Patent ID: 8387157

Claim:
A digital broadcast receiver configured to receive a real-time digital broadcast program, comprising: a first storage device; a second storage device being detachable; a controller configured to receive the real-time digital broadcast program, and while receiving the real-time digital broadcast program, first detect that the second storage device is not installed in the digital broadcast receiver and automatically store a first part of the real-time digital broadcast program in the first storage device; and later detect that the second storage device is installed in the digital broadcast receiver, automatically store a second part of the real-time digital broadcast program in the second storage device, and automatically transfer the first part of the real-time digital broadcast program from the first storage device to the second storage device, the controller configured to automatically transfer the first part to the second storage device while the second part is being stored in the second storage device; a mechanical coupler configured to physically connect the second storage device to the digital broadcast receiver; and an electrical coupler configured to electrically connect the second storage device to the digital broadcast receiver, the electrical coupler configured to supply power and data to the second storage device, wherein the first and the second storage devices comprise a digital storage medium, including a hard disk, wherein the electrical and mechanical couplers are configured to perform a hot swap, and wherein, for the hot swap, the electrical coupler is configured to be connected in an order of an earth connection, a signal and power connection, and a storage device detection signal connection, and separated in an order of the storage device detection signal connection, the signal and power connection, and the earth connection.