[0457] As shown in FIG. 32, the cradle 5 includes a conversion section 131 and the monitor terminal 132. The conversion section 131 includes, for example, circuitry configured for performing video and sound conversion and is connected to the main body terminal 73 and the monitor terminal 132. The conversion section 131 converts a signal format regarding images (referred to also as video) and sound received from the main unit 2 into a format to be output to the TV 6. In the present embodiment, the
main unit 2 outputs image and sound signals
to the cradle 5 as
a display port signal (i.e., a signal in accordance with the
DisplayPort standard). In the present embodiment, communication based on the HDMI (registered trademark) standard is used for communication between the cradle 5 and the TV 6. That is, the monitor terminal 132 is an HDMI terminal, and the cradle 5 and the TV 6 are connected together by an HDMI cable. Thus, the conversion section 131
converts the display port signal (specifically, a signal representing video and sound) received from the main unit 2 via the main body terminal 73
into an HDMI signal. The converted HDMI signal is output to the TV 6 via the monitor terminal 132.