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:
Sep. 19, 2006
Filed:
Sep. 06, 2002
Shinobu Fujita, Kanagawa-ken, JP;
Ken Uchida, Kanagawa-ken, JP;
Ryuji Ohba, Kanagawa-ken, JP;
Junji Koga, Kanagawa-ken, JP;
Shinobu Fujita, Kanagawa-ken, JP;
Ken Uchida, Kanagawa-ken, JP;
Ryuji Ohba, Kanagawa-ken, JP;
Junji Koga, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
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.