• Digital Contents
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• no.8 s.159
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• pp.66-71
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• 2006

예전에 모뎀을 통한 PC통신이 한창 유행할 때, ROM족이라는 유행어가 있었다. RAM(Random Access Memory)과 함께 컴퓨터의 기억장치로 활용되는, 읽기만 가능한 저장매체(Read Only Memory)를 뜻하는 용어였다. 그런데 이 용어는 이 속성을 빗대어 게시판을 읽기만 하는 회원(Read Only Member)을 가리키는 말로도 쓰였다. 정보화시대에 있어서 정보라는 것, 비록 형태가 없는 것들이 대부분이지만 이 역시 누군가가 사용하기 위해서는 누군가가 만들어내야 한다. 수요와 공급이 일어나는 정보 유통 구조다. 혹자는 ROM족으로 소비생활에만 치중하지만, 또 다른 혹자들은 소비와 생산을 동시에 하는 프로슈머(ProSumer) 역할을 한다. 이번호에서는 이러한 생산성을 띤 소비자들에 대한 이야기를 하고자 한다.

• KLA journal
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• v.29 no.4 s.251
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• pp.2-12
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• 1988

본고는 아직 우리들에게 생소한 분야인 CD-ROM(Compact Disk-Read Only Memory)이라고 하는 정보매체가 어떻게 Audio CD에서 발전하여 컴퓨터의 Data Storage의 매체로 탄생되었는지에 대해 다음과 같은 내용을 해설하였다. 첫째는 매체로서의 잇점과 그것을 정보전달매체로서 이용하였을 때의 특징에 대하여 기술하였으며 둘째는 실제로 CD-ROM을 사용한 시스팀으로서는 어떠한 형태로 되는가,Application을 염두에 두고 생각한다. 셋째는 데이터의 가공에서 디스크의 제작에 이르기까지의 과정에 대하여 기술하였으며 끝으로 장래의 전망과 문제점에 대하여 간단히 기술하였다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.23 no.7
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• pp.1718-1731
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• 1998

Digital quadrature demodulator is needed for the coherent demodulation in the digital communication systems such as Binary Phase-Shift-Keying, Quadrature Phase-Shift-Keying, and Quadrature Anmplitude Modulation. Conventaionally, the DDFS (Direct Digital Frequency Synthsizer) is used for generating the carrier signal and seperate multi-pliers are used for mixing. And the DDFS is implemented using the ROM (Read Only Memory), which can be a bottle-neck neck when the fast-speed and small-area implementation is required. A new architecture is developed, which employs the circular rotation mode of the CORDIC algorithm for signal mixing as well as carrier generation. To optimize the hardware design parameters, the finiteword-length effects of the proposed implementation arachitecture are analyzed in comparison with a conventional ROM-based architecture. The hardware costs are also estimated, which showed that the proposed architecture occupies only a third of the area of the conventional ROM-based architecture for the same performance. A full-custom VLSI is developed using the proposed architecture.

• Proceedings of the KAIS Fall Conference
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• 2000.10a
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• pp.194-198
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• 2000

최근 저장 장치로 많이 사용되고 있는 IBM PC의 CD-ROM(Compact Disc Read Only Memory)과 MP3(MPEG-1 Layer Ⅲ Audio) 디코더 칩을 이용하여 PC 작동과 관계없이 독립적으로 작동하는 CD-ROM 기반의 MP3 Player를 구현하였다. 여기서는 CD-ROM의 규격과 CD-ROM에 사용되는 ATAPI(AT Attachment Packet Interface) Format, MPEG-1 Layer Ⅲ의 오디오 부분에 대하여 알아보고 MP3 디코더 칩을 사용하여 CD-ROM에서 읽은 MP3 데이터즐 재생하는 방법을 취하였다. 이리하여 PC 자체로 MP3를 작동시키는 부하를 경감시키는 효과를 얻었다.

• Communications of the Korean Institute of Information Scientists and Engineers
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• v.5 no.2
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• pp.90-93
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• 1987

Relatively few papers are known to study the clustering the same kind of data records in a cylinder. In this article, I reviewed the clustering algorithms especially for the cellular list file which have been studied.

• ETRI Journal
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• v.35 no.4
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• pp.594-602
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• 2013

This paper proposes printed organic one-time programmable read-only memory (PROM). The organic PROM cell consists of a capacitor and an organic p-type metal-oxide semiconductor (PMOS) transistor. Initially, all organic PROM cells with unbroken capacitors store "0." Some organic PROM cells are programmed to "1" by electrically breaking each capacitor with a high voltage. After the capacitor breaking, the current flowing through the PROM cell significantly increases. The memory data is read out by sensing the current in the PROM cell. 16-bit organic PROM cell arrays are fabricated with the printed organic PMOS transistor and capacitor process. The organic PROM cells are programmed with -50 V, and they are read out with -20 V. The area of the 16-bit organic PROM array is 70.6 $mm^2$.

• Transactions of the Society of Information Storage Systems
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• v.1 no.2
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• pp.132-136
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• 2005

It is widely accepted that the reading mechanism of Super-RENS(super-resolution near field structure) and Super-ROM(super-resolution read only memory) is closely related with non-linear temperature dependent material properties such as refractive indices, phase change. Furthermore, the dynamic change of the temperature distribution also an essential part of reading mechanism of Super-RENS/ROM. Therefore, the knowledge of the temperature distribution as a function a time is one of the important keys to reveal the physics of reading mechanism in Super-RENS/ROM. We calculated time-dependent temperature distribution in a 3-dimensional Super-ROM disk structure when moving laser beam is irradiated. With a help of commercial software FEMLAB which employed finite element method, we simulated the temperature distribution of ROM structure whose pit diameter is 120-nm with 50-nm depth. Energy absorption by moving laser irradiation, time variations of heat transfer processes, heat fluxes, heat transfer ratios, and temperature distributions of the complicate 3-dimensional ROM structure have been obtained.

• Ceramist
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• v.7 no.3
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• pp.15-20
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• 2004

일반적으로 정보 저장장치라고 하면 컴퓨터의 하드디스크나 음악을 듣기 위해 이용되는 컴팩트디스크(compact disk- read only memory, CD-ROM)를 생각하게 된다. 1956년 미국 캘리포니아주의 산호세에 위치한 IBM의 한 연구소에서 자성체를 이용한 정보저장장치(hard disk, HD) RAMAC 이 처음 개발된 이래 지난 50년간 HD는 매년 60～100%의 저장용량의 능력을 증가시키며 컴퓨터 산업과 더불어 눈부시게 성장해 오고 있다. (중략)

• The Korean Journal of Rheology
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• v.11 no.2
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• pp.97-104
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• 1999

This paper presents vibration control of a drive feeding system consisting of a new type of CD-ROM(compact discread only memory) mount using electro-rheologocal(ER) fluid. Chemically treated starch particles and silicon oil are used for ER fluid. and its field-dependent yield stresses are experimentally distilled under both the shear and the flow modes. On the basis of the yield stress, an appropriate size of ER CD-ROM mount adapted to conventional feeding system is designed and manufactured. Vibration isolation performance of the proposed mount is evaluated in the frequency domain and compared with that of conventional rubber mount. The ER CD-ROM mount is then installed to the drive feeding system and the system equation of motion is derived. Following the formulating the sky-hook controller, computer simulation is undertaken in order to evaluate vibration suppression of the feeding system subjected to various disturbances(excitations).

• Proceedings of the KSME Conference
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• 2001.06c
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• pp.445-450
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• 2001

DVD(Digital Versatile Disk) is the data storage media devised to make high storage density and high data input/output possible. Therefore higher rotational speed and better accuracy in optical pick-up are required compared with the existing optical storage device. These operational functional requirements are concerned with abilities of optical storage device. Especially, High rotational speed is deeply concerned with the noise and vibration of optical storage device, is important problem in development of optical storage device so much. This paper propose a new concept ROM media of optical storage device named as Cylindrical ROM media, and evaluate this by means of Axiomatic approach and empirical data.