The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 06, 2012
Filed:
May. 30, 2008
Mari Matsumoto, Yokohama, JP;
Ryuji Ohba, Kawasaki, JP;
Shinichi Yasuda, Kawasaki, JP;
Shinobu Fujita, Inagi, JP;
Mari Matsumoto, Yokohama, JP;
Ryuji Ohba, Kawasaki, JP;
Shinichi Yasuda, Kawasaki, JP;
Shinobu Fujita, Inagi, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A random number generating device includes: a pulse voltage generator configured to generate a pulse voltage having an amplitude of 26 mV or more; a random noise generating element including source and drain regions formed at a distance from each other on a semiconductor substrate, a tunnel insulating film formed on a portion of the semiconductor substrate located between the source region and the drain region, and a gate electrode formed above the tunnel insulating film and to which the pulse voltage is applied, the random noise generating element configured to generate a random noise contained in a current flowing between the source region and the drain region; and a random number generating unit configured to generate a random number signal based on the random noise.