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Fault-tolerant dot product engine

  • US 10,545,821 B2
  • Filed: 07/31/2017
  • Issued: 01/28/2020
  • Est. Priority Date: 07/31/2017
  • Status: Active Grant
First Claim
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1. A fault-tolerant dot product engine, comprising:

  • a crossbar array having a number l of row lines and a number n of column lines intersecting the row lines to form l×

    n memory locations, each memory location comprising a programmable memristive element and defining a matrix value;

    a number l of digital-to-analog converters coupled to the row lines of the crossbar array to receive an input signal; and

    a number n of analog-to-digital converters coupled to the column lines of the crossbar array to generate an output signal that is a dot product of the input signal and the matrix values in the crossbar array,wherein a number m<

    n of the n column lines in the crossbar array are programmed with matrix values used to detect and correct errors in the output signal.

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