| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a security system for a hard document that prevents information leakage externally from the inside of a confidential area by inhibiting the takeout of the hard document provided with an information storage means utilizing a high Barkhausen effect from the inside of the confidential area. <P>SOLUTION: When a detector detects the hard document 1 provided with the information storage means utilizing the high Barkhausen effect in the confidential area 300 formed as a space wherein a passage is shut off except a gateway, the tangibility and copying of the information of the hard document 1 are attained, and when the detector detects a hard document not provided with an information storage means, the tangibility and copying of the information are disabled. The gateway of the confidential area 300 is arranged with a gate unit 304 that prevents the hard document 1 from passing through the gateway and being brought out to the outside when the detector detects the hard document 1. <P>COPYRIGHT: (C)2007,JPO&INPIT |
