发明名称 |
PSEUDORANDOM NUMBER GENERATION CIRCUIT AND ELECTRONIC DEVICE |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pseudorandom number generation circuit and an electronic device that can generate parallelized pseudorandom number data without using a high frequency clock signal. <P>SOLUTION: The pseudorandom number generation circuit comprises M (natural number not less than fifteen) shift registers numbered consecutively from one, and a connection circuit for connecting each shift register. Each shift register shifts an input signal at the same clock signal. The outputs of the last n (natural number not more than M) shift registers are output as parallelized pseudorandom number data. The connection circuit calculates the value of a function F(m-n) and inputs it into the m-th (natural number not more than M) shift register. The function F(x) is expressed as the output of the x-th shift register for 0<x and as the exclusive OR of F(x+14) and F(x+15) for x≤0. <P>COPYRIGHT: (C)2008,JPO&INPIT |
申请公布号 |
JP2008210139(A) |
申请公布日期 |
2008.09.11 |
申请号 |
JP20070046054 |
申请日期 |
2007.02.26 |
申请人 |
NTT ELECTORNICS CORP |
发明人 |
MORITA YASUSHI;SAITO SHIGEKI;SASAKI MAKOTO;NAKAMURA TETSUO |
分类号 |
G06F7/58;G09C1/00;H03K3/84 |
主分类号 |
G06F7/58 |
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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