| 摘要 |
<P>PROBLEM TO BE SOLVED: To authenticate the owner of a relevant device by means of an existing card that the owner always carries about. <P>SOLUTION: A personal digital assistant device comprises a magnetic head 15 for reading owner data D1 from a magnetic card 2, an EEPROM 18 for storing the owner data D1 acquired from the magnetic head 15 as authentication data (N) for principal authentication, and a CPU 25 for, when owner data D1 are read from a magnetic card 2 by the magnetic head 15 as authentication input data, comparing the authentication data N stored in the EEPROM 18 with the authentication input data read from the magnetic card 2 to authenticate the device owner based on the comparison result. The configuration can authenticate the owner of the relevant device by means of an existing card that the owner always carries about. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
