Abstract: According to one embodiment, an information transmission apparatus includes a connection module, a detector, an output module, and a transmitter. The connection module is configured to connect at least one external device. The detector is configured to detect a status of at least one content compatible with the at least one external device connected by the connection module. The output module is configured to output display information for display a connection state with at least one compatible external device compatible with the at least one content having the status, the at least one compatible external device included in the at least one external device connected by the connection module. The transmitter is configured to transmit a selected content to the at least one compatible external device displayed based on the display information.

Abstract: According to one embodiment, a data transmission control section ends transmission of a title without copyright protection at time t2. When transmission time of the title exceeds prescribed time, interruption of the transmission is posted to a reception-side device, and a key discard/creation section creates a new encryption key. A copyright-protected title is transmitted to the reception-side device by using the new key.