Patent ID: 7675557

Claim:
A storage device which is connected to an image pickup apparatus having a first image storage medium capable of storing plural captured images and image display means, and which is adapted for backup of image information stored in the first image storage medium, the device comprising: a second image storage medium capable of storing plural image information; a connection detecting unit configured to detect the connection with the image pickup apparatus; a reception unit configured to accept a backup instruction for the captured image based on an operation of a user; a back-up unit configured to receive predetermined captured image information, which is read out from the first image storage medium, from the image pickup apparatus and write the predetermined captured image information into the second image storage medium in accordance with a detection output of the connection detecting unit and an output of the reception unit; a conversion unit configured to convert the predetermined captured image information written in the second image storage medium by the back-up unit, into image information of a decreased data amount; and a transfer unit configured to transfer the image information converted by the conversion unit to the image pickup apparatus so that the image information converted by the conversion unit is copied onto the first image storage medium.