• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2002.11a
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• pp.652-655
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• 2002

The next generation Internet Protocol IPv6 that is appeared to solve the exhausting problem is now widely deployed in a testbed or commercial site. To successfully deploy IPv6, interoperation with exist IPv4 hosts and routers and interactions with many IPv4 applications are more important. The NAT-PT (Network Address Translation-Protocol Translation) among IPv6 transition mechanism enables the communication between IPv4 and IPv6 host with translating IPv4 address and IPv6 address. But for DNS and FTP, another specific mechanism is needed when internet address is included in packet payload area. This paper describes the design and implementation of IPv6-support FTP-ALG, (Application Layer Gateway) to enable FTP service between IPv4 node and IPv6 node.

• Proceedings of the Korean Information Science Society Conference
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• 1998.10a
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• pp.600-602
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• 1998

RFC 959 정의한 FTP 의 세가진 전송모드, Stream, Block, Compressed전송 모드 중 현재 주로 사용되고 있는 전송 모드는 Stream 전송모드인데. 이 Stream전송모드에서 서버 또는 네트웍에 치명？인 오류 발생하였을 경우 이를 체크 할 수 없고 서버에 재접속하였을 겨우 처음부터 재전송 하영햐 하는 문제점이 발생한다. 이를 개선한 Block, Compressed전송 모드의 경우, 데이터 스트림에 정보 헤더를 추가하여야 함으로써 오버 헤드를 발생한다. 본 논문에서는 클라이언트 FTP상에서 전송 상태를 체크하게 함으로서 전송 중단시 중단된 시점부터 나머지 데이터를 보냄으로써 FTP의 스트림 전송 모드의 문제점을 개선하는 방법을 제시한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2011.01a
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• pp.167-169
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• 2011

정보화 시대는 파일관리가 매우 중요하다. 제한된 메모리에서 많은 업무를 함에 따라 사용자들은 메모리 부족현상을 늘 겪는다. 이런 메모리 부족환경으로 인하여 사용자들은 보다 효율적이고 사용하기 편한 관리방법을 찾는다. 본 논문에서는 스마트 폰(smart phone)을 이용하여서 FTP Server에 접속하여 메모리를 효율적으로 관리할 수 있는 프로그램을 구현한다. 구현된 프로그램은 고정 IP를 통해 서버에 접속하고 사용자 아이디와 비밀번호를 지정하므로써, 지정된 사용자만 사용 할 수 있게 하였다. 이 FTP Client 프로그램은 체크된 파일을 전송 할 수 있게 해주고 이름변경, 삭제, 경로 변경 같은 세부기능을 가지고 있다. 구현된 프로그램 사용은 사용자들에게 스마트 폰의 메모리를 보다 효율적으로 관리할 수 있도록 하는 기능이 가능하도록 서비스를 제공한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2019.05a
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• pp.197-200
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• 2019

File Transfer Protocol (FTP) is a protocol for transferring files between computers, FTPS with TLS, and SFTP based on similar SSH. The keynote to apply one-time password (OTP) has been diffused to resolve identity and password theft cases. In this paper, it has been confirmed that both data transmission and identity authentication using OTP at TLS level are possible without significant change in user client.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.4 no.3
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• pp.150-154
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• 2003

This paper designs the secure FTP model which provides origin non-repudiation and receipt non-repudiation service that sender and recipient profit of each other to prevent the repudiated of transmission of message and which provides the delivery non-repudiation service to prevent the repudiated of file reception and fact of the transmission failure of an error from the network. The FTP model which is designed to use the GSS-API and in order to have compatibility from source level, with security service it provided the interface which is consistent, establishes the secure context which application client and application server for is safe the session key which overhead from opening to the public key system with efficient key use and it used it minimized.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.11 no.6
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• pp.742-750
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• 2018

In this paper, in order to enable zero-layer FTP cell using only 5V MOS devices on the basis of $0.13{\mu}m$ BCD process, the tunnel oxide thickness is used as the gate oxide thickness of $125{\AA}$ of the 5V MOS device at 82A. The HDNW layer, which is the default in the BCD process, is used. Thus, the proposed zero layer FTP cell does not require the addition of tunnel oxide and DNW mask. Also, from the viewpoint of memory IP design, a single memory structure which is used only for trimming analog circuit of PMIC chip is used instead of the dual memory structure dividing into designer memory area and user memory area. The start-up circuit of the BGR (Bandgap Reference Voltage) generator circuit is designed to operate in the voltage range of 1.8V to 5.5V. On the other hand, when the 64-bit FTP memory IP is powered on, the internal read signal is designed to maintain the initial read data at 00H. The layout size of the 64-bit FTP IP designed using the $0.13-{\mu}m$ Magnachip process .is $485.21{\mu}m{\times}440.665{\mu}m$($=0.214mm^2$).

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.6
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• pp.1485-1492
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• 2015

This paper proposes a double frequency method using FTP(Fourier Transform Profilometry) in fringe projection techniques for 3D measurement systems. In fringe projection techniques, fringe pattern images are projected and captured, and then object is measured by analysing phase. PMP(Phase Measuring Profilometry) for analysing phase provides high-resolution and is robust to object's reflection and background intensities. However, the measurement range is narrow due to 2π ambiguity. In order to overcome this problem, a double frequency method is often used. This method can widen the range of measurement while maintaining the high-resolution, but the measurement time is taken about twice due to grab 2 times number of images. The proposed double frequency method using FTP requires an additional image for resolving 2π ambiguity. The proposed method effectively reduces the measurement time while maintaining the same accuracy.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.27 no.1C
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• pp.90-95
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• 2002

Though the FTP(File Transfer Protocol) has been used widely and stable, It has the structural weakness that can't support current file transmissions so that we have to wait the completion of previous file transmission when try to transmit another file. If try to transmit multiple files concurrently using this FTP, It has to forking multiple FTP servers and clients in each user's PC and ISP's host machine it would result in the waist of memory, resource of network and the high workload of system. In order to solving previous problem, in this paper I have designed the new model of FTP which based on multi-thread and created NFTP(Next-Generation FTP)protocol so that may reduce the workload of system and support current file transmission effectively. I have implemented NFTP and also applied to real service, as a result It have provided reliable service by reducing the workload of system and saved the waiting time which would happened.

• Journal of ILASS-Korea
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• v.16 no.2
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• pp.76-81
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• 2011

A fuel injection system which is operated with a real vehicle driving simulation was developed as an alternative to a vehicle test for the fuel injectors. The sensor signals that are supplied to the ECU were measured and recorded as a data file for a vehicle driven in FTP-75 mode in a chassis dynamometer. The imperative sensor signals of the throttle position, vehicle speed, engine speed, crank position, cam position, intake air flow, and cooling water and intake air temperature were reconstructed using FPGA DAQ boards and a PXI computer. The scanning results showed good agreement with the input signals that were reconstructed. The ECU HILS system operated successfully to drive six fuel injectors, which injected fuel in the same pattern as if they were mounted in the vehicle driven in FTP-75 mode. Also, the fuel injection system developed in this research shows the possibility of application in evaluating the characteristics of fuel injection rate for injectors according to properties of injected fuel with the real driving mode of vehicles.

• The Journal of the Korea institute of electronic communication sciences
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• v.13 no.5
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• pp.1079-1084
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• 2018

The vehicle's black box is not suitable for bicycle black box because they contain sensors that are not suitable for bicycle black box. Therefore, this study implemented a system for viewing a video with a mobile phone as the slope changes. The angle was measured by using the gyro sensor and this angle was saved based on the angle setting on the raspberry pi. It has developed a system that allows users to download saved video files through mobile phone applications via FTP.