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US 3,937,936 AGranted
Equipment self-repair by adaptive multifunction modules
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorsJames Saporito, Wolfgang W. Gaertner
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Abstract
An equipment self repair apparatus utilizing the substitution of redundant circuits for a failure in any original operating logic module. The substitution is accomplished through the use of a multiplexer unit which disconnects the faulty circuit and switches a built-in spare in its place.
Claims7
An equipment self-repair apparatus utilizing adaptive multifunction modules comprising in combination:
- a plurality of logic units having an input, an output, and power supply respectively,
- a plurality of multiplexer units respectively connected to said plurality of logic units, said plurality of multiplexer units respectively controlling the input and the power supply connections to said plurality of logic units, said plurality of multiplexer units respectively controlling the output from said plurality of logic units, said plurality of multiplexer units respectively providing a control signal, and
- an adaptive spare unit connected respectively to each of said plurality of multiplexer units to receive said input and control signals therefrom, said adaptive spare unit providing a plurality of output signals respectively to said plurality of multiplexer units, said adaptive spare unit being substituted for one of said plurality of logic units when said respective multiplexer unit control signal indicates a faulty logic unit, said adaptive spare unit receiving the input from said faulty logic unit and providing an output to the multiplexer associated with said faulty logic unit.
Dependencies are inferred from the claim text.