• Title, Summary, Keyword: 도미노 효과

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A Small Swing Domino Logic for Low Power Consumption (저전력 소비를 위한 저전압 스윙 도미노 로직)

  • 양성현;김두환;조경록
    • Journal of the Institute of Electronics Engineers of Korea SC
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    • v.41 no.6
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    • pp.17-25
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    • 2004
  • In this paper, we propose a new small swing domino logic for low-power consumption. To reduce the power consumption, both the precharge node and the output node swing the range from 0 to $V_{REF}$- $V_{THN}$, where $V_{REF}$=VDD-n $V_{THN}$ (n=1, 2, and 3). This can be done by adding the inverter structure on domino logic that allows a full swing or a small swing on its input terminal without leakage current. Compared to previous works, the proposed structure can save the power consumption of more than 30% for n=0, 1, 2, and 3 in the equation of $V_{REF}$=VDD-n $V_{THN}$. A multiplier applying the proposed domino logic has been designed and fabricated using a 0.35-${\mu}{\textrm}{m}$ n-well CMOS process under 3.3-V supply voltage. Compared with other previous works, it shows a 30% power reduction and a better feature in power-delay product.lay product.

An Error Control on a Multimedia Nested Session Management (멀티미디어 네스티드 세션 관리에서의 오류제어)

  • Ko, Eung-Nam;Hwang, Dae-Joon
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.201-204
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    • 2002
  • 본 논문에서는 멀티미디어 응용 개발 프레임워크에서 멀티미디어 응용 개발 프레임워크에서 네스티드 세션 관리에서의 오류 복구 방식에 대하여 기술한다. 네스티드 세션이란 하나의 부모 세션 아래에 여러 개의 자식 세션이 존재하는 것을 말한다. 제안하고자 하는 오류 제어는 멀티미디어 응용 개발 프레임워크에서 오류 발생시 오류를 하나의 메시지로 취급한다. 네스트드 세션에서 오류가 발견되면 복구는 스택을 사용하고 도미노 효과를 제거하기 위하여 네스티드 세션 및 검사점을 이용한 복구 알고리즘을 제안한다.

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An Error Detection and Recovery System based on Multimedia Computer Supported Cooperative Work (멀티미이어 협동 작업환경에서의 오류 감지 및 복구 시스템)

  • Ko, Eung-Nam;Hwang, Dae-Joon
    • The Transactions of the Korea Information Processing Society
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    • v.7 no.5
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    • pp.1330-1340
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    • 2000
  • Multimedia isn ow applied to various real world areas. In particular, the focus on multimedia system and CSCW(Computer Supported Cooperative Work) has increased. In spite of this current trend, however, the study of fault tolerance for CSCW has not yet fully progressed. We propose EDR_MSCW. It is a system that is suitable for detecting ad recovering software error based on multimedia computer supported cooperative work as DOORAE by using software techniques. DOORAE is a framwork for supporting development on multimedia applications for computer-based collaborative works. When an error occurs, EDR_MCSCW detects an error by using hooking methods in MS-Windows API(Application Program Interface) function. If an error is found, we present a checkpointing and recovery algorithm which has the removal function of the domino-effect for recovering multimedia and CSCW by using stack.

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Damage Prediction of Infomation and Communication Facilities for Prolonged Power Outage (장기간 정전사태에 대비한 기반시설-정보통신시설-에서의 피해예측)

  • Song, Chang Young;Cho, In Uh
    • Journal of Korean Society of Disaster and Security
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    • v.5 no.2
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    • pp.81-87
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    • 2012
  • Critical infrastructures (energy, information technology and communications, banking, transportation, public government services, etc.) are now more vital to modern society. Citizens, businesses and governments all rely on an array of interlinked physical and information infrastructures to satisfy their needs and perform their daily operations. At the same time, these infrastructures are becoming increasingly interdependent, such that failure of one of them can often propagate and result in domino effects. Recent dramatic episodes, from 9/11 to the Madrid train bombings, the April 2010 ash cloud the power cuts in Korea in 2011, and the cyber-attacks have highlighted the need for a comprehensive, internationally coordinated policy for the protection of critical infrastructures. For the purposes of this report, we define critical infrastructure as infrastructure whose failure would result in substantial damage to society and/or the economy.