Patent ID: 7065024
Filing Date: 2006-06-20
Classification: G06F,G11B

Abstract:
1. A disk drive device comprising a signal detection section that detects a disk signal and a disk ejection mechanism that ejects a disk, characterized in that said disk drive device comprises: mechanism control means that controls the drive of said disk ejection mechanism and authentication control means that outputs a disk ejection instruction to said mechanism control means when a disk ejection instruction and authentication information are input, said authentication control means being connected with authentication information input means that inputs authentication information, and said authentication control means comprises: an authentication information storage section that stores prescribed authentication information; a decision section that determines whether or not the authentication information that is input from said authentication information input means agrees with the authentication information that is stored in said authentication information storage section; and a disk ejection instruction section that outputs a disk ejection instruction to said mechanism control means if a disk ejection instruction is input and said decision section determines that the authentication information is in agreement, said authentication information includes disk-specific information that is detected by said signal detection section on the disk and stored in said authentication information storage section, said disk-specific information is selected from one or more of the disk title, file name, holder name, table of contents information and playing time; and a display screen for displaying disk-specific information when a disk is inserted into the disk drive device and a user is enabled to select from the disk-specific information the authentication information to be stored by the authentication information input means.