds the signature secretly and transfers it, and the receiver makes a check of any forgery on the signature and the document. This scheme is compatible with the ITU-T.4(CCITT G3 or G4 facsimile standards). The total amount of data transmitted and the image quality are about the same to that of the original document, and thus a third party notices that no signature is embedded on the document.

• 정보화사회
• /
• s.113
• /
• pp.10-15
• /
• 1997

전자상거래란 '기업과 기업간 거래관계의 모든 측면에서 걸쳐 전자적으로 비지니스를 행하는 것'이라고 정의할 수 있으며, 이는 정형화된 전자문서를 주고 받는 전자문서(EDI), 전자우편(E-Mail), Fax, Bar-Code, 전자자금이체(EFT:Electronic Funds Transfer), 화일전송, 전자정보서비스(디렉토리, 카탈로그, 시장통계, 기술적인 문서 등 데이터베이스 서비스), 음성사서함, 이미지 시스템, 비디오 메세징 등 그 종류와 형태가 다양하다.

• 전기의세계
• /
• v.53 no.5
• /
• pp.26-33
• /
• 2004

인간은 시계를 발명하여 스스로를 24시간 안에 묶어 놓았다. 일과표에는 항상 "몇 시 몇 분" 이런 식으로 정해진 시간에 해야 할 일을 적어 놓았다. 시계를 이용해서 인간은 주어진 시간을 효율적으로 활용하는 방법을 배웠다 그렇다면 공간 세계에서의 인간은 어떠한가\ulcorner 예전에는 서로가 모르는 장소에서 약속을 정할 때, 지도책을 찾거나 업소의 전단지에 표시된 약도를 Fax로 보내어 장소를 알렸다.(중략)

• Journal of Korea Technology Innovation Society
• /
• v.6 no.1
• /
• pp.125-136
• /
• 2003

This paper studies directions for technology information service on Korea material & component industry which is a main course for the deficit of balance of payments in Korea. We have got survey results through e-mail or fax, for the degree of the necessity of the service and the contents for the service. Finally, we will recommend the check point for the service, and for the policy.

• The Optical Journal
• /
• s.122
• /
• pp.20-21
• /
• 2009

본 통계는 2002년 1월부터 디아조(Diazo) 광디스크 파일링, 타이프 라이터, 2005년 1월부터 서류분쇄기(Shredder), 타임레코더(Time recorder)가 생산 통계에서 제외되었기 때문에 전체의 숫자에는 포함되어 있지 않다. 지면 사정상 오프셋인쇄기(생산수 출입)과 워드프로세서(수출입)의 표는 생략했지만, 사무기 전체의 숫자에는 포함되어 있다. 그리고 2007년부터 회계기(수출입)가 통계에서 제외되어 전체 숫자에는 들어있지 않다. 한편, 2007년 1월 통계부터 수출입의 복사기 카테고리가 변경되어, 지금까지 계산하지 않았던 레이저복합기(FAX, 프린터, 스캐너 기능을 탑재한 기종)를 통계에 넣었기 때문에 숫자가 종전보다 늘어났으며 정전간접식, 기타 분류는 없어졌다.

• Journal of the Korean Society of Costume
• /
• v.35
• /
• pp.151-166
• /
• 1997

Firms' utilization of internet is completely changing their business environment. Apparel firms' without exception are using internet as their essential marketing mechanism and as a new media for educating customers. Some apparel firms' at the same time acquire valuable customer information from internet users. These business cases become evident in developed countries. in contrast most domestic appstrl firms' are unable to see the strategic importance of internet. Accordingly their level of internet utilization remains quite low. This paper describes apparel firms' use of internet as electronic commerce mechanism based on cases of pioneering apparel firms' which adopted internet technologies in the first place. We further discuss problems that these

• Journal of the Korean Operations Research and Management Science Society
• /
• v.23 no.4
• /
• pp.225-234
• /
• 1998

little attention has been given to the analysis of electronic democracy media, although electronic democracy, if adopted in Korea, is expected to enhance the quality of the political culture to a large extent. This research is to compare electronic democracy media, such as Internet, cable TV, teleconferencing, fax, and ARS and suggest recommendations on the successful Introduction strategy of electronic democracy in Korea. The analysis of collected data yields research findings, such as the fact that internet will be the most effective medium and a strategy for popularizing internet needes to be developed in advance.

• Proceedings of the Zoological Society Korea Conference
• /
• 2001.10a
• /
• pp.247.1-247
• /
• 2001

No Abstract, See Full Text

• Journal of the Korean Data and Information Science Society
• /
• v.14 no.3
• /
• pp.525-533
• /
• 2003

In this paper we introduce some existing preprocessing algorithm for character recognition and consider feature extraction method for the recognition of low resolution document. Image recognition of low resolution document including fax images can be frequently misclassified due to the blurring effect, slope effect, noise and so on. In order to overcome these difficulties in the character recognition we considered a mesh feature extraction and contour direction code feature. System for automatic character recognition were suggested.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2003.10a
• /
• pp.880-883
• /
• 2003

In case user uses e-mail, SIP, internet FAX etc., the user has many addresses as many as services. ENUM is attracting interests because ENUM can provide URI addresses with a telephone number. This paper describes design of SIP function for supporting ENUM services.