Seed generating circuit, random number generating circuit,...

Details Seed generating circuit, random number generating circuit,... Seed generating circuit, random number generating circuit,...

2008-05-19

2011-12-06

Mai, Tan V (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

08073889

ABSTRACT:
A random number generating circuit comprises: the seed generating circuit which generates a seed; and a pseudo random number circuit which generates pseudo random numbers based on the seed generated by the seed generating circuit. The seed generating circuit has: an oscillating circuit which oscillates continuously or intermittently, and which outputs a digital data sequence; a smoothing circuit which outputs time series data by controlling appearance frequencies of “0” and “1” in the digital data sequence outputted from the oscillating circuit; and a postprocessing circuit which generates one-bit seed by a computation using a plurality of bits included in the time series data.

REFERENCES:
patent: 6285761 (2001-09-01), Patel et al.
patent: 6571263 (2003-05-01), Nagai
patent: 6631390 (2003-10-01), Epstein
patent: 2003/0037079 (2003-02-01), Wilber
patent: 2004/0107229 (2004-06-01), Remi
patent: 3-204721 (1991-09-01), None
patent: 2000-276330 (2000-10-01), None
patent: 2002-215030 (2002-07-01), None
Patent Abstracts of Japan, JP 2002-215030, Jul. 31, 2002.

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