• Title/Summary/Keyword: Decorder

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A 500MHz 1.1㎱ 32kb SRAM Macro with Selective Bit-line Precharge Scheme (선택적 프리차지 방법을 갖는 500MHz 1.1㎱ 32kb SRAM 마크로 설계)

  • 김세준;장일권곽계달
    • Proceedings of the IEEK Conference
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    • 1998.10a
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    • pp.699-702
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    • 1998
  • This paper presents a 500MHz 1.1㎱ 32kb synchronous CMOS SRAM macro using $0.35\mu\textrm{m}$ CMOS technology. In order to operate at high frequency and reduce power dissipation, the designed SRAM macro is realized with optimized decoder, multi-point sense amplifier(MPSA), selective precharge scheme and etc. Optimized decorder and MPSA respectively reduce 50% and 40% of delay time. Also, a selective precharge scheme reduces 80% of power dissipation in that part.

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Barcode Systems for Library Applications (도서관(圖書館) 업무(業務)에 대한 바코드 시스템의 응용(應用))

  • Choi, Suk-Doo
    • Journal of Information Management
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    • v.19 no.1
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    • pp.30-49
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    • 1988
  • To design and implement a barcode system in the process of library automation, a thorough understanding of the elements of a barcode system is essential. This paper is to provide the basic features of barcoding along with discussions of the selection criteria of the symbology, media, printer, operator, scanner, decorder and a methodology of library's approach.

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A Study on High Speed LDPC Decoder Based on HSS (HSS기반의 고속 LDPC 복호기 연구)

  • Jung, Ji Won
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.5 no.3
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    • pp.164-168
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    • 2012
  • LDPC decoder architectures are generally classified into serial, parallel and partially parallel architectures. Conventional method of LDPC decoding in general give rise to a large number of computation operations, mass power consumption, and decoding delay. It is necessary to reduce the iteration numbers and computation operations without performance degradation. This paper studies Horizontal Shuffle Scheduling (HSS) algorithm. In the result, number of iteration is half than conventional algorithm without performance degradation. Finally, this paper present design methodology of high-speed LDPC decoder and confirmed its throughput is up to about 600Mbps.