| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent, for example, the manufacture of illegal imitations of an amplification device. <P>SOLUTION: By a control unit, when a parameter is determined to be normal in processing in S100 and S102, data 1 is read out from a memory device A in S120, and data 2 is read out from another memory device B in S122. It is determined in S124 whether a combination of the data 1 and the data 2 is normal, control is performed so that an amplifier normally performs an amplification operation when it is normal, and otherwise, control is performed so that the amplification operation of the amplifier is limited. <P>COPYRIGHT: (C)2012,JPO&INPIT |
