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    • 31. 发明授权
    • USB host, control method thereof, computer program, USB hub and USB device for allowing upgraded operation
    • USB主机,其控制方法,计算机程序,USB集线器和USB设备,用于允许升级操作
    • US08214542B2
    • 2012-07-03
    • US12383480
    • 2009-03-24
    • Akio TakamotoTakeshi Yamada
    • Akio TakamotoTakeshi Yamada
    • G06F3/00
    • G06F13/4045
    • A USB host is provided which can connect to a USB device via a USB hub, the USB host including, a combination storage unit that stores an upgrade allowable combination, for which upgrading of the USB device is allowed, among a combination of hub identification information for identifying the USB hub and device identification information for identifying the USB device; an identification information acquisition unit acquires hub identification information from the USB hub in compliance with USB standards when the USB hub is connected and acquires device identification information from the USB device in compliance with USB standards when the USB device is in connected to the USB hub; and a command transmission unit that transmits an upgrade command to the USB device when a combination of the acquired hub identification information and the acquired device identification information is identical to the combination stored in the combination storage unit.
    • 提供USB主机,其可以通过USB集线器连接到USB设备,USB主机包括存储可升级的USB设备的可升级允许组合的组合存储单元,集线器识别信息 用于识别用于识别USB设备的USB集线器和设备标识信息; 当USB集线器连接时,识别信息获取单元从USB集线器获取集线器识别信息,并且当USB设备连接到USB集线器时从USB设备获取设备识别信息; 以及命令发送单元,当所获取的集线器识别信息和所获取的设备识别信息的组合与存储在组合存储单元中的组合相同时,向USB设备发送升级命令。