Storage device

摘要

A storage device started when connected to a computer so as to be able to communicate. The storage device includes: an interface for controlling communication with the computer, a data storage unit for storing data received from the computer via the interface, a radio signal processing unit for receiving radio signals including ID information at a predetermined timing and for authenticating the received ID information, and a control unit for encrypting data using the authenticated ID information as a key, for sending the encrypted data to a data storage unit, and for disabling communication with the computer via the interface when radio signals including the authenticated ID information are not received by the radio signal processing unit within a predetermined period of time.

主权项

1. A storage device started when connected to a computer so as to be able to communicate, the storage device comprising:
an interface for controlling communication with the computer; a data storage unit for storing data received from the computer via the interface; a radio signal processing unit having a timer unit and an antenna, the antenna of the radio signal processing unit receiving radio signals including ID information from a wireless ID card at a predetermined timing and for authenticating the received ID information; a control unit for encrypting data using the authenticated ID information as a key, for sending the encrypted data to a data storage unit, and for disabling communication with the computer via the interface when radio signals including the authenticated ID information are not received from the wireless ID card by the radio signal processing unit within a predetermined period of time determined by the timer unit, the radio signal processing unit polling the wireless ID card on a repeated basis during the predetermined period of time for receiving the authenticated ID information from the wireless ID card; andan ID information storage unit for storing the ID information; and an authentication switch for the ID information; wherein the control unit instructs the radio signal processing unit to store the received ID information in the ID information storage as registered ID information when the authentication switch is turned on, wherein the radio signal processing unit, whenever the authentication switch is turned off, performs authentication by determining whether or not the received ID information matches the registered ID information stored in the ID information storage unit.