| 摘要 |
<p>A user authentication system of the present invention includes: a first wireless tag having first ID data about a user and a first antenna for transmitting the first ID data; a second wireless tag having second ID data different from the first ID data, and a second antenna, perpendicular to the first antenna, for transmitting the second ID data; a wireless-tag receiver for receiving the first ID data transmitted from the first antenna and the second ID data transmitted from the second antenna; and a use-permission determining apparatus for determining whether the ID data received by the receiver matches pre-registered ID data, and for determining, based on timing of or counts of receptions of the first ID data and the second ID data received during a predetermined period of time, whether use is permitted.</p> |
