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多路数字视频硬盘播出系统是一款为实时视频信息发布而专业设计的软件,为各行业提供了一个低成本高质量的视频信息发布的解决方案。该系统能在最大程度上挖掘最终用户现有电视网络带宽资源的潜力,能最大限度地发挥最终用户已有的各类多媒体、光盘等资源投入,使用户真正体会到资源全面整合所带来的便利和效益。 相似文献
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Peter Pirsch Carsten Reuter Jens Peter Wittenburg Mark B. Kulaczewski Hans-Joachim Stolberg 《The Journal of VLSI Signal Processing》2001,29(3):157-165
Architectural concepts are presented aimed at future multimedia processing schemes. Starting from an analysis of current and future multimedia applications, specific computational requirements are derived. It will be shown that multimedia applications benefit from an exhaustive and flexible exploitation of parallelism. Three architectural concepts—reconfigurable computing, simultaneous multithreading, and associative controlling—are presented, and their potential to increase further the performance on future multimedia applications is investigated. 相似文献
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Michael Schulte John Glossner Sanjay Jinturkar Mayan Moudgill Suman Mamidi Stamatis Vassiliadis 《The Journal of VLSI Signal Processing》2006,43(2-3):143-159
Embedded digital signal processors for software defined radio have stringent design constraints including high computational
bandwidth, low power consumption, and low interrupt latency. Furthermore, due to rapidly evolving communication standards
with increasing code complexity, these processors must be compiler-friendly, so that code for them can quickly be developed
in a high-level language. In this paper, we present the design of the Sandblaster Processor, a low-power multithreaded digital
signal processor for software defined radio. The processor uses a unique combination of token triggered threading, powerful
compound instructions, and SIMD vector operations to provide real-time baseband processing capabilities with very low power
consumption. We describe the processor’s architecture and microarchitecture, along with various techniques for achieving high
performance and low power dissipation. We also describe the processor’s programming environment and the SB3010 platform, a
complete system-on-chip solution for software defined radio. Using a super-computer class vectorizing compiler, the SB3010
achieves real-time performance in software on a variety of communication protocols including 802.11b, GPS, AM/FM radio, Bluetooth,
GPRS, and WCDMA. In addition to providing a programmable platform for SDR, the processor also provides efficient support for
a wide variety of digital signal processing and multimedia applications.
Michael Schulte received a B.S. degree in Electrical Engineering from the University of Wisconsin-Madison in 1991, and M.S. and Ph.D. degrees
in Electrical Engineering from the University of Texas at Austin in 1992 and 1996, respectively. From 1996 to 2002, he was
an assistant and associate professor at Lehigh University, where he directed the Computer Architecture and Arithmetic Research
Laboratory. He is currently an assistant professor at the University of Wisconsin-Madison, where he leads the Madison Embedded
Systems and Architectures Group. His research interests include high-performance embedded processors, computer architecture,
domain-specific systems, computer arithmetic, and wireless systems. He is a senior member of the IEEE and the IEEE Computer
Society, and an associate editor for the IEEE Transactions on Computers and the Journal of VLSI Signal Processing.
John Glossner is CTO & Executive Vice President at Sandbridge Technologies. Prior to co-founding Sandbridge, John managed the Advanced
DSP Technology group, Broadband Transmission Systems group, and was Access Aggregation Business Development manager at IBM’s
T.J. Watson Research Center. Prior to IBM, John managed the software effort in Lucent/Motorola’s Starcore DSP design center.
John received a Ph.D. in Computer Architecture from TU Delft in the Netherlands for his work on a Multithreaded Java processor
with DSP capability. He also received an M.S. degree in Engineering Management and an M.S.E.E. from NTU. John also holds a
B.S.E.E. degree from Penn State. John has more than 60 publications and 12 issued patents.
Dr. Sanjay Jinturkar is the Director of Software at Sandbridge and manages the systems software and communications software groups. Previously,
he managed the software tools group at StarCore. He has a Ph.D in Computer Science from University of Virginia and holds 20
publications and 4 patents.
Mayan Moudgill obtained a Ph.D. in Computer Science from Cornell University in 1994, after which he joined IBM at the Thomas J. Watson Research
Center. He worked on a variety of computer architecture and compiler related projects, including the VLIW research compiler,
Linux ports for the 40x series embedded processors and simulators for the Power 4. In 2001, he co-founded Sandbridge Technologies,
a start-up that is developing digital signal processors targeted at 3G wireless phones.
Suman Mamidi is a graduate student in the Department of Electrical and Computer Engineering at the University of Wisconsin-Madison. He
received his M.S. degree from the University of Wisconsin-Madison in December, 2003 and is currently working towards his PhD.
His research interests include low-power processors, hardware accelerators, multithreaded processors, reconfigurable hardware,
and embedded systems.
Stamatis Vassiliadis was born in Manolates, Samos, Greece, in 1951. He is currently a Chair Professor in the Electrical Engineering, Mathematics,
and Computer Science (EEMCS) department of Delft University of Technology (TU Delft), The Netherlands. He previously served
in the Electrical and Computer Engineering faculties of Cornell University, Ithaca, NY and the State University of New York
(S.U.N.Y.), Binghamton, NY. For a decade, he worked with IBM, where he was involved in a number of advanced research and development
projects. He received numerous awards for his work, including 24 publication awards, 15 invention awards, and an outstanding
innovation award for engineering/scientific hardware design. His 73 USA patents rank him as the top all time IBM inventor.
Dr. Vassiliadis is an ACM fellow, an IEEE fellow and a member of the Royal Netherlands Academy of Arts and Sciences (KNAW). 相似文献
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随着信息技术的不断深入发展,种类繁多的卡基应用系统也得到蓬勃发展,特别是IC卡,已在很多领域得到了广泛的应用.其中非接触式IC卡以其方便性、实用性以及很高的性价比在IC卡领域占领了很大一部分市场.本文讨论了基于"网络通"的IC卡读写器多线程接口控件的设计背景与设计思想,并用Visual C++.NET实现了接口控件的开发,给出了部分程序片断. 相似文献
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Stone JE Phillips JC Freddolino PL Hardy DJ Trabuco LG Schulten K 《Journal of computational chemistry》2007,28(16):2618-2640
Molecular mechanics simulations offer a computational approach to study the behavior of biomolecules at atomic detail, but such simulations are limited in size and timescale by the available computing resources. State-of-the-art graphics processing units (GPUs) can perform over 500 billion arithmetic operations per second, a tremendous computational resource that can now be utilized for general purpose computing as a result of recent advances in GPU hardware and software architecture. In this article, an overview of recent advances in programmable GPUs is presented, with an emphasis on their application to molecular mechanics simulations and the programming techniques required to obtain optimal performance in these cases. We demonstrate the use of GPUs for the calculation of long-range electrostatics and nonbonded forces for molecular dynamics simulations, where GPU-based calculations are typically 10-100 times faster than heavily optimized CPU-based implementations. The application of GPU acceleration to biomolecular simulation is also demonstrated through the use of GPU-accelerated Coulomb-based ion placement and calculation of time-averaged potentials from molecular dynamics trajectories. A novel approximation to Coulomb potential calculation, the multilevel summation method, is introduced and compared with direct Coulomb summation. In light of the performance obtained for this set of calculations, future applications of graphics processors to molecular dynamics simulations are discussed. 相似文献
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针对摩托车数字点火器,实现了一种低成本的标定系统。通过USB-RS232接口电路实现标定系统上、下位机的硬件连接。基于.NET Framework的Visual C#多线程编程技术完成上位机软件标定界面、监控模块、标定数据文件管理的设计;采用前后台模式完成下位机软件的标定通信和点火控制模块设计。实验表明,该标定系统工作稳定,操作方便,为数字点火器的快速开发提供了有效工具。 相似文献