Low power random bit generator and random number generator
AssigneeSamsung Electronics Co., Ltd.
InventorCheol-Min Kim
Life of this patent
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Abstract
Provided is a low power random bit generator utilizing a multiplying digital to analog converter (MDAC) which is used in a switched capacitor amplifying circuit and an analog to digital converter with a pipeline architecture. The low power random bit generator includes: an MDAC, outputting a predetermined analog voltage formed by using a ground voltage, a reference voltage, an initial voltage and a digital signal; a comparator, outputting a direct current (DC) voltage determined by comparing the analog voltage with the ground voltage; and a data storage unit, storing a predetermined digital signal corresponding to the DC voltage, and outputting the digital signal.
Claims13
A random bit generator comprising:
- a multiplying digital to analog converter (MDAC), outputting a predetermined analog voltage formed by using a ground voltage, a reference voltage, an initial voltage and a digital signal;
- a comparator, outputting a direct current (DC) voltage determined by comparing the analog voltage with the ground voltage;
- and
- a data storage unit, storing a predetermined digital signal corresponding to the DC voltage, and outputting the digital signal.
A random number generator comprising:
- a random bit generator, including a multiplying digital to analog converter (MDAC) that generates a random bit by using an initial voltage, a reference voltage, a ground voltage and a digital signal each of which has a predetermined voltage level, a comparator that compares the random bit of the MDAC with the ground voltage, and a data storage unit that stores output data of the comparator and outputs the digital signal;
- and
- a digital post processor, digitally performing an algorithm on the digital signal, such as correction and compression, for the output data.
Dependencies are inferred from the claim text.