Random number generator

An apparatus to generate random numbers, the apparatus comprising:

• a circuit element having a first input terminal to receive a first signal having a first frequency and a second input terminal to receive a second signal having a second frequency smaller than the first frequency;
• a first signal generator coupled to the first input terminal of the circuit element to provide the first signal;
• a second signal generator coupled to the second input terminal of the circuit element to provide the second signal;
• a third signal generator coupled to the first signal generator to provide a third signal to control the first signal generator;
• and
• a delay element coupled to the second signal generator to provide a delay to the second signal that is at least equal to a maximum period of the first signal.

A method to generate random numbers, the method comprising:

• providing a first signal at a first frequency in a predetermined range as a data input of a flip-flop;
• controlling an instantaneous frequency of the first signal;
• providing a second signal at a second frequency smaller than the first frequency;
• and
• delaying the second signal with a delay at least equal to a maximum period of the first signal and providing the delayed second signal as a clock input of the flip-flop.

A system for generating random numbers, the system comprising:

• a means for providing a first signal at a first frequency in a predetermined range as a data input of a flip-flop;
• a means for controlling an instantaneous frequency of the first signal;
• a means for providing a second signal at a second frequency smaller than the first frequency;
• and
• a means for delaying the second signal with a delay at least equal to a maximum period of the first signal and providing the delayed second signal as a clock input of the flip-flop.