Electronic apparatus, software update method, and storage medium

摘要

An electronic apparatus has a normal mode and an energy saving mode for reducing power consumption, and includes a main control unit, a sub control unit, a main storage unit, and a sub storage unit. The sub control unit includes a processing unit performing a part of an update process by storing software update data in the sub storage unit when a software update request is received during the energy saving mode. The main control unit includes a processing unit performing a rest of the update process by moving or copying the software update data from the sub storage unit to the main storage unit and by updating software stored in the main storage unit with the software update data after the electronic apparatus returns from the energy saving mode to the normal mode.

主权项

1. An electronic apparatus having a normal mode and an energy saving mode for reducing power consumption, the electronic apparatus comprising:
a main control unit configured to update software; and a sub control unit configured to store software update data associated with the software update request, when a software update request is received from an outside during the energy saving mode, wherein the main control unit includes a first processor that performs the updating process for updating software stored by the sub control unit when the electronic apparatus returns from the energy saving mode; wherein the sub control unit includes, a determining unit that, when the software update request is received during the energy saving mode, is configured to determine if the software update data associated to the software update request is storable based on a size of the software update data and a size of free space in a storage unit configured to store the software update data; wherein when the determining unit determines that the software update data is not storable, the sub control unit requests the main control unit to cause the electronic apparatus to return from the energy saving mode to the normal mode; and wherein when the determining unit determines that the software update data is storable, the sub control unit performs a control so that the main control unit performs the updating process after the electronic apparatus returns from the energy saving mode to the normal mode; and a second processor is configured to,
determine whether a size of the software update data is greater than a size of free space in the sub storage unit,suspend the update process and report, to a user, error information indicating that the update process cannot be continued if the size of the software update data is greater than the size of the free space, andcause the electronic apparatus to return from the energy saving mode to the normal mode only if the user requests to continue the update process; wherein the first processor performs the update process if the electronic apparatus is caused to return from the energy saving mode to the normal mode in response to the request to continue the update process, and wherein if the software update request is received and the electronic apparatus returns from the energy saving mode to the normal mode in response to a user request having priority over the update process, the first processor performs the update process after performing a process requested by the user request.