| 摘要 |
According to one embodiment, making an account management server manage also a user ID in the recording medium in a way, which transfers a firmware update toll of a set-top box (STB) terminal by using a recording medium such as a Secure Digital card as a medium, associates a medium and an account with each other. When loading the recording medium in the STB terminal, the STB terminal also associates an STB property with the account management server as account management data. Thereby, when loading a recording medium the next time, the update tool is automatically downloaded to the recording medium if a firmware function update tool is provided. If the recording medium is shared with a plurality of STB terminals, all of necessary firmware tools for the STB terminals are downloaded to the recording medium.
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