| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an entry and exit device and an access code recorder for constituting an entry and exit system for permitting or prohibiting an entry of a person into a specific area. <P>SOLUTION: A memory card 2 for enciphering and recording an access code for entering the specific area, has a memory card slot 31 for constituting a detachably installed card installing means, a mutually authenticating means for mutually authenticating with the memory card 2 installed in the memory card slot 31, a signal processing circuit 32 for constituting a code decoding means for decoding the access code by a code key corresponding to the access code readable from the memory card 2 when mutually authenticated as just by the mutually authenticating means, and a radio tag 35 for constituting a radio transmission means for transmitting the access code decoded by the signal processing circuit 32 by radio transmission. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
