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. 26, 2017
Filed:
Nov. 17, 2014
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Hirotaka Kokubo, Minato, JP;
Dai Yamamoto, Kawasaki, JP;
Masahiko Takenaka, Kawasaki, JP;
Kazuyoshi Furukawa, Kawasaki, JP;
Tetsuya Izu, London, GB;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
An apparatus for generating physical random numbers includes a physical random number generator configured to generate physical random numbers, a test unit configured to perform a test process to check randomness of the physical random numbers, a minimum entropy estimating unit configured to estimate a minimum entropy based on statistical information generated as a byproduct of the test process, an entropy compressing unit configured to perform an entropy compression process using the physical random numbers as an input, and an entropy control unit configured to control based on the minimum entropy a number of bits of the physical random numbers input into the entropy compression process performed by the entropy compressing unit.