Random number generating circuit

Details Random number generating circuit Random number generating circuit

2006-09-19

2006-09-19

Ngo, Chuong D. (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

07111029

ABSTRACT:
A random number generating circuit can generate random numbers with high randomness, and can be made as a compact integrated circuit. The random number generating circuit includes an uncertain logic circuit having a flip-flop type logic circuit that gives digital output values not determined definitely by a digital input value, and an equalizing circuit having an exclusive OR operating circuit for equalizing appearance frequencies of “0” and “1” in the digital output values output from the uncertain logic circuit.

REFERENCES:
patent: 5365122 (1994-11-01), Rackley
patent: 5570307 (1996-10-01), Takahashi
patent: 5963104 (1999-10-01), Buer
patent: 6480072 (2002-11-01), Walsh et al.
patent: 6631390 (2003-10-01), Epstein
patent: 6697829 (2004-02-01), Shilton
patent: 2001-166920 (2001-06-01), None
U.S. Appl. No. 10/661,593, filed Sep. 15, 2003, Yasuda et al.

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