Patent ID: 11956404
Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  B  G | IPC G  H

Claim 2:
3. An authentication device comprising:
a storage device that previously stores user information for identifying a user and a plurality of fixed passwords in association between the user information and the plurality of fixed passwords;
an input device for use in entering user information and a password; and
a controller that executes login when user information and a password are entered through the input device and the entered password is identical to one of the plurality of fixed passwords previously stored in association with the entered user information in the storage device,
wherein when the entered password is identical to none of the plurality of fixed passwords previously stored in association with the entered user information in the storage device and any one of the plurality of fixed passwords satisfies a predetermined condition on similarity to the entered password, the controller inhibits an authentication based on the fixed password satisfying the predetermined condition from being made for a predetermined period,
wherein when a number of the plurality of fixed passwords previously stored in the storage device is equal to or smaller than a predetermined number, the controller sets the predetermined period to a period equal to or shorter than a predetermined time, and wherein when the number of the plurality of fixed passwords is greater than the predetermined number, the controller sets the predetermined period to a period longer than the predetermined time.