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IBM Journal of Research and Development

Issue 5 • Date Sept. 1977

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Displaying Results 1 - 13 of 13
  • Analysis of the Merged Charge Memory (MCM) Cell

    Publication Year: 1977, Page(s):402 - 414
    Cited by:  Papers (10)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (730 KB)

    This paper describes a new MOS dynamic RAM (Random-Access Memory) cell which utilizes a merged surface charge transistor structure. The merged charge memory (MCM) cell uses a polysilicon electrode as both a bit sense line and common plate for a column of storage capacitors. The MCM structure is self-aligned, contactless and free of closely spaced p-n junctions. Its spatial density approaches the c... View full abstract»

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  • Digital Technique for Generating Synthetic Aperture Radar Images

    Publication Year: 1977, Page(s):415 - 432
    Cited by:  Papers (11)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (770 KB)

    This paper describes a digital processing method applicable to a synthetic aperture radar, to be carried by the space shuttle or by satellites. The method uses an earth-fixed coordinate system in which corrective procedures are invoked to compensate for errors introduced by the satellite motion, earth curvature, and wavefront curvature. Among the compensations discussed are those of the coordinate... View full abstract»

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  • Safe Operating Area for Bipolar Transistors

    Publication Year: 1977, Page(s):433 - 442
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (539 KB)

    A mathematical model is utilized to predict the safe operating area (SOA) for proper circuit applications of bipolar transistors in the forward as well as reverse operating regions. Nonuniformity of the temperature within the transistor structure due to internal self-heating and the avalanche multiplication effect in the reverse operating region, which cause second breakdown failure, are taken int... View full abstract»

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  • Multidimensional Bin Packing Algorithms

    Publication Year: 1977, Page(s):443 - 448
    Cited by:  Papers (11)  |  Patents (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (420 KB)

    A comparative study is made of algorithms for a general multidimensional problem involving the packing of k-part objects in k compartments in a large supply of bins. The goal is to pack the objects using a minimum number of bins. The properties and limitations of the algorithms are discussed, including k-dimensional analogs of some popular one-dimensional algorithms. An application of the algorith... View full abstract»

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  • Zero Order and Nonzero Order Decision Rules in Medical Diagnosis

    Publication Year: 1977, Page(s):449 - 460
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (606 KB)

    In searching for the optimal solution to the medical diagnostic problem, it seems useful to distinguish between different possible decision rules (strategies). Two different classes of decision rules are considered: nonzero order decision rules and constant or zero order decision rules. For each class, solution methods as well as heuristic approaches to finding the optimal member of the class are ... View full abstract»

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  • Variable Geometry Cochlear Model at Low Input Frequencies: A Basis for Compensating Morphological Disorders

    Publication Year: 1977, Page(s):461 - 478
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (848 KB)

    The implementation of an algorithm suitable for interactive experimentation with a mathematical model of the cochlea is described. In the model, the cochlea's exterior shell is represented by a surface of revolution. Internally, the cochlea is partitioned symmetrically into two chambers (the scalae) by a midplane representing the basilar membrane with its bony supports together with the “co... View full abstract»

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  • Laser-Optical System of the IBM 3800 Printer

    Publication Year: 1977, Page(s):479 - 483
    Cited by:  Papers (1)  |  Patents (15)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (408 KB)

    A helium-neon laser, acousto-optical modulator and rotating polygonal mirror are used for the optical design of a computer printout system. This combination of technologies in the printer produces high-quality nonimpact printing at speeds of 23,000 to 52,000 characters per second. A new technique utilizing a cylindrical/toroidal lens pair is described which reduces, by two orders of magnitude, sca... View full abstract»

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  • Comment on “Decomposition of a Data Base and the Theory of Boolean Switching Functions” [Letter to the Editor]

    Publication Year: 1977, Page(s):484 - 485
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | PDF file iconPDF (248 KB)
    Freely Available from IEEE
  • Recent Papers by IBM Authors

    Publication Year: 1977, Page(s):486 - 490
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (413 KB)

    Reprints of the papers listed here may usually be obtained by writing directly to the authors. The authors' IBM divisions are identified as follows: DPD is the Data Processing Division; FED, Field Engineering Division; FSD, Federal Systems Division; GPD, General Products Division; GSD, General Systems Division; OPD, Ofice Products Division; RES, Research Division; SCD, System Communications Divisi... View full abstract»

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  • Recent IBM Patents

    Publication Year: 1977, Page(s):491 - 43
    IEEE is not the copyright holder of this material | PDF file iconPDF (223 KB)
    Freely Available from IEEE
  • Authors

    Publication Year: 1977, Page(s):494 - 495
    IEEE is not the copyright holder of this material | PDF file iconPDF (205 KB)
    Freely Available from IEEE
  • Contents of previous issue

    Publication Year: 1977, Page(s): 496
    IEEE is not the copyright holder of this material | PDF file iconPDF (220 KB)
    Freely Available from IEEE
  • Errata [G. J. Chaitin, “Algorithmic Information Theory,” IBM J. Res. Develop. 21, 350–359 (July 1977)]

    Publication Year: 1977, Page(s): 496
    IEEE is not the copyright holder of this material | PDF file iconPDF (220 KB)
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The IBM Journal of Research and Development is a peer-reviewed technical journal, published bimonthly, which features the work of authors in the science, technology and engineering of information systems.

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Editor-in-Chief
Clifford A. Pickover
IBM T. J. Watson Research Center