| 摘要 |
A target device is provided which is connected to a controller device via IEEE 1394 serial bus, and to an HDD via USB. The target device comprises: an IEEE 1394 interface for sending and receiving a control command, its response signal and stream data to and from the controller device; a USB interface for sending and receiving data to and from the HDD via the USB; a memory for storing control programs to control the target device; and a microprocessor for controlling the operation of the target device based on the control programs stored in the memory and according to a command sent from the controller device. This target device makes it possible to allow an HDD of the type, which is connected to the target device by USB and is thus less expensive than an AVHDD, to serve as a disk subunit on an IEEE 1394 network.
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