| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent a file in a computer from being browsed by an unauthorized person. <P>SOLUTION: A step, in which an authentication task is performed by comparing an identification code 22 for a storage part 17 with an identification code 23 for a USB memory 12 in a state where the USB memory 12 is connected with a computer 26, a step, in which protected files 20a, 20c, 20e are inhibited from being displayed on a screen for the computer when the computer 26 can not communicate with the USB memory 12, and a step, in which the protected files 20a, 20c, 20e are allowed to be displayed when the authentication is acceptable, are made to be executed by the computer 26. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
