• Proceedings of the IEEK Conference
• /
• 2000.06a
• /
• pp.73-76
• /
• 2000

In tendency of digitalization, we studied about the purpose of digital modem for MRI spectrometer and advantage of digital modem compared with analog one. We introduce requirements lot designing transmitter of high speed digital modem for MRl spectrometer We also introduce its top-level and mid-level architecture. The transmitter is composed of CPC-P interface block, DUC & DAC block, RF block, master clock generation block, MCU block. Especially, DUC and its control parts are studied in detail. DUC and DAC can operate up to 52MHz and 100Msps, respectively. However we uses 35MHz as master clock and this paper shows its validity through simulations.

• JSTS:Journal of Semiconductor Technology and Science
• /
• v.15 no.2
• /
• pp.177-183
• /
• 2015

A high speed VLSI digital Winner-Take-All (WTA) circuit called simultaneous digital WTA (SDWTA) circuit is presented in this paper. A minimized comparison-cell (w-cell) is developed to reduce the size and to achieve high-speed. The w-cell which is suitable for VLSI implementation consists of only four transistors. With a minimized comparison-cell structure SDWTA can compare thousands of data simultaneously. SDWTA is scalable with O(mlog n) time-complexity for n of m-bit data. According to simulations, it takes 16.5 ns with $1.2V-0.13{\mu}m$ process technology in finding a winner among 1024 of 16-bit data.

• Proceedings of the KIEE Conference
• /
• 2001.07a
• /
• pp.237-239
• /
• 2001

This paper describes the digital relay simulator system using digital signal processor. The simulator system has two parts, one is software and the other is hardware part. The simulation software has variety calculation engines ; EMTP simulation data file conversion, user define simulation data generation, sequence data generation, data analysis engines. etc, these are designed upon GUI. And simulator software provides easy control interface for users, the simulator software performs on every MS Windows OS. The simulator hardware design uses 32bit floating point DSP(TMS320C32) architecture to achieve flexibility and high speed operation.

• ETRI Journal
• /
• v.34 no.2
• /
• pp.256-259
• /
• 2012

The double-base number system has been used in digital signal processing systems for over a decade because of its fast inner product operation and low hardware complexity. This letter proposes an innovative multiplier architecture using hybrid operands. The multiplier can easily be linked to flash analog-to-digital converters or digital systems through a double-base number encoder (DBNE) for realtime signal processing. The design of the DBNE and the multiplier enable faster digital signal processing and require less hardware resources compared to the binary processing method.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.33 no.5C
• /
• pp.378-385
• /
• 2008

This paper has been designed with CMOS Analog-to-Digital Converter(ADC) to use a high speed embedded system. It used flash ADC with a voltage estimator and comparator for background developed autozeroing. The speed of this architecture is almost similar to conventional flash ADC but the die size are lower due to reduced numbers of comparators and associated circuity. This ADC is implemented in a $0.25{\mu}m$ pure digital CMOS technology.

• Journal of the Korean Society for Library and Information Science
• /
• v.38 no.1
• /
• pp.13-34
• /
• 2004

The Reference Model for an Open Archival Information system(OAIS) was recommended for developing digital archives effectively and for implementing interoperability and resource sharing between digital archives. But as the Reference Model is high-level recommendation, it does not specify a design and an implementation. Therefore, this study investigates the architecture of several digital archives, suggestes three strategies for persistent archive, and proposes the conceptual model for developing trusted, persistent, and secure digital archive.

• Korean Institute of Interior Design Journal
• /
• v.26 no.3
• /
• pp.34-44
• /
• 2017

Korean-Japanese architect Itami Jun that proceeded with primeval architecture based on analogue ideas in the digital era realizing nomad architecture is delivering a totally different meaning in the modern time. Not like the Japanese architectural community equipped with rich technologies showed state-of-the-art architecture after 1980s, Itami Jun' formative consciousness intending to assimilate nature from the original position of things is thought to have started from the relationship with Korean-Japanese painters leading MONO-HA desiring to look at the world as it is and approach the source of existence. The purpose of this study is to analyze the spatial characteristics from the viewpoint of 'Theory of Meeting' which is the essence of the work theory of Lee UFan that made the theoretical foundation of MONO-HA to understand Itami Jun's architectural space in the ideological aspect. Although the characteristics of marginal men appearing in Itami Jun's architectural space as others located on the boundary between Korea and Japan, art and architecture, and functions are valuable research objects, they have not been studied in the aspect of source, so it is needed to research his works and the source of the spatial ideas that led his works. Based on Theory of Meeting claiming that the world becomes the place of experience by the medium of objet which is the structure of meeting, and that human beings can meet the truly opened world by self-awareness through body, the expressive characteristics of Itami Jun's interior space was analyzed. As a result of the analysis, it turned out that Itami Jun's interior space actively expressed Theory of Meeting on the unity of structure and space, and on the trans-boundary by the medium of objet. Conclusively, this study suggests that, in the reality of the modern interior design full of technology-intensive designs, analogue approach moving in the opposite way from technologies could be a better expressive method of design delivering the fundamental human emotions.

• The Journal of the Korea Contents Association
• /
• v.8 no.5
• /
• pp.145-154
• /
• 2008

Minimalism, which started with the subtle distinction between the end of modernism and beginning of post-modernism, was not limited to the fine arts but also spread through architecture, fashion, and the rest of the design industries. this historical study is considered a logical, user experience-based design process, the latest issue derived from the collision between minimalism and the digital environment is not limited to practical industrial design processes, but also their theoretical study. the results show that user experience-based design process and minimalism share many of the same qualities. based on these similarities, minimalism and user experience-based design process can be grouped together both academically and theoretically for establishing a future academic template for the digital designing process.

• Journal of the Korea Fashion and Costume Design Association
• /
• v.10 no.2
• /
• pp.27-38
• /
• 2008

In the 21st century, the development of technology overturned the paradigm of the entire society and culture, and the term 'high-tech' became generally accepted around the world by the momentous advances of technology. The purpose of this study is to define the concept of high-tech fashion by clarifying the characteristics of high-tech fashion, and to propose the proper approach toward the coming fashion. Hussein Chalayan shows the experimental and futuristic designs based on the cultural context of architecture and sculpture. Moreover, the scope of this study has been limited into Hussein Chalayan's recent works after the year 2000 up to 2007. High-tech architecture has been, in some ways, a response to pow technology a new aesthetic in contrast with standard modern architecture. High-tech architecture aimed to achieve a new industrial aesthetic, spurred on by the renewed faith in the progression of technology. However, no matter how prominent the industrial look appeared, the functional element of modern architecture has been very much retained. The characteristics of high-tech architecture that had been extracted by analyzing the antecedent studies were: technocism, transformability, and dynamism. Furthermore, the characteristics of high-tech fashion has been explained based on the characteristics of high-tech architecture. First, technocism is expressed either by the new technologized materials, and advanced digital technology. Second, transformability is expressed in the transformable clothing, which performs various functions. Third, dynamism is displayed in dynamic forms influenced by the technology of engineering. High-tech will be the dominant influence in fashion, and the designers will be enamored with the technologies of the new millenium. Architecture and fashion share the characteristics of high-tech, and their common cultural features is confirmed again.

• Journal of the Korea Furniture Society
• /
• v.28 no.4
• /
• pp.332-339
• /
• 2017

Today, our indoor space requires a user-centered considering design that satisfies even human sensitivity. The word 'sensitivity' is being frequently used in the design market recently and this means that consumers are becoming more sensitive. For this reason, the characteristics of Toyo Ito's architecture, which are innocent due to its natural structure and materials, are suggested as a sensitive lighting stand design which can relieve users' stress from daily life and bring a psychological stability. As such, sensitivity lighting can create a lighting environment that considers consumers in various spaces along with the development of new scientific technologies and develop in a new direction of aesthetical beauty and eco-friendly area. In this study, a natural and sensitive lighting stand is suggested where a variety of digital art techniques of LED are applied based on formative characteristics of relationship, one of Toyo Ito's architectural concept factors. Such sensitivity lighting designs can not only realize a type-free design but also suggest a creation of the atmosphere which is close to nature.