Circuit and method for generating the stochastic signal
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United States of America Patent
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Feb 26, 2013
Grant Date -
Oct 27, 2011
app pub date -
Apr 20, 2011
filing date -
Apr 21, 2010
priority date (Note) -
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Abstract
A stochastic signal generation circuit includes a signal output circuit and a signal processing circuit connected with the signal output circuit. The signal output circuit includes two matching semiconductor components, wherein the signal output circuit detects a slight mismatch between the two matching semiconductor components, converts the detected slight mismatch into a corresponding electric signal, amplifies the electric signal, and outputs an analog voltage signal. The signal processing circuit converts the analog voltage signal into a stochastic digital signal. Also, a method for generating a stochastic signal is provided. The present invention decreases the cost of the integrated circuit, and better ensures the information security of the electronic products.
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