• Title/Summary/Keyword: Hardware design

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컴퓨터 모니터 디자인 개발에서 인간공학 응용

  • 신명철
    • Proceedings of the ESK Conference
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    • 1997.10a
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    • pp.320-325
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    • 1997
  • It is very diffcult to applied ergonomics data & experiments in industrial design. At the industrial design process attempted toadoption a egonomics. But sometimes easyto use ergonomics data and at other times very hard to adopted a element into a design process. Industrial design of the essence is a sensual act. As ergonomics data is to the hardware, sois the design sense to the software. The harmony are important to hardware & software of design process. New products demand to new form. Therefore, designer neglect to ergonomics experiments for user. Anyway, ergonomics experiments & data endlessly applied to more things year after year. This paper show improved computer front design with graphic, knobs size & control panel tilt angle.

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A Study on Optimization Design of MPEG Layer 2 Audio Decoder for Digital Broadcasting (디지털 방송용 MPEG Layer 2 오디오 복호기의 최적화 설계에 관한 연구)

  • 박종진;조원경
    • Journal of the Institute of Electronics Engineers of Korea TE
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    • v.37 no.5
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    • pp.48-55
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    • 2000
  • Recently due to rapid improvement of integrated circuit design environment, size of IC design is to become large to possible design System on Chip(SoC) that one chip with multi function enclosed. Also cause to this rapid change, consumption market is require to spend smallest time for new product development. In this paper to propose a methodology can design a large size IC for save time and applied to design of MPEG Layer 2 decoder to can use audio receiver in digital broadcast system. The digital broadcast audio decoder in this paper is pointed to save hardware size as optimizing algorithm. MPEG Layer 2 decoder algorithm is include MAC to can have an effect on hardware size. So coefficients are using sign digit expression. It is for hardware optimization. If using this method can design MAC without multiplier. The designed audio decoder is using 14,000 gates hardware size and save 22% (4000 gates) hardware usage than using multiplier. Also can design MPEG Layer 2 decoder usable digital broadcast receiver for short time.

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Design of Cryptographic Hardware Architecture for Mobile Computing

  • Kim, Moo-Seop;Kim, Young-Sae;Cho, Hyun-Sook
    • Journal of Information Processing Systems
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    • v.5 no.4
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    • pp.187-196
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    • 2009
  • This paper presents compact cryptographic hardware architecture suitable for the Mobile Trusted Module (MTM) that requires low-area and low-power characteristics. The built-in cryptographic engine in the MTM is one of the most important circuit blocks and contributes to the performance of the whole platform because it is used as the key primitive supporting digital signature, platform integrity and command authentication. Unlike personal computers, mobile platforms have very stringent limitations with respect to available power, physical circuit area, and cost. Therefore special architecture and design methods for a compact cryptographic hardware module are required. The proposed cryptographic hardware has a chip area of 38K gates for RSA and 12.4K gates for unified SHA-1 and SHA-256 respectively on a 0.25um CMOS process. The current consumption of the proposed cryptographic hardware consumes at most 3.96mA for RSA and 2.16mA for SHA computations under the 25MHz.

Gradient Magnitude Hardware Architecture based on Hardware Folding Design Method for Low Power Image Feature Extraction Hardware Design (저전력 영상 특징 추출 하드웨어 설계를 위한 하드웨어 폴딩 기법 기반 그라디언트 매그니튜드 연산기 구조)

  • Kim, WooSuk;Lee, Juseong;An, Ho-Myoung
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.10 no.2
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    • pp.141-146
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    • 2017
  • In this paper, a gradient magnitude hardware architecture based on hardware folding design method is proposed for low power image feature extraction. For the hardware complexity reduction, the projection vector chracteristic of gradient magnitude is applied. The proposed hardware architecture can be implemented with the small degradation of the gradient magnitude data quality. The FPGA implementation result shows the 41% of logic elements and 62% embedded multiplier savings compared with previous work using Altera Cyclone VI (EP4CE115F29C7N) FPGA and Quartus II v16.0 environment.

Hardware Design of a Two-Stage Fast blck Matching Algorithm Using Integral Projections (거상투영을 이용한 2단계 고속 블록정합 알고리즘의 하드웨어 설계)

  • 판성범;채승수;김준식;박래홍;조위덕;임신일
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.31B no.7
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    • pp.129-140
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    • 1994
  • In this paper we investigate the hardware implementation of block matching algorithms (BMAs) for moving sequences. Using systolic arrays we propose a hardware architecture of a two-stage BMA using integral projections which reduces greatly computational complexity with its performance comparable to that of the full search (FS). Proposed hardware architecture is faster than hardware architecture of the FS by 2~15 times. For realization of the FS and two stage BMA modeling and simulation results using SPW and VHDL are also shown.

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Embedded One Chip Computer Design for Hardware Implementation of Genetic Algorithm (유전자 알고리즘 하드웨어 구현을 위한 전용 원칩 컴퓨터의 설계)

  • 박세현;이언학
    • Journal of Korea Multimedia Society
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    • v.4 no.1
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    • pp.82-90
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    • 2001
  • Genetic Algorithm(GA) has known as a method of solving NP problem in various applications. Since a major drawback of the GA is that it needs a long computation time, the hardware implementation of Genetic Algorithm is focused on in recent studies. This paper proposes a new type of embedded one chip computer fort Hardware Implementation of Genetic Algorithm. The proposed embedded one chip computer consists of 16 Bit CPU care and hardware of genetic algorithm. In contrast to conventional hardware oriented GA which is dependent on main computer in the process of GA, the proposed embedded one chip computer is independent on main computer. Conventional hardware GA uses the fixed length of chromosome but the proposed embedded one chip computer uses the variable length of chromosome by employing the efficient 16 bit Pipeline Unit. Experimental results show that the proposed one chip computer is applicable to the design of evolvable hardware for Random NRZ bit synchronization circuit.

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Low-Power Design of Hardware One-Time Password Generators for Card-Type OTPs

  • Lee, Sung-Jae;Lee, Jae-Seong;Lee, Mun-Kyu;Lee, Sang-Jin;Choi, Doo-Ho;Kim, Dong-Kyue
    • ETRI Journal
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    • v.33 no.4
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    • pp.611-620
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    • 2011
  • Since card-type one-time password (OTP) generators became available, power and area consumption has been one of the main issues of hardware OTPs. Because relatively smaller batteries and smaller chip areas are available for this type of OTP compared to existing token-type OTPs, it is necessary to implement power-efficient and compact dedicated OTP hardware modules. In this paper, we design and implement a low-power small-area hardware OTP generator based on the Advanced Encryption Standard (AES). First, we implement a prototype AES hardware module using a 350 nm process to verify the effectiveness of our optimization techniques for the SubBytes transform and data storage. Next, we apply the optimized AES to a real-world OTP hardware module which is implemented using a 180 nm process. Our experimental results show the power consumption of our OTP module using the new AES implementation is only 49.4% and 15.0% of those of an HOTP and software-based OTP, respectively.

Hardware Design Interfacing between Broadband Wireless Access PHY Modem and MAC Layer (광대역 무선 접속 모뎀과 MAC 계층간 인터페이스 하드웨어 설계)

  • Kong Min-Han;Song Moon-Kyou
    • Proceedings of the IEEK Conference
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    • 2004.06a
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    • pp.95-98
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    • 2004
  • In this paper, the hardware design of a transmission convergence sublayer(TC) for boradband wireless access system is described, which performs (1) formatting TC PDUs to MAC PDUs, (2) RS encoding/decoding, (3) providing various control signal to PHY modem. The TC hardware has been designed in VHDL, and successfully synthesized in an FPGA chip.

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Design of Input/Output Interface for ARM/AMBA based Board Using VHDL

  • Ryoo, Dong-Wan;Lee, Jeon-Woo
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.131.1-131
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    • 2001
  • At the present time, multimedia chip, internet application, and network equipment is designed by using ARM core. Because it has a good debugging, software compiler and needed low power. We must process a data coding to send a multimedia data by real time. So need to connect software and hardware algorithm. In this research, We design interface for ARM9/AMBA based board using VHDL for these function implementation. The board is used the ARM company´s ARM940T for software function implementation and Xilinx company´s Virtex E2000 for hardware function algorithm. The various hardware algorithm (ME,ME,DCT) block for performance can be implemented on this system.

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