Fault-tolerant dot product engine
First Claim
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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Abstract
Examples disclosed herein relate to a fault-tolerant dot product engine. The fault-tolerant dot product engine has 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, with each memory location having a programmable memristive element and defining a matrix value. A number l of digital-to-analog converters are coupled to the row lines of the crossbar array to receive an input signal and a number n of analog-to-digital converters are coupled to the column lines of the crossbar array to generate an output signal. The output signal 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 errors in the output signal.
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Citations
7 Claims
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1. A fault-tolerant dot product engine, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification