| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent the leakage of confidential information to the outside by automatically controlling the reference of data stored in a storage means according to the entrance/exit configurations of entrance and exit. <P>SOLUTION: This portable equipment is configured to receive a question signal to ask whether or not portable equipment having the storage means of data is carried from an entrance/exit management device installed in an entrance/exit port of a specific range, and to return a reply signal configured of information showing that the portable equipment having the storage means of the data is carried and additional information corresponding to the current reference control status to the entrance/exit management device in response to the question signal, and to receive a reference control signal generated based on the returned additional information from the entrance/exit management device, and to control the data stored in the storage means in its own equipment so as not to be referenced or so as to be referenced according to the reference control signal. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
