Systems and methods for detecting events that are sparse in time
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United States of America Patent
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Jun 2, 2020
Grant Date -
Oct 5, 2017
app pub date -
Apr 4, 2016
filing date -
Apr 4, 2016
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Abstract
Under one aspect, a method is provided for detecting events that are sparse in time. The method can include (a) receiving N analog input signals that are continuous and are independent from one another, wherein each one of the events causes a change in a corresponding one of the analog input signals, and N is 2 or greater. The method also can include (b) by a first analog circuit, for each of the N analog input signals, outputting products of that analog input signal and a plurality of gain factors. The method also can include (c) by a second analog circuit, outputting M sums of the products, wherein M is 2 or greater and is less than or equal to N. The method also can include (d) detecting a first one of the events based on the M sums of the products.
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