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US 7,145,933 B1Granted
Method and apparatus for generating random signals
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorWieslaw Jerzy Szajnowski
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Abstract
A random binary signal is generated using a plurality of noise sources, each of which defines events occurring at random intervals, the outputs of the sources being combined in such a way that the events are interspersed in the resultant signal.
Claims11
A method of generating a random binary waveform containing events which occur at random intervals, the method comprising:
- deriving, from a physical noise source, a first preliminary signal containing first events occurring asynchronously and at random intervals;
- and
- multiplying the first preliminary signal with at least one further preliminary signal containing further events, said at least one further preliminary signal being a deterministic signal, so as to intersperse the first and further events;
- wherein the physical noise source produces a non-deterministic output.
1 more element
Apparatus for generating a random binary waveform containing events which occur at random intervals, the apparatus comprising:
- a physical noise source producing a random output signal;
- means for deriving, from said random output signal, a first preliminary signal containing first events occurring asynchronously at random intervals;
- means for providing at least one further preliminary signal containing further events occurring at said random intervals, said further preliminary signal being a deterministic signal;
- and
- means for multiplying the first preliminary signal and said at least one further preliminary signal so as to produce a random binary waveform in which said first and further events are interspersed;
- wherein the physical noise source produces a non-deterministic output.
3 more elements
Dependencies are inferred from the claim text.