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IBM Journal of Research and Development

Issue 6 • Date Nov. 1998

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Displaying Results 1 - 15 of 15
  • Data compression technology in ASIC cores

    Publication Year: 1998 , Page(s): 725 - 732
    Cited by:  Papers (1)  |  Patents (1)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (563 KB)  

    IBM has made its data compression technology available to the industry through the ASIC (application-specific integrated circuit) Blue Logic core program. The papers in this journal describe four of IBM's data compression cores which are in that core library: ALDC (adaptive lossless data compression), JBIG-ABIC (Joint Bi-level Image Group-Adaptive Bi-level Image Compression), MPEG-2 (Moving Pictur... View full abstract»

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  • A fast hardware data compression algorithm and some algorithmic extensions

    Publication Year: 1998 , Page(s): 733 - 746
    Cited by:  Papers (12)  |  Patents (36)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1075 KB)  

    This paper reports on work at IBM's Austin and Burlington laboratories concerning fast hardware implementations of general-purpose lossless data compression algorithms, particularly for use in enhancing the data capacity of computer storage devices or systems, and transmission data rates for networking or telecommunications channels. The distinctions between lossy and lossless compression and stat... View full abstract»

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  • Design considerations for the ALDC cores

    Publication Year: 1998 , Page(s): 747 - 752
    Cited by:  Patents (2)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (549 KB)  

    The IBM adaptive lossless data compression (ALDC) family of products uses a derivative of Lempel-Ziv encoding to compress data. Several variables affect the compression performance of the ALDC algorithm: data content, history size, and data extent. As ALDC compression is integrated into different applications, restrictions are placed upon these variables that affect the overall compression perform... View full abstract»

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  • A JBIG-ABIC compression engine for digital document processing

    Publication Year: 1998 , Page(s): 753 - 758
    Cited by:  Papers (2)  |  Patents (2)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (498 KB)  

    This paper describes the implementation of a combined JBIG and ABIC compression- decompression engine, which has been integrated into a digital document- processing microcontroller used in imaging applications. View full abstract»

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  • Performance as a function of compression

    Publication Year: 1998 , Page(s): 759 - 766
    Cited by:  Patents (1)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (826 KB)  

    This paper discusses the performance of bilevel-image arithmetic coders, ABIC and JBIG, and Lempel-Ziv string compressors, ALDC and BLDC. Images are analyzed for typical and worst-case throughput and latency as a function of compression. A relationship between the compressibility of an image and the throughput performance of the compression algorithm is demonstrated. Generally, throughput performa... View full abstract»

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  • The Qx-coder

    Publication Year: 1998 , Page(s): 767 - 784
    Cited by:  Papers (10)  |  Patents (4)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1248 KB)  

    The IBM Adaptive Bilevel Image Compression (ABIC) algorithm depends upon the hardware-optimized Q-coder. The Joint Bi-level Image Experts Group (JBIG) settled upon a software-optimized QM-coder. This paper explores the incompatibilities of the hardware- and software-optimized binary arithmetic coding conventions and reports on the solution that allowed a merged Qx-coder in hardware. A unique hardw... View full abstract»

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  • The IBM JBIG-ABIC Verification Suite

    Publication Year: 1998 , Page(s): 785 - 794
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (717 KB)  

    The IBM JBIG-ABIC Verification Suite is a newly designed verification suite that contains more than 5000 correctly encoded test images. Previously existing verification images in total and consolidated in an ad hoc suite tested only a small fraction of the algorithm and were inadequate. The IBM JBIG-ABIC Verification Suite provides compatibility testing reference data for the ITU-T/ISO JBIG sequen... View full abstract»

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  • Integrating the MPEG-2 subsystem for digital television

    Publication Year: 1998 , Page(s): 795 - 806
    Cited by:  Patents (3)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (904 KB)  

    An MPEG-2 subsystem consisting of the transport demultiplexor, audio decoder, and video decoder is described, along with the supporting processor and memory subsystem. This subsystem is directly applicable to set-top box designs used in a digital television broadcast environment. The advantages of an integrated MPEG-2 subsystem consisting of cores from the IBM Blue Logic library are discussed. The... View full abstract»

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  • A decompression core for PowerPC

    Publication Year: 1998 , Page(s): 807 - 812
    Cited by:  Papers (21)  |  Patents (3)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (494 KB)  

    Code size efficiency is a critical parameter in the design of computer systems for embedded applications. This paper describes a method for improving code size efficiency involving the use of compression techniques to reduce the size of the stored code, and on-the-fly hardware decompression at full processor speed for execution. A simple frequency-based encoding scheme for PowerPC® code ach... View full abstract»

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  • Modular nets (MNETS): A modular design methodology for computer timers

    Publication Year: 1998 , Page(s): 813 - 830
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1340 KB)  

    This paper describes a modular, graphical, fully implemented CAD tool for building timers to model computer pipelines. The complete system is composed of three parts which can exist independently but have been fully integrated to provide a user-friendly CAD tool. These parts are, first, modular nets (MNETS), a new modeling concept for modular, graphical implementation of pipeline structures of any... View full abstract»

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  • Recent publications by IBM authors

    Publication Year: 1998 , Page(s): 831 - 838
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (645 KB)  

    The information listed here is supplied by the Institute for Scientific Information and other outside sources. Reprints of the papers may be obtained by writing directly to the first author of cited. Journals are listed alphabetically by title; papers are listed sequentially for each journal. View full abstract»

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  • Recent IBM patents

    Publication Year: 1998 , Page(s): 839 - 860
    Save to Project icon | PDF file iconPDF (1353 KB)  
    Freely Available from IEEE
  • Author index for papers in Volume 42

    Publication Year: 1998 , Page(s): 861 - 866
    Save to Project icon | PDF file iconPDF (275 KB)  
    Freely Available from IEEE
  • Subject index for papers in Volume 42

    Publication Year: 1998 , Page(s): 867 - 873
    Save to Project icon | PDF file iconPDF (424 KB)  
    Freely Available from IEEE
  • Errata [Addenda]

    Publication Year: 1998 , Page(s): 874
    Save to Project icon | PDF file iconPDF (48 KB)  
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Aims & Scope

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.

Full Aims & Scope

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