Delay device, method, and random number generator using the same
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United States of America Patent
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Jun 2, 2015
Grant Date -
Jul 17, 2014
app pub date -
Jan 16, 2013
filing date -
Jan 16, 2013
priority date (Note) -
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Abstract
A delay device for generating a signal for a random component in a random number generator is disclosed. The delay device includes a delay module, for generating a plurality of delayed signals, wherein each delayed signal has a delay time and the delay time is different from each other; a first multiplexer, coupled to the delay module, for outputting a delayed signal among the plurality of delayed signals as a delayed trigger signal to control the random component to generate a random bit; and a delay selector, coupled to the first multiplexer, for generating a selecting signal to control the first multiplexer to select to output the delayed signal as the delayed trigger signal.
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