Method and apparatus for random sequence generator
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United States of America Patent
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Feb 13, 2001
Grant Date -
N/A
app pub date -
Jul 16, 1999
filing date -
May 12, 1999
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Abstract
An apparatus having a white noise source which is coupled to a gain stage having an amplifier. The gain stage is coupled to a noise shaping stage which is also coupled to a decision circuit. Another apparatus having a white noise source which is differentially coupled to a gain stage that has a cascade of open loop amplifiers. The gain stage is differentially coupled to a noise shaping stage which is also differentially coupled to a decision circuit. A method that involves differentially coupling white noise into a gain stage. The white noise is differentially amplified with an amplifier which produces a first white noise signal. 1/f noise and offset voltage is substantially removed from said first white noise signal to produce a second white noise signal. A random sequence signal is produced by deciding whether the second white noise signal is a 1 or 0.
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