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Proceedings of the IEEE

Issue 4 • Apr 1995

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Displaying Results 1 - 11 of 11
  • Technology directions for portable computers

    Publication Year: 1995, Page(s):636 - 658
    Cited by:  Papers (40)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2040 KB)

    This paper contains an evaluation of trends in the key system parameters (e.g., size, weight, function, performance, battery life) for battery-powered portable computers, together with a review of development trends in the technologies required for such systems. The discussion focuses on notebook-size portable computers. Those technologies which will have substantial impact on battery life and pow... View full abstract»

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  • Low power microelectronics: retrospect and prospect

    Publication Year: 1995, Page(s):619 - 635
    Cited by:  Papers (172)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1416 KB)

    The era of low power microelectronics began with the invention of the transistor in the late 1940's and came of age with the invention of the integrated circuit in the late 1950's. Historically, the most demanding applications of low power microelectronics have been battery operated products such as wrist watches, hearing aids, implantable cardiac pacemakers, pocket calculators, pagers, cellular t... View full abstract»

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  • Technology leverage for ultra-low power information systems

    Publication Year: 1995, Page(s):607 - 618
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1140 KB)

    Many applications for future generations of logic and memory chips will be requiring highly sophisticated computing functions at low cost. Small form factors, portability, and low cost will require low power operation. While continued scaling of silicon technology to dimensions below quarter micron devices and interconnections appears technically feasible, higher levels of integration and operatio... View full abstract»

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  • CMOS scaling for high performance and low power-the next ten years

    Publication Year: 1995, Page(s):595 - 606
    Cited by:  Papers (190)  |  Patents (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1108 KB)

    A guideline for scaling of CMOS technology for logic applications such as microprocessors is presented covering the next ten years, assuming that the lithography and base process development driven by DRAM continues on the same three-year cycle as in the past. This paper emphasizes the importance of optimizing the choice of power-supply voltage. Two CMOS device and voltage scaling scenarios are de... View full abstract»

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  • Trends and limits in the “Talk times” of personal communicators

    Publication Year: 1995, Page(s):681 - 686
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    In the past, telecommunications and computing have only been possible within a few feet from a telephone jack or an AC outlet. The user interface has required hand-eye coordination, full user attention, and a working surface to operate, for example, a telephone keypad a keyboard or a mouse. Now, “personal communicators” with wireless connectivity, energy efficient electronics novel use... View full abstract»

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  • Power conscious CAD tools and methodologies: a perspective

    Publication Year: 1995, Page(s):570 - 594
    Cited by:  Papers (105)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2568 KB)

    Power consumption is rapidly becoming an area of growing concern in IC and system design houses. Issues such as battery life, thermal limits, packaging constraints and cooling options are becoming key factors in the success of a product. As a consequence, IC and system designers are beginning to see the impact of power on design area, design speed, design complexity and manufacturing cost. While p... View full abstract»

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  • Trends in low-power RAM circuit technologies

    Publication Year: 1995, Page(s):524 - 543
    Cited by:  Papers (128)  |  Patents (35)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1504 KB)

    Trends in low-power circuit technologies of CMOS RAM chips are reviewed in terms of three key issues: charging capacitance, operating voltage, and dc current. The discussion includes a general description of power sources in a RAM chip, and covers both DRAMs and SRAMs. In DRAMs, successive circuit advancements have produced a power reduction equivalent to two to three orders of magnitude over the ... View full abstract»

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  • Portable video-on-demand in wireless communication

    Publication Year: 1995, Page(s):659 - 680
    Cited by:  Papers (73)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1928 KB)

    Our present ability to work with video has been confined to a wired environment, requiring both the video encoder and decoder to be physically connected to a power supply and a wired communication link. This paper describes an integrated approach to the design of a portable video-on-demand system capable of delivering high-quality image and video data in a wireless communication environment. The d... View full abstract»

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  • Batteries for low power electronics

    Publication Year: 1995, Page(s):687 - 693
    Cited by:  Papers (80)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (652 KB)

    Progress in battery technology is closely tied to that in electronics, however, it is slow in comparison. Growth in new systems once in production, is also slow, depending upon the development of new devices which need their performance characteristics. This has been true, in particular for lithium cells operating at 3 V. Older electrochemical systems such as C-Zn, alkaline, Zn-air, NiCd, and lead... View full abstract»

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  • Low-power radio-frequency ICs for portable communications

    Publication Year: 1995, Page(s):544 - 569
    Cited by:  Papers (139)  |  Patents (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2404 KB)

    The contributions of integrated circuits to the RF front-end of wireless receivers and transmitters operating in broadcast and personal communications bands are surveyed. It is seen from this that when ICs enable a rethinking of the RF architecture, the wireless device can sometimes become significantly smaller, and consume much less power. Examples are taken from FM broadcast receivers, pagers, a... View full abstract»

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  • Minimizing power consumption in digital CMOS circuits

    Publication Year: 1995, Page(s):498 - 523
    Cited by:  Papers (486)  |  Patents (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2272 KB)

    An approach is presented for minimizing power consumption for digital systems implemented in CMOS which involves optimization at all levels of the design. This optimization includes the technology used to implement the digital circuits, the circuit style and topology, the architecture for implementing the circuits and at the highest level the algorithms that are being implemented. The most importa... View full abstract»

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H. Joel Trussell
North Carolina State University