Method and apparatus for random-number generator
First Claim
1. A method for generating random numbers for use in a wireless communication device, the method comprising:
- generating random numbers having an adjustable distribution based on at least one adjustable input value;
gathering a sample of the generated random numbers;
computing at least one metric based on the sample;
comparing the metric with a corresponding reference value; and
adjusting the adjustable input value based on a result of said comparing so that the generated random numbers achieve a desired distribution;
wherein adjusting the adjustable input value based on said comparing comprises;
adjusting a dc offset value for generating an analog noise voltage to cause the generated random numbers to achieve a desired numeric mean; and
adjusting a reference voltage value to cause the generated random numbers to achieve a desired numeric range.
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Accused Products
Abstract
Method and apparatus for generating random numbers are disclosed. In one aspect, a method for generating random numbers for use in a wireless communication device provides for generating random numbers, gathering a sample of the generated random numbers, and computing at least one metric, such as mean value, standard deviation, and/or entropy. The method further provides for comparing the metric with a corresponding reference value and adjusting the metric based on a result of said comparison so that the generated random numbers achieve a desired distribution. In another aspect, an apparatus for generating random numbers includes an analog noise generator and hardware components for generating random numbers and feedback values to adjust the random numbers. The apparatus further includes a processor capable of executing instructions to carry out control algorithms for adjusting the random numbers.
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Citations
36 Claims
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1. A method for generating random numbers for use in a wireless communication device, the method comprising:
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generating random numbers having an adjustable distribution based on at least one adjustable input value; gathering a sample of the generated random numbers; computing at least one metric based on the sample; comparing the metric with a corresponding reference value; and adjusting the adjustable input value based on a result of said comparing so that the generated random numbers achieve a desired distribution; wherein adjusting the adjustable input value based on said comparing comprises; adjusting a dc offset value for generating an analog noise voltage to cause the generated random numbers to achieve a desired numeric mean; and adjusting a reference voltage value to cause the generated random numbers to achieve a desired numeric range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for generating random numbers in a wireless communication device, comprising:
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means for generating random numbers having an adjustable distribution based on at least one adjustable input value; means for gathering a sample of the generated random numbers; means for computing at least one metric based on the sample; means for comparing the metric with a corresponding reference value; and means for adjusting the adjustable input value based on a result of said comparing so that the generated random numbers achieves a desired distribution; wherein the means for adjusting the adjustable input value based on said comparing comprises; means for adjusting a dc offset value for generating an analog noise voltage to cause the generated random numbers to achieve a desired numeric mean; and means for adjusting a reference voltage value to cause the generated random numbers to achieve a desired numeric range. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A computer-readable medium embodying means for implementing a method for generating random numbers in a wireless communication device, the method comprising:
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computing at least one metric based on a sample of randomly generated numbers having an adjustable distribution based on at least one adjustable input value; comparing the metric with a corresponding reference value; and adjusting the adjustable input value based on a result of said comparing so that the generated random numbers achieves a desired distribution; wherein adjusting the adjustable input value based on said comparing comprises; adjusting a dc offset value for generating an analog noise voltage to cause the generated random numbers to achieve a desired numeric mean; and adjusting a reference voltage value to cause the generated random numbers to achieve a desired numeric range. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. A processor for implementing a method for adjusting randomly generated numbers, the method comprising:
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computing at least one metric based on a sample of randomly generated numbers having an adjustable distribution based on at least one adjustable input value; comparing the metric with a corresponding reference value; and adjusting the adjustable input value based on a result of said comparing so that the generated random numbers achieves a desired distribution; wherein adjusting the adjustable input value based on said comparing comprises; adjusting a dc offset value for generating an analog noise voltage to cause the generated random numbers to achieve a desired numeric mean; and adjusting a reference voltage value to cause the generated random numbers to achieve a desired numeric range. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
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Specification