Kabushiki Kaisha Toshiba

Kazunari Tanzawa

Koichi Kobayashi

This invention relates to a portable external storage device including a battery which supplies power to a communication section which communicates with a plurality of information processing apparatuses, a detection unit which detects a remaining amount of the battery, a storage unit which stores setting information representing a notifying method for information about a remaining amount of the battery transmitted from the information processing apparatus serving as a host device, and a remaining amount of the battery at which a warning is generated, and a notifying unit which notifies the host device of information about the remaining amount of the battery detected by the detection unit on the basis of the setting information stored in the storage unit.

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Nishitokyo, Japan

Kazunari Tanzawa