Low-power random digit generator
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United States of America Patent
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Jul 21, 1998
Grant Date -
N/A
app pub date -
May 2, 1995
filing date -
May 2, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
A low-power random digit generator for use with existing circuitry samples a changing physical variable. In a communications device, the random digit generator has an A/D converter that repetitively converts a received analog signal at a conversion rate, where a magnitude of the received analog signal changes at a received rate. At least one bit from the conversion is selected, and a random digital signal having a magnitude corresponding to the at least one bit is generated. The communications device preferably taps off an existing A/D converter and uses combinational circuitry to minimize power consumption.
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