发明名称 |
RANDOM NUMBER GENERATOR AND RANDOM NUMBER GENERATION METHOD |
摘要 |
The present invention relates to a random-number generating apparatus and method for generating physical random numbers in accordance with noises randomly generated by a noise generating element, and allows for generating true random numbers at a high speed and uniformizing the generation frequency of each random number value, even in a simplified circuit configuration. The random-number generating apparatus is operable to amplify a waveform based on thermal noises generated in a thermal-noise generating element, and generate a random pulse at the time when the amplified output signal exceeds a given threshold from the state of being less than the threshold. The random-number generating apparatus is also provided with a reference-pulse generator for generating a reference pulse having a constant period, and a timer for measuring a time interval between the reference pulse and the random pulse. The measured value in the timer is output as a random number value. <IMAGE>
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申请公布号 |
EP1544726(A1) |
申请公布日期 |
2005.06.22 |
申请号 |
EP20030788003 |
申请日期 |
2003.02.04 |
申请人 |
INSTITUTE FOR ADVANCED STUDIES CO., LTD.;LEISURE ELECTRONICS TECHNOLOGY CO., LTD.;MITSUI & CO., LTD. |
发明人 |
SAITO, TAKESHI |
分类号 |
G06F1/02;G06F7/58;(IPC1-7):G06F7/58 |
主分类号 |
G06F1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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