Patents Represented by Attorney M. A. Wurm

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  • Spare signal line switching method and apparatus
    Patent number: 5448572
    Abstract: An apparatus and method for increasing the mean time between failure for computer systems is disclosed. A single spare line can be used to replace any of several signal lines. Using 2:1 multiplexers, defective signal lines can easily be switched to a nonoperative state and the remaining signal lines shifted to provide for replacement of the defective line without significant path length increase or signal time delay. The invention is applicable to signal paths of different varieties, including electrical, electro-optical and fluidic.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: September 5, 1995
    Assignee: International Business Machines Corporation
    Inventors: Lonnie A. Knox, Dale A. Rickard