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Patent Searching and Data


Title:
RANDOM NUMBER GENERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/203466
Kind Code:
A1
Abstract:
This random number generating device comprises: an arithmetic random number generating unit (3) which generates an arithmetic random number series; an arithmetic random number conversion unit (5) which reads out one or more arithmetic random numbers from the arithmetic random number series in sequence, and converts the values of the read-out arithmetic random numbers into either voltages or currents with the same polarity whereby predetermined values of two or greater gradations may be acquired; a hysteresis unit (7) which, with respect to sequentially inputted voltages or currents, outputs values which are dependent upon the values of the voltages or currents inputted at said time and the values of voltages or currents inputted prior thereto; and a threshold processing unit (9) which binarizes the output of the hysteresis unit. The arithmetic random number conversion unit (5) uses the voltages or currents which are converted on the basis of the arithmetic random numbers to alternately output positive values and negative values, and outputs the values of the voltages or currents by which the values of two or greater gradations which are converted according to the arithmetic random number values may be acquired as the positive values and/or the negative values.

Inventors:
UEDA, Michihito
NISHITANI, Yu
KANEKO, Yukihiro
TSUJIMURA, Ayumu
Application Number:
JP2014/002826
Publication Date:
December 24, 2014
Filing Date:
May 28, 2014
Export Citation:
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Assignee:
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (1-61, Shiromi 2-chome Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
International Classes:
G06F7/58; H03K3/84
Foreign References:
JP2003150374A2003-05-23
JP2004280486A2004-10-07
JP2009070009A2009-04-02
Attorney, Agent or Firm:
FUJII, Kentaro et al. (Ltd. 1-61 Shiromi 2-chome, Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
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