| US 7,574,552 B2 | ||
| Target device to be connected to IEEE 1394 serial bus | ||
| Hiroki Sakai, Daito (Japan) | ||
| Assigned to Funai Electric Co., Ltd., Daito-shi (Japan) | ||
| Filed on Aug. 17, 2006, as Appl. No. 11/505,309. | ||
| Claims priority of application No. 2005-239026 (JP), filed on Aug. 19, 2005. | ||
| Prior Publication US 2007/0067550 A1, Mar. 22, 2007 | ||
| Int. Cl. G06F 13/36 (2006.01) | ||
| U.S. Cl. 710—315 [710/305; 710/306; 711/165] | 14 Claims |
| 1. A target device to be connected to IEEE 1394 serial bus, connected to a controller device via the IEEE 1394 serial bus,
and connected to an external HDD (Hard Disk Drive) via USB (Universal Serial Bus), the target device comprising:
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, wherein the target device is directly connected
to the external HDD via only the USB;
a memory for storing control programs to control the target device; and
a microprocessor for controlling operation of the target device based on the control programs stored in the memory and according
to a command sent from the controller device,
wherein the control programs stored in the memory include a function expansion program containing instructions for various
processes to allow the target device to function like a target device with a built-in HDD recorder even though the HDD is
external to the target device, wherein the target and controller devices are digital television receivers and each include
a tuner.
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