Volume 41 Issue 3 • March 2004

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  • IEEE Spectrum - March 2004

    Publication Year: 2004, Page(s): 01
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  • IEEE Spectrum - volume 41, number 3 - Table of contents

    Publication Year: 2004, Page(s):3 - 5
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  • Contributors

    Publication Year: 2004, Page(s): 7
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  • Spectral Lines: Telecom's Turbocharged Next Act

    Publication Year: 2004, Page(s): 9
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  • Forum

    Publication Year: 2004, Page(s): 10
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  • Around the World In a Solar Plane

    Publication Year: 2004, Page(s):12 - 14
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  • Biometrics Boom

    Publication Year: 2004, Page(s): 13
    Cited by:  Papers (1)
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  • Can the Hubble Telescope Be Saved?

    Publication Year: 2004, Page(s):14 - 15
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  • WiMax and Wi-Fi: Separate and Unequal

    Publication Year: 2004, Page(s): 16
    Cited by:  Papers (10)  |  Patents (1)
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  • Fujitsu Unveils New Type of Plasma Display

    Publication Year: 2004, Page(s):18 - 21
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  • U.S.Military Goes For Hybrid Vehicles

    Publication Year: 2004, Page(s):22 - 25
    Cited by:  Papers (2)  |  Patents (1)
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  • Photo Essay: Ball of Light

    Publication Year: 2004, Page(s):26 - 27
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  • Top 10 tech cars

    Publication Year: 2004, Page(s):28 - 35
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (51012 KB) | HTML iconHTML

    This article gives an overview of technical advances in automobiles. It covers such diverse areas as: hybrid vehicle drive trains; white LED lighting; roll stability control; active steering control; electric vehicles; hydrogen powered vehicles; 42 V automotive electrical systems; and fuel cells. View full abstract»

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  • Closing in on the perfect code [turbo codes]

    Publication Year: 2004, Page(s):36 - 42
    Cited by:  Papers (10)  |  Patents (3)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (28564 KB) | HTML iconHTML

    This article presents the history and operating principles of the error correcting codes known as turbo codes. Turbo codes use two encoders at the transmitter and two decoders at the receiver. With this divide-and-conquer approach, turbo codes outperform all previous error correcting codes. They have the ability to send error-free data almost at the theoretical limit. View full abstract»

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  • Chips go vertical [3D IC interconnection]

    Publication Year: 2004, Page(s):43 - 47
    Cited by:  Papers (15)  |  Patents (4)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (8047 KB) | HTML iconHTML

    This article describes 3D ICs. By stacking chips and directly connecting them with vertical wires, chip makers help interconnects keep up with increasing transistor speeds. A 3D IC is a stack of multiple dies with many direct connections tunneling through them, dramatically reducing global interconnect lengths and increasing the number of transistors that are within one clock cycle of each other. ... View full abstract»

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  • The end of spectrum scarcity [spectrum allocation and utilization]

    Publication Year: 2004, Page(s):48 - 52
    Cited by:  Papers (237)  |  Patents (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (13357 KB) | HTML iconHTML

    This article discusses the issues of spectrum allocation and the effect of new technologies on spectrum utilization. To understand the impact new radio technologies are having on spectrum availability, it is helpful first to address a common misconception: that spectrum is a concrete and finite resource. Not so. Radio waves do not pass through some ethereal medium called "spectrum"; they are the m... View full abstract»

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  • Young inventors of the world unite [innovators international network]

    Publication Year: 2004, Page(s):53 - 55
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  • Book review: Small Things Considered

    Publication Year: 2004, Page(s):56 - 58
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  • Book review: The Columbia Accident Investigation Report

    Publication Year: 2004, Page(s): 58
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  • Careers: A Balancing Act

    Publication Year: 2004, Page(s):60 - 61
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  • Who owns streaming media? [patent issues]

    Publication Year: 2004, Page(s):61 - 62
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  • Tools & Toys: Never Miss Another Shot

    Publication Year: 2004, Page(s): 62
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  • The impermanence of knowledge [Reflections]

    Publication Year: 2004, Page(s): 80
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IEEE Spectrum Magazine, the flagship publication of the IEEE, explores the development, applications and implications of new technologies.

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Editor-in-Chief
Susan Hassler
IEEE Spectrum Magazine