Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 22, 2011
Patent Application Number
11657575
Date Filed
January 25, 2007
Patent Primary Examiner
Patent abstract
A USB interface provided with USB host/device function and its control method is disclosed. The USB interface includes a control unit, a USB host, a USB device, a memory, a port router and a plurality of connection ports. The control unit is used to define the connection ports to be either an upstream port or downstream port. It also controls signal flows within the USB control interface. The signal flows are provided for the USB host and the USB device. The memory is used to store data during the operation of the USB control interface. The USB host is coupled to an external device via the port router, and the USB device is coupled to an external host via the port router.
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