Patent attributes
According to one embodiment, a storage device includes a wireless communication circuit, a storage, and a controller circuit. The wireless communication circuit is configured to connect to an external first device by wireless communication. The storage has a storage region. The controller circuit is configured to correct first information on the basis of a first capacity which is a free space of the storage region of the storage. The first information is numerical information indicating quality of the wireless communication with the first device. The controller circuit obtains second information being the corrected first information.